MITSUBISHI SOUND PROCESSORS M62498FP DIGITAL SOUND CONTROLLER WITH SURROUND DESCRIPTION The M62498FP is an optimum digital sound controller IC for home audio. It has a 5ch input selector,input volume,surround(3 variation),tone control(3 band),loudness and 2ch master volume. It can control all of these functions with serial data. FEATURES PACKAGE Built-in 5ch input selector. Built-in input volume (2dB step/3bit) IC for Dolby-pro-logic Interface Built-in Surround (ON/OFF,High/Middle/Low(3 variation)) Tone control (Bass/Mid/Treble) Built-in Loudness. Main Volume (36 step (0 to -80dB,- ∞) Microcomputer Interface Outline 42P2R-A 0.8mm Pitch 450mil SSOP (8.4mm x 17.5mm x 2.0mm) RECOMMENDED OPERATING CONDITIONS Supply voltage range ....Vcc= 4.5~5.5 Rated supply voltage.....Vcc=5V SYSTEM CONFIGURATION IC for Dolby-pro-logic IN A1 IN B1 IN C1 IN D1 IN E1 INPUT VOLUME MAIN VOLUME TONE CONTROL MAIN VOLUME B1 A1 VOL OUT1 & LOUDNESS IN A2 IN B2 IN C2 IN D2 IN E2 INPUT VOLUME SURROUND MAIN VOLUME MAIN VOLUME B2 A2 VOL OUT2 & LOUDNESS µ-com INTERFACE IC for Dolby-pro-logic CLK MITSUBISHI ELECTRIC DATA ( 1 / 17 ) MITSUBISHI SOUND PROCESSORS M62498FP DIGITAL SOUND CONTROLLER WITH SURROUND PIN CONFIGURATION AND IC INTERNAL BLOCK DIAGRAM CLOCK 22 21 DATA GND 23 20 VCC VOL OUT2 24 19 VOL OUT1 MAIN VOLUME 2 -18 to -80dB,-∞dB VOL IN2 25 50k MAIN VOLUME1 -18 to -80dB,-∞dB 50k 18 VOL IN1 VSELB OUT2 26 17 VSELB OUT1 VOLUME SELECT B1 VOLUME SELECT B2 TRE2 27 A B A 16 TRE1 B MO2 28 15 MO1 MI2 29 14 MI1 BO2 30 13 BO1 BI2 31 12 BI1 TONE SELECT2 LOUD2 32 B A A TONE SELECT1 B 11 LOUD1 VSELA OUT2 33 VSELA IN2 34 /REC-C2 IN VOL 35 OUT2 IN 2E 36 10 VSELA OUT1 IN 2B 39 IN 2A 40 REC-B2/SUR1 41 REC-B1/SUR2 42 50k 100k MAIN VOLUME2 0to -16dB 9.5k VOLUME SELECT A2 B 100k 12k B A A 100k MAIN VOLUME1 0 to -16dB VOLUME SELECT A1 REC-C SW REC-C SW D,E INPUT ATT SW IN 2D 37 12k IN 2C 38 50k 12k 9.5k 12k 9.5k INPUT VOLUME 2 100k E INPUT ATT SW 100k 200k INPUT VOLUME 1 100k E INPUT ATT SW 100k 6 IN 1D 5 IN 1C 4 IN 1B 3 IN 1A 2 REF OUT 1 REF IN 100k A B REC-B SW 25k A SW42 200k IN 1E 9.5k 50k 50k 100k SW41 7 100k REC-A SW D,E INPUT ATT SW REC-A SW 8 VSELA IN1 /REC-C1 IN VOL OUT1 9 B REC-B SW REF AMP. 25k MITSUBISHI ELECTRIC ( 2 / 17 ) MITSUBISHI SOUND PROCESSORS M62498FP DIGITAL SOUND CONTROLLER WITH SURROUND PIN DESCRIPTION Pin No. 1 2 3,4,5,6,7, 36,37,38,39,40 Function Symbol REF IN Input pin of the reference Amp. REF OUT Output pin oh the reference Amp. IN 1A,1B,1C,1D,1E 2A,2B,2C,2D,2E Input pin of the input selector Ch1 and Ch2 8,35 INVOL OUT1,2 Output pin of the input volume 1 and 2 9,34 VSELA IN1,2/REC-C1,2 10,33 VSELA OUT1,2 11,32 LOUD1,2 12,31 BI1,2 13,30 BO1,2 14,29 MI1,2 15,28 MO1,2 16,27 TRE1,2 17,26 VSELB OUT1,2 18,25 VOL IN1,2 Input pin of the main volume 19,24 VOL OUT1,2 Output pin of the main volume 20 VCC The power supply 21 DATA Input pin of the serial data 22 CLOCK Clock input pin for the serial data forwarding 23 GND GND 41 REC-B2/SUR1 42 REC-B1/SUR2 Input pin of the volume input selector A1 and A2 /Output pin of the REC-C1 and 2 Capacitor connection pin for the volume changing noise reduction Frequency characteristic setting pin in the loudness part Frequency characteristic setting pin in the tone control(Bass). Frequency characteristic setting pin in the tone control(Mid). Frequency characteristic setting pin in the tone control(Treble). Output pin of the volume input selector B1 and 2 Output pin of the REC-B2/Device connection pin for the surround external parts Output pin of the REC-B1/Device connection pin for the surround external parts MITSUBISHI ELECTRIC ( 3 / 17 ) MITSUBISHI SOUND PROCESSORS M62498FP DIGITAL SOUND CONTROLLER WITH SURROUND ABSOLUTE MAXIMUM RATINGS Symbol Conditions Parameter Limits Units 6.0 V VCC Supply voltage Pd Power dissipation Ta≤25°C 960 mW K Thermal derating Ta>25°C 9.6 mW/ °C Topr Operating temperature -20 to +75 °C Tstg Storage temperature -40 to +125 °C THERMAL DERATING 1000 960 500 480 0 0 25 50 75 80 100 125 150 AMBIENT TEMPERATURE Ta [°C] MITSUBISHI ELECTRIC ( 4 / 17 ) MITSUBISHI SOUND PROCESSORS M62498FP DIGITAL SOUND CONTROLLER WITH SURROUND RECOMMENDED OPERATING CONDITION (Ta=25°C,unless otherwise noted) Parameter Supply voltage Symbol Conditions VCC MIN TYP MAX Units 4.5 5.0 5.5 V Logic"H"level input voltage VIH GND reference 2.4 VCC V Logic"L"level input voltage VIL GND reference GND 0.7 V RELATIONSHIP BETWEEN DATA AND CLOCK CLOCK D0 D1 D2 D3 DD DE DF DATA Data signal is read at the rising edge of clock. Signal is latched at the rising edge of the latch signal. MITSUBISHI ELECTRIC Latch signal: H ( 5 / 17 ) MITSUBISHI SOUND PROCESSORS M62498FP DIGITAL SOUND CONTROLLER WITH SURROUND DATA CONTROL SPECIFICATION For kinds of input format options are availably by changing slot settings of DC,DD. (When the IC is powered up,the internal setting are not fixed.) <MUTE cancellation data> (x is optional setting) D04 D14 D24 D34 D44 D54 D64 D74 D84 D94 DA4 DB4 DC DD DE DF X X X 0 X 1 X X X X X X 1 1 0 0 (1) D01 D11 D21 D31 D41 TONE CONTROL TREBLE D51 D61 D71 D81 D91 DA1 DB1 DC DD DE DF 0 0 0 DD DE DF 1 0 0 DA3 DB3 DC DD DE DF TONE INPUT SELE CTOR 0 0 0 DD DE DF 1 0 TONE CONTROL BASS TONE CONTROL MID Tip address 0 (2) DO2 D12 D22 D32 D42 A1 VOLUME CH 1 (3) DO3 D13 D23 D52 D62 D72 D82 INPUT D ATT SW B1 VOLUME CH 1 D33 D43 D53 D63 D73 D83 D93 LOUD NESS SW B1 VOLUME CH2 A1 VOLUME CH 2 D92 (4) DA2 DB2 DC INPUT E ATT SW 0 0 0 1 Note1) DO4 D14 D24 D34 D44 D54 D64 D74 D84 D94 DA4 DB4 DC Note) SURROUN D OF OUTSIDE SETTING Mute REC-B ON:1 OFF:0 B INPUT REC-A VOLUME ON:1 SELECTOR INPUT VOLUME INPUT SELECTO R SURROUN D OF INSIDE SETTING A INPUT VOLUME SELECTOR 1 SURRO UND 1 0 OFF:0 REC-C ON:1 OFF:0 0 Note1) Surround of outside setting, It becomes"D54=1"--->SW41 and 42 setting = B fixation.Surround of inside setting (Surround of outside non setting), It becomes "D54=0--->SW41 and 42 setting = A fixation,It becomes volume input selector A setting = A fixation. Note2) In power supply investing to Mute an output pin,it becomes setting like the following.Input selector = ALL OFF,Outside surround mode setting,REC-A~C SW=OFF,B1 main volume=-∞ setting.The similar MUTE setting can be done by setting D34=D54=1 to DC=DD=1,DE=DF=0. MITSUBISHI ELECTRIC ( 6 / 17 ) MITSUBISHI SOUND PROCESSORS M62498FP DIGITAL SOUND CONTROLLER WITH SURROUND SETTING CODE (1)TONE CONTROL (TREBLE/MID/BASS) ATT TREBLE D01 MID D41 BASS D81 1 + 8dB D11 D51 D91 1 D21 D61 DA1 0 D31 D71 DB1 0 (8)INPUT SELECTOR INPUT D04 D14 D24 A ch 0 0 0 + 6dB 1 0 1 1 B ch 0 0 1 + 4dB 1 0 1 0 1 0 1 0 0 1 C ch D ch 0 + 2dB 0 1 1 0dB 0 0 0 0 E ch 1 0 0 - 2dB 0 0 0 1 - 4dB 0 0 1 0 - 6dB 0 0 1 1 - 8dB 0 1 0 0 OFF ON 1 (9) REC-A SWITCH REC-A OUTPUT Note) It is possible to control only at D54="1"setting. AVOL SELECTOR D93 DB4 0 1 OFF ON D94 0 BYPASS 0 1 OUTSIDE SURROUND INPUT 1 (10)SURROUND Note) It is possible to control only at D54="0"setting. (5)TONE INPUT SELECTOR (4)B VOL SELECTOR BVOL SELECTOR 1 1 (3)A VOL SELECTOR (2)LOUDNESS LOUDNESS ALL OFF DA4 TONE INPUT BYPASS 0 BYPASS 0 TONE 1 INSIDE SURROUND INPUT 1 DA3 SURROUND D34 D44 OFF 0 0 L M 1 0 0 1 H 1 1 (11)INPUT VOLUME (6) E INPUT ATT SW (7) D INPUT ATT SW E INPUT ATT SW DA2 D INPUT ATT SW D92 0dB 0 0dB 0 -5/-8dB 1 D/E INPUT ATT SW -8dB -5dB DB3 0 1 D64 D74 D84 0 dB -2 dB 0 0 0 0 0 1 -4 dB 0 1 0 (8) VOCAL CUT SW -6 dB 0 1 1 VOCAL CUT SW -8 dB 1 0 0 -10 dB 1 0 1 -12 dB 1 1 0 -14 dB 1 1 1 -5/-8dB (13) D/E INPUT ATT SW INPUT VOLUME 1 DB2 OFF 0 ON 1 Note:Do not input other data than the above. MITSUBISHI ELECTRIC ( 7 / 17 ) MITSUBISHI SOUND PROCESSORS M62498FP DIGITAL SOUND CONTROLLER WITH SURROUND (12)A MAIN VOLUME A T T FRONT STEP VOL. CH 1 D02 D12 D22 D32 FRONT STEP VOL. CH 2 D03 0 0 0 0 0 0 0 0 1 D13 0 0 0 0 1 1 1 1 0 D23 0 0 1 1 0 0 1 1 0 D33 0 1 0 1 0 1 0 1 0 0 dB -2 dB -4 dB -6 dB -8 dB -10 dB -12 dB -14 dB -16 dB (13)B MAIN VOLUME A T T BACK STEP VOL. CH 1 BACK STEP VOL. CH 2 0 dB -2 dB -4 dB -6 dB -8 dB -10 dB -12 dB -14 dB -16 dB -18 dB -20 dB -22 dB -24 dB -26 dB -28 dB -32 dB -36 dB -40 dB -44 dB -48 dB -52 dB -56 dB -60 dB -61 dB -62 dB -63 dB -64 dB -∞ dB D42 D43 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 D52 D53 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 1 1 1 1 D62 D63 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 1 MITSUBISHI ELECTRIC D72 D73 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 D82 D83 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 ( 8 / 17 ) MITSUBISHI SOUND PROCESSORS M62498FP DIGITAL SOUND CONTROLLER WITH SURROUND ELECTRICAL CHARACTERISTICS (Ta=25°C,VCC=5.0V,f=1kHz,unless otherwise noted. INPUT VOLUME=0dB,SURROUND,LOUDNESS=OFF,VOL.INPUT SELECTOR A,B setting=Bypass,TONE INPUT SELECTOR=Bypass. Refer to the application circuit example.) (1)Power supply characteristics Parameter Circuit current Symbol AIdd Test condition Limits MIN TYP MAX Units No signal setting 35 60 mA (2)Input/Output characteristics (Total) Ta=25°C Parameter Input impedance Symbol Rin VIMt Test condition 3~5pin,38~40pin VIMtDE 48 (Input pin to 6,7,36,37)Output pin to 19,24 RL=10Ω,THD=1% Units 22 33 1.2 1.4 Vrms 2.8 3.1 Vrms 1.0 1.25 Vrms -2.0 0 (Input pin to3~5,38~40) Output pin to 19,24,A main Vol=-2dB RL=10KΩ,THD=1% Maximum input Amplitude Limits MIN TYP MAX KΩ D,Ech ATT SW=-8dB,Input VOL=-2dB Maximum output Amplitude Gain VOMt Gvt THDA Total harmonic distortion THDB NoA Output noise level NoB Cross talk between channels Volume maximum attenuation quantity CT (Input pin~3,40)Output pin to19,24 RL=10Ω,THD=1% Vi=0.5Vrms,FLAT, Pin(3~6,37~40pin)-19,24gains (Input pin to 3,40) Output pin to19,24 DIN-AUDIO,Vi=0.5Vrms ,RL=30Ω B Volume input selector THDA:BypassΩTHDB:Tone 2.0 dB 0.006 0.07 % 0.009 0.09 % 19,24pin,Rg=0Ω,JIS-A, Main volume=-∞ 2.5 6 µVrms 19,24pin,Rg=0Ω,JIS-A, Main volume=0dB 5 10 µVrms 19,24pin,Rg=0Ω,JIS-A, B Volume input selector:Tone 7 15 µVrms 19,24pin,Rg=0Ω,JIS-A,B Volume input select:Tone,Tone input select:Surround 10 20 µVrms -80 -65 dB -80 dB Vo=0.5Vrms , RL=10KΩ,JIS-A Pin19 to 24gains Rg=10KΩ ATTmax Vi=1Vrms ,JIS-A Main volume= -∞ MITSUBISHI ELECTRIC ( 9 / 17 ) MITSUBISHI SOUND PROCESSORS M62498FP DIGITAL SOUND CONTROLLER WITH SURROUND (3)Tone control characteristics Vi=0.2Vrms,Input pin to 9 and 34,Output pin to 17 and 26, A VOL input selector:Input to outside surround,Tone input selector:Bypass,B VOL input selector:Tone,unless otherwise noted. Parameter Symbol Test conditions f=100Hz Tone bass setting +8dB Value of Boost(Bass) G(BASS)B Value of Cut(Bass) G(BASS)C f=100Hz Tone bass setting -8dB Limits Units MIN TYP MAX 6 8 10 dB -10 -8 -6 dB Value of Boost(Mid) G(MID)B f=1kHz Tone mid setting +8dB 6 8 10 dB Value of Cut(Mid) G(MID)B f=1kHz Tone mid setting -8dB -10 -8 -6 dB Value of Boost(Treble) G(TRE)B f=10kHz Tone treble setting +8dB 6 8 10 dB Value of Cut(Treble) G(TRE)B f=10kHz Tone treble setting -8dB -10 -8 -6 dB Balance between channels BALT boost condition +8,-8dB -2 0 +2 dB MITSUBISHI ELECTRIC ( 10 / 17 ) MITSUBISHI SOUND PROCESSORS M62498FP DIGITAL SOUND CONTROLLER WITH SURROUND FUNCTION DESCRIPTION (1)Main volume This IC has 2 system independence electron volume of low warp percentage and low noise. 0dB~ -∞dB attenuation quantity can be set with 36 steps(0dB~ -44dB:2dB step,-44dB~ -76dB:4dB step, -77dB ~ -80dB:1dB step). The attenuation quantity to 0~ -16dB can be set in A1 Vol. The attenuation quantity to 0~ -64dB can be set in B1 Vol.They are possible to control. Equivalent circuit of MAIN VOLUME block Tone & Surround block A VOL input selector 0dB~ -16dB: 2dB step VSELA OUT1,2 17,26pin VSELB OUT1,2 VOL IN1,2 17,26pin 18,25pin + - VOL OUT1,2 19,24pin B VOL input selector Condenser for the changing noise reduction + 0dB~ -28dB:2dB step -28dB~ -60dB:4dB step -61dB~ -64dB:1dB step (2)Input selector,Input volume This IC has 5 input selector of 2ch and Input volume of 2ch for Input TRIMMER. The input selector D, E input is either of -8 dB of 0dB/ a choice in the input level with ATT SW. The input volume of 0~-14dB can be set with the 2 dB step. 100k A Note1) When inputting a signal above the power supply voltage in D, E input choice, make ATT SW ON. 100k B Note2)The setting of ATT SW changes the input resistance of D, E input like the following. ATT -8dB of D,E input setting: 20kohm(TYP value) 0dB setting : 60kohm(TYP value) 100k C 12k 0dB~ -14dB:2dB step D 9.5k 50k E 12k 9.5k D Input ATT SW (0dB/-8dB) + - To volume input selector A E Input ATT SW (0dB/-8dB) Note3) At the time of input selector A~C, E or ALL OFF D input ATT SW becomes -8dB setting. At the time of input selector A~D or ALL OFF D input ATT SW becomes -8dB setting. Note4)This SW is for the gain adjustment in 0 dB setting in the D, E input ATT. MITSUBISHI ELECTRIC ( 11 / 17 ) MITSUBISHI SOUND PROCESSORS M62498FP DIGITAL SOUND CONTROLLER WITH SURROUND (3)Equivalent circuit of tone control 3-1Bass,Mid (Boost mode) IN OUT R3 R2 1 f0 = 2π Q= C1 R1(R2+R3)C1C2 1 C1C2R2 C1+C2 R1 C2 R1 Gv = 20log R2+R3 +2 R1 R3 +2 R1 (dB) 3-2 Bass,Mid (Cut mode) IN OUT R2 1 f0 = 2π Q= R1(R2+R3)C1C2 Gv = 20log R3 (Hz) 1 C1C2R2 C1+C2 R1 R3 +2 R1 R2+R3 +2 R1 (Hz) C2 C1 R1 (dB) MITSUBISHI ELECTRIC ( 12 / 17 ) MITSUBISHI SOUND PROCESSORS M62498FP DIGITAL SOUND CONTROLLER WITH SURROUND 3-3 Treble (Boost) IN Gv = 20log OUT R1+R2 (dB) R1 R2 R1 C1 3-4 Treble (Cut) IN R2 Gv = 20log R1 R1+R2 OUT (dB) R1 C1 <Curve of characteristics> Bass Mid Treble +8dB setting +8dB 0dB setting -8dB -8dB 100 1k 10k Frequency f(Hz) MITSUBISHI ELECTRIC ( 13 / 17 ) MITSUBISHI SOUND PROCESSORS M62498FP DIGITAL SOUND CONTROLLER WITH SURROUND (4) Equivalent circuit of Vocal cut This IC incorporates the circuit which realizes a vocal cut function simply by lowering gain in the area using the mid circuit of the tone control. But be careful because vocal cut ON setting,the mid of the tone control can not used. VOCAL CUT SW VOCAL CUT ON setting :SW OFF VOCAL CUT OFF setting:SW ON IN OUT R3 R2 R2+R3=200KΩ f0 = 1 2π R1(R2+R3)C1C2 (Hz) C1 C2 2 Gv = 20log R2+R3 +2 R1 R1 (dB) At vocal cut ON setting, the frequency characteristic can be set like the following,by the resistance of putting outside:The fixed number of R1 and C1,C2. <CHARACTERISTIC CURVE> 1.Vocal cut characteristic f0=550Hz edition R=3KΩ,C1=C2=0.012µF Gv=-30dB 8dB setting 2.Tone control mid characteristic edition f0=530Hz R=10KΩ,C1=C2=6800pF Gv=-20dB Tone mid corrugation at Vocal cut OFF setting 8dB setting Tone mid corrugation at Vocal cut OFF setting +10dB +10dB 0dB 0dB -10dB -10dB -20dB -20dB Tone mid corrugation at Vocal cut ON setting -30dB 100 550 1k Tone mid corrugation at Vocal cut ON setting -30dB 100 10k 550 1k 10k Frequency f(Hz) Frequency f(Hz) MITSUBISHI ELECTRIC ( 14 / 17 ) MITSUBISHI SOUND PROCESSORS M62498FP DIGITAL SOUND CONTROLLER WITH SURROUND (5) LOUDNESS This IC built-in a center tap -type loudness circuit. A VOL input selector 0dB~ -16dB: 2dB step Tone & Surround block + - VSELB OUT1,2 17,26pin VOL IN1,2 18,25pin VOL OUT1,2 19,24pin B VOL input selector + - 0dB~ -28dB:2dB step -28dB~ -60dB:4dB step -61dB~ -64dB:1dB step LOUD1,2 11,32pin LOUDNESS SW LOUDNESS PART (6)Equivalent circuit of surround block 5k 5k Ch2 Out2 1k 5k 200k 1µ 10k external parts 5k 5k 200k Ch1 5k MITSUBISHI ELECTRIC Out1 5k ( 15 / 17 ) MITSUBISHI SOUND PROCESSORS M62498FP DIGITAL SOUND CONTROLLER WITH SURROUND APPLICATION EXAMPLE (1)Surround of outside setting(for Dolby-Pro-logic) <"D54=1"--->SW41, 42 setting = B fixation.> But, in case of this specification inside surround can not be used. Units Resistance:Ω Capacitance:F CLOCK 22 21 DATA 23 20 24 19 MAIN VOLUME2 -18~ -80dB,-∞dB 2.2µ 50k 25 18 26 17 2700p VOLUME SELECTOR B2 27 B 8200p 50k MAIN VOLUME1 -18~ -80dB,-∞dB A VOLUME SELECTOR B1 2.2µ 2700p 16 B A 28 15 8200p 29 14 7.5k 8200p 0.1µ 30 13 0.1µ 7.5k 0.1µ 31 12 7.5k 0.1µ 7.5k 8200p INOUT TONE SELECTOR 2 32 B 0.1µ A A INPUT TONE SELECTOR 1 B 11 0.1µ 33 10 10µ 34 100k 50k 50k MAIN VOLUME2 0~-16dB IC for Dolby-Plologic 35 REC-A2 36 100k 12k 9.5k 37 VOLUME SELECTOR A2 B REC-A SW REC-A SW D,E INPUT ATT SW 12k 100k REC-C SW REC-C SW 40 REC-B2 41 REC-B1 42 INPUT VOLUME2 E INPUT ATT SW 100k 200k 200k INPUT VOLUME1 100k E INPUT ATT SW 100k B B 6 5 4 3 100k A REC-B SW 51k A SW42 12k 9.5k 100k REC-A1 7 9.5k 50k 50k 100k SW41 12k D,E INPUT ATT SW 9.5k 38 39 IC for Dolby-Plologic 8 B A A 9 MAIN VOLUME1 0~-16dB VOLUME SELECTOR A1 10µ 100k REC-B SW REF Amp. 51k MITSUBISHI ELECTRIC 2 10µ 1 10µ ( 16 / 17 ) MITSUBISHI SOUND PROCESSORS M62498FP DIGITAL SOUND CONTROLLER WITH SURROUND (2)Surround of outside non setting(for Dolby-Pro-logic) <"D54=0"--->SW41, 42 setting = A fixation, Volume input selector A setting=A fixation.> Units Resistance:Ω Capacitance:F CLOCK 22 21 DATA 23 20 24 2.2µ 2700p MAIN VOLUME2 -18~ -80dB,-∞dB 19 MAIN VOLUME1 -18~ -80dB,-∞dB 50k 25 18 26 17 27 8200p 50k VOLUME SELECTOR B2 A B VOLUME SELECTOR B1 2.2µ 2700p 16 B A 8200p 28 15 29 14 0.1µ 30 13 0.1µ 7.5k 0.1µ 31 12 7.5k 0.1µ 7.5k 8200p 0.1µ 10µ REC-C2 INPUT TONE SELECTOR2 32 B A INPUT TONE SELECTOR1 B 11 33 10 100k 34 REC-A2 A 35 36 37 50k 50k MAIN VOLUME2 0~ -16dB 100k 12k 9.5k VOLUME SELECTOR A2 B B A REC-C SW REC-C SW D,E INPUT ATT SW MAIN VOLUME1 0~ -16dB VOLUME SELECTOR A1 A REC-A SW INPUT VOLUME2 100k 100k 1µ 42 200k INPUT VOLUME1 E INPUT ATT SW 100k 8 REC-A1 6 B B 4 100k E INPUT ATT SW 3 100k A REC-B SW 51k A SW42 REC-C1 5 50k 50k 200k 9 9.5k 40 41 10µ 7 9.5k 12k 100k SW41 0.1µ 12k 12k 38 1k 100k REC-A SW D,E INPUT ATT SW 9.5k 39 100k 7.5k 8200p REC-B SW REF Amp. 51k MITSUBISHI ELECTRIC 2 1 10µ 10µ ( 17 / 17 )