MITSUBISHI SOUND PROCESSORS M61504FP DIGITAL SOUND CONTROLLER WITH SURROUND DESCRIPTION The M61504FP is an optimum digital sound controller IC for home audio. It has a 4ch input selector, input volume, surround (3 variation), tone control (3 band), loudness, Vocal cut and 2ch master volume. It can control all of these function with serial data. FEATURES PACKAGE Built-in 4ch input selector. Built-in input volume (2dB step/3 bit) IC for Dolby-pro-logic Interface. Built-in Surround (ON/OFF,High/Middle/Low <3 variation>) Tone control (Bass/Mid/Treble) Built-in Loudness. Vocal cut (Surround OFF setting only) 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 MAIN VOLUME INPUT VOLUME Vocal cut IN A2 IN B2 IN C2 IN D2 TONE CONTROL MAIN VOLUME B1 A1 INPUT VOLUME VOL OUT1 & LOUDNESS 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 M61504FP 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 50k MAIN VOLUME 1 -18 to -80dB,-∞dB 50k VOL IN2 25 18 VOL IN1 VSELB OUT2 26 17 VSELB OUT1 TRE2 27 16 TRE1 VOLUME SELECT B1 VOLUME SELECT B2 A B A B MO2 28 15 MO1 MI2 29 14 MI1 BO2 30 13 BO1 BI2 31 12 BI1 11 LOUD1 10 VSELA OUT1 9 VSELA IN1 8 INVOL OUT1 7 NC 6 IN 1D 5 IN 1C 4 IN 1B 3 IN 1A 2 REF OUT 1 REF IN LOUD2 32 VSELA OUT2 33 VSELA IN2 34 TONE SELECT2 B 50k 100k 100k VCUT A 36 REC-A SW IN 2D 37 IN 2C 38 IN 2B 39 IN 2A 40 12k D INPUT ATT SW A TONE SELECT1 B 50k VCUT SW VOCAL CUT B A 100k 12k REC-A SW VCUT SW REC-B2/SUR1 41 REC-B1/SUR2 42 9.5k 50k 100k INPUT VOLUME 2 100k 200k A B D INPUT ATT SW 200k B 50k 100k INPUT VOLUME 1 100k D INPUT ATT SW 100k REC-B SW 25k A SW42 12k D INPUT ATT SW 9.5k 100k SW41 100k MAIN VOLUME1 0 to -16dB VOLUME SELECT A1 SURROUND MAIN VOLUME2 0to -16dB VOLUME SELECT A2 B INVOL OUT2 35 A REC-B SW REF Amp. 25k MITSUBISHI ELECTRIC ( 2 / 17 ) MITSUBISHI SOUND PROCESSORS M61504FP DIGITAL SOUND CONTROLLER WITH SURROUND PIN DESCRIPTION Pin No. 1 Function Symbol REF IN Input pin of reference Amp. REF OUT Output pin of the reference Amp. IN 1A,1B,1C,1D, 2A,2B,2C,2D Input pin of the input selector Ch1 and Ch2 INVOL OUT1,2 Output pin of the input volume 1 and 2 9,34 VSELA IN1,2 Input pin of the volume input selector A1 and A2 10,33 VSELA OUT1,2 11,32 LOUD1,2 Capacitor connection pin for the volume changing noise reduction Frequency characteristic setting pin in the loudness part 12,31 BI1,2 13,30 BO1,2 14,29 MI1,2 15,28 MO1,2 16,27 TRE1,2 Frequency characteristic setting pin in the tone control (Treble). 17,26 VSELB OUT1,2 Output pin of the volume input selector B1 and B2 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 36 VCUT 41 REC-B2/SUR1 42 REC-B1/SUR2 Capacitor for vocal cut Impedance (band filter) connection pin 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 7 NC Non connection 2 3,4,5,6, 37,38,39,40 8,35 Frequency characteristic setting pin in the tone control (Bass). Frequency characteristic setting pin in the tone control (Mid). MITSUBISHI ELECTRIC ( 3 / 17 ) MITSUBISHI SOUND PROCESSORS M61504FP DIGITAL SOUND CONTROLLER WITH SURROUND ABSOLUTE MAXIMUM RATINGS Symbol Conditions Parameter Limits Units VCC Supply voltage Pd Power dissipation K Thermal derating Topr Operating temperature -20 to +75 °C Tstg Storage temperature -40 to +125 °C 6.0 V Ta≤25°C 960 mW Ta>25°C 9.6 mW/°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 M61504FP DIGITAL SOUND CONTROLLER WITH SURROUND RECOMMENDED OPERATING CONDITION (Ta=25°C,unless otherwise noted) Parameter Symbol Supply voltage 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 M61504FP 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 (2) DO2 D12 D22 DO3 D13 D23 D61 D71 D81 D91 D32 D42 D33 D52 D62 D72 D82 D53 D63 D73 D83 D93 LOUD NESS SW B1 VOLUME CH2 A1 VOLUME CH 2 D92 INPUT D ATT SW B1 VOLUME CH 1 D43 DA1 DB1 DC DD DE DF 0 0 0 DA2 DB2 DC DD DE DF Note3) VOCAL CUT 1 0 0 DA3 DB3 DC DD DE DF D Input ATT SW 0 0 0 DD DE DF 1 0 TONE CONTROL BASS TONE CONTROL MID A1 VOLUME CH 1 (3) D51 (4) Tip address 0 TONE INPUT SELE CTOR 0 0 1 -5/-8dB 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 1 INPUT VOLUME INPUT SELECTOR SURROUN D OF INSIDE SETTING A B REC-A INPUT INPUT ON:1 VOLUME VOLUME SELECTOR SELECTOR OFF:0 1 0 Note3) SURROUND 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. Note2) In power supply investing to Mute an output in, It becomes setting like the following. Input selector = ALL OFF, Outside surround mode setting, REC-A,B SW=OFF,B1 main volume= - ∞ setting. The similar MUTE setting can be done by setting D34=D54=1. Note3) It is impossible to use the vocal cut and the inside surround function, First. it sets the vocal cut ON after setting the inside surround ON, in case of switching to the vocal cut ON setting from the inside surround ON setting. And it sets the inside surround ON after setting the vocal cut On, in case of switching to the inside surround ON setting from the vocal cut ON setting. MITSUBISHI ELECTRIC ( 6 / 17 ) MITSUBISHI SOUND PROCESSORS M61504FP 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 + 6dB 1 0 1 1 + 4dB 1 0 1 0 + 2dB 1 0 0 0dB 0 0 - 2dB 0 - 4dB - 6dB - 8dB OFF ON D14 D24 A ch 0 0 0 B ch 0 0 1 1 0 1 C ch D ch 0 0 1 1 0 0 E ch 0 0 1 0 0 1 0 0 0 1 1 0 1 0 0 D93 1 ALL OFF 0 0 1 1 1 (9) REC-A SWITCH REC-A OUTPUT (3)A VOL SELECTOR A VOL SELECTOR DB4 0 1 OFF ON D94 0 BYPASS 0 1 OUTSIDE SURROUND INPUT 1 (4)B VOL SELECTOR BVOL SELECTOR INPUT D04 (2)LOUDNESS LOUDNESS (8)INPUT SELECTOR (10)SURROUND Note) It is possible to control only at D54="0"setting. (5)TONE INPUT SELECTOR 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) D INPUT ATT SW (7) VOCAL CUT SW E INPUT ATT SW DA2 VOCAL CUT SW 0dB 0 OFF 0 -5/-8dB 1 ON 1 DB2 (8) D INPUT ATT SW D/E INPUT ATT SW -8dB -5dB DB3 0 1 INPUT VOLUME D64 D74 D84 0 dB -2 dB 0 0 0 0 0 1 -4 dB 0 1 0 -6 dB 0 1 1 0 -8 dB 1 0 -10 dB 1 0 1 -12 dB 1 1 0 -14 dB 1 1 1 Note:Do not input other data than the above. MITSUBISHI ELECTRIC ( 7 / 17 ) MITSUBISHI SOUND PROCESSORS M61504FP 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 D42 D52 D62 D72 D82 BACK STEP VOL. CH 2 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 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 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 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 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 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 MITSUBISHI ELECTRIC ( 8 / 17 ) MITSUBISHI SOUND PROCESSORS M61504FP 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 Maximum input Amplitude VIMtD Test condition 3~5pin,38~40pin Limits MIN TYP MAX 48 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% (Input pin to 6,37)Output pin to 19,24 RL=10Ω,THD=1% Units KΩ D,Ech ATT SW=-8dB,Input VOL=-2dB Maximum output Amplitude Gain VOMt Gvt THDA Total harmonic distention 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 M61504FP 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 Limits TYP MAX Units MIN Value of Boost(Bass) G(BASS)B f=100Hz Tone bass setting +8dB 6 8 10 dB Value of Cut(Bass) G(BASS)C f=100Hz Tone bass setting -8dB -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 boost condition +8,-8dB -2 0 +2 dB Balance between channels BALT MITSUBISHI ELECTRIC ( 10 / 17 ) MITSUBISHI SOUND PROCESSORS M61504FP 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 VSELB OUT1,2 VOL IN1,2 17,26pin 18,25pin Tone & Surround block A VOL input selector 0dB~ -16dB: 2dB step VSELA OUT1,2 17,26pin + - 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 4 input selector of 2ch and Input volume of 2ch for Input TRIMMER. The input selector D 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)The setting of ATT SW changes the input resistance of D input like the following. ATT -8dB of D input setting: 20kohm(TYP value) 0dB setting : 60kohm(TYP value) 100k B 100k C 0dB~ -14dB:2dB step 12k D 50k (0dB/-5dB) + - 25k 9.5k (0dB/-8dB) To volume input selector A D Input ATT SW Note2) At the time of input selector A~C, E or ALL OFF D input ATT SW becomes -8dB setting. MITSUBISHI ELECTRIC Note3)This SW is for the gain adjustment in 0 dB setting in the D input ATT. ( 11 / 17 ) MITSUBISHI SOUND PROCESSORS M61504FP DIGITAL SOUND CONTROLLER WITH SURROUND (3)Equivalent circuit of tone control 3-1Bass,Mid (Boost mode) IN OUT R3 R2 f0 = Q= C1 1 2π 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 f0 = Q= 1 2π R1(R2+R3)C1C2 R3 (Hz) C1C2R2 1 C1+C2 R1 C2 C1 R1 Gv = 20log R3 +2 R1 R2+R3 +2 R1 (Hz) (dB) MITSUBISHI ELECTRIC ( 12 / 17 ) MITSUBISHI SOUND PROCESSORS M61504FP 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 M61504FP DIGITAL SOUND CONTROLLER WITH SURROUND (4) Equivalent circuit of Vocal cut It removes the vocal cut from usual music source (the stereo). It centers on the vocal cut by the fixed rank, it is inputted to L,Rch in the same phase and the same amplitude. Therefore, it comes in the vocal cut by L-R setting. 20k CHANNEL 1 INPUT 20k 20k 20k VOCAL CUT OUTPUT 5k EXTERNAL Cv 5k CHANNEL 2 INPUT 20k Lowpass filter for Vocal cut Note1) Vocal cut output is monaural. Note2) In the setting which uses the vocal cut, the inside surround function can't be used. Note3) In setting of the vocal cut use, the output sometimes does a clip in the low area part, when inputting a signal above Vin=0.6Vrms. <CHARACTERISTIC CURVE> 180 It fixes (fo) of the low cut off frequency in 20KΩ of the inside resistance and Cv of the outside capacitor. It shows by the formula below. 0dB Gain (Vocal cut OFF setting) Gain (Vocal cut ON setting) -10dB Phase(Vocal cut OFF setting) fo=1/(2πx20kxC) Hz -20dB 0 -30dB C=0.68µF setting It becomes fo=1/(2πx20kx0.68µ)=12Hz Phase(Vocal cut ON setting) -40dB 12 100 1k 10k Frequency f(Hz) MITSUBISHI ELECTRIC ( 14 / 17 ) -180 MITSUBISHI SOUND PROCESSORS M61504FP DIGITAL SOUND CONTROLLER WITH SURROUND (5) LOUDNESS This IC built-in a center tap -type loudness circuit . 0dB~ -16dB: 2dB step A VOL input selector 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 + - Cl <Curve of characteristics> LOUDNESS PART 0dB It fixes (fo) of the loudness in 50KΩ of the inside resistance and Cl of the outside capacitor. It shows by the formula below. -10dB fo=1/(2πx50kxC) Hz -16dB C=0.1µF setting It becomes fo=1/(2πx50kx0.1µ)=32Hz -20dB fo=32 100 (6)Equivalent circuit of surround block 1k 10k Frequency f(Hz) 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 M61504FP 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 50k MAIN VOLUME1 -18~ -80dB,-∞dB 50k 25 18 26 17 2.2µ 2700p 27 B 6800p A VOLUME SELECTOR B2 2.2µ 2700p VOLUME SELECTOR B1 16 A B 28 15 6800p 29 14 10k 6800p 0.068µ 30 13 10k 0.068µ 31 12 10k 6800p INPUT TONE SELECTOR 2 32 B 0.1µ A A INPUT TONE SELECTOR 1 B 0.1µ 10 34 50k 100k IC for Dolby-Plologic 35 100k REC-A2 2.2µ 50k SURROUND MAIN VOLUME2 0~-16dB Volume input selector A2 B A VOCAL CUT 36 37 100k MAIN VOLUME1 0~-16dB Volume input B selector 100k A1 12k A REC-A SW REC-A SW D INPUT ATT SW 12k VCUT SW VCUT SW D INPUT ATT SW 9.5k 12k 40 REC-B2 41 9 IC for Dolby-Plologic 8 REC-A1 7 6 5 50k 50k 100k 100k 100k SW41 200k 100k INPUT VOLUME2 A B INPUT VOLUME1 D INPUT ATT SW REC-B SW 100k D INPUT ATT SW 4 3 100k 25k 2 A REC-B1 42 10µ 9.5k 38 39 10k 0.068µ 11 33 10µ 0.068µ SW42 200k B REC-B SW REF Amp. MITSUBISHI ELECTRIC 25k 1 10µ 10µ ( 16 / 17 ) MITSUBISHI SOUND PROCESSORS M61504FP DIGITAL SOUND CONTROLLER WITH SURROUND (2)Surround of outside setting(for Dolby-Pro-logic) <"D54=0"---> SW41, 42 setting = A fixation> Units Resistance:Ω Capacitance:F CLOCK 22 21 23 20 24 19 MAIN VOLUME2 -18~ -80dB,-∞dB 2.2µ 50k MAIN VOLUME2 -18~ -80dB,-∞dB 50k 25 18 26 17 VOLUME SELECTOR B2 2700p 27 B 6800p DATA VOLUME SELECTOR B1 A 2.2µ 2700p 16 A B 28 15 6800p 29 14 10k 6800p 0.068µ 30 13 10k 0.068µ 31 12 10k 6800p INPUT TONE SELECTOR2 32 B 0.1µ INPUT OF 10µ OUTSIDE SURROUND REC-A2 A INPUT TONE SELECTOR1 B 0.1µ 34 10 50k 100k B 100k 50k A 36 VOCAL CUT 12k D INPUT ATT SW B A REC-A SW VCUT SW D INPUT ATT SW VCUT SW 9.5k 12k 40 1k 41 1µ 9 OUTSIDE SURROUND 8 REC-A1 7 6 9.5k 38 39 5 50k 50k 100k INPUT VOLUME2 100k 100k SW41 200k D INPUT ATT SW 100k INPUT VOLUME1 100k D INPUT ATT SW 3 100k A B 4 REC-B SW 25k 2 A 42 10µ INPUT OF 100k 12k REC-A SW 37 100k MAIN VOLUME1 0~ -16dB VOLUME SELECTOR A1 SURROUND MAIN VOLUME2 0~ -16dB VOLUME SELECTOR A2 10k 0.068µ 11 33 35 2.2µ A 0.068µ SW42 200k B REC-B SW REF Amp. MITSUBISHI ELECTRIC 25k 1 10µ 10µ ( 17 / 17 )