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ORDER NO. KM41410878CE
Telephone Equipment
Model No.
KX-TGC220
(Base Unit)
KX-TGCA20
(Handset)
KX-TGC220AL
KX-TGC220NZ
KX-TGC222AL
KX-TGC222NZ
KX-TGC223AL
KX-TGC223NZ
KX-TGCA20AZ
Digital Cordless Answering System
S: Silver Version
(Charger Unit)
(AL : for Australia)
(NZ : for New Zealand)
Configuration for each model
Model No
KX-TGC220
KX-TGC222
KX-TGC223
KX-TGCA20
Base Unit Handset Charger Unit
1 (TGC220) 1 (TGCA20)
1 (TGC220) 2 (TGCA20)
1
1 (TGC220) 3 (TGCA20)
2
1 (TGCA20)
1
© Panasonic System Networks Co., Ltd. 2014
Unauthorized copying and distribution is a violation
of law.
KX-TGC220/KX-TGC222/KX-TGC223/KX-TGCA20
WARNING
This service information is designed for experienced repair technicians only and is not designed for use by the general
public. It does not contain warnings or cautions to advise non-technical individuals of potential dangers in attempting
to service a product. Products powered by electricity should be serviced or repaired only by experienced professional
technicians. Any attempt to service or repair the product or products dealt with in this service information by anyone
else could result in serious injury or death.
IMPORTANT SAFETY NOTICE
There are special components used in this equipment which are important for safety. These parts are marked by
in the Schematic Diagrams, Circuit Board Diagrams, Exploded Views and Replacement Parts List. It is essential that
these critical parts should be replaced with manufacturer’s specified parts to prevent shock, fire or other hazards.
Do not modify the original design without permission of manufacturer.
IMPORTANT INFORMATION ABOUT LEAD FREE, (PbF), SOLDERING
If lead free solder was used in the manufacture of this product, the printed circuit boards will be marked PbF.
Standard leaded, (Pb), solder can be used as usual on boards without the PbF mark.
When this mark does appear, please read and follow the special instructions described in this manual on the
use of PbF and how it might be permissible to use Pb solder during service and repair work.
L When you note the serial number, write down all 11 digits. The serial number may be found on the bottom of the unit.
L The illustrations in this Service Manual may vary slightly from the actual product.
2
KX-TGC220/KX-TGC222/KX-TGC223/KX-TGCA20
TABLE OF CONTENTS
PAGE
1 Safety Precautions----------------------------------------------- 5
1.1. For Service Technicians --------------------------------- 5
2 Warning -------------------------------------------------------------- 5
2.1. Battery Caution--------------------------------------------- 5
2.2. About Lead Free Solder (PbF: Pb free)-------------- 5
2.2.1. Suggested PbF Solder ------------------------------ 6
2.3. Discarding of P. C. Board-------------------------------- 6
3 Specifications ----------------------------------------------------- 7
4 Technical Descriptions ----------------------------------------- 8
4.1. Block Diagram (Base Unit_Main)---------------------- 8
4.2. Circuit Operation (Base Unit) --------------------------- 9
4.2.1. Outline --------------------------------------------------- 9
4.3. Block Diagram (Base Unit_RF Part) -----------------10
4.4. Circuit Operation (Base Unit) -------------------------- 11
4.4.1. BBIC (Base Band IC: IC501) --------------------- 11
4.4.2. Flash Memory (IC601)------------------------------ 11
4.4.3. EEPROM (IC611) ------------------------------------ 11
4.4.4. Power Supply Circuit/Reset Circuit--------------12
4.4.5. Telephone Line Interface---------------------------14
4.5. Block Diagram (Handset)-------------------------------15
4.6. Circuit Operation (Handset)----------------------------16
4.6.1. Outline --------------------------------------------------16
4.6.2. Power Supply Circuit/Reset Circuit--------------16
4.6.3. Charge Circuit ----------------------------------------16
4.6.4. Battery Low/Power Down Detector--------------16
4.6.5. Speakerphone ----------------------------------------16
4.7. Signal Route -----------------------------------------------17
5 Location of Controls and Components ------------------19
6 Installation Instructions ---------------------------------------19
7 Operating Instructions-----------------------------------------19
7.1. For Service Hint-------------------------------------------19
8 Test Mode ----------------------------------------------------------20
8.1. Engineering Mode ----------------------------------------20
8.1.1. Base Unit ----------------------------------------------20
8.1.2. Handset ------------------------------------------------22
8.2. EEPROM LAYOUT (Handset)-------------------------24
8.2.1. Scope ---------------------------------------------------24
8.2.2. Introduction --------------------------------------------24
8.2.3. EEPROM contents ----------------------------------24
8.3. How to Clear User Setting------------------------------25
8.3.1. Resetting both base unit and handset----------25
8.3.2. Resetting only handset -----------------------------25
9 Troubleshooting Guide ----------------------------------------26
9.1. Troubleshooting Flowchart -----------------------------26
9.1.1. Check Power------------------------------------------27
9.1.2. Check Record ----------------------------------------28
9.1.3. Check Playback -------------------------------------29
9.1.4. Check Battery Charge ------------------------------29
9.1.5. Check Link---------------------------------------------30
9.1.6. Check the RF part -----------------------------------32
9.1.7. Registering a Handset to the Base Unit--------36
9.1.8. Deregistering a Handset ---------------------------36
9.1.9. Check Handset Transmission --------------------37
9.1.10. Check Handset Reception-------------------------37
9.1.11. Check Caller ID --------------------------------------37
9.1.12. Bell Reception ----------------------------------------38
9.1.13. Check TAM Operation ------------------------------38
10
11
12
13
14
3
PAGE
9.2. Troubleshooting by Symptom (Base Unit and
Charger Unit)---------------------------------------------- 39
9.2.1. Check Point (Base Unit) --------------------------- 39
9.3. Troubleshooting by Symptom (Handset)----------- 41
9.3.1. Check Point (Handset) ----------------------------- 41
Disassembly and Assembly Instructions--------------- 44
10.1. Disassembly Instructions------------------------------- 44
10.1.1. Base Unit ---------------------------------------------- 44
10.1.2. Handset ------------------------------------------------ 46
10.1.3. Charger Unit ------------------------------------------ 47
10.2. How to Replace the Handset LCD------------------- 48
Measurements and Adjustments -------------------------- 49
11.1. Equipment Required ------------------------------------ 49
11.2. The Setting Method of JIG----------------------------- 49
11.2.1. Connections (Base Unit) -------------------------- 49
11.2.2. How to install Batch file into P.C. ---------------- 50
11.2.3. Commands-------------------------------------------- 50
11.3. Adjustment Standard (Base Unit) -------------------- 51
11.3.1. Bottom View ------------------------------------------ 51
11.4. The Setting Method of JIG (Handset)--------------- 52
11.4.1. Connections ------------------------------------------ 52
11.4.2. How to install Batch file into P.C. ---------------- 53
11.4.3. Commands-------------------------------------------- 53
11.5. Adjustment Standard (Handset) ---------------------- 54
11.5.1. Component View ------------------------------------ 54
11.6. Things to Do after Replacing IC or X'tal ------------ 55
11.6.1. How to download the data ------------------------ 55
11.7. RF Specification ------------------------------------------ 57
11.7.1. Base Unit ---------------------------------------------- 57
11.7.2. Handset ------------------------------------------------ 57
11.8. How to Check the Handset Speaker or
Receiver ---------------------------------------------------- 58
11.9. Frequency Table (MHz)--------------------------------- 58
Miscellaneous---------------------------------------------------- 59
12.1. How to Replace the Flat Package IC --------------- 59
12.1.1. Preparation-------------------------------------------- 59
12.1.2. How to Remove the IC ----------------------------- 59
12.1.3. How to Install the IC -------------------------------- 60
12.1.4. How to Remove a Solder Bridge ---------------- 60
12.2. How to Replace the Shield Case--------------------- 61
12.2.1. Preparation-------------------------------------------- 61
12.2.2. Caution------------------------------------------------- 61
12.2.3. How to Remove the Shield Case---------------- 61
12.2.4. How to Install the Shield Case ------------------- 62
12.3. Terminal Guide of the ICs, Transistors and
Diodes ------------------------------------------------------ 63
12.3.1. Base Unit ---------------------------------------------- 63
12.3.2. Handset ------------------------------------------------ 63
Schematic Diagram -------------------------------------------- 65
13.1. For Schematic Diagram -------------------------------- 65
13.1.1. Base Unit (Base Unit (Main)) --------------------- 65
13.1.2. Handset (Handset (Main)) ------------------------ 65
13.2. Base Unit (Main) ----------------------------------------- 66
13.2.1. KX-TGC220------------------------------------------- 66
13.3. Base Unit (Operation)----------------------------------- 68
13.4. Handset (Main) ------------------------------------------- 70
Printed Circuit Board ------------------------------------------ 73
14.1. Base Unit (Main) ----------------------------------------- 73
KX-TGC220/KX-TGC222/KX-TGC223/KX-TGCA20
14.1.1. Component View ------------------------------------ 73
14.1.2. Bottom View ------------------------------------------ 74
14.2. Base Unit (Operation) ----------------------------------- 75
14.3. Handset----------------------------------------------------- 77
14.3.1. Component View ------------------------------------ 77
14.3.2. Bottom View ------------------------------------------ 78
15 Exploded View and Replacement Parts List ----------- 79
15.1. Cabinet and Electrical Parts (Base Unit) ----------- 79
15.1.1. KX-TGC220------------------------------------------- 79
15.2. Cabinet and Electrical Parts (Handset) ------------- 80
15.3. Cabinet and Electrical Parts (Charger Unit) ------- 81
15.4. Accessories ----------------------------------------------- 82
15.5. Replacement Parts List --------------------------------- 83
15.5.1. Base Unit ---------------------------------------------- 83
15.5.2. Handset ------------------------------------------------ 84
15.5.3. Charger Unit ------------------------------------------ 85
15.5.4. Accessories and Packing Materials------------- 85
15.5.5. Screws ------------------------------------------------- 86
15.5.6. Fixtures and Tools----------------------------------- 86
4
KX-TGC220/KX-TGC222/KX-TGC223/KX-TGCA20
1 Safety Precautions
1.1.
For Service Technicians
• Repair service shall be provided in accordance with repair technology information such as service manual so as to
prevent fires, injury or electric shock, which can be caused by improper repair work.
1. When repair services are provided, neither the products nor their parts or members shall be remodeled.
2. If a lead wire assembly is supplied as a repair part, the lead wire assembly shall be replaced.
3. FASTON terminals shall be plugged straight in and unplugged straight out.
• ICs and LSIs are vulnerable to static electricity.
When repairing, the following precautions will help prevent recurring malfunctions.
1. Cover plastic parts boxes with aluminum foil.
2. Ground the soldering irons.
3. Use a conductive mat on worktable.
4. Do not grasp IC or LSI pins with bare fingers.
2 Warning
2.1.
Battery Caution
1. Danger of explosion if battery is incorrectly replaced.
2. Replace only with the same or equivalent type recommended by the manufacturer.
3. Dispose of used batteries according to the manufacture’s Instructions.
2.2.
About Lead Free Solder (PbF: Pb free)
Note:
In the information below, Pb, the symbol for lead in the periodic table of elements, will refer to standard solder or solder that
contains lead.
We will use PbF solder when discussing the lead free solder used in our manufacturing process which is made from Tin (Sn),
Silver (Ag), and Copper (Cu).
This model, and others like it, manufactured using lead free solder will have PbF stamped on the PCB. For service and repair
work we suggest using the same type of solder.
Caution
• PbF solder has a melting point that is 50 F ~ 70 F (30 C ~ 40 C) higher than Pb solder. Please use a soldering iron with
temperature control and adjust it to 700 F ± 20 F (370 C ± 10 C).
• Exercise care while using higher temperature soldering irons.:
Do not heat the PCB for too long time in order to prevent solder splash or damage to the PCB.
• PbF solder will tend to splash if it is heated much higher than its melting point, approximately 1100 F (600 C).
• When applying PbF solder to double layered boards, please check the component side for excess which may flow onto the
opposite side (See the figure below).
Remove all of the
excess solder
Component
pin
p
Solder
(Slice View)
5
Component
KX-TGC220/KX-TGC222/KX-TGC223/KX-TGCA20
2.2.1.
Suggested PbF Solder
There are several types of PbF solder available commercially. While this product is manufactured using Tin, Silver, and Copper
(Sn+Ag+Cu), you can also use Tin and Copper (Sn+Cu), or Tin, Zinc, and Bismuth (Sn+Zn+Bi). Please check the
manufacturer's specific instructions for the melting points of their products and any precautions for using their product with other
materials.
The following lead free (PbF) solder wire sizes are recommended for service of this product: 0.3 mm, 0.6 mm and 1.0 mm.
0.3 mm X 100 g
2.3.
0.6 mm X 100 g
1.0 mm X 100 g
Discarding of P. C. Board
When discarding P. C. Board, delete all personal information such as telephone directory and caller list or scrap P. C. Board.
6
KX-TGC220/KX-TGC222/KX-TGC223/KX-TGCA20
3 Specifications
Standard:
GAP (Generic Access Profile)
Number of Channels:
120 Duplex Channels
Frequency Range:
1.88 GHz to 1.90 GHz
Duplex Procedure:
TDMA (Time Division Multiple Access)
Channel Spacing:
1,728 kHz
Bit Rate:
1,152 kbit/s
Modulation:
GFSK (Gaussian Frequency Shift Keying)
RF Transmission Power:
Approx. 10mW (average power per channel)
Voice Coding:
ADPCM 32 kbit/s
Operating conditions:
0C - 40C, 20 % - 80 % relative air humidity (dry)
Power source (AC Adaptor):
220 - 240 V AC, 50/60 Hz
Base unit: PNLV226AL0Z
Charger: PNLV233ALKZ
Power consumption:
Base unit :
Standby: Approx. 0.54 W
Maximum: Approx. 2.7 W
Charger:
Standby: Approx. 0.12 W
Maximum: Approx. 1.8 W
Dimensions:
Base unit: Approx. 107mm x 96 mm x 77 mm
Handset: Approx. 47 mm x 30 mm x 164 mm
Charger unit: Approx. 70 mm x 70 mm x 40 mm
Mass (Weight):
Base unit*2: Approx. 120 g
Handset: Approx. 130 g
Charger: Approx. 40 g
Note:
• Design and specifications are subject to change without notice.
Note for Service:
• Operation range: Up to 300 m outdoors, Up to 50 m indoors, depending on the condition.
• Analog telephone connection: Telephone Line
• Optional DECT repeater: KX-A405 (for NZ), KX-A405AL (for AL)
7
8
VBAT
RF_PART
RSTN
RESET
TXn
TXp
RXn
RXp
STM/CKM
3
KEY 1
VDD
FLASH
MEMORY
IC601
KEY C, D, E
CLK,DO
DL,CS
SPOUTP
SPOUTN
BBIC
EEPROM
MEMORY
IC611
X501
13.824 MHz
IC501
SP
XIN
SCL, SDA
WP
ANT1
VCC
XOUT
KEYS
ANS_LED
VCCA
MSG_LED
DOUBOUT
VBAT
VCCPA
VBAT_APU
VCC_IF
VCC_FE
VCC_VCO
LOUT
LIN
HOOK
DCIN 2
DCIN 1
BELL
HSMIP
HSMIN
3.0V
RECEIVE
AMP
Q171
SIDE TONE
CIRCUIT
Q161
INUSE
DETECT 2
R151,R152
3.0 V
REGULATOR
IC302
INUSE
DETECT 1
R131, R133
RLY
Q141
BELL
DETECT
Q111
D101
R371
R372
DCM
DCP
L1R
-
+
CHARGE_CONTACT
DC JACK
TEL JACK
L1T
4.1.
Operational P.C. Board
KX-TGC220/KX-TGC222/KX-TGC223/KX-TGCA20
4 Technical Descriptions
Block Diagram (Base Unit_Main)
KX-TGC220/KX-TGC222/KX-TGC223/KX-TGCA20
4.2.
4.2.1.
Circuit Operation (Base Unit)
Outline
Base Unit consists of the following ICs as shown in Block Diagram (Base Unit_Main) (P.8).
• DECT BBIC (Base Band IC): IC501
- Handling all the audio, signal and data processing needed in a DECT base unit
- Controlling the DECT specific physical layer and radio section (Burst Module Controller section)
- ADPCM code filter for speech encoding and speech decoding (DSP section)
- Echo-cancellation and Echo-suppression (DSP section)
- Any tones (tone, sidetone, ringing tone, etc.) generation (DSP section)
- DTMF receiver (DSP section)
- Clock Generation for RF Module
- ADC, DAC, timer, and power control circuitry
- PLL Oscillator
- Detector
- Compress/Expander
- First Mixer
- All interfaces (ex: QSPI FLASH MEMORY, EEPROM, LED, Analog Front End, etc.)
- Integrated 1.9GHz PA for DECT
• EEPROM: IC611
- Temporary operating parameters (for RF, etc.)
• FLASH MEMORY: IC601
- Voice Prompt (TAM) D/L Area
- ICM/OGM Recording Area
• Additionally,
- Power Supply Circuit (+3.0 V, +1.8 V output)
- Crystal Circuit (10.368 MHz)
- Charge Circuit
- Telephone Line Interface Circuit
• QSPI FLASH MEMORY IC502
- Main Program D/L Area
9
KX-TGC220/KX-TGC222/KX-TGC223/KX-TGCA20
4.3.
Block Diagram (Base Unit_RF Part)
TXp
TXn
ANT1
RXp
RXn
10
KX-TGC220/KX-TGC222/KX-TGC223/KX-TGCA20
4.4.
Circuit Operation (Base Unit)
General Description:
(BBIC, Flash Memory, EERROM) is a digital speech/signal processing system that implements all the functions of speech
compression, record and playback, and memory management required in a digital telephone answering machine.
The BBIC system is fully controlled by a host processor. The host processor provides activation and control of all that functions
as follows.
TDD & TDMA
with FHSS
Processor
ADPCM
ADPCM
Digital
Speech
Processor
RF part
Analog
Front
End
TEL
Line
Interface
&
Host CPU
Caller ID
Modem
BBIC (IC501)
Multiplexer
Digital TAM System
EEPROM IC611
4.4.1.
Keys/ LEDs/ Charge
Flash Memory IC601
BBIC (Base Band IC: IC501)
• Voice Message Recording/Play back
The BBIC system uses a proprietary speech compression technique to record and store voice message in Flash Memory.
An error correction algorithm is used to enable playback of these messages from the Flash Memory.
• DTMF Generator
When the DTMF data from the handset is received, the DTMF signal is output.
• Synthesized Voice (Pre-recorded message)
The BBIC implements synthesized Voice, utilizing the built in speech detector and a Flash Memory, which stored the vocabulary.
• Caller ID demodulation
The BBIC implements monitor and demodulate the FSK/DTMF signals that provide CID information from the Central Office.
• Digital Switching
The voice signal from telephone line is transmitted to the handset or the voice signal from the handset is transmitted to the
Telephone line, etc. They are determined by the signal path route operation of voice signal.
• Block Interface Circuit
RF part, LED, Key scan, Speaker, Telephone line.
4.4.2.
Flash Memory (IC601)
Following information data is stored.
• Voice signal
ex: Pre-recorded Greeting message, Incoming message
4.4.3.
EEPROM (IC611)
Following information data is stored.
• Settings
ex: message numbers, ID code, Flash Time, Tone/Pulse
11
KX-TGC220/KX-TGC222/KX-TGC223/KX-TGCA20
4.4.4.
Power Supply Circuit/Reset Circuit
The power supply voltage from AC adaptor is converted to VBAT (3.0V) in IC302. And +3.0V for peripherals and analog part is
insulated from VBAT by Doubler of BBIC.
Circuit Operation:
+3.0V
VBAT
IC302
5.5V
AC Adaptor
3.0V
REGULATOR
VBAT
pin 10
IC501
IC601
FLASH
RSTN(Reset)
pin 54
pin 15
BBIC
DOUBLER OUT
For peripherals
STM/CKM
VDDC (1.2V)
pin 57
pin 9
IC611
EEPROM
RF Part
Receive
Amp.
ANS LED
MSG LED
VBAT
VDDC (1.2 V)
Reset (RSTN)
(IC501_54 pin)
Startmonitor
(IC501 57pin)
(CKM/STM)
BBIC chip initialize
12
KX-TGC220/KX-TGC222/KX-TGC223/KX-TGCA20
4.4.4.1.
Charge Circuit
R371
The voltage from the AC adaptor is supplied to the charge circuits.
R372
+5.5V
D362
F301
DCM
C351
CHARGE+
D361
( )
DCP
CHARGE-
13
KX-TGC220/KX-TGC222/KX-TGC223/KX-TGCA20
4.4.5.
Telephone Line Interface
Telephone Line Interface Circuit:
Function
• Bell signal detection
• ON/OFF hook and pulse dial circuit
• Side tone circuit
Bell signal detection and OFF HOOK circuit:
In the idle mode, Q141 is open to cut the DC loop current and decrease the ring load. When ring voltage appears at the Tip (T)
and Ring (R) leads (When the telephone rings), the AC ring voltage is transferred as follows:
T  R111  C111  Q111  BBIC pin 5 [BELL]
When the CPU (BBIC) detects a ring signal, Q141 turns on, thus providing an off-hook condition (active DC current flow through
the circuit). Following signal flow is the DC current flow.
T  D101  Q141  Q161  R163  D101  P101  R
ON HOOK Circuit:
Q141 is open, Q141 is connected as to cut the DC loop current and to cut the voice signal. The unit is consequently in an onhook condition.
Pulse Dial Circuit:
Pin 6 of BBIC turns Q141 ON/OFF to make the pulse dialing.
Side Tone Circuit:
Basically this circuit prevents the TX signal from feeding back to RX signal. As for this unit, TX signal feed back from Q161 is
canceled by the canceller circuit of BBIC.
14
15
CP4V
LCD
CP3V
1.8 V
R45
Q2, Q3, Q4,
Q9, R8
CHARGE
CIRCUIT
KEY LED
LCD-BACK LIGHT
CP3V
BATTERY
TERMINAL
BATT-
GND
CHARGE(+)
CHARGE
CONTACTS
MIC
RECEIVER
32
64
77
61
63
SCL
LCD_LED0
73
SID
76
1.8 V
24
1.8 V
Q1
65
VBAT
SDA 67
RESET
CS
CD
IC7
EEPROM
SCL 66
33
CHARGE_CTRL
CP 3V
34
CHARGE_DET
18
22
17
37
21
35
LDO_CTRL
CPU
Analog
Front
End
A/D
D/A
Pin 71
Reset
IC1
BBIC
Reset
DSP
ADPCM
Codec
Filter
Speech
Decoding
Speech
Encoding
45
CP4V
CP3V
44
Charge
Pump
QSPI
Control
11, 12, 13, 14, 25, 55
57, 58, 59, 60
BMC
RF
PLL
MOD/DEMOD
Burst
Decoding
Burst
Encoding
86
87
2
1
10.368
MHz
XTAL
X1
ANT1
ANT1
QSPI
FLASH MEMORY
IC4
BATTERY
47, 48, 51, 53 QSPI-IO 0-3
52 QSPI-SCK
49 QSPI-CS
COLUMNS
KEYPAD
ON SWITCH
ROWS
46
8
7
TXn
TXp
RXp
RXn
1.8 V
4.5.
SPEAKER
KX-TGC220/KX-TGC222/KX-TGC223/KX-TGCA20
Block Diagram (Handset)
KX-TGC220/KX-TGC222/KX-TGC223/KX-TGCA20
4.6.
4.6.1.
Circuit Operation (Handset)
Outline
Handset consists of the following ICs as shown in Block Diagram (Handset) (P.15).
• DECT BBIC (Base Band IC): IC1
- All data signals (forming/analyzing ACK or CMD signal)
- All interfaces (ex: Key, Detector Circuit, Charge, DC/DC Converter, EEPROM, LCD, RF Power Amp.)
- PLL Oscillator
- Detector
- Compress/Expander
- Reception
- Integrated 1.9 GHz PA for DECT
• QSPI FLASH MEMORY: IC4
- Main Program D/L Area
• EEPROM: IC7
- Temporary operating parameters (for RF, etc.)
4.6.2.
Power Supply Circuit/Reset Circuit
Circuit Operation:
When power on the Handset, the voltage is as follows;
BATTERY(2.2 V ~ 2.6 V: BATT+)  Q1 (1.8 V), IC1-44pin (CP3V)
The Reset signal generates IC1 (71 pin) and 1.8 V.
TXON
ANT
DA801
RXON
RF_RXn
RF_RXp
4.6.3.
Charge Circuit
Circuit Operation:
When charging the handset on the Base Unit, the charge current is as follows;
Q2
 Q3  BATTERY+... Battery...
R8
BATTERY-  R45  GND  CHARGE-(Handset) CHARGE-(Base)  GND  DC-(GND)
In this way, the BBIC on Handset detects the fact that the battery is charged.
The charge current is controlled by switching Q9 of Handset.
DC+(5.5 V)  R371  R372  D362  CHARGE+(Base)  CHARGE+(Handset) 
Refer to Fig.101 in Power Supply Circuit/Reset Circuit (P.16).
4.6.4.
Battery Low/Power Down Detector
Circuit Operation:
“Battery Low” and “Power Down” are detected by BBIC which check the voltage from battery.
The detected voltage is as follows;
• Battery Low
Battery voltage: V(Batt) 2.25 V ± 50 mV
The BBIC detects this level and "
" starts flashing.
• Power Down
Battery voltage: V(Batt) 2.0 V ± 50 mV
The BBIC detects this level and power down.
4.6.5.
Speakerphone
The hands-free loudspeaker at SP+ and SP- is used to generate the ring alarm.
16
KX-TGC220/KX-TGC222/KX-TGC223/KX-TGCA20
4.7.
Signal Route
䊻㻌
ROUTE
䊻㻌
SIGNAL ROUTE
IN
HANDSET TX
MIC (+) - C13 - IC1 (17)
IC1(86)
C859 - ANT to BASE
MIC (–) - C11 - IC1 (18)
IC1(87)
---ANT. - <BASE_UNIT_RF_RX_ROUTE> - IC501(46/47 - 28) - C184 - Q161 - Q141
- D101 - P101 - T/R(TEL LINE)
HANDSET RX
T/R(TEL LINE) - P101 - D101 - Q141 - R165 - R177 - C173 - Q171 - C178
- IC501(16 - 44/45) - <BASE_UNIT_RF_TX_ROUTE> - ANT. --IC1 (21) - RECEIVER (+)
from BASE UNIT ANT 1
IC1 (1)
IC1 (2)
IC1 (22) - RECEIVER (–)
HANDSET
SP-Phone TX
MIC (+) - C13 - IC1 (17)
MIC (–) - C11 - IC1 (18)
IC1(86)
IC1(87)
OUT
C859 - ANT to BASE
---ANT. - <BASE_UNIT_RF_RX_ROUTE> - IC501(46/47 - 28) - C184 - Q161 - Q141
- D101 - P101 -T/R(TEL LINE)
HANDSET
SP-Phone RX
T/R(TEL LINE) - P101 - D101 - Q141 - R165 - R177- C173 - Q171 - C178 -R178
- IC501(16-44/45) - <BASE_UNIT_RF_TX_ROUTE> - ANT. --from BASE UNIT ANT –– IC1 (1) ––– IC1 (35) - SP (–)
– IC1 (2) – – IC1 (37) - SP (+)
GREETING
RECORDING
MIC (+) - C13 - IC1 (17)
MIC (–) - C11 - IC1 (18)
IC1(86)
IC1(87)
C859 - ANT to BASE
---ANT. - <BASE_UNIT_RF_RX_ROUTE> - IC501(46/47- 73/74) - IC601
GREETING PLAY
TO TEL LINE
IC601 - IC501(73/74 - 28) - C184 - Q161 - Q141 - D101 - P101
- T/R(TEL LINE)
ICM RECORDING
T/R(TEL LINE) - P101 - D101 - Q141 - R165 - R177- C173 - Q171 - C178 - R178
- IC501(16 - 73/74) - IC601
ICM PLAY TO
SPEAKER
IC601 - IC501(73/74 - 29/31) - SPEAKER
DTMF SIGNAL
TO TEL LINE
IC501(28) - C184 - Q161 - Q141 - D101 - P101 - T/R(TEL LINE)
CALLER ID
T/R(TEL LINE) - P101 - C121/C122 - R121/R122 - IC501(24/25)
BELL DETECTION
T/R(TEL LINE) - P101 - R111/R112 - C111/C112 - Q111 - IC501(5)
Note:
: inside of Handset
17
KX-TGC220/KX-TGC222/KX-TGC223/KX-TGCA20
RF part signal route
䊻㻌
SIGNAL ROUTE
IN
HANDSET RF
[ TX_ROUTE ]
IC1(86/87) - C859 - ANT
HANDSET RF
[ RX_ROUTE ]
ANT - IC(1/2)
BASE UNIT RF
[ TX_ROUTE ]
IC501(44/45) - C819 - C872 - ANT
BASE UNIT RF
[ RX_ROUTE ]
ANT - C872 - C895 - IC501(46/47)
ROUTE
Note:
: inside of Handset
18
䊻㻌
OUT
KX-TGC220/KX-TGC222/KX-TGC223/KX-TGCA20
5 Location of Controls and Components
Refer to the Operating Instructions.
Note:
You can download and refer to the Operating Instructions (Instruction book) on TSN Server.
6 Installation Instructions
Refer to the Operating Instructions.
Note:
You can download and refer to the Operating Instructions (Instruction book) on TSN Server.
7 Operating Instructions
Refer to the Operating Instructions.
Note:
You can download and refer to the Operating Instructions (Instruction book) on TSN Server.
For Service Hint
Items
Battery
Contents
You could use other rechargeable batteries sold in a market, but the unit is not guaranteed to work
properly.
The battery strength may not be indicated correctly if the battery is disconnected and connected again,
even after it is fully charged. In that case, by recharging the battery as mentioned in the Operating
Instructions, you will get a correct indication of the battery strength.
Recall
PIN Code
Earth Recall feature is not supported in this model.
L Change the PIN using the following method.
1
(right soft key) # 132
2
7
3 Enter the new 4-digit base unit PIN. i{OK}
4 { ^ }: “ Yes” i{OK}i {}
c}
^
7.1.
19
KX-TGC220/KX-TGC222/KX-TGC223/KX-TGCA20
8 Test Mode
8.1.
Engineering Mode
8.1.1.
Base Unit
Important:
Make sure the address on LCD is correct when entering new data. Otherwise, you may ruin the unit.
Soft keys
{
} (Off/Power)
Navigator key/
(Volume) key/
(Phonebook)/
q (Caller list) key/
R (Redial) key/
{
} {TALK:Talk }
Dial keypad
{R /ECO}
This pictured model is KX-TGC220
R: Recall/Flash
ECO: Eco mode shortcut key
H/S LCD
H/S key operation
1). Press {
}
2). Select "Initial Setup" using {^}or{V}
then press {OK } .
3). Select "Line Setup" using {^}or{V}
then press {OK } or {>}.
4). Enter "7", "2", "6", "2", "7", "6", "6", "4".
Note: 7262 7664 = PANA SONI
(see letters printed on dial keys)
Service Mode
5). Select "Write EEP" using {^} or{V}
then press {OK } or {>}.
Read EEP
Write EEP
OK
Set Addr.:
Default Data
6). Enter " ", " ", " ", " " (Address). (*1)
C
7). Enter " ", " " (New Data). (*1)
OK
Set Addr.:
New Data
8). Press {OK } , a long confirmation beep
will be heard.
C
____
9). Press
(off) to return to standby mode.
After that, turn the base unit power off and then power on.
20
OK
Set Addr.:
__
KX-TGC220/KX-TGC222/KX-TGC223/KX-TGCA20
Frequently Used Items (Base Unit)
ex.)
Items
C-ID (FSK) sensitivity
Address
08 6A/08 69
Default Data
00/28
C-ID (DTMF) sensitivity
08 86/08 85
08/00
Frequency
ID
00 08 / 00 07
00 02 ~ 00 06
01/00
Given value
Bell length
03 C6
32 (5 sec) (*2)
New Data
00/1C
00/14
(3 dB up)
(6 dB up)
0B/4C
0F/F6
(3 dB up)
(6 dB up)
1E (3 sec)
14 (2 sec)
Remarks
When hex changes from “00/28” to “00/1C” or
“00/14”, gain increases by 3 dB or 6 dB.
When hex changes from “00/01” to “0B/4C” or
“0F/F6”, gain increases by 3 dB or 6 dB.
Use these items in a READ-ONLY mode to
confirm the contents. Careless rewriting may
cause serious damage to the computer system.
This is time until bell stops ringing.
(Unit: 100 msec)
Note:
(*1) When you enter the address or New Data, please refer to the table below.
Desired Number (hex)
0
1
.
.
.
9
Input Keys
0
1
.
.
.
9
Desired Number (hex)
A
B
C
D
E
F
(*2)
Bell length
32 (hex) = 50 (dec)  50  100 msec = 5000 msec (5 sec)
21
Input Keys
[Flash] + 0
[Flash] + 1
[Flash] + 2
[Flash] + 3
[Flash] + 4
[Flash] + 5
KX-TGC220/KX-TGC222/KX-TGC223/KX-TGCA20
8.1.2.
Handset
Important:
Make sure the address on LCD is correct when entering new data. Otherwise, you may ruin the unit.
Soft keys
{
} (Off/Power)
Navigator key/
(Volume) key/
(Phonebook)/
q (Caller list) key/
R (Redial) key/
{
} {TALK:Talk }
Dial keypad
{R /ECO}
R: Recall/Flash
ECO: Eco mode shortcut key
H/S LCD
H/S key operation
1). Press {
}
2). Select "Initial Setup" using {^}or{V}
then press {OK } .
3). Enter "7", "2", "6", "2", "7", "6", "6", "4".
Note: 7262 7664 = PANA SONI
(see letters printed on dial keys)
Service Mode
4). Select "Write EEP" using {^} or{V}
then press {OK } or {>}.
Read EEP
Write EEP
OK
Set Addr.:
Default Data
6). Enter " ", " ", " ", " " (Address). (*1)
OK
C
7). Enter " ", " " (New Data). (*1)
Set Addr.:
New Data
8). Press {OK } , a long confirmation beep
will be heard.
OK
C
Set Addr.:
____
9). Press
(off) to return to standby mode.
After that, turn the base unit power off and then power on.
22
__
KX-TGC220/KX-TGC222/KX-TGC223/KX-TGCA20
Frequently Used Items (Handset)
ex.)
Items
Address
Default Data
New Data
Battery Low
Frequency
ID
00 09
00 07 / 00 08
00 02 ~ 00 06
70
70/02
Given value
-
Possible Adjusted
Value MAX (hex)
-
Possible Adjusted
Value MIN (hex)
-
Remarks
(*2)
Note:
(*1) When you enter the address or New Data, please refer to the table below.
Desired Number (hex.)
0
1
.
.
.
9
Input Keys
0
1
.
.
.
9
Desired Number (hex.)
A
B
C
D
E
F
Input Keys
[R] + 0
[R] + 1
[R] + 2
[R] + 3
[R] + 4
[R] + 5
(*2) When adding “01” (hex) to default value, sending level increases by 0.25 dB.
ex.)
Item
Sending level
Default Data
E7
-3.5 dBm
-7.0 dBm
New Data
EB
E3
-2.5 dBm
-4.5 dBm
-6.0 dBm
-8.0 dBm
Destination
for NZ
for AL
(*3) When reducing “01” (hex) from default value, receiving level increases by 0.25 dB.
ex.)
Item
Receiving level
Default Data
E7
-22.0 dBm
-23.0 dBm
New Data
EB
E3
-23.0 dBm
-21.0 dBm
-24.0 dBm
-22.0 dBm
Destination
for NZ
for AL
(*4) Use these items in a READ-ONLY mode to confirm the contents. Careless rewriting may cause serious damage to the
handset.
23
KX-TGC220/KX-TGC222/KX-TGC223/KX-TGCA20
8.2.
8.2.1.
EEPROM LAYOUT (Handset)
Scope
The purpose of this section is to describe the layout of the EEPROM (IC3) for the KX-TGCA20 Handset.
The EEPROM contains hardware, software, and user specific parameters. Some parameters are set during production of the
handset, some are set by the user when configuring the handset, and some during normal use of the phone.
8.2.2.
Introduction
The handset uses a 128k bit serial EEPROM (IC3) for storing volatile parameters. All parameters are set up before the handset
the factory. Some of these are vital for the operation of the hardware so a set of default parameters is programmed before the
actual hardware fine-tuning can be initiated. This document lists all default settings with a short description.
This document lists all default parameters with a short description.
Initial Type
F
0
1
2
3
Description
The data initialized by only F command
The data initialized by F and 0 command
The data initialized by F, 0 and 1 command
The data initialized by F, 0, 1 and 2 command
The data initialized by all command (F, 0, 1, 2, 3)
Country Setting
Description
x
Default - no specific country setting, so revert to default value.
8.2.3.
EEPROM contents
MMI Setting:
Address Initial
Name
Type
04 B0
3 EEP_Language
Description
Default value
Selected Language for LCD
GERMAN:0 ENGLISH:1 SPANISH:2 NORWEGIAN:3
FRENCH:4 ITALIAN:5 DENISH:6 DUTCH:7 SWEDISH:8
FINNISH:9
GREEK:10 TURKISH:11 HUNGARIAN:12 PORTUGUESE:13
RUSSIAN:14
POLISH:15 SLOVAKIAN:16 CZECH:17 CROATIAN:18
CATALAN:19
UKRINIAN:20 SPANISHMEX:21 SLOVENIAN:22
ESTNIAN:23 LITHUANIAN:24
LATVIAN:25 ROMANIAN:26 BULGARIAN:27
MACEDONIAN:29
ALBANIAN:30 PORTUGUESEMEX:31 ENGLISH(USA):32
HEBREW:33
ARABIC:34 PERSIA:35 HANTAI:36 HANTAI(HK):37
RUSSIAN(BX):38
BELARUS:39 KAZAKHSTAN:40 UZBEKISTAN:41
TAJIKISTAN:42
TURKMENISTAN:43 AZERBAIJAN:44 ARMENIA:45
MOLDOV:46
CANADAENGLISH:48 USSPANISH:49 USFRENCH:50
PORTUGUESE:51 ENGLISH(AZ):52
0x01
Description
Default value
Country
Setting
x
MMI1 Setting:
Address Initial
Name
Type
00 12
F EEP_LcdContrast
LCD contrast
0x29
24
Country
Setting
x
KX-TGC220/KX-TGC222/KX-TGC223/KX-TGCA20
8.3.
How to Clear User Setting
Units are reset to the Factory settings by this operation (Erase recorded Voice messages, stored Phone numbers, Caller list and
etc.)
Note:
• Some menus are not reset. Refer to Operating Instructions (P.19).
• The reset menus differ depending on the following operations.
• This operation should not be performed for a usual repair.
8.3.1.
Resetting both base unit and handset
Both the base unit and the registered handset which you did the following steps
will not be reset.
to
are reset. Other registered handsets
w
Base unit
Handset
1 Connect the AC adaptor to the base unit and install the charged batteries into the handset.
2 Confirm the handset is registered to the base unit (
lights).
lights), register it. (*1)
If the handset is not registered to the base unit (
3 Lift the handset and press {ih} to put the handset in standby mode.
4 Press 1 , 5 , 9 and
key of the handset simultaneously until a confirmation tone is heard.
5 Disconnect the AC adaptor, then remove the battery.
Note:
(*1) Refer to Registering a Handset to a Base Unit in the Operating Instructions.
8.3.2.
Resetting only handset
The only handset is reset by doing the following steps
to
.
Handset
1 Install the charged batteries into the handset.
2 Lift the handset and press {ih} to put the handset in standby mode.
3 Press 3 , 5 , 7 and # key of the handset simultaneously until a confirmation tone is heard. (*2)
4 Remove the battery.
Note: (*2)
• The handset registration to the base unit is cancelled.
• If the handset needs to be registered to the base unit, refer to Registering a Handset to a Base Unit in the Operating
Instructions.
• If users do not bring the base unit with them, the registration procedure has to be done by users themselves.
25
KX-TGC220/KX-TGC222/KX-TGC223/KX-TGCA20
9 Troubleshooting Guide
9.1.
Troubleshooting Flowchart
FLOW CHART
Not working
Power ON Base Unit
Check Power
OK
Playback Pre-Message
Not playback
Check Playback
OK
Not record
Record
Check Record
OK
Link
No link
Battery Charge
OK
No charge
Check Battery Charge
OK
Check Link
NG
Range
Check the RF part
OK
Handset Voice Transmission
No voice
Check Handset Transmission
OK
Handset Voice Reception
No voice
Check Handset Reception
OK
Caller ID Reception
Caller ID Error
Check Caller ID
OK
TAM Operation *1
Not working
*1 KX-TGC220 only
Cross Reference:
Check Power (P.27)
Check Playback (P.29)
Check Record (P.28)
Check Battery Charge (P.29)
Check Link (P.30)
Check the RF part (P.32)
Check Handset Transmission (P.37)
Check Handset Reception (P.37)
Check Caller ID (P.37)
26
Check TAM Operation *1
KX-TGC220/KX-TGC222/KX-TGC223/KX-TGCA20
9.1.1.
Check Power
9.1.1.1.
Base Unit
Is the AC Adaptor inserted into AC outlet? (*1)
Is output voltage of AC adaptor 5.5 V?
NO
Check AC Adaptor.
YES
Check VDDC (1.2 V): Test Point [VDDC]
NO
Check Power Supply Circuit.
OK
RSTN: Reset = "High"?
NO
Check Reset Circuit.
YES
Check Xtal CLK = 13.824 MHz?
NO
Check X501.
YES
Check BBIC.
Cross Reference:
Power Supply Circuit/Reset Circuit (P.12)
Note:
BBIC is IC501.
(*1) Refer to Specifications (P.7) for part number and supply
voltage of AC adaptor.
(*2) Refer to Base Unit (Main) (P.73).
9.1.1.2.
Handset
Is the battery inserted BATT+ and BATT-?
YES
NO
Is the voltage of BATT+ 2.3 V more?
Check F1 is not open.
YES
YES
Check the battery and around BATT+ and
BATT- are not shorted.
NO
Check Power Supply Circuit/Reset Circuit .
Is the voltage of +1.8V about 1.8 V?
YES
Is the voltage of CP3V about 3.0 V?
NO
YES
Is the voltage of CP4V about 4.0V ?
(When LED is On)
NO
Check BBIC (IC1).
YES
NO
Does BBIC (IC1: 7) oscillate at 10.368 MHz?
YES
Check BBIC (IC1).
Cross Reference:
Power Supply Circuit/Reset Circuit (P.12)
27
Check X1.
KX-TGC220/KX-TGC222/KX-TGC223/KX-TGCA20
9.1.2.
9.1.2.1.
Check Record
Base Unit
A) Not record Incoming Message
NO
Check Bell signal.
OK
Does the unit catch line?
NO
YES
Check Line In: Pin 16 of BBIC.
NO
Check Telephone Line Interface
[Bell].
Check Telephone Line Interface
[OFF HOOK].
Check ICM Recording in Signal Route.
OK
Check Auto Disconnect Circuit.
OK
Check Parallel Connection Detection
Circuit.
OK
Check BBIC and Flash Memory.
Note:
Flash Memory is IC601.
BBIC is IC501.
Cross Reference:
Signal Route (P.17)
Telephone Line Interface (P.14)
28
KX-TGC220/KX-TGC222/KX-TGC223/KX-TGCA20
9.1.3.
Check Playback
9.1.3.1.
Base Unit
Check VDDC (1.2 V): Test Point [VDDC]
NO
Check Power Supply Circuit.
OK
Check output of BBIC (Pin 29, 31).
NO
Check BBIC and Flash Memory.
OK
Check Speaker and its surroundings.
Cross Reference:
Power Supply Circuit/Reset Circuit (P.12)
Note:
Flash Memory is IC601.
BBIC is IC1.
(*1) Refer to Base Unit (Main) (P.73).
9.1.4.
Check Battery Charge
9.1.4.1.
Base Unit
Plug in the AC Power source.
Charge Handset on Base Unit.
Is the voltage of two charge contacts about
3 V or more?
NO
Check Charge Circuit of Base Unit.
OK
YES
Check Handset.
Check Charge Contacts at
Base Unit from mechanical point of view.
Cross Reference:
Charge Circuit (P.13)
9.1.4.2.
Handset
NO
Is Check Power OK?
Check Power of Handset.
YES
NO
Check Charge Circuit.
Is BBIC (IC1: 34) high at charge state?
Cross Reference:
Check Power (P.27)
Charge Circuit (P.16)
9.1.4.3.
Charger Unit
Plug in the AC Power source.
Charge Handset on Charger Unit.
Is the voltage of two charge contacts about
3 V or more?
NO
Check Charge Circuit of Charger Unit.
OK
YES
Check Handset.
Check Charge Contacts at Charger Unit
from mechanical point of view.
Cross Reference:
Charge Circuit (P.16)
29
KX-TGC220/KX-TGC222/KX-TGC223/KX-TGCA20
9.1.5.
9.1.5.1.
Check Link
Base Unit
Does Base Unit make link with normal working
Handset?
YES
Base Unit is OK. Check Handset.
NO
Is the voltage of VBAT about 3.0 V?
NO
Check around Power Supply Circuit.
YES
Is the voltage of VDDC about 1.2 V?
NO
YES
Is the voltage of +3.0V about 3.0 V?
NO
YES
Does the RF clock (CLK) oscillate at 13.824 MHz in
Base Unit Test Mode?
Adjust +3.0V voltage to 3.0 V. *1
OK
NO
Check around X501 and RF module and adjust
clock frequency.*2
YES
Check the RF part
Cross Reference:
Power Supply Circuit/Reset Circuit (P.12)
Check the RF part (P.32)
Note:
*1 How to adjust +3.0V:
Execute the command "VDA"
Refer to Things to Do after Replacing IC or X'tal (P.55) for Base Unit.
*2 How to adjust the frequency of X501:
To see the frequency, execute the command “SFR“, then check the TP_CKM (IC501-57pin).
To adjust frequency, send command “SFR
“ until the frequency counter becomes13.824 MHZ±55HZ.
30
KX-TGC220/KX-TGC222/KX-TGC223/KX-TGCA20
9.1.5.2.
Handset
Does Handset make link with Base Unit?
(Correct working unit)
YES
Handset is OK. Check Base Unit.
NO
Is the voltage of "1.8V" about 1.8 V?
NO
Adjust 1.8V voltage to 1.8 V.
OK
YES
NO
Check around Power Supply Circuit/Reset Circuit .
Is the voltage of CP3V about 3.0 V?
NO
YES
Is the voltage of CP4V about 4.0V?
(When LED is ON)
NO
Check BBIC (IC1)
YES
Is the voltage of CP2.8V about 2.8 V?
NO
Check D3
YES
Does the RF clock (CLK) oscillate: 10.368 MHz
in Handset Test Mode?
NO
Check around X1 and adjust clock frequency.
YES
Check the RF part.
Cross Reference:
Power Supply Circuit/Reset Circuit (P.12)
Check the RF part (P.32)
Note:
(*1) Refer to Troubleshooting by Handset (P.29)
To see the frequency, execute the command “SFR“, then check the TP_CKM (IC1-55pin).
To adjust frequency, send command “SFR
“ until the frequency counter becomes10.368 MHz±55HZ.
Refer to Things to Do after Replacing IC or X'tal (P.56) for Handset.
31
KX-TGC220/KX-TGC222/KX-TGC223/KX-TGCA20
9.1.6.
Check the RF part
9.1.6.1.
Finding out the Defective part
1. Prepare Regular HS(*1) and Regular BU(*2).
2. a. Re-register regular HS (Normal mode) to base unit (to be checked).
If this operation fails in some ways, the base unit is defective.
b. Re-register handset (to be checked) to regular BU (Normal mode).
If this operation fails in some ways, the handset is defective.
After All the Checkings or Repairing
1. Re-register the checked handset to the checked base unit, and Regular HS to Regular BU.
START
No
Base unit is defective
Registration of
handset to
Regular BU
Registration of
Regular HS to
base unit
Yes
Yes
(other checkings)
Registration of Regular HS to Regular BU
Registration of handset to base unit
(checked ones)
Note:
(*1) HS: Handset
(*2) BU: Base Unit
32
No
Handset is defective
KX-TGC220/KX-TGC222/KX-TGC223/KX-TGCA20
9.1.6.2.
RF Check Flowchart
Each item (1 ~ 6) of RF Check Flowchart corresponds to Check Table for RF part (P.34).
Please refer to the each item.
Start
1
2
Link
confirmation
Normal
NG
Control
signal
confirmation
OK
NG
Check BBIC interface parts.
(RF Block <->BBIC on BU/HS P.C.B)
OK
3
X'tal
Frequency
confirmation
NG
Adjust X'tal Frequency. (*1)
OK
4
NG
TX confirmation
Check TX Block.
OK
5
NG
RX confirmation
Check RX Block.
OK
6
Range
confirmation
Normal
NG
TEST RANGE Check.
OK
GOOD
Note:
(*1) Refer to Check Link (P.30).
33
KX-TGC220/KX-TGC222/KX-TGC223/KX-TGCA20
9.1.6.3.
Check Table for RF part
No.
Item
1 Link Confirmation Normal
HS, BU Mode [Normal Mode]
2
X'tal Frequency confirmation
3
HS, BU Mode: [Adjustment]
TX confirmation
Regular HS (BU) Mode:
[Test RX Mode]
4
BU (HS) Mode:
[Test TX_Burst Mode]
RX confirmation
Regular HS (BU) Mode:
[Test TX_Burst Mode]
5
BU (HS) Mode:
[Test RX Mode]
Range Confirmation Normal
HS, BU Mode: [Normal Mode]
BU (Base Unit) Check
1. Register Regular HS to BU (to be
checked).
2. Press [Talk] key of the Regular HS to
establish link.
Check X'tal Frequency.
(13.824000 MHz ±100 Hz)
HS (Handset) Check
1. Register HS (to be checked) to Regular
BU.
2. Press [Talk] key of the HS to establish link.
Check X'tal Frequency.
(10.368000 MHz ±100 Hz)
1. Place Regular HS 15 cm away from a
checked BU.
2. Confirm "TXDATA" waveform of BU (*1)
and “RXDATA“ waveform of Regular HS by
Digital Oscilloscope.
1. Place Regular BU 15 cm away from a
checked HS.
2. Confirm "TXDATA" waveform of HS (*2)
and "RXDATA" waveform of Regular BU by
Digital Oscilloscope.
1. Place Regular HS 15 cm away from a
checked BU.
2. Confirm "RXDATA" waveform of BU (*1)
and “TXDATA“ waveform of Regular HS by
Digital Oscilloscope.
1. Place Regular BU 15 cm away from a
checked HS.
2. Confirm "RXDATA" waveform of HS (*2)
and "TXDATA" waveform of Regular BU by
Digital Oscilloscope.
1. Register Regular HS to BU (to be
checked).
2. Press [Talk] key of the Regular HS to
establish link.
3. Compare the range of the BU (being
checked) with that of the Regular BU.
1. Register HS (to be checked) to Regular
BU.
2. Press [Talk] key of the HS to establish link.
3. Compare the range of the HS (being
checked) with that of the Regular HS.
Note:
(*1) Adjustment Standard (Base Unit) (P.51)
(*2) Adjustment Standard (Handset) (P.54)
34
KX-TGC220/KX-TGC222/KX-TGC223/KX-TGCA20
9.1.6.4.
TEST RANGE Check
Circuit block which range is defective can be found by the following check.
Item
Range Confirmation TX TEST
(TX Power check)
HS, BU setting
Checked unit: Low TX power (*1)
Regular unit: High TX power (*1)
Range Confirmation RX TEST
(RX sensitivity check)
HS, BU setting
Checked unit: High TX power (*1)
Regular unit: Low TX power (*1)
BU (Base Unit) Check
1. Register Regular HS to BU (to be checked).
HS (Handset) Check
1. Register HS (to be checked) to Regular BU.
2. Set TX Power of the BU and the Regular HS
according to CHART1.
2. Set TX Power of the HS and the Regular BU
according to CHART1.
3. At distance of about 20m between HS and BU,
Link OK = TX Power of the BU is OK.
No Link = TX Power of the BU is NG.
1. Register Regular HS to BU (to be checked).
3. At distance of about 20m between HS and BU,
Link OK = TX Power of the HS is OK.
No Link = TX Power of the HS is NG.
1. Register HS (to be checked) to Regular BU.
2. Set TX Power of the BU and the Regular HS
according to CHART1.
2. Set TX Power of the Checking HS and the Regular BU according to CHART1.
3. At distance of about 20m between HS and BU,
Link OK= RX Sensitivity of the BU is OK.
No Link = RX Sensitivity of the BU is NG.
3. At distance of about 20m between HS and BU,
Link OK= RX Sensitivity of the HS is OK.
No Link = RX Sensitivity of the HS is NG
CHART1: Setting of TX Power and RX Sensitivity in Range Confirmation TX TEST, RX TEST
BU (Base Unit) TX Power Check
BU (Base Unit) RX Sensitivity Check
BU (to be checked)
TX Power
Low
High
Regular_HS
TX Power
High
Low
HS (Handset) TX Power Check
HS (Handset) RX Sensitivity Check
HS (to be checked)
TX Power
Low
High
Regular_BU
TX Power
High
Low
Note:
(*1) Refer to Commands (P.50).
35
KX-TGC220/KX-TGC222/KX-TGC223/KX-TGCA20
9.1.7.
Registering a Handset to the Base Unit
1
Handset:
{MENU} # 1 3 0
2
Base unit:
Press and hold {LOCATOR} for about 5 seconds.
L If all registered handsets start ringing, press {LOCATOR}
repeat this step. (KX-TGC222/KX-TGC223)
L The next step must be completed within 90 seconds.
3
9.1.8.
Handset:
Press {OK}, then wait until a long beep sounds.
Deregistering a Handset
1
{MENU} # 1 3 1
L All handsets registered to the base unit are displayed.
^
2 { V } : Select the handset you want to cancel. i {OK}
3 {^
V } : “ Yes ” i {OK} i {OFF}
36
again to stop, then
KX-TGC220/KX-TGC222/KX-TGC223/KX-TGCA20
9.1.9.
Check Handset Transmission
Check MIC of handset.
Check handset Tx in Signal Route.
Cross Reference:
Signal Route (P.17)
9.1.10. Check Handset Reception
Check speaker of handset.
Check handset Rx in Signal Route.
Cross Reference:
Signal Route (P.17)
Note:
When checking the RF part, Refer to Check the RF part
(P.32).
9.1.11.
Check Caller ID
BASE UNIT
NO
Did bell ring?
(Message indicator
blinks)
Check bell signal detection in
Telephone Line Interface.
YES
Check Calling Line Identification (Caller ID)/
Call Waiting Caller ID.
Cross Reference:
Telephone Line Interface (P.14)
Note:
• Make sure the format of the Caller ID service of the
Telephone company that the customer subscribes to.
• It is also recommended to confirm that the customer is really
a subscriber of the service.
37
KX-TGC220/KX-TGC222/KX-TGC223/KX-TGCA20
9.1.12. Bell Reception
9.1.12.1. Base Unit
When bell signal is coming, is there bell sound
signal at BBIC (IC501:CIDINp, CIDINn)?
NO
Check around C103, C104, C105, C106, C107,
C109, C110, C111, C113, R101, R102, R103, R104,
R109, R110, R111, R112, P101
YES
NO
Check around IC501 (VDD_PA), C506, C472, C473,
C477, C478, R477, R478
When bell signal is coming, is there bell sound
signal at IC501 (SPP, SPN)?*1
*1 TGC220 only
9.1.12.2. Handset
When bell signal coming, is there bell sound signal
at BBIC (IC1: 35, 37)?
NO
Check BBIC (IC1), C78, C79, R77, R76.
YES
When bell signal coming, is there bell sound signal
at SP+, SP- ?
NO
Check around SP+, SP- .
YES
NO
Does the bell sound from SPEAKER?
Check cable of SPEAKER and resistance value
of SPEAKER.
Cross Reference:
Telephone Line Interface (P.14)
Check Link (P.30)
How to Check the Handset Speaker or Receiver (P.58)
9.1.13. Check TAM Operation
Is there a TAM icon on the Handset display?
NO
Turn on the Answering System.
YES
Is the voltage of VDD3 of Base Unit about 3.0 V
and VDD1 about 1.8 V, VDD4 about 3.0 V,
VDD5 about 3.0 V?
NO
Check Power Supply Circuit.
YES
Check IC601 and BBIC (IC501) of Base Unit. (*1)
Note:
(*1) When replacing FLASH MEMORY (IC601), TAM data need to be written to it. Refer to Base Unit of Things to Do after
Replacing IC or X'tal (P.55)
38
KX-TGC220/KX-TGC222/KX-TGC223/KX-TGCA20
9.2.
Troubleshooting by Symptom (Base Unit and Charger Unit)
If your unit has below symptoms, follow the instructions in remedy column. Remedies depend on whether you have DECT tester
(*1) or not.
Remedy (*2)
Symptom
You don’t have DECT Tester.
You cannot dial.
You cannot hear the caller’s voice.
You cannot use the handset a little away from base unit even if the
handset is within range of the base unit.
The acoustic transmit level is high or low.
The acoustic reception level is high or low.
Base unit and handset do not link to each other.
The unit cannot charge.
TAM does not work.
Check item (A) - (I).
Check item (A) - (G), (O).
Check item (O).
Check item (O).
Check item (A) - (I).
Check item (P).
Check item (Q).
You have DECT Tester.
(Model Number: CMD60)
Check item (A) - (I), (J) - (N).
Check item (A) - (G), (J) - (N), (O).
Check item (J) - (N).
Check item (O).
Check item (O).
Check item (A) - (N).
Check item (P).
Check item (Q).
Note:
(*1) A general repair is possible even if you don’t have the DECT tester because it is for confirming the levels, such as Acoustic
level in detail.
(*2) Refer to Check Point (Base Unit) (P.39)
9.2.1.
Check Point (Base Unit)
Please follow the items below when BBIC or EEPROM or FLASH is replaced.
Note:
After the measuring, suck up the solder of TP.
*: The Setting Method of JIG (P.49) is required beforehand.
The connections of simulator equipment are as shown in Adjustment Standard (Base Unit) (P.51).
Items
(A)
3.0 V Supply
Confirmation
(B)
1.8 V Supply
Confirmation
(C) Charge
Pump
3.0V
Supply Confirmation
(D) Charge
Pump
3.0V
Supply Confirmation
(E)*
BBIC Confirmation
Check
Point
VDD3
Procedure
1.
VDD1
1.
2.
3.
VDD5
1.
VDD4
1.
-
Check or
Replace Parts
Confirm that the voltage between test point VDD3 and GND is 3.0 V ± 0.2 V.
IC302, R321,
R322, C341,
C342 , R905,
D905
Confirm that the voltage between test point VDD1 and GND is 1.8 V ± 0.02 V. Q301, IC501,
R311, C311,
Execute the command “VDD”, then check the current value.
Adjust the 1.8V voltage of VDD1 executing command “VDD XX“(XX is the C516, C517
value).
Confirm that the voltage between test point VDD5 and GND is 3.0 V -0.1/+0.3 IC501, C512
V.
Confirm that the voltage between test point VDD4 and GND is 3.0 V ± 0.2 V.
IC501, C509
1. BBIC Confirmation (Execute the command “getchk”).
2. Confirm the returned checksum value.
Connection of checksum value and program number is shown below.
ex.)
(F)* EEPROM Confirmation
-
(G)* BBIC Clock Adjustment
CKM
(H)* Hookswitch Check with
DC Characteristics
-
checksum value
9CF3
IC501, X501
program number
DE91EN
IC501, RA611,
1. EEP-ROM Confirmation (Execute the command "sendchar EPV").
2. Confirm the returned Value. (Value for reference is written at "EEPROM C/ IC611, C611
SUM” in Software_Version_Table.xls).
1. Confirm that the voltage between testpoint VDD4 and GND is less than 1.0 V. IC501, X501,
C502
2. Input Command “ sendchar sfr”, then you can confirm the current value.
3. Check X’tal Frequency. (10.368 MHz ± 100 Hz).
4. If the frequency is not 10.368 MHz ± 100 Hz, adjust the frequency of CKM
executing the command “sendchar sfr xx xx (where xx is the value)” so that
the reading of the frequency counter is 10.368000 MHz ± 5 Hz.
P101, Q141,
1. Connect Telephone Socket to Tel-simulator which is connected with 600 .
2. Set line voltage to 48 V and line current to 40mA at off-hook condition of R141, R142,
Q142, R144,
normal telephone.
R145, D101,
3. Execute the command “hookoff”
R160, R162,
4. Confirm that the line current is 40 mA ± 5 mA.
R169, R170,
5. Execute the command “hookon”.
D141, Q161,
6. Confirm that the line current is less than + 0.8 mA.
R151, IC501
39
KX-TGC220/KX-TGC222/KX-TGC223/KX-TGCA20
Items
(I)
DTMF Generator Check
Check
Point
-
(J)*
Transmitted Power
Confirmation
ANTI_TP
(K)* Modulation Check and
Adjustment
ANTI_TP
(L)* Frequency Offset Check
ANTI_TP
ANTI_TP
(M)*
Sensitivity Receiver
Confirmation
(N)*
(O)
Power RAMP
Confirmation
Audio Check
-
(P)
Charging Check
-
(Q)
TAM Operation
Confirmation
-
-
Procedure
1. Connect Telephone Socket to DTMF tester. (Load=600 )
2. Link Handset and push dial key.
3. Confirm DTMF character.
4. Confirm that the high Group is -8.0 ± 2 dBm (for NZ and AL)
5. Confirm that the low Group is-10 ± 2 dBm (for NZ and AL)
Remove the Antenna before starting step from 1 to 7.
1. Configure the DECT tester (CMD60) as follows;
<Setting>
• Test mode: FP
• Traffic Carrier: 5
• Traffic Slot: 4
• Mode: Loopback
• PMID: 00000
• RF LEVEL = -70 dBm.
2. Execute the command ”sendchar TST”.
3. Execute the command “sendchar dmv 2 2”.
4. Check that “Signalling Status” has been set to “Locked”, then press “ACCEPT
RFPI”.
5. Initiate connection from Dect tester (“set up connect”)
6. Execute the command “ANT1”.
7. Confirm that the NTP value at ANT is 18.5 dBm ~ 25.0 dBm.
Follow steps 1 to 6 of (J).
7.Confirm that the B-Field Modulation is -350 ± 50/+350 ± 50 kHz/div using data
type Fig31.
Follow steps 1 to 6 of (J).
7.Confirm that the frequency offset is < ± 20 kHz.
Follow steps 1 to 6 of (J).
7.Set DECT tester power to -88 dBm.
8.Confirm that the BER is < 1000 ppm.
Follow steps 1 to 6 of (J).
7.Confirm that Power RAMP is matching.
1. Link with Handset which is connected to Line Simulator.
2. Set line voltage to 48 V and line current to 50 mA.
3. Input -45 dBm (600 )/1 kHz to MIC of Handset. Measure the Level at Line I/F
and distortion level.
4. Confirm that the level is -3.5 ± 5dBm (for NZ) or -7.0 ± 5dBm (for AL) and that
the distortion level is <5% at TEL Line (600  Load).
5. Input -20 dBm (600 )/1kHz to Line I/F. Measure the Level at Receiver of
Handset and distortion level (Receive volume set to second position from
minimum).
6. Confirm that the level is -22.0 ± 4 dBm (for NZ) or -24.0 ± 4dBm (for AL) and
that the distortion level is <5 % at Receiver (34  Load).
1. Connect Charge Contact 12 /2 W resistor between charge+ and charge-.
2. Measure and confirm voltage across the resistor is 3.9 V ± 0.4 V.
1. TAM Confirmation (Execute the command "sendchar VPI").
2. Confirm the returned Value (Value is "DE97EA 00").
40
Check or
Replace Parts
IC501, C184,
Q161, D141
IC501, C851,
C860, C862,
C863, C859
Refer to (J)
Refer to (J)
Refer to (J)
Refer to (J)
IC501, SA101,
P101, D101,
Q141, Q142,
R141, R142,
R144, R145,
D141, Q161,
R163, R164,
C171, C173,
R178, C184
R371, R372,
D362, C351
IC501, IC601,
R601, RA601,
C601
KX-TGC220/KX-TGC222/KX-TGC223/KX-TGCA20
9.3.
Troubleshooting by Symptom (Handset)
If your unit has below symptoms, follow the instructions in remedy column. Remedies depend on whether you have DECT tester
(*1) or not.
Symptom
Remedy (*2)
You don’t have DECT Tester.
You have DECT Tester.
(Model Number: CMD60)
Battery strength is not indicated correctly by Battery icon.
Check item (A) - (D), (E) - (G).
Check item (A) - (D), (E) - (G).
You cannot hear the caller’s voice.
Check item (A) - (C), (H), (N).
Check item (A) - (C), (H - (L)) - (N).
You cannot use handset little away from base unit even if the
Check item (I) - (M).
handset is within range of the base unit.
the Audio level is high or low.
Check item (N).
Check item (N).
The SP-Phone level is high or low.
Check item (O).
Check item (O).
Note:
(*1) A general repair is possible even if you don’t have the DECT tester because it is for confirming the levels, such as Acoustic
level in detail.
(*2) Refer to Check Point (Handset) (P.41)
9.3.1.
Check Point (Handset)
Please follow the items below when BBIC or EEPROM is replaced.
Note:
After the measuring, suck up the solder of TP.
*: The Setting Method of JIG (Handset) (P.52) is required beforehand.
The connections of adjustment equipment are as shown in Adjustment Standard (Handset) (P.54).
Items
(A)* 1.8 V Supply Adjustment
(B)*
BBIC Confirmation
Check
Point
1.8V
-
Procedure
1. Confirm that the voltage between test point 1.8V and GND is 1.8 V ± 0.02 V.
2. Execute the command “VDD”, then check the current value.
3. Adjust the 1.8V voltage of 1.8V executing command “VDD XX“(XX is the
value).
IC1, X1, R61
1. BBIC Confirmation (Execute the command “getchk”).
2. Confirm the returned checksum value.
Connection of checksum value and program number is shown below.
ex.)
(C)* EEP-ROM Confirmation
-
(D) Charge Control Check &
Charge Current Monitor
Check
-
(E)* Charge Detection (OFF)
Check
-
Check or
Replace Parts
IC1, Q1, C44,
R45, C40, C45
checksum value
73C7
program number
DE92EN
IC1, IC3, RA5,
1. EEP-ROM Confirmation (Execute the command "sendchar EPV").
C69
2. Confirm the returned Value. (Value for reference is written at "EEPROM C/
SUM” in Software_Version_Table.xls).
1. Apply 5.0 V between CHG(+) and CHG(-) with DC power supply and set IC1, Q4 Q9,
Q2, Q3, R2,
current limit to 150 mA.
R7, R8, R6,
Confirm the indication of “charging” on LCD.
R9, C19, R45
2. Confirm that the current limit LED of DC power supply is ON/OFF.
Confirm it after waiting over 1 minute at least.
(If charge control cannot be confirmed by this procedure, please use battery to
handset power supply and try again.)
1. Stop supplying 5.0 V to CHG (+) and CHG (-).
IC1, Q4 Q9,
2. Confirm the indication of “charging” has been cleared.
Q2, Q3, R2,
R7, R8, R6,
R9, C19, R45
41
KX-TGC220/KX-TGC222/KX-TGC223/KX-TGCA20
Items
(F)*
Battery Monitor Check
Check
Point
-
Procedure
1. Apply 2.25 V between BATT+ and BATT-.
2. Execute the command
sendchar PAD
sendchar LED 0
sendchar CRX 0 1
sendchar AD1
It assumes that the return value is XX.
a) XX: 70: No need to adjust
b) XX: 66 ~ 6F: Need to adjust
XX: 71 ~ 7A: Need to adjust
Write AD value of 2.25 V to EEPROM.
ex) read data: XX = 6A, write data: YY = 6A
read data: XX = 73, write data: YY = 73
EEPROM = 0009(Low Voltage) write “YY”
Execute the command “wreeprom 00 09 01 YY”.
EEPROM = 000A(No Voltage) write “YY -C"
Execute the command “wreeprom 00 0A 01 ZZ”.
Check or
Replace Parts
IC1, R45
Note:
(G)
Battery Low
Confirmation
(H)* BBIC Clock Adjustment
-
CKM
(I)*
Transmitted Power
Confirmation
-
(J)*
Modulation Check and
Adjustment
-
(K)*
Frequency Offset
Confirmation
Sensitivity Receiver
Confirmation
-
(L)*
(M)*
(N)
Power RAMP
Confirmation
Audio Check and
Confirmation
-
-
1.
2.
3.
4.
1.
2.
3.
4.
ZZ = YY - C
c) XX: 00 ~ 65: Reject
XX: 7B ~ FF: Reject
IC1, R45
Apply 2.40 V between BATT+ and BATT-.
Confirm that there is no flashing of Battery Icon.
Apply 2.25 V ± 0.08 V between BATT+ and BATT-.
Confirm that there is flashing of Battery Icon.
IC1, X1, C47
Apply 2.6 V between BATT+ and BATT- with DC power.
Input Command “sendchar sfr”, then you can confirm the current value.
Check X’tal Frequency. (10.368 MHz ± 100 Hz).
If the frequency is not 10.368 MHz ± 100 Hz, adjust the frequency of CKM
executing the command “sendchar sfr xx xx (where xx is the value)” so that the
reading of the frequency counter is 10.368000 MHz ± 5 Hz.
Note:
Clear the registered information for Base Unit before measurement, because the
Frequency will not possibly get stable due to the registered information.
Pressing the button of "3" "5" "7" "#"clears the registration.
Register to it on Base Unit after measurement.
IC1, C801,
Short Antenna pattern to GND.
C859, C860,
1. Configure the DECT tester (CMD60) as follows;
C861, C862
<Setting>
• Test mode: PP
• RFPI: 0102030405
• Traffic Carrier: 5
• Traffic Slot: 4
• Mode: Loopback
• RF LEVEL = -70 dBm
• PACKET: PP32Z
2. Execute the command “sendchar TST 01 02 03 04 05".
3. Initiate connection from DECT tester.
4. Confirm that the NTP value at ANT is 19 dBm ~ 25 dBm.
Refer to (I)
Follow steps 1 to 3 of (I).
4.Confirm that the B-Field Modulation is -350 ± 50/+350 ± 50 kHz/div using data
type Fig 31.
Follow steps 1 to 3 of (I).
Refer to (I)
4.Confirm that the frequency Offset is < ± 20 kHz.
Refer to (I)
Follow steps 1 to 3 of (I).
4.Set DECT tester power to -88 dBm.
5.Confirm that the BER is < 1000 ppm.
Follow steps 1 to 3 of (I).
Refer to (I)
4.Confirm that Power RAMP is matching.
1. Link to BASE which is connected to Line Simulator.
IC1, C12, C11,
2. Set line voltage to 48 V and line current to 50 mA.
C13, MIC,
3. Input -45 dBm (600 )/1 kHz to MIC of Handset. Measure the Level at Line I/F R23, R24,
R25, RA4,
and distortion level.
C70, C71
4. Confirm that the level is -3.5 ± 5 dBm (for NZ) or -7.0 ± 5dBm (for AL) and that
the distortion level is < 5 % at TEL Line (600  Load).
5. Input -20 dBm (600 )/1 kHz to Line I/F. Measure the Level at Receiver of
Handset and distortion level (Receive volume set to second position from
minimum).
6. Confirm that the level is -22.0 ± 4 dBm (for NZ) or -24.0 ± 4 dBm (for AL) and
that the distortion level is < 5 % at Receiver (34  Load).
42
KX-TGC220/KX-TGC222/KX-TGC223/KX-TGCA20
Items
(O) SP phone Audio Check
and Confirmation
(P)
(Q)
Charge Pump 3.0 V
Supply Confirmation
Charge Pump CP4V
Supply Confirmation
Check
Point
-
CP3V
CP4V
Procedure
1.
2.
3.
4.
Check or
Replace Parts
IC1, C78, C79,
R76, R77
Link to Base which is connected to Line Simulator.
Set line voltage to 48 V and line current to 50 mA.
Set the handset off-hook using SP-Phone key.
Input -30 dBm (600 )/1 KHz to Line I/F and measure Receiving level at SP+
and SP-.
5. Confirm that the level is -10.0 dBm ± 3 dB (for NZ) or -9.0±3 dBm (for AL) and
that the distortion level is < 5 %.
(vol = Max at SP (8  Load))
1. Confirm that the voltage between testpoint CP3.0V and GND is 3.0 V ± 0.3 V. C30, C53, C29
1. Confirm that the voltage between testpoint CP4V and GND is 4.0 V ± 0.3 V.
(Power is supplied when LED in on)
43
C52, C55,
C30, C29
KX-TGC220/KX-TGC222/KX-TGC223/KX-TGCA20
10 Disassembly and Assembly Instructions
10.1. Disassembly Instructions
10.1.1. Base Unit
10.1.1.1. KX-TGC220
ձ
ղ
Remove the 2 screws to remove
the cabinet cover.
ձ 4 screws
Remove the solders.
ղ Solders
ճ
Remove the main P.C. board.
ճ Main P.C. board
44
KX-TGC220/KX-TGC222/KX-TGC223/KX-TGCA20
մ
Remove the 2 screws to remove
the charge case and the operational P.C. board.
մ Screw
Chage case
մ Screw
Operational P.C. board
45
KX-TGC220/KX-TGC222/KX-TGC223/KX-TGCA20
10.1.2. Handset
ձ 2 screws
ձ
Remove the 2 screws.
ղ
Insert a plastic card.
(Ex. Used SIM card etc.)
between the cabinet body
and the cabinet cover, then
pull it along the gap to open
the cabinet.
Cabinet body
Cabinet cover
ճ
Likewise, open the other
side of the cabinet.
մ
Remove the cabinet cover
by pushing it upward.
յ
Remove the solders.
Cabinet cover
շ Screw
յ Solders
ն
Remove the solders to remove
the 2 charge terminals.
Main P.C. board
շ
ն Solders
Remove the screw to remove
the Main P. C. board.
2 charge terminals
46
KX-TGC220/KX-TGC222/KX-TGC223/KX-TGCA20
10.1.3. Charger Unit
ձ Remove the cabinet cover.
ձ Cabinet Cover
ղ
Remove the solders to remove
the 2 charge terminals.
ղ Solders
2 charge terminals
47
KX-TGC220/KX-TGC222/KX-TGC223/KX-TGCA20
10.2. How to Replace the Handset LCD
Note:
The illustrations are simplified in this page.
They may differ from the actual product.
P. C. board
Vertical Interval
Tolerance
Peel off the FFC (Flexible Flat Cable) from
the LCD, in the direction of the arrow. Take
care to ensure that the foil on the P.C. board
is not damaged.
0.2 mm
Horizontal Interval
Tolerance
0.2 mm
If interval tolerance between center lines
is less than 0.2 mm, it is o.k.
New LCD
OK
Fit the heatseal of a new LCD.
NG
(Inclined)
Tip of Soldering Iron
(Part No. PQZZ430PIR)
Rubber of Soldering Iron
(Part No. PQZZ430PRB)
Heatweld with the tip of the soldering
iron about 5 to 8 seconds
(in case of 60W soldering iron).
NG
(Vertical interval tolerance is
more than 0.2 mm.)
NG
(Horizontal interval tolerance is
more than 0.2 mm.)
48
KX-TGC220/KX-TGC222/KX-TGC223/KX-TGCA20
11 Measurements and Adjustments
This chapter explains the measuring equipment, the JIG connection, and the PC setting method necessary for the measurement in
Troubleshooting Guide (P.26)
11.1. Equipment Required
• Digital multi-meter (DMM): it must be able to measure voltage and current.
• Oscilloscope.
• Frequency counter: It must be precise enough to measure intervals of 1 Hz (precision; ±4 ppm)
Hewlett Packard, 53131A is recommended.
• DECT tester: Rohde & Schwarz, CMD 60 is recommended.
This equipment may be useful in order to precisely adjust like a mass production.
11.2. The Setting Method of JIG
Note:
*: If you have the JIG Cable for TCD500 series
(PQZZ1CD505E), change the following values of
resistance. Then you can use it as a JIG Cable for both
TCD300 and TCD500 series. (It is an upper compatible JIG
Cable.)
<Preparation>
• Serial JIG cable: PQZZ1CD300E*
• PC which runs in DOS mode
• Batch file CD-ROM for setting: Refer to parts list of Fixtures
and Tools(P.86)
Resistor
R2
R3
R4
R7
11.2.1.
Old value (k)
22
22
22
4.7
New value (k)
3.3
3.3
4.7
10
Connections (Base Unit)
1 Connect the AC adaptor.
2 Connect the JIG Cable GND (black).
3 Connect the JIG Cable RX (red) and TX (yellow).
JIG Cable
UTX
3 UTX (yellow)
URX
2 UGND (black)
UGND
To Serial Port
(COM port 1*)
3 URX (red)
PC
DC JACK
1
AC adaptor
Base unit P. C. board
Note:
*: COM port names may vary depending on what your PC calls it.
49
KX-TGC220/KX-TGC222/KX-TGC223/KX-TGCA20
11.2.2.
How to install Batch file into P.C.
1. Insert the Batch file CD-ROM into CD-ROM drive and
copy PNZZTG**** folder to your PC (example: D drive).
<Example for Windows>
On your computer, click [Start], select Programs
(All Programs for Windows XP/Windows Server 2003),
then click
MS-DOS Prompt. (for Windows 95/Windows 98)
Or
Accessories-MS-DOS Prompt. (for Windows Me)
Or
Command Prompt. (for Windows NT 4.0)
Or
Accessories-Command Prompt.
(for Windows 2000/Windows XP/Windows Server 2003)
2. Open an MS-DOS mode window.
3. At the DOS prompt, type "D:" (for example) to select the
drive, then press the Enter key.
<Example>
4. Type "CD 㪳PNZZTG****", then press the Enter key.
5. Type "SET_COM=X", then press the Enter key
(X: COM port number used for the serial connection on your PC).
6. Type "READID", then press the Enter key.
䊶If any error messages appear, change the port number or
䇭check the cable connection.
䊶If any value appear, go to next step.
7. Type "DOSKEY", then press the Enter key.
C: >Documents and Settings>D:
D: >>CD >PNZZTG****
D: >PNZZTG**** >SET_COM=X
D: >PNZZTG****>READID
00 52 4F A8 A8
D: >PNZZTG****>DOSKEY
D: >PNZZTG****>
<Example: error happens>
C: >Documents and Settings>D:
D: >>CD >PNZZTG****
D: >PNZZTG**** >SET_COM=X
D: >PNZZTG****>READID
‫ޓ‬CreateFile error
ERROR 10: Can't open serial port
D: >PNZZTG ****>
Note:
“*****” varies depending on the country or models.
11.2.3.
Commands
See the table below for frequently used commands.
Command name
rdeeprom
Function
Read the data of EEPROM
readid
writeid
Read ID (RFPI)
Write ID (RFPI)
hookoff
hookon
getchk
wreeprom
Off-hook mode on Base
On-hook mode on Base
Read checksum
Write the data of EEPROM
Example
Type “rdeeprom 00 00 FF”, and the data from address
“00 00” to “FF” is read out.
Type “readid”, and the registered ID is read out.
Type “writeid 00 18 E0 0E 98”, and the ID “0018 E0 0E
98” is written.
Type “hookoff”.
Type “hookon”.
Type “getchk”.
Type “wreeprom 01 23 45”. “01 23” is address and “45”
is data to be written.
50
KX-TGC220/KX-TGC222/KX-TGC223/KX-TGCA20
11.3. Adjustment Standard (Base Unit)
When connecting the simulator equipment for checking, please refer to below.
11.3.1.
Bottom View
Frequency Counter (*1)
* Send command "SFR", then
the frequency output on this TP.
Oscilloscope
Volt Meter
Oscilloscope (*2)
8
* Start Monitor
BLU
-
SP
CHARGE-
+
-
ORG
R321
C351
R322
R372
IC302
+
R701
PUR
C321
DCP
+
C342
Q702
PNLB2385Y-
Q701
R702
R371
KX-TGC2xxH
F301
DC
5.5V
DC
VCCA
2014.04.18
C116
VREF
DCM
C513
-
R112
GRY
R116
R118
GAP
L1T
C103
C112
C104
SA101
PbF
C120
C601
C113
YLW
CHARGE+
R103
ANT1
RSTN
IC601
R113
C515
R114
STM/CKM/P15
R924
TEL
Q111
D113
R117
VDDC
C115
L1R
SA102 R104
R511
R111
C110
TCK TDI
+3.0V
R115
RTCK
C611
TMS TDO
ANT1_S-GND
RA611
IC611
Q140
R148
ANT1_Short
R176
C176
R149
R175
Q171
C178
UGND
R164
URX
C167
C171
+5.5V
51
UTX
R171
C175
R172
C193
R177
R165
R158
Note:
(*1) is referred to No.2 of Check Table for RF part (P.34)
(*2) is referred to Power Supply Circuit/Reset Circuit (P.12)
Spectrum Analyzer
BRN
KX-TGC220/KX-TGC222/KX-TGC223/KX-TGCA20
11.4. The Setting Method of JIG (Handset)
This section explains the PC setting to use command required in Check Point (Handset)(P.41).
Note:
*: If you have the JIG Cable for TCD500 series
(PQZZ1CD505E), change the following values of
resistance. Then you can use it as a JIG Cable for both
TCD300 and TCD500 series. (It is an upper compatible JIG
Cable.)
<Preparation>
• Serial JIG cable: PQZZ1CD300E*
• PC which runs in DOS mode
• Batch file CD-ROM for setting: Refer to parts list of Fixtures
and Tools(P.86)
Resistor
R2
R3
R4
R7
11.4.1.
Old value (k)
22
22
22
4.7
New value (k)
3.3
3.3
4.7
10
Connections
Connect the DC Power or Battery to BATT+ and BATT-.
Connect the JIG cable GND (black) to GND.
Connect the JIG cable UTX (yellow) to UTX and URX (red) to URX.
3 URX (red)
3 UTX (yellow)
UTX
URX
2 GND (black)
GND
BATT+
1
DC Power
or Battery
To Serial Port
(com port 1*)
JIG Cable
BATT-
PC
Handset P. C. board
Note:
*: COM port names may vary depending on what your PC calls it.
52
KX-TGC220/KX-TGC222/KX-TGC223/KX-TGCA20
11.4.2.
How to install Batch file into P.C.
1. Insert the Batch file CD-ROM into CD-ROM drive and
copy PNZZTG***** folder to your PC (example: D drive).
<Example for Windows>
2. Open an MS-DOS mode window.
On your computer, click [Start], select Programs
(All Programs for Windows XP/Windows Server 2003),
then click
MS-DOS Prompt. (for Windows 95/Windows 98)
Or
Accessories-MS-DOS Prompt. (for Windows Me)
Or
Command Prompt. (for Windows NT 4.0)
Or
Accessories-Command Prompt.
(for Windows 2000/Windows XP/Windows Server 2003)
3. At the DOS prompt, type "D:" (for example) to select the
drive, then press the Enter key.
4. Type "CD 㪳PNZZTG*****", then press the Enter key.
<Example>
5. Type "SET RTX_COM=X", then press the Enter key
(X: COM port number used for the serial connection on your PC).
6. Type "READID", then press the Enter key.
䊶If any error messages appear, change the port number or
䇭check the cable connection.
䊶If any value appear, go to next step.
7. Type "DOSKEY", then press the Enter key.
C: >Documents and Settings>D:
D: >>CD >PNZZTG*****
D: >PNZZTG***** >SET RTX_COM=X
D: >PNZZTG*****>READID
00 52 4F A8 A8
D: >PNZZTG*****>DOSKEY
D: >PNZZTG*****>
<Example: Error happens>
C: >Documents and Settings>D:
D: >>CD >PNZZTG*****
D: >PNZZTG***** >SET RTX_COM=X
D: >PNZZTG*****>READID
‫ޓ‬CreateFile error
ERROR 10: Can't open serial port
D: >PNZZTG*****>
Note:
• “*****” varies depending on the country or models.
11.4.3.
Commands
See the table below for frequently used commands.
Command name
rdeeprom
Function
Read the data of EEPROM
readid
writeid
Read ID (RFPI)
Write ID (RFPI)
getchk
wreeprom
Read checksum
Write the data of EEPROM
Example
Type “rdeeprom 00 00 FF”, and the data from address
“00 00” to “FF” is read out.
Type “readid”, and the registered ID is read out.
Type “writeid 00 18 E0 0E 98”, and the ID “0018 E0 0E
98” is written.
Type “getchk”.
Type “wreeprom 01 23 45”. “01 23” is address and “45”
is data to be written.
53
KX-TGC220/KX-TGC222/KX-TGC223/KX-TGCA20
11.5. Adjustment Standard (Handset)
When connecting the simulator equipment for checking, please refer to below.
Component View
Oscilloscope
When measure RF, short "ANT-Short" and "ANT-Short-GND" with copper wire which length 5mm.
After measure do not forget to remove the wire.
ANT-Short-GND
ANT-Short
AF VOLT METER
GREEN
40
RECEIVER
AN
T1
_T
PNLB2318Z
ORANGE
TGCA20xx
PbF
P
C70
D21
C71
R51 R53 R55
R52 R54
C92 C94
C79
R76C73
C95
C91
C93
D14
R77
C72
C78
CP3V
D13
ORANGE
STM
C52
C55
C53
C29
C30
C57
C56
C44
1.8V
15 H
IC4
C191 C99
C59
C98
C190
IC1
C46
C41
C860
CP4V
R1
C36
C22
C859
C862 R20 C47 C13C11
C43
C863
R23
C12
RA7
1.8V
R15
Q6
C1
Oscilloscope
DC Volt Meter
CP+3.0V
R61
C45
JTAG
15 H
4
100
R60
AF VOLT METER
IC7
C69
100
BLUE
RA5
SP-PHONE_SPEAKER
Spectrum Analyzer
C62 C64 C96
C61 C63 C65
D22
1.8V
CP3V
11.5.1.
Q1
RA1
X1
RA3
CKM
RA2
C866
47
+
MIC+ +
47
AF VOLT METER
MIC+ RCV-
CHG_CTRL
40
MIC- RCV+
Q9
Q4
R6
C19
Q2
R2
R9
R8
DC POWER SUPPLY
2.6V
VBAT
F1
URX
UTX
VBAT
GND
BATT-
BATT+
GND
DC VOLT METER
R7
CHG+
CHG-
C5
A
Note:
(A) - (R) is referred to Check Point (Handset) (P.41)
54
Oscilloscope
Q3
C6
R45
C15
MIC Load
MIC-
OSC
1.1 kHz
Frequency Counter
* Send command "SFR", then
the frequency output on this TP.
POWER
KX-TGC220/KX-TGC222/KX-TGC223/KX-TGCA20
11.6. Things to Do after Replacing IC or X'tal
If repairing or replacing EEPROM and X'tal, it is necessary to download the required data such as Programming data or adjustment
data, etc. in memory.
The set doesn't operate if it is not executed.
11.6.1.
How to download the data
11.6.1.1. Base Unit
First, operate the PC setting according to The Setting Method of JIG(P.49).
Then download the appropriate data according to the following procedures.
EEPROM (IC611)
X'tal (X501)
Items
How to download/Required adjustment
Adjusted parameter data is stored in memory. 1) Change the address “0001” of EEPROM to “55” to download
(country version batch file, default batch file, the data.
2) Default batch file: Execute the command “default.bat”.
etc.)
3) Country version batch file: Execute the command
“TGC22EU_WW_RevXXX_YYY.bat” (KX-TGC220)(*1)
4) Clock adjustment
System clock
Clock adjustment data is in EEPROM, adjust the data again
after replacing it.
1) Apply 5.5V between DCP ad DCM with DC power.
2) Input Command "sendchar sfr", then you can confirm the
current value.
3) Check X'tal Frequency.(13.824 MHz ± 100 Hz).
4) If the frequency is not 13.824 MHz ± 100 Hz, adjust the
frequency of CLK executing the command "sendchar sfr xx xx
(where xx is the value)" so that the reading of the frequency
counter is 13.824000 MHz ± 15 Hz.
Note:
(*1) WW: country code, XXX_YYY: revision number
“XXX_YYY” vary depending on the country version. You can find them in the batch file, PNZZ- mentioned in The Setting
Method of JIG (P.49).
55
KX-TGC220/KX-TGC222/KX-TGC223/KX-TGCA20
11.6.1.2. Handset
First, operate the PC setting according to The Setting Method of JIG (P.49).
Then download the appropriate data according to the following procedures.
EEPROM (IC7)
Items
Adjusted parameter data is
stored in memory.
(country version batch file,
default batch file, etc.)
Battery Monitor Check
-
Battery Low Confirmation
-
Battery Clock Adjustment
(X1)
CLK
How to download/Required adjustment
1) Default batch file: Execute the command “default.bat”.
2) Default batch file (remaining): Execute the command
“TGCA20EUEX_DEF_RevXXX_YYY.bat”.(*2)
3) Country version batch file: Execute the command
“TGCA20EUEX_WW_RevXXX_YYY.bat”.(*2)
4) Clock adjustment
5) 2.35 V setting and battery low detection
1) Apply 2.25 V between BATT+ and BATT-.
2) Execute the command
sendchar PAD
sendchar LED 0
sendchar CRX 0 1
sendchar AD1
It assumes that the return value is XX.
a) 6c XX 71: No need to adjust
b) XX: 6A ~ 6B: Need to adjust
XX: 72 ~ 74: Need to adjust
Write AD value of 2.25 V to EEPROM.
ex) read data: XX = 6A, write data:YY = 6A
read data: XX =73, write data: YY = 73
EEPROM = 0009 (Low Voltage) write “YY“
Execute the command “wreeprom 00 09 01 YY“.
EEPROM = 000A (No Voltage) write “YY - 1D“
Execute the command “xwreeprom 00 0A 01 ZZ“.
Note:
No Voltage writing data limit is “00“.
c) XX: 00 ~ 69: Reject
XX: 75 ~ FF: Reject
1) Apply 2.40 V between BATT+ and BATT-.
2) Confirm that there is no flashing of Battery lcon.
3) Apply 2.25 V ± 0.08 V between BATT+ and BATT-.
4) Confirm that there is flashing of Battery lcon.
1) Apply 2.6 V between BATT+ and BATT- with DC power.
2) Input Command “sendchar sfr“, then you can confirm the current value.
3) Check X’tal Frequency. (10.368 MHz ± 100 Hz).
4) If the frequency is not 10.368 MHz ± 100 Hz, adjust the frequency of CLK
execute in the command “sendchar sfr xx xx (where xx is the value)“ so that the
reading of the frequency counter is 10.368000 MHz ± 5 Hz.
Note:
(*2) WW: country code, XXX_YYY: revision number
“XXX_YYY” vary depending on the country version. You can find them in the batch file, PNZZ- mentioned in The Setting
Method of JIG (P.49).
56
KX-TGC220/KX-TGC222/KX-TGC223/KX-TGCA20
11.7. RF Specification
11.7.1.
Base Unit
Item
TX Power
Modulation
Frequency Offset
RX Sensitivity
Power RAMP
Value
18.5 dBm ~ 25 dBm
-350 ± 50/+350 ± 50 kHz/div
<±20 kHz
< 1000 ppm
Power RAMP is matching
Refer to -. *
Check Point (Base Unit) (J)
Check Point (Base Unit) (K)
Check Point (Base Unit) (L)
Check Point (Base Unit) (M)
Check Point (Base Unit) (N)
*: Refer to Check Point (Base Unit) (P.39)
11.7.2.
Handset
Item
TX Power
Modulation
Frequency Offset
RX Sensitivity
Power RAMP
Value
19 dBm ~ 25 dBm
-350 ± 50/+350 ± 50 kHz/div
<±20 kHz
< 1000 ppm
Power RAMP is matching
**: Refer to Check Point (Handset) (P.41)
57
Refer to -. **
Check Point (Handset) (I)
Check Point (Handset) (J)
Check Point (Handset) (K)
Check Point (Handset) (L)
Check Point (Handset) (M)
KX-TGC220/KX-TGC222/KX-TGC223/KX-TGCA20
11.8. How to Check the Handset Speaker or Receiver
1. Prepare the digital voltmeter, and set the selector knob to ohm meter.
2. Put the probes at the speaker terminals as shown below.
SPEAKER:
Is the value between
(+) terminal and (–) terminal about 8 Ω?
RECEIVER:
Is the value between
(+) terminal and (–) terminal about 40 Ω?
YES
NO
OK
NG
Replace the speaker
(receiver).
Handset speaker (receiver)
Digital Voltmeter
11.9. Frequency Table (MHz)
Channel No
1
2
3
4
5
6
7
8
9
10
Transmit Frequency
1897.344
1895.616
1893.888
1892.160
1890.432
1888.704
1886.976
1885.248
1883.520
1881.792
BASE UNIT
Receive Frequency
1897.344
1895.616
1893.888
1892.160
1890.432
1888.704
1886.976
1885.248
1883.520
1881.792
Transmit Frequency
1897.344
1895.616
1893.888
1892.160
1890.432
1888.704
1886.976
1885.248
1883.520
1881.792
Note:
Channel No. 10: In the Test Mode on Base Unit and Handset.
58
HANDSET
Receive Frequency
1897.344
1895.616
1893.888
1892.160
1890.432
1888.704
1886.976
1885.248
1883.520
1881.792
KX-TGC220/KX-TGC222/KX-TGC223/KX-TGCA20
12 Miscellaneous
12.1. How to Replace the Flat Package IC
Even if you do not have the special tools (for example, a spot heater) to remove the Flat IC, with some solder (large amount), a
soldering iron and a cutter knife, you can easily remove the ICs that have more than 100 pins.
12.1.1. Preparation
• PbF (: Pb free) Solder
• Soldering Iron
Tip Temperature of 700 F ± 20 F (370 C ± 10 C)
Note: We recommend a 30 to 40 Watt soldering iron. An expert may be able to use a 60 to 80 Watt iron where someone with
less experience could overheat and damage the PCB foil.
• Flux
Recommended Flux: Specific Gravity  0.82.
Type  RMA (lower residue, non-cleaning type)
Note: See About Lead Free Solder (PbF: Pb free) (P.5)
12.1.2. How to Remove the IC
1. Put plenty of solder on the IC pins so that the pins can be completely covered.
Note:
If the IC pins are not soldered enough, you may give pressure to the P.C. board when cutting the pins with a cutter.
2. Make a few cuts into the joint (between the IC and its pins) first and then cut off the pins thoroughly.
3. While the solder melts, remove it together with the IC pins.
When you attach a new IC to the board, remove all solder left on the board with some tools like a soldering wire. If some solder is
left at the joint on the board, the new IC will not be attached properly.
59
KX-TGC220/KX-TGC222/KX-TGC223/KX-TGCA20
12.1.3. How to Install the IC
1. Temporarily fix the FLAT PACKAGE IC, soldering the two marked pins.
*Check the accuracy of the IC setting with the corresponding soldering foil.
2. Apply flux to all pins of the FLAT PACKAGE IC.
3. Solder the pins, sliding the soldering iron in the direction of the arrow.
12.1.4. How to Remove a Solder Bridge
1. Lightly resolder the bridged portion.
2. Remove the remaining solder along the pins using a soldering iron as shown in the figure below.
60
KX-TGC220/KX-TGC222/KX-TGC223/KX-TGCA20
12.2. How to Replace the Shield Case
12.2.1. Preparation
• PbF (: Pb free) Solder
• Soldering Iron
Tip Temperature of 700 F ± 20 F (370 C ± 10 C)
Note:
We recommend a 30 to 40 Watt soldering iron. An expert may be able to use a 60 to 80 Watt iron where someone with less
experience could overheat and damage the PCB foil.
• Hot Air Desoldering Tool
Temperature: 608 F ± 68 F (320 C ± 20 C)
12.2.2. Caution
• To replace the IC efficiently, choose the right sized nozzle of the hot air desoldering tool that matches the IC package.
• Be careful about the temperature of the hot air desoldering tool not to damage the PCB and/or IC.
12.2.3. How to Remove the Shield Case
Note:
If you don’t have special tools (ex. Hot air disordering tool), conduct the following operations.
1. Cut the case along perforation.
2. Remove the cut part.
3. Cut the four corners along perforation.
4. Remove the reminds by melting solder.
61
KX-TGC220/KX-TGC222/KX-TGC223/KX-TGCA20
12.2.4. How to Install the Shield Case
Note:
• If you don’t have special tools (ex. Hot air disordering tool), conduct the following operations.
• Shield case’s No. : PNMC1091Z
1. Put the shield case.
2. Solder the surroundings.
62
KX-TGC220/KX-TGC222/KX-TGC223/KX-TGCA20
12.3. Terminal Guide of the ICs, Transistors and Diodes
12.3.1. Base Unit
4
C
Cathode
(Reverse View)
1
89pin
(GND)
2
88
1
22
45
44
23
E
C
B
Anode
C0DBEYY00102
DA2J10100L
C2HBCY000144
C
Cathode
B
B
B1ACGP000008
C
4
PNWI1GC210GH
PNWI2GC220GH
Anode
E
DSC7003S0L
5
67
66
1
3
8
Cathode
Anode
DA2J10100L
1SS355
B0EDER000009
12.3.2. Handset
C
8
5
1
B
E
1
4
C3FBLY000162
PNWIGCA20EXR
B1ADGE000012
B1ABGE000011
B1ADCF000040
2SC6054JSL
UNR9216J0L
E
2SC6054JSL
B1ABDM000001
DRC9113Z0L
B1ABDER000009
B1ABCE000009
(Reverse View)
89 pin
67
88
(GND)
66
1
22
23
Anode
45
44
C1CB00003837
63
(Reverse View)
Cathode
B3ACB0000190
B0ECKM000008
KX-TGC220/KX-TGC222/KX-TGC223/KX-TGCA20
Memo
64
KX-TGC220/KX-TGC222/KX-TGC223/KX-TGCA20
13 Schematic Diagram
13.1. For Schematic Diagram
13.1.1. Base Unit (Base Unit (Main))
Notes:
1. DC voltage measurements are taken with voltmeter from the negative voltage line.
Important Safety Notice:
Components identified by
mark have special characteristics important for
safety. When replacing any of these components, use only the manufacture's
specified parts.
2. The schematic diagrams may be modified at any time with the development of new technology.
13.1.2. Handset (Handset (Main))
Notes:
1. DC voltage measurements are taken with an oscilloscope or a tester with a ground.
2. The schematic diagrams may be modified at any time with the development of new technology.
65
KX-TGC220/KX-TGC222/KX-TGC223/KX-TGCA20
13.2. Base Unit (Main)
13.2.1. KX-TGC220
1/2
RF Block
+3.0V
ANT1
SL
W=0.3mm
L=6.5mm
SL
W=0.3mm
L=6.95mm
3.9k
R175
C176 1u
R172
GND
MSL
W=0.25
L=2mm
680k
C175
RXp
SHORT
560p
Q171
220
SL
W=0.3mm
L=12.45mm
C819
GND
1.5p
C820
1.5p
2.7n
L803
15p
GND
GND
W 0.15mm
L 6.2mm
1st layer
SHORT1
0.1u
GND
W 0.2mm
L 3.8mm
1st layer
Rx RF
C178
GND
C874
GND
C871
1.5p
SHORT
GND
SHORT
SHORT
SHORT3
SHORT6
GND
C873
2p
C863
RXn
C895
2p
1.3p
ANT1_S-GND
R171
C872
SHORT2
GND
1k
MSL
Wm=0.4mm
Lm=10mm
1
ANT1_Short
R176
2
ANTPattern
C193
R177
0.027u
1k
(1)
TXp
10p
K
K
NC
TXn
NC
SPP
NC
SHORT4
NC
1.5p
SHORT
A
R331
68k
R332
33k
C331 NC
D472
D473
A
+5.5V
Pre-matching
VBAT
C477
open-stub
SL
W=2.2mm
L=5.0mm
SHORT
open-stub
SL
W=2.0mm
L=10.8mm
SPN
10p
C811
SHORT5
open-stub
SL
W=2.9mm
L=3.8mm
Tx RF
MSL
W=0.25
L=2mm
C478
SL
W=0.2mm
L=20mm
C810
(2)
Tx-balun
SL
W=0.3
L=40mm
X501
GND
12p
C508
TXn
TXp
RXp
RXn
C509
10p
13.824M
10u
1u
C511
C510
VBAT
C507
2.2u
2.2u
C513
TO RF BLOCK
TXn
TRSW_n 43
ANT 42
VCC_FE 41
VDD_IF 40
VCC_IF 39
VDD_APU 38
VBAT_APU 37
XIN 36
XOUT 35
DCINS 34
PWM0 33
PWM1 32
SPOUTP 31
VCCPA 30
SPOUTN 29
44
MSG_LED
ANS_LED
45
U-ART
JTAG
NC: No Components
66
*C601
0.1u
*IC601
8M FLASH
1
*CS
2
DO/IO1*HOLD/IO3
VCC 8
7
3
*WP/IO2
6
4
GND
CLK
DI/IO0
5
KEYIN1
KEYIN2
KEYIN3
KEYS_E
SPI_DI
SPI_DO
SPI_CLK
+3.0V
SPI_CLK
SPI_DO
SPI_DI
SPI_CS
JTAG_TDO
JTAG_RTCK
JTAG_TCK
JTAG_TMS
JTAG_TDI
TDO
RTCK
TCK
TMS
TDI
URX
URX
UTX
UTX
EEP_SCL
EEP_SDA
EEP_WP
NC
UGND
(7)
SPI_CS
*Q652
(6)
NC
1
*SW1
*R511
2
C519
0.1u
MSG_LED
82
VDDC
+3.0V
1.2k
(5)
81
66
79
65
80
64
78
63
76
61
62
10k
10k
10k
10k
ANS_LED
59
60
R506
R502
R503
R504
*R652
0.1u
67
68p
*R651
0.1u
C518
JTAG_TDO
JTAG_TDI
JTAG_TCK
JTAG_TMS
JTAG_RTCK
*Q651
*C652
68p
*C651
*C650
68p
1.2k
C517
CHARGE_DET
77
KEYIN2
KEYS_C
KEYIN1
KEYS_E
KEYIN3
KEYS_D
KEYIN2
KEYS_C
KEYIN1
KEYS_E
KEYIN3
KEYS_D
ANS_LED
MSG_LED
LED_VDD
GND
74
58
75
57
73
0.1u
72
54
56
C516
9
1
52
53
(4)
IC501
70
STM/CKM/P15
51
55
1u
C515
1k
R924
VBAT
RSTN
50
71
GND
69
49
9pin
PARALLEL WIRE
L502 100n
*WBX01
TXp
RXp
RXn
GND_RF
TRSW_p
ANT_n
ATST_n
ATST_p
TEST
RSTN
NC
VCC_VCO
GPIO[27]
VDDUSB
DM_USB/GPI28
DP_USB/GPI29
VDDC1
JTAG_TDO
JTAG_TDI
JTAG_TCK
JTAG_TMS
JTAG_RTCK
GPIO[0]/SCL_IIC
GPIO[1]/SDA_IIC
GPIO[2]
GPIO[3]
GPIO[4]
GPIO[5]
GPIO[6]
GPIO[7]
GPIO[8]
VDDIO1
GPIO[9]
GPIO[10]
GPIO[11]
GPIO[12]
GPIO[13]
GPIO[14]
47
48
68
46
(3)
(8)
KX-TGC220/KX-TGC222/KX-TGC223/KX-TGCA20
2/2
E
C102 680p
2
SA102
NC
1
2
270V
C103
3
C104
4
(BROWN)
NC
2
L1T
NC
R144
1
(RED)
NC
NC
(3216)
R142
2.7k
D101
NC
*C143 NC
*C141 NC
*R145 2.2k
NC
L2T
L1R
(YELLOW)
P101
L2R
GAP
HOOK
R118
(BLACK)
2
DC Monitor
100k
100n
C116
100k
C115
D133
1
C101 680p
1
C
( for AL)
B
(3216)
NC
R123
*R124
( for AL)
680
( for AL)
*R148 10k
*R149
PULSE_MUTE
VDDC
D132
10p
Q142
TEL LINE
POWER, CHARGE
MIC, SP
BBIC
FLASH, EEPROM, KEY, LCD
FOR DK/BT
RF
BACKUP
1
R117
1u
C182
10
NC
D142
K0.01u
C184
TX
100n
NC
R163
R167
39
*Q140
130k
0.01u
100k
R141
100k
R152
C152
2.2k
(0.5W)
R151
C171 0.033u
R164
C142
E
D141
R169
B
.
NC
47k
R165
C
R162
27k
C167
2700p
4.7k
RX
(2)
*Q141
:
:
:
:
:
:
:
:
SA101
Tx
Q161
R158
1k
0.1u
10u
(1)
C164
NC
R159
C161
C166
270
R104 R103
Rx
R160
1XX
3XX
4XX
5XX
6XX
7XX
8XX
9XX
R115
5.6M
R116
5.6M
Caller ID
R121
390k
C121
680p
R122
390k
C122
680p
+3.0V
1
47k
R371
0.1u
DCP
DCM
Q701
NC
C351
R702
CHARGE_DET
4
1k
CHARGE+
R701
NC
CHARGE-
Q702
NC
3.0V
3
VBAT
+5.5V
10u
IC302
IN
R322
3
1u
100
OUT1
OUT2
1
140
KEYS_D
KEYS_C
UTX
URX
4
ADJ
R321
C341
0.1u
6.3
330u
2
PULSE_MUTE
HOOK
BELL
C321
L501
100n
C342
C503
RA151
1
2
1k
C505 10u
1u
A
D362
+3.0V
VCCA
K
VREF
22
CHG+
VDDC
+3.0V
89
88
87
86
1M
R112
1SR154
LOUT 28
HSSPOUTP27
MPWR26
HSMIP 25
HSMIN 24
MIP 23
85
84
83
(6)
0.1u
C112
R501 10
GPIO[15]
GPIO[16]
GPIO[17]
VDDIO2
GPIO[18]
GPIO[19]
(5)
3.0A
VCCA
C506
MIN 21
VCCA 20
1u
VREF 19
DCIN3/LIN1 18
DCIN2 17
DCIN1 16
DCIN0/LIN0 15
DOUBOUT 14
DOUBCAPP1 13
DOUBCAPP12 C504
1u
DOUBCAPN11 C521
1u
DOUBCAPN110
VBAT 9
C501
C502
COREOUT 8
10u
0.1u
VDDC2 7
GPIO[26]
6
GPIO[25]
5
GPIO[24]
4
GPIO[23]
3
GPIO[22]
2
GPIO[21]
1
VDDC
GPIO[20]
(4)
+3.0V
F301
1
+3.0V
(3)
22k
D113
1000p
0.01u
R113
Q111
+5.5V
R111
C110
C113
NC
C181
C120
68k
R372
R114
BELL
+5.5V
Bell detection
(7)
1.2V
C520
0.1u
EEP_WP
EEP_SCL
EEP_SDA
(8)
+3.0V
RA611
3.3k
8
7
6
5
2
4
IC611
1
0.1u
3
C611
SHIELD
64K EEPROM
1
A0
VCC 8
2
A1
WP 7
3
A2
SCL
6
4
GND
SDA
5
PCB
ZA1
10
9
8
PNLB2385YA-GW
7
HAK_CL1
11
6
12
5
PCB
GND
RE1
1
2
3
4
GND
NC: No Components
KX-TGC220/222/223 SCHEMATIC DIAGRAM (Base Unit (Main))
67
KX-TGC220/KX-TGC222/KX-TGC223/KX-TGCA20
13.3. Base Unit (Operation)
1/1
UP
9
KEYIN2
KEYS_C
KEYIN1
KEYS_E
KEYIN3
KEYS_D
ANS_LED
MSG_LED
LED_VDD
LOCATOR
DOWN
1
ERASE
LED901 (ANS_LED)
K
A
ANSWER
SKIP
REPEAT
MSG
A
K
LED902
(MSG_LED)
NC: No Components
KX-TGC220/222/223 SCHEMATIC DIAGRAM (Base Unit_Operation)
68
KX-TGC220/KX-TGC222/KX-TGC223/KX-TGCA20
Memo
69
KX-TGC220/KX-TGC222/KX-TGC223/KX-TGCA20
13.4. Handset (Main)
1/2
Charge Current
To Battery
VBAT
VBAT
!
F1 2.5A
BATT+
C6
K0.1u
GND
BATT-
C15
R45
0.1
J39p
6.3V
220u
GND
SOCn
SHORT
(1)
(2)
C1
SOCp
OJ4
* When "SFR" command is executed,
13.824MHz frequency will be output.
Q2
KEY_LED
KIN_1
KIN_2
KIN_3
KIN_4
STB_F
EEP_WP
LCD_CD
LCD_SCL
LCD_SID
GND
C19
K1000p
CHG+
R2
R9
30k
30k
CHG+
C5
Q3
R8 4.3
(3216)
R7
820
K0.1u
To Charge
Terminal
CP3V
C69
K0.1u
6
SDA
5
C57
K0.1u
IC7 32k
GND
+1.8V
67
P0_2/SDA2/UTX2
68
P0_1/URX/PWM0
69
71
72
73
74
75
76
77
78
79
80
0
AST
Not Used
Not Used
SP
FLASH
Not Used
3
for TGD
Not Used
82
83
C46
84
10p
85
86
RF_TXn
RF_TXp
SOFT_A1
1
2
C45
K0.1u
TO RF BLOCK
KIN_4
for TGC
81
TX _RF
LEFT
Not Used
87
88
Not Used
UP
Not Used
SOFT_A2
RF_RXn
RF_RXp
89
1
KIN_3
VBAT
for TGC
C47
K0.1u
RX _RF
TALK2
1u
C866
INT
R20
4
5
F56k
6
54
55
56
57
58
59
60
61
62
TALK1
13
Not Used
10
D10p 11
SHARP
for TGD
GND
RF_RXn
RF_RXp
RFP1
RFP0
REF_RES
AVS_XTAL
XTAL2
XTAL1
AVD_XTAL
RF_SUPPLY1
P3_4/PARADET
P3_5/RINGOUT/RINGING
P3_6/RINGn
for TGC
(4)
C43
LCD_RESET
LCD_LED0
9
GND
(3)
IC1
8
RST
LCD_CS
EEP_WP
7
C44
K0.1u
JTAG
GND
P0_0/UTX
VDD2
*RSTn
JTAG
P2_5/PCM_FSC/SF
P2_4/SCL1/PCM_DO/DP3
P2_3/SDA1/PCM_DI/DP2
P2_2/PCM_CLK/CLK100
WLED_CUR_0
WLED_CUR_1
P2_1/ECZ2/PWM1/LED4
P2_0/ECZ1/PWM0/LED3
LDORF_CTRL
VDD3
RFP0n
RF_SUPPLY2
RF_SUPPLY_PA
RF_TXn
RF_TXp
RFP2
70
6
1k
NC
UTX
URX
5
R61
R60
P0_3/SCL2/URX2
+1.8V
63
STM
64
GND
SCL
VSS
65
CHARGE_CTRL
CHARGE_DET
WP
A2
66
GND
A1
3.3k
4
4
7
P0_4/SPI_EN
3
8
P0_5/SPI_CLK
P0_6/SPI_DO
P0_7/SPI_DI/PWM1
P2_6/WTF_IN
P1_1/INT1/LE
P1_2/INT2/SK
P1_3/INT3/SIO
P1_4/INT4/TDOD
P1_5/INT5/RDI/VDDE
P2_7/BXTAL
VDD1
Q9
CKM
RA5
VCC
A0
3
GND
2
2
1
R6
10k
12
Q4
GND
CHG-
GND
X1
for TGD
Not Used
Not Used
Not Used
Not Used
3
1
2
Not Used
10.368M
Not Used
GND
KIN_2
for TGC
9
for TGD
Not Used
8
SOFT_C1
7
Not Used
DOWN
Not Used
1Vp-p
0.85V
RIGHT
SOFT_C2
STB_B
STB_C
STB_D
LCD_CD
(5)
LCD_SID
LCD_SCL
KEY_LED
LCD_CS
LCD_RESET
STB_F
STB_E
CP3V
C95
330
R55
C65
16V K1u
330
R54
C64
C63
16V K1u
C93
3.3k
R53
NC
NC
10k
R52
NC
10k
R51
NC
NC
C62
C61
@NC
*LED2
C91
16V K1u
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
3
4
5
6
7
8
9
10
11
12
13
14
15
A0
SCK
SDA
VDD
VSS
VSS
VB0+
VB0-
VB1-
VB1+
VLCD
GND
LCD
RES
LCD
*R15
2
*Q6
*RA3
C94
C92
16V K1u
C96
K1u
@NC
1
@NC
*LED3
@NC
@NC
*LED4
@NC
@NC
*LED1
*LED8
*LED6
*RA2
CS1
NC: No Components
270
GND
*RA1
*LED5
*C76
NC
GND GND
*LED7
-
*C77
NC
*LED9
+
*WLED
KEY B/L LED
(TGC/TGD = Amber)
(WP = NC)
@NC
CP4V
LCD B/L LED
(TGD = White)
(TGC = Amber)
16V K1u
STB_D
STB_C
STB_B
0V
LCD_LED0
STB_A
KIN_1
1.5k
GND
70
GND
KX-TGC220/KX-TGC222/KX-TGC223/KX-TGCA20
2/2
(1)
(2)
*open-stub $N>l9g
SLx2
W1=0.2mm
L1=3.3mm
W2=0.7mm
L2=5.0mm
MSL
<u?.46EY:GE,2=$N$?$aW=0.25mm
%A%C%W$KCV$-49$( L=2mm
50 ohm line
L=2mm
ANT1_TP
GND
C862
1.5p
GND
ANT-Short
ANT-Short-GND
RX-balun
MSL
W=0.170mm
L=3.6mm
S=0.125mm
C863
1.8p
SHORT
OJ5
RF BLOCK
RF_RXn
RX_RF
OJ1
50 ohm line
Total L=4mm
MSL
W=0.25mm
L=2mm
RF_RXp
SHORT
OJ7
SHORT
+1.8V
3
C56
4
K1u
C41
7
*HOLD/IO3
*WP/IO2
GND
CLK
DI/IO0
GND
GND
MSL
W=0.25mm
L=5mm
RF_TXn
10p
VCC 8
*CS
2 DO/IO1
8M
open-stub
SL
W=2.0mm
L=10.8mm
open-stub
SL
W=2.9mm
L=2.8mm
SL
W=0.2mm
L=20.0mm
K0.1u
6
TX-balun
SL
W=0.3mm
L=39.0mm
open-stub
SL
W=2.2mm
L=5.0mm
C860
1.1p
1
VJ1
SL
W=0.3mm
L=6.5mm
SL
W=0.3mm
L=6.95mm
C859
IC4
TX_RF
OJ2
MSL
W=0.25mm
L=5mm
RF_TXp
SHORT
LPF
5
GND
Pre-matching
%A%C%W2=
4layer GND 6/2=$N$?$a
POWER
for TGC
* FbB"$N>l9g
C=3.6pF
10.5mm2
VBAT
GND
OJ3
SHORT
OFF1
CP4V
CP4V
CP3V
Not Used
45
46
47
48
49
50
51
52
GND
CP3V
C53
K2.2u
Sp-phone RX
C72 D13
NC
C73
C98
D10p
C99 R761
R77
C79
C78
D10p
K2200p
NC
D14
NC
NC
1
K2200p
GND GND
GND GND
GNDGND
Q1
RCV+
C70 D21
RECEIVER+
68p
NC
C71 D22
GND
K0.1u
C11
Handset RX
MIC_POWER
RA7
%9%k!<%[!<%k
)
FbB"C
9mm2 :1.75pF
K1u
68p
K0.1u
SP-PHONE_SPEAKER
+1.8V
1.8V
1.8V
C22
GND
C13
+
-
SL
W=0.15mm
L=6.3mm :3.6nH + 0.4nH(
GND GND
22
21
20
19
18
17
P3_7/RINGp
P3_2/CIDINp
VREFp
CIDINn/MICp
CIDOUT/MICn
MICh
VREFm
LSRp
LSRn
16
15
14
Not Used
for TGD
CP_VOUT1 44 C30
K1u GND
CP_C2y 43
VBAT
CP_VBAT2 42
C191
C29
K1u
CP_C1y 41
VBAT
CP_C2x 40 K1u
C59
CP_C1x 39
K1u
CP_VBAT1 38
P3_0/DP0/PAOUTn 37
VDDPA 36
P3_1/DP1/PAOUTp 35
CHARGE_DET
P1_7/CHARGE 34
CHARGE_CTRL
CHARGE_CTRL 33
VBAT 32
C190
DC_CTRL 31
K0.1u
DC_I 30
SOCn
DC_SENSE 29
C36
SOCn 28
J39p
SOCp
SOCp 27
P1_0/INT0/ADC1 26
STB_A
P3_3/ADC0 25
R1 10k
LDO_CTRL 24
(MAX500mA)
VDD/AVD 23
IC1
(4)
D10p
QSPI_IO0
QSPI_SCK
QSPI_IO3
VDDIO_QSPI
QSPI_CS
QSPI_IO1
QSPI_IO2
P1_6/PON
CP_VOUT2
(3)
53
C52 K1u
C55
open-stub
SL
W=0.6mm
L=20.0mm
OFF2
+
RECEIVER
NC
-
RECEIVER-
SL
W=0.15mm
L=6.3mm :3.6nH + 0.4nH(
RCV-
GND GND
GND GND
R23
)
%9%k!<%[!<%k
FbB"C
9mm2 :1.75pF
1k
820
2
3
1
4
C12
K2.2u
MIC+
GND
MICp
MIC
MICn
Handset TX/Sp-phone
TX
AP1
STB_E
MIC-
(5)
ZA1
10
9
8
7
11
6
12
5
1
2
3
4
Test Pattarn for Pattern
HAK_CL1
Test Pattarn for Carbon
CARBON_CL1
*PCB
RE1
GND
NC: No Components
KX-TGCA20AZ SCHEMATIC DIAGRAM (Handset_Main)
71
KX-TGC220/KX-TGC222/KX-TGC223/KX-TGCA20
Memo
72
KX-TGC220/KX-TGC222/KX-TGC223/KX-TGCA20
14 Printed Circuit Board
14.1. Base Unit (Main)
14.1.1. Component View
HAK_CL1
C477
C478
D473
D362
D472
C811
C341
X501
C509
C508
C810
C510
R331
C507
C331
C511
R332
R501
C181
C505
C820
C873
C819
C872
C863
C871
C895 C516
L803 L502
C874
C506
RA151
R122
C503
C122
R121
C504 C521
IC501
D133 D132
L501
C517
C121
C501
C101
C518
SW1
D101
C502
R506
C520
R502
R504
R503
C182
C184
D141
R124
Q141
Q161
R162
R169
C166
C142
R152
R151 C152
Q652
Q651
C651
C652
D142
C650
R651
N3
KE
YS
_E
KE
YI
N1
KE
YS
_C
N2
YI
YI
KE
KE
KE
LE
S_
AN
YS
D
D
D
R163
LE
R167
VD
C161
_D
R652
G_
A
R123
P101
R142
Q142
D_
R160
R159
C164
R141
R145
C143
MS
PbF
C102
C141
R144
KX-TGC2xxH
2014.04.18
ZA1
LE
PNLB2385Y-
C519
KX-TGC220/222/223 MAIN BOARD (Base Unit (Component View))
73
KX-TGC220/KX-TGC222/KX-TGC223/KX-TGCA20
14.1.2. Bottom View
BLU
-
SP
CHARGE-
+
-
ORG
R321
C351
R322
R372
IC302
+
R701
PUR
C321
DCP
+
C342
Q702
PNLB2385Y-
Q701
R702
R371
KX-TGC2xxH
F301
DC
VCCA
2014.04.18
C116
VREF
DCM
C513
-
R112
GRY
R116
R118
GAP
L1T
C103
C112
C104
SA101
PbF
C120
C601
C113
YLW
CHARGE+
R103
ANT1
RSTN
IC601
R113
C515
R114
STM/CKM/P15
R924
TEL
R117
VDDC
C115
BRN
L1R
SA102
R104
STM/CKM
Q111
D113
R111
C110
TCK T D I
+3.0V
R115
RTCK
C611
TMS T D O
IC611
Q140
+3.0V
ANT1_S-GND
RA611
ANT1_Short
R176
C176
R149
R175
Q171
C178
R171
C175
R172
C193
R177
R165
R158
R164
UGND
URX
C167
C171
UTX
}
UTX
URX
+5.5V
UGND
R148
VDDC
R511
for JIG
KX-TGC220/222/223 MAIN BOARD (Base Unit (Bottom View)
74
KX-TGC220/KX-TGC222/KX-TGC223/KX-TGCA20
14.2. Base Unit (Operation)
UP
DOWN
PNLB2320Z
KX-TGC2xxH
PbF
LOCATOR
LED901
ERASE
ANSWER
ANSWER1
SKIP
MSG
MSG1
REPEAT
MSG3
MSG2
LED902
KX-TGC220 OPERATION BOARD (Base Unit (Component View))
75
KX-TGC220/KX-TGC222/KX-TGC223/KX-TGCA20
Memo
76
KX-TGC220/KX-TGC222/KX-TGC223/KX-TGCA20
14.3. Handset
14.3.1. Component View
ANT-Short-GND
ANT-Short
GREEN
RECEIVER
PNLB2318Z
ORANGE
TGCA20xx
PbF
ANT1_TP
C70
D21
C71
C62 C64 C96
C61 C63 C65
R51 R53 R55
R52 R54
D22
C92 C94
C79
R76C73
C95
C91
C93
D14
R77
C72
C78
CP3V
D13
IC7
ORANGE
C69
STM
C57
C56
R60
C52
C55
C53
C29
C30
SP-PHONE_SPEAKER
BLUE
RA5
CP3V
IC4
C44
R61
C45
JTAG
C191 C99
C59
C98
C190
IC1
C46
C41
C860
C22
C859
C862 R20 C47 C13C11
C43
C863
R23
CP4V
CP4V
R1
C36
1.8V
1.8V
Q1
C12
RA7
R15
Q6
C1
RA1
X1
RA3
CKM
RA2
C866
CKM
POWER
MIC+ RCV-
CHG_CTRL
MIC- RCV+
Q9
Q4
R6
C19
R2
R9
Q2
R8
Q3
C6
R45
C15
F1
URX
UTX
VBAT
GND
URX
UTX
GND
BATTERY
BATT-
BATT+
BATT+
BATT-
R7
CHG+
CHG-
C5
CHG (-)
CHG (+)
A
KX-TGCA20 HANDSET BOARD (Component View)
77
for JIG
KX-TGC220/KX-TGC222/KX-TGC223/KX-TGCA20
14.3.2. Bottom View
REF-1
LCD
LED9
LED7
LED8
SOFT_A2
SOFT_A1
SOFT_C1
SOFT_C2
UP
TALK1
OFF2
RIGHT
LEFT
OFF1
TALK2
DOWN
LED5
LED3
1
2
3
4
5
6
LED2
LED1
7
8
9
AST
0
SHARP
LED6
LED4
SP
INT
FLASH
MIC
A
KX-TGCA20 HANDSET BOARD (Bottom View)
78
KX-TGC220/KX-TGC222/KX-TGC223/KX-TGCA20
15 Exploded View and Replacement Parts List
15.1. Cabinet and Electrical Parts (Base Unit)
15.1.1. KX-TGC220
1
6
7
8
4
9
2
10
A
5
3
PCB2
A
PCB1
11
12
Ref.No.
Figure
A
A
2.6 x 8mm
79
KX-TGC220/KX-TGC222/KX-TGC223/KX-TGCA20
15.2. Cabinet and Electrical Parts (Handset)
CUSHION RUBBER
*STICK IT WITHIN THE FRAMEWORK ON P.C.B.
115
107
E108
104
103
B
E104
102
E102
E101
101
E103
E107
105
E106
E105
106
112
113
114 (*3)
110
(*2)
109
116
108
B
Battery cover
111
Spacer (No.114)
Stick it between
ribs.
Put it in the center.
Ref.No.
Figure
B
φ
2× 8 mm
Note:
(*1) This cable is fixed by welding. Refer to How to Replace the Handset LCD (P.48).
(*2) The rechargeable Ni-MH battery HHR-4MY is available through sales route of Panasonic.
(*3) Attach the SPACER (No. 114) to the exact location described above.
80
KX-TGC220/KX-TGC222/KX-TGC223/KX-TGCA20
15.3. Cabinet and Electrical Parts (Charger Unit)
200
200-1
200-5
200-2
200-3
200-4
81
KX-TGC220/KX-TGC222/KX-TGC223/KX-TGCA20
15.4. Accessories
A1(*1)
A2(*2)
A4
A3
Note:
(*1) for Base unit
(*2) for Charger unit
82
KX-TGC220/KX-TGC222/KX-TGC223/KX-TGCA20
15.5. Replacement Parts List
Safety
1. RTL (Retention Time Limited)
Note:
The “RTL” marking indicates that its Retention Time is
Limited.
When production is discontinued, this item will
continue to be available only for a specific period of
time.
This period of time depends on the type of item, and
the local laws governing parts and product retention.
At the end of this period, the item will no longer be
available.
2. Important safety notice
Components identified by the mark indicates special
characteristics important for safety. When replacing any
of these components, only use specified manufacture's
parts.
3. The S mark means the part is one of some identical parts.
For that reason, it may be different from the installed part.
4. ISO code (Example: ABS-94HB) of the remarks column
shows quality of the material and a flame resisting grade
about plastics.
5. RESISTORS & CAPACITORS
Unless otherwise specified;
All resistors are in ohms () k=1000, M=1000k
All capacitors are in MICRO FARADS (F) p=F
*Type & Wattage of Resistor
ERX:Metal Film
ERG:Metal Oxide
ER0:Metal Film
ECSZ Type
0F:3.15V
1A:10V
1V:35V
0J:6.3V
Safety
IC302
IC501
IC601
IC611
Q111
Q140
Q141
Q142
Q161
Q171
Q651
Q652
D101
D113
D132
D133
D141
D362
Others
L501
L502
L803
1V :35V
50,1H:50V
1J
:16V
2A
:100V
RA151
RA611
SA101
15.5.1.1. Cabinet and Electrical Parts
R111
R112
R113
R114
R115
R116
R117
R118
R121
R122
R124
R141
R142
R145
R148
R149
15.5.1.1.1. KX-TGC220
Ref.
No.
1
2
3
4
5
6
7
8
9
10
Part No.
PNKM1543T1
PNBC1558Z1
PNJK1225W
PNKE1274Z5
PNJT1189Z
L0AA02A00087
PQHG10729Z
PQHR11313Z
K2ECYZ000002
PQJJ1T039H
Ref.
No.
PCB1
PCB1
15.5.1. Base Unit
Safety
Part Name & Description Remarks
CABINET BODY
BUTTON, NAVIGATOR KEY
KEYBOARD SWITCH
CASE, CHARGE TERMINAL
TERMINAL, CHARGE
SPEAKER
RUBBER PARTS, SPEAKER
GUIDE, SPEAKER
JACK, DC
JACK, MODULAR
CABINET COVER
RUBBER PARTS, FOOT
CUSHION
PS-HB
15.5.1.2.1. KX-TGC220
PQ4R:Chip
ERS:Fusible Resistor
ERF:Cement Resistor
0J :6.3V
1A :10V
1C :16V
1E,25:25V
PNKF1325Y1
PNHA1013Z
Part Name & Description Remarks
Note:
(*1) When replacing IC611 or X501, make the adjustment
using PNZZTGC220NZ, PNZZTGC220AL, Refer to How to
download the data (P.55) of Things to Do after
Replacing IC or X'tal (P.55)
(*2) When removing ZA1 use special tools (ex. Hot air
disordering tool).
(*3) Backside of this IC has a ground plate. Refer to How to
Replace the Flat Package IC (P.59).
(*4) Supplied IC is Flat Package Type.
Wattage
10,16:1/8W 14,25:1/4W
12:1/2W
1:1W 2:2W 3:3W
*Type & Voltage Of Capacitor
Type
ECFD:Semi-Conductor
ECCD,ECKD,ECBT,F1K,ECUV:Ceramic
ECQS:Styrol
ECQE,ECQV,ECQG:Polyester
ECUV,PQCUV, ECUE:Chip ECEA,ECST,EEE:Electlytic
ECQP:Polypropylene
ECQMS:Mica
Voltage
ECQ Type ECQG
ECQV Type
1H:50V
05:50V
2A:100V
1:100V
2E:250V
2:200V
2H:500V
Part No.
15.5.1.2. Main P.C.Board Parts
Type
ERC:Solid
ERDS:Carbon
ERJ:Chip
Ref.
No.
11
12
ABS-HB
PMMA-HB
PS-HB
ASB-HB
83
Part No.
Part Name & Description Remarks
PNWP1C220NZH MAIN
P.C.BOARD
ASS'Y
(RTL)
PNWP1C220ALH MAIN
P.C.BOARD
ASS'Y
(RTL)
(ICs)
C0DBEYY00102 IC
C2HBCY000144 IC (*3)(*4)
PNWI2GC220GH IC (FLASH)
PNWI1GC220GH IC (EEPROM)(*1)
(TRANSISTORS)
2SC6054JSL
TRANSISTOR(SI)
B1ABCE000009 TRANSISTOR(SI)(for AL)
B1ACGP000008 TRANSISTOR(SI)
B1ABDM000001 TRANSISTOR(SI)
DSC7003S0L
TRANSISTOR(SI)
2SC6054JSL
TRANSISTOR(SI)
DRC9113Z0L
TRANSISTOR(SI)
DRC9113Z0L
TRANSISTOR(SI)
(DIODES)
B0EDER000009 DIODE(SI)
DIODE(SI)
DA2J10100L
1SS355
DIODE(SI)
1SS355
DIODE(SI)
B0BC02000015 DIODE(SI)
B0ECKM000008 DIODE(SI)
(COILS)
G1CR10J00010 COIL
G1CR10J00010 COIL
G1C2N7Z00009 COIL
(RESISTOR ARRAYS)
EXB24V102JX COMPONENTS PARTS
EXB28V332JX COMPONENTS PARTS
(VARISTOR)
J0LE00000047 VARISTOR
(RESISTORS)
PQ4R10XJ105 1M
PQ4R10XJ473 47k
ERJ3GEYJ223 22k
ERJ2GEJ683
68k
ERJ3GEYJ565 5.6M
ERJ3GEYJ565 5.6M
ERJ3GEYJ104 100k
ERJ3GEYJ104 100k
ERJ3GEYJ394 390k
ERJ3GEYJ394 390k
PQ4R18XJ100 10 (for AL)
ERJ3GEYJ104 100k
PQ4R18XJ272 2.7k
ERJ2GEJ222
2.2k
ERJ2GEJ103
10k (for AL)
D0GA681JA021 680 (for AL)
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
KX-TGC220/KX-TGC222/KX-TGC223/KX-TGCA20
Safety
Ref.
No.
R151
R152
R158
R159
R160
R162
R163
R164
R165
R169
R171
R172
R175
R176
R177
R321
R322
R331
R332
R371
R372
R501
R502
R503
R504
R506
R651
R652
R702
R924
Part No.
ERJ2GEJ104
ERJ2GEJ134X
ERJ2GEJ472X
ERJ2GEJ102
ERJ3GEYJ271
ERJ2GEJ473
D0GG390JA007
ERJ2GEJ222
ERJ3GEYJ273
ERJ2GEJ473
ERJ2GEJ221
ERJ2GEJ684
D0GA392JA015
ERJ2GEJ102
ERJ2GEJ102
ERJ2RKF1400
ERJ2RKF1000
ERJ2RKF6802
ERJ2RKF3302
ERJ8GEYJ1R0
ERJ8GEYJ1R0
ERJ3GEYJ100
ERJ2GEJ103
ERJ2GEJ103
ERJ2GEJ103
ERJ2GEJ103
ERJ2GEJ122
ERJ2GEJ122
ERJ2GEJ102
ERJ2GEJ102
C101
C102
C110
C112
C113
C115
C116
C120
C121
C122
C142
C152
C161
C166
C167
C171
C175
C176
C178
C182
C184
C193
C321
C341
C342
C351
C501
C502
C503
C504
C505
C506
C507
C508
C509
C510
C511
C513
C515
C516
C517
C518
F1K2H681A008
F1K2H681A008
F1J2A104A025
F1J2A104A025
PQCUV1H103KB
ECUV1C104KBV
ECUV1C104KBV
ECUE1H102KBQ
F1K2H681A008
F1K2H681A008
ECUV1H103KBV
ECUE1C103KBQ
F1K1E1060001
PQCUV1H104KB
ECUV1H222KBV
ECUV1C333KBV
ECUE1H561KBQ
ECUE0J105KBQ
ECUV1C104KBV
ECUE1H100DCQ
ECUV1C105KBV
ECUE1A273KBQ
ECUV1C105KBV
F2G0J331A146
ECUE1A104KBQ
ECUV1C105KBV
ECUE1A104KBQ
ECJ1VB0G106M
ECJ1VB0G106M
ECUE0J105KBQ
ECJ1VB0G106M
ECUE0J105KBQ
ECUV0J225KBV
ECUE1H100DCQ
ECUE1H120JCQ
ECUE0J105KBQ
ECJ1VB0G106M
ECUV0J225KBV
ECUE0J105KBQ
ECUE1A104KBQ
ECUE1A104KBQ
ECUE1A104KBQ
Safety
Part Name & Description Remarks
100k
130k
4.7k
1k
270
39
39
2.2k
27k
47k
220
680k
3.9k
1k
1k
140
100
68k
33k
1
1
10
10k
10k
10k
10k
1.2k
1.2k
1k
1k
(CAPACITORS)
680p
680p
10
10
0.01
0.1
0.1
0.001
680p
680p
0.01
0.01
10
0.1
0.0022
0.033
560p
1
0.1
10p
1
0.027
1
330
0.1
1
0.1
10
10
1
10
1
2.2
10p
12p
1
10
2.2
1
0.1
0.1
0.1
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
Ref.
No.
C519
C520
C521
C601
C611
C650
C651
C652
C810
C811
C819
C820
C863
C871
C872
C873
C874
C895
Part No.
Part Name & Description Remarks
ECUE1A104KBQ
ECUE1A104KBQ
ECUE0J105KBQ
ECUE1A104KBQ
ECUE1A104KBQ
ECUE1H680JCQ
ECUE1H680JCQ
ECUE1H680JCQ
F1G1H1R5A765
ECUE1H100DCQ
ECUE1H100DCQ
F1G1H1R5A765
F1G1H1R5A765
F1G1H1R5A765
F1G1H1R3A765
F1G1H2R0A765
ECUE1H150JCQ
F1G1H2R0A765
F301
0.1
0.1
1
0.1
0.1
68p
68p
68p
1.5p
10p
10p
1.5p
1.5p
1.5p
1.3p
2p
15p
2p
(OTHERS)
K5H302Y00003 FUSE
P101
X501
ZA1
D4DAY220A022 THERMISTOR
H0J138500011 CRYSTAL OSCILLATOR (*1)
PNMC1091Z
MAGNETIC SHIELD(*2)
15.5.1.3. Operational P.C.Board Parts
Safety
S
S
Ref.
No.
PCB2
LED901
LED902
Part No.
Part Name & Description Remarks
PNWP2TGC220H OPERATIONAL P.C.BOARD
ASS'Y (RTL)
(LEDS)
B3AAB0000347 DIODE(SI)
B3AAB0000347 DIODE(SI)
15.5.2. Handset
15.5.2.1. Cabinet and Electrical Parts
S
S
Safety
S
S
S
S
84
Ref.
No.
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
Part No.
PNGP1327Z1
PNYE1128Z
PNKM1545T4
PNYE1126Z
PNBC1492W1
PNJK1240U
L0AD01A00029
PNHR1757Z
L0AD02A00026
PNHS1502Z
PNJC1018Z
PNKF1275Z4
PNKK1077Z4
PNHS1466Z
PNHR1644Z
PQHG10729Z
Part Name & Description Remarks
PANEL, LCD
TAPE, DOUBLE SIDED
CABINET BODY
SPACER,CUSHION LCD
BUTTON, NAVIGATOR KEY
KEYBOARD SWITCH
RECEIVER
GUIDE, SPEAKER
SPEAKER
SPACER, SPEAKER NET
BATTERY TERMINAL
CABINET COVER
LID, BATTERY
SPACER, BATTERY
SPACER
RUBBER PARTS
PMMA-HB
ABS-HB
ABS-HB
ABS-HB
ABS-HB
ABS-HB
KX-TGC220/KX-TGC222/KX-TGC223/KX-TGCA20
15.5.2.2. Main P.C.Board Parts
Safety
Note:
(*1) Reconfirm the model No. written on the handset’s name
plate when replacing PCB100. Because the model No. of
the optional handset may differ from the included handset.
(*2) When replacing IC4 or X1, make the adjustment
using PNZZTGC220NZ, PNZZTGC220AL, Refer to How to
download the data (P.55) of Things to Do after
Replacing IC or X'tal (P.55)
(*4) When replacing the handset LCD, See How to
Replace the Handset LCD (P.48).
(*5) Backside of this IC has a ground plate. Refer to How to
Replace the Flat Package IC (P.59).
(*6) Supplied IC is Flat Package Type.
Safety
Ref.
No.
PCB100
IC1
IC4
IC7
Q1
Q2
Q3
Q4
Q6
Q9
LED7
LED8
LED9
RA1
RA5
RA7
R1
R2
R6
R7
R8
R9
R15
R20
R23
R45
R51
R52
R53
R54
R55
R61
R76
R77
C1
C5
C6
C11
C12
C13
C15
C19
C22
C29
C30
C36
C41
C43
Part No.
Part Name & Description Remarks
PNWP1CA20AZR MAIN
P.C.BOARD
ASS'Y
(RTL) (*1)
(ICs)
C1CB00003837 IC(*5)(*6)
C3FBLY000162 IC(*2)
PNWIGCA20EXR IC (EEPROM)(*2)
(TRANSISTORS)
B1ADGE000012 TRANSISTOR(SI)
B1ADCF000040 TRANSISTOR(SI)
B1ABGE000011 TRANSISTOR(SI)
B1ADCF000040 TRANSISTOR(SI)
2SC6054JSL
TRANSISTOR(SI)
UNR9216J0L
TRANSISTOR(SI)
(DIODES)
B3ACB0000190 DIODE(SI)
B3ACB0000190 DIODE(SI)
B3ACB0000190 DIODE(SI)
(RESISTOR ARRAYS)
EXB28V271JX RESISTOR ARRAY
EXB28V332JX RESISTOR ARRAY
EXB24V821JX RESISTOR ARRAY
(RESISTORS)
ERJ2GEJ103
10k
ERJ2GEJ303
30k
ERJ2GEJ103
10k
ERJ2GEJ821
820
ERJ8GEYJ4R3V 4.3
ERJ2GEJ303
30k
D0GA152JA021 1.5k
D0GA563ZA006 56k
ERJ2GEJ102
1k
D0GBR10JA113 0.1
ERJ2GEJ103
10k
ERJ2GEJ103
10k
ERJ2GEJ332
3.3k
ERJ2GEJ331
330
ERJ2GEJ331
330
ERJ2GEJ102
1k
ERJ2GEJ1R0
1
ERJ2GEJ1R0
1
(CAPACITORS)
EEE0JA221WP 220
ECUV1C104KBV 0.1
ECUV1C104KBV 0.1
ECUE1A104KBQ 0.1
ECUV0J225KBV 2.2
ECUE1A104KBQ 0.1
ECUE1H390JCQ 39p
ECUE1H102KBQ 0.001
ECUE0J105KBQ 1
ECUE0J105KBQ 1
ECUV1A105KBV 1
ECUE1H390JCQ 39p
ECUE1A104KBQ 0.1
ECUE1H100DCQ 10p
S
S
Ref.
No.
C44
C45
C46
C47
C52
C53
C55
C56
C57
C59
C69
C70
C71
C78
C79
C91
C92
C93
C94
C95
C96
C98
C99
C190
C191
C859
C860
C862
C863
C866
Part Name & Description Remarks
E102
E103
E104
E105
E106
E107
E108
F1
0.1
0.1
10p
1
1
2.2
10p
1
0.1
1
0.1
68p
68p
0.0022
0.0022
1
1
1
1
1
1
10p
10p
0.1
1
10p
CERAMIC CAPACITOR
CERAMIC CAPACITOR
CERAMIC CAPACITOR
0.1
(OTHERS)
L5DYBYY00067 LIQUID CRYSTAL DISPLAY
(*4)
PNHR1950Z
PLATE, LCD
PNHX1761Z
COVER, LCD
PNHR1949Z
GUIDE, LCD
PNJT1142Z
CHARGE TERMINAL (L)
PNJT1143Z
CHARGE TERMINAL (R)
PNVE1015Z
BATTERY TERMINAL
PQHG10729Z
RUBBER PARTS
K5H252Y00002 FUSE
MIC100
X1
ZA1
L0CBAY000053 BUILTIN -MICROPHONE
H0J103500039 CRYSTAL OSCILLATOR (*2)
PNMC1091Z
MAGNETIC, SHIELD
E101
S
S
S
S
S
S
S
Part No.
ECUE1A104KBQ
ECUE1A104KBQ
ECUE1H100DCQ
ECUE0J105KBQ
ECUE0J105KBQ
ECUV1A225KBV
ECUE1H100DCQ
ECUE0J105KBQ
ECUE1A104KBQ
ECUE0J105KBQ
ECUE1A104KBQ
ECUE1H680JCQ
ECUE1H680JCQ
ECUE1H222KBQ
ECUE1H222KBQ
ECUV1C105KBV
ECUV1C105KBV
ECUV1C105KBV
ECUV1C105KBV
ECUV1C105KBV
ECUE0J105KBQ
ECUE1H100DCQ
ECUE1H100DCQ
ECUE1A104KBQ
ECUE0J105KBQ
ECUE1H100DCQ
F1G1H1R1A765
F1G1H1R5A765
F1G1H1R8A765
ECUE1A104KBQ
15.5.3. Charger Unit
15.5.3.1. Cabinet and Electrical Parts
S
Safety
S
S
S
S
S
S
S
S
Ref.
No.
200
Part No.
PNLC1042ZS
200-1
200-2
200-3
200-4
PNKM1479Y2
PNJT1148Z
PNKF1280Z4
PQHA10023Z
200-5
PNJJ021001Z
Part Name & Description Remarks
CHARGER UNIT ASS'Y
without NAME PLATE
(RTL)
CABINET BODY
CHARGE TERMINAL
CABINET COVER
RUBBER PARTS, FOOT
CUSHION
JACK, MODULAR
PS-HB
PS-HB
15.5.4. Accessories and Packing Materials
Safety
85
Ref.
No.
A1
Part No.
PNLV226AL0Z
A2
PNLV233ALKZ
A3
PQJA10168Z
A4
PNJA1037Z
Part Name & Description Remarks
AC ADAPTOR (for Base
Unit)
AC ADAPTOR (for Charger
Unit)
CORD, TELEPHONE (for
Australia)
CORD, TELEPHONE (for
New Zealand)
KX-TGC220/KX-TGC222/KX-TGC223/KX-TGCA20
15.5.5. Screws
Safety
Ref.
No.
A
B
Part No.
XTB26+8GFJ
XTB2+8GFJ
Part Name & Description Remarks
TAPPING SCREW
TAPPING SCREW
15.5.6. Fixtures and Tools
Note:
(*1) See Equipment Required (P.49), and The Setting
Method of JIG The Setting Method of JIG
(Handset)(P.52).
(*2) When replacing the Handset LCD, See How to
Replace the Handset LCD (P.48).
Safety
Ref.
No.
Part No.
Part Name & Description Remarks
PQZZ1CD300E
JIG CABLE (*1)
PNZZTGC220NZ BATCH FILE CD-ROM (*1)
(for FX)
PNZZTGC220AL BATCH FILE CD-ROM (*1)
(for PD)
PQZZ430PIR
TIP OF SOLDERING IRON
(*2)
PQZZ430PRB
RUBBER OF SOLDERING IRON
(*2)
ADDA
86