Onkyo-TXSR55-avr-sm 电路图 维修手册.pdf

《Onkyo-TXSR55-avr-sm 电路图 维修手册.pdf》由会员分享，可在线阅读，更多相关《Onkyo-TXSR55-avr-sm 电路图 维修手册.pdf（123页珍藏版）》请在收音机爱好者资料库上搜索。

1、TX-SR55 SERVICE MANUALSERVICE MANUAL AV RECEIVER Black model MODEL TX-SR55 120V AC, 60HzBMDD Ref. No. 3855 122004 RC-591M SAFETY-RELATED COMPONENT WARNING! COMPONENTS IDENTIFIED BY MARK ON THE SCHEMATIC DIAGRAM AND IN THE PARTS LIST ARE CRITICAL FOR RISK OF FIRE AND ELECTRIC SHOCK. REPLACE THESE COM

2、PONENTS WITH ONKYO PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL. MAKE LEAKAGE-CURRENT OR RESISTANCE MEASUREMENTS TO DETERMINE THAT EXPOSED PARTS ARE ACCEPTABLY INSULATED FROM THE SUPPLY CIRCUIT BEFORE RETURNING THE APPLIANCE TO THE CUSTOMER. RadioFans.CN 收音机爱 好者资料库 TX-SR55 SPECIFICATIONS

3、Amplier Section Video Section Tuner Section FM AM General Video Inputs Video Outputs Audio Inputs Audio Outputs Other Jacks Specifications and features are subject to change without notice. Power Output (2 channels driven):85 W + 85 W (8 ,20Hz20kHz, FTC) 120 W +120 W (6 ,1kHz,DIN) 150 W + 150 W (6 ,

4、1kHz,JEITA) Dynamic Power220 W + 220 W (3 ,Front) 165 W + 165 W (4 ,Front) 100 W + 100 W (8 ,Front) THD (Total Harmonic Distortion) 0.08 % (Power Rated) Damping Factor60 (Front,1kHz,8 ) Input Sensitivity and Impedance 200 mV/ 47 k (LINE) Output Level and Impeadance 200 mV/ 470 (REC OUT) Frequency Re

5、sponse10 Hz100 kHz/ +1 dB-3 dB (Direct mode) Tone Control10 dB, 50 Hz (BASS) 10 dB, 10 kHz (TREBLE) SN Ratio106 dB (LINEIHF-A) Speaker Impedance 6 Input Sensitivity/Output Level and Impedance1 Vp-p /75 (Component and S-Video Y) 0.7 Vp-p /75 (Component Pb/Cb,Pr/Cr) 0.28 Vp-p /75 (S-Video C) 1 Vp-p /7

6、5 (Composite) Component Video Frequency Response5 Hz 50 MHz Tuning Frequency Range 87.5 MHz 107.9 MHz Usable SensitivityStereo:17.2 dBf 2 V(75 IHF) Mono: 11.2 dBf 1 V(75 IHF) S/N RatioStereo: 70 dB (IHF-A) Mono:76 dB (IHF-A) THDStereo: 0.3 % (1kHz) Mono:0.2 % (1kHz) Frequency Response30 Hz15 kHz / 1

7、 dB Stereo Separation45 dB ( 1kHz ) Tuning Frequency Range 530 kHz1700 kHz Usable Sensitivity30 V S/N Ratio40 dB THD0.70% Power SupplyAC 120 V, 60 Hz Power Comsumption6.7A Stand-by Power Comsumption1.0 W Dimensions(W x H x D) 483 W x 175 H x 430 D mm 19 W x 6-7/8 H x 16-15/16 D inches Weight14.5 kg

8、32.0 lbs Component Video Inputs 1,2,3 S-Video Compatible Jack Inputs DVD,VIDEO1,VIDEO2,VIDEO3, VIDEO4 A/V Inputs DVD,VIDEO1,VIDEO2,VIDEO3, VIDEO4 Component Video OutputOUT S-Video Compatible Jack Outputs MONITOR OUT,VIDEO1,VIDEO2 A/V Outputs MONITOR OUT,VIDEO1,VIDEO2 Digital InputsOptical : 3, 1 (Fr

9、ont Panel) Coaxial : 2 Analog InputsDVD(MULTICHANNEL),VIDEO1, VIDEO2,VIDEO3,VIDEO4,TAPE,CD Multichannel Inputs6 Digital Outputs1 (Optical ) Analog OutputsTAPE,VIDEO1,VIDEO2 Subwoofer Pre Outputs 1 Speaker Outputs9 Phones1 RS-232 Control1 IR Input/Output1 12V Trigger Out3 RadioFans.CN 收音机爱 好者资料库 2. T

10、o initialize the unit This device employs a microprocessor to perform various functions and operations. If interference generated by an external power supply, radio wave, or other electrical source results in accident which causes the specified operations and functions to operate abnormally. To perf

11、orm a result, please follow the procedure below. 1.Press and hold down the VIDEO-1 button, then press the STANDBY/ON button. 2.After CLEAR is displayed, the preset memory and each mode stored in the memory, such as surround, are initialized and will return to the factory setting. 3. Unplug the power

12、 supply cord. 3. Safety-check out (U.S.A. model only) After correcting the original service problem, perform the following safety check before releasing the set to the customer. Leakage Current Check Measure leakage current to a known earth ground(water pipe, conduit, etc.) by connecting a leakage c

13、urrent tester between the earth ground and exposed metal parts of the appliance (input/output terminals, screwheads,metal overlays, etc.). Plug the power supply cord directly into a 120V AC 60 Hz outlet and turn Standby switch on. Any current meausred must not exceed 0.5mA. 1. Replacing the fuses Th

14、is symbol located near the fuses indicates that the fuse used is fast operating type. For continued protection against fire hazard, replace with same type fuse. For fuse rating refer to the marking adjacent to the symbol. Ce symbole indique que le fusible utlise est a rapide. Pour une protection per

15、manente, nuntiliser que fusibles de meme type. Ce darnier est la qu le present symbol est appse. CIRCUIT NO. PART NO. DESCRIPTION F6901,F6902 252301 or12A-TUL-250V or 25219612A-UL/T-314,Fuse F901 25219910A-UL,Fuse F903 252164 or5A-UL/T-237 or 2522585A-T/UL-ST2,Fuse F9501 252160 or2.5A-UL/T-237 or 25

16、22542.5A-T/UL-ST2,Fuse TX-SR55 SERVICE PROCEDURES RadioFans.CN 收音机爱 好者资料库 A038 A039 U3 A033 A037 A070 U11 A187 A031 A059 A031 A046 A091 A031 A031 A036 A031 U33 A031 A031 A042 A031 A211 A031 A101 Q6050 Q6055 Q6064 Q6066 A031 Q6050A A151 A031 A031 A031 A031 T901 A070 A196 A057 E800 A056 A041 A018 A011

17、 A006 A001 A031 A176 A017 A026 A051 A206 A201 A196 A029 A050 A013 A206 A201 A216 A101 Q6050A A031 A031 A081 U2 U27 U36 U18 U21 U22 U12 U32 U26 U30 U31 U29 U6 U19 U5 U16 U17 U7 U13 U4 U1 P761 P7502 P6931 P7501 F903 F901 F9501 F6902 F6901 U14 U23 A016 A045 A021 A043 A161 A161 A161A189 A188 TX-SR55 EXP

18、LODED VIEW TX-SR55 A 1 2 3 4 BCDE TX-SR55 BLOCK DIAGRAM Amplifier section TAPE_OUT_R TAPE_OUT_L V2_OUT_L V2_OUT_R V1_OUT_L V1_OUT_R Z2_R Z2_L MIX_R MIX_L SOURCE_L SOURCE_R RECOUT_L RECOUT_R MCH_SR MCH_SL MCH_SW MCH_CT ADLT+ ADRT+ ADLT- ADRT- ADRT- ADRT+ ADLT+ ADLT- RX0 RX1 RX2 RX3 RX4 RX5 TX RX6 DAC

19、_FL DAC_CT DAC_SW DAC_FR DAC_SR DAC_SBR DAC_SBL DAC_SL VOLIN_SBR VOLIN_SBL MIC TUNER PACK VIDEO4 NJW1157 CD TAPE OUT TAPE IN VIDEO3 IN VIDEO2 OUT VIDEO2 IN VIDEO1 OUT VIDEO1 IN DVD MSL/MSR MC/MSW COAX 1 COAX 2 Digital Input OPT FRNT OPT1 OPT2 OPT3 OPT Digital Output -6dB -6dB +9.7dB TC9162 DIR 2ch A

20、DC CS42518 8ch DAC +6dB VLSCLPF TONE TONE MIC AMP +6dB +6dB VLSCLPF +6dB VLSCLPF +6dB VLSCLPF LPFVLSC VLSCLPF 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 73 73 51 74 41 43 23 25 22 24 26 21 27 29 28 30 44 42 46 45 48 47 93 92 91 95 90 89 88 86 85 84 83 87 82 81 80 94 9 8 12 17 10 19

21、20 21 11 18 4 25 3 26 2 27 22 7 23 6 5 24 16 15 14 13 49 48 43 42 47 46 45 44 50 37 36 17 19 35 34 32 33 31 30 28 29 26 27 + + A A A A A 1 2 3 4 5 BCD TX-SR55 BLOCK DIAGRAM Amplifier section Z2RL SBRL HPRL HPIN FRL CSRL FL_PO FR_PO CT_PO SBL_PO SBR_PO SW_PO SL_PO SR_PO SBMUT Z2LMUT AMUT Z2SW_PO Z2L_

22、PO Z2R_PO DC24 in for A-BUS 40k IR in1 for A-BUS 40k IR in2 for A-BUS 56k IR OUT for A-BUS 12V TRIGGER A 12V TRIGGER B 12V TRIGGER C IR IN IR OUT RJ-45 for A-BUS RIex RS-232C 12V TRIDDER CONTROL IR 56k RE-MODULATOR IR DE-MODULATOR IR DE-MODULATOR RI INTERFACE INTERFACE RS-232C SW POWER AMPLIFIER +29

23、dB +29dB +29dB +29dB +29dB +29dB +29dB PREOUT FRONT LEFT FRONT RIGHT CENTER SURR. LEFT SURR. RIGHT HEADPHONES ZONE2 LEFT ZONE2 RIGHT SUUR. BACK LEFT SUUR. BACK RIGHT SPEAKER TERMINALS R L SW TONE TONE +6dBZONE2 +20.2dB TONE TONE DSPSD_RAM IC42S16100 2M Byte CS494003 FLASH ROM MX29LV040 2M Bit LPFVLS

24、C +6dB VLSCLPF +6dB VLSCLPF +6dB ZONE2 PREOUT/LINEOUT BD3814 7 6 5 4 3 2 1 8 107 118 106 81 80 86 134 109 110 58 54 63 62 64 1 26 27 21 20 22 23 27 28 A A A 1 2 3 4 5 BCD TX-SR55 BLOCK DIAGRAM Video section VIDEO1 DVD VIDEO2 VIDEO3 VIDEO4 S VIDEO INPUT DVD VIDEO1 VIDEO2 VIDEO3 VIDEO4 YC YC YC YC YC

25、COMPOSITE VIDEO INPUT COMPONENT VIDEO INPUT Y1 CB1 CR1 Y2 CB2 CR2 Y3 CB3 CR3 NJM2595 Y NJM2595 NJM2595 C OSD LC74763-9836 DACA DACB DACC DACD DACE DACF AIN2 AIN1 AIN3 AIN4 AIN5 OSD*(SDET+SI) SDET*OSD+(OSD*SI) SDET*OSD+(OSD*SI) SDET*OSD C2 DIGITAL VIDEO ENCOD ADV7172 DIGITAL VIDEO DECODER ADV7183A Y1

26、 COMPOSITE C1 COMPOSITE / Y2 6dB 6dB 6dB 6dB 6dB 6dB 6dB 6dB 6dB 0dB 0dB -6dB -6dB -6dB -6dB A 1 2 3 4 5 BCD TX-SR55 BLOCK DIAGRAM Video section COMPONENT VIDEO OUTPUT Y CB CR A B COMPOSITE VIDEO OUTPUT MONITOR VIDEO1 VIDEO2 VIDEO2 CY CY VIDEO1 CY MONITOR V Y C CB CR Y DACA DACB DACC DACD DACE DACF

27、LA7106M S VIDEO OUTPUT SDET*OSD SDET*OSD SDET*OSD+(OSD*SI) LA7106M SDET*OSD+(OSD*SI) SDET*OSD+(OSD*SI) SDET*OSD+(OSD*SI) ENCODER 72 6dB 6dB 6dB 6dB 6dB 6dB A 1 2 3 4 5 BCD TX-SR55 BLOCK DIAGRAM A 1 2 3 4 5 BCDEFGH Z2RL SBRL HPRL HPIN FRL CSRL FL_PO FR_PO CT_PO SBL_PO SBR_PO SW_PO SL_PO SR_PO TAPE_OU

28、T_R TAPE_OUT_L V2_OUT_L V2_OUT_R V1_OUT_L V1_OUT_R Z2_R Z2_L MIX_R MIX_L SOURCE_L SOURCE_R RECOUT_L RECOUT_R MCH_SR MCH_SL MCH_SW MCH_CT ADLT+ ADRT+ ADLT- ADRT- ADRT- ADRT+ ADLT+ ADLT- RX0 RX1 RX2 RX3 RX4 RX5 TX RX6 DAC_FL DAC_CT DAC_SW DAC_FR SBMUT Z2LMUT AMUT DAC_SR DAC_SBR DAC_SBL DAC_SL Z2L_PO Z

29、2R_PO VOLIN_SBR VOLIN_SBL MIC TUNER PACK VIDEO4 NJW1157 CD TAPE OUT TAPE IN VIDEO3 IN VIDEO2 OUT VIDEO2 IN VIDEO1 OUT VIDEO1 IN DVD DC24 in for MSL/MSR A-BUS 40k IR in1 for A-BUS MC/MSW 40k IR in2 for A-BUS 56k IR OUT for A-BUS COAX 1 COAX 2 Digital Input OPT FRNT OPT1 OPT2 OPT3 OPT Digital Output 1

30、2V TRIGGER A 12V TRIGGER B 12V TRIGGER C IR IN IR OUT RJ-45 for A-BUS RIex RS-232C 12V TRIDDER CONTROL IR 56k RE-MODULATOR IR DE-MODULATOR IR DE-MODULATOR RI INTERFACE INTERFACE RS-232C SW POWER AMPLIFIER +29dB +29dB +29dB +29dB +29dB +29dB +29dB PREOUT FRONT LEFT FRONT RIGHT CENTER SURR. LEFT SURR.

31、 RIGHT HEADPHONES ZONE2 LEFT ZONE2 RIGHT SUUR. BACK LEFT SUUR. BACK RIGHT SPEAKER TERMINALS R L TONE TONE +6dBZONE2 -6dB -6dB +9.7dB +20.2dB TC9162 DIR 2ch ADC CS42518 8ch DAC +6dB VLSCLPF TONE TONE MIC AMP DSPSD_RAM IC42S16100 2M Byte CS494003 FLASH ROM MX29LV040 2M Bit +6dB +6dB VLSCLPF +6dB VLSCL

32、PF +6dB VLSCLPF LPFVLSC +6dB VLSCLPF +6dB VLSCLPF VLSCLPF +6dB ZONE2 PREOUT/LINEOUT BD3814 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 73 73 51 74 41 43 23 25 22 24 26 21 27 29 28 30 44 42 46 45 48 47 93 92 91 95 90 89 88 86 85 84 83 87 82 81 80 7 6 5 4 3 2 1 94 8 9 8 12 17 10 19 20

33、21 11 18 4 25 3 26 2 27 22 7 23 6 5 24 16 15 14 13 49 48 43 42 47 46 45 44 50 37 36 17 19 107 118 106 81 80 86 134 109 110 58 54 63 62 64 1 35 34 32 33 31 30 28 29 26 27 21 20 22 23 27 28 + + A A A A TX-SR55 BLOCK DIAGRAM Video section A 1 2 3 4 5 BCDEFGH VIDEO1 DVD VIDEO2 VIDEO3 VIDEO4 S VIDEO INPU

34、T DVD VIDEO1 VIDEO2 VIDEO3 VIDEO4 YC YC YC YC YC COMPOSITE VIDEO INPUT COMPONENT VIDEO INPUT Y1 CB1 CR1 Y2 CB2 CR2 Y3 CB3 CR3 COMPONENT VIDEO OUTPUT Y CB CR A B NJM2595 Y NJM2595 NJM2595 C COMPOSITE VIDEO OUTPUT MONITOR VIDEO1 VIDEO2 VIDEO2 CY CY VIDEO1 CY MONITOR OSD LC74763-9836 V Y C CB CR Y DACA

35、 DACB DACC DACD DACE DACF AIN2 AIN1 AIN3 AIN4 AIN5 LA7106M S VIDEO OUTPUT SDET*OSD OSD*(SDET+SI) SDET*OSD+(OSD*SI) SDET*OSD+(OSD*SI) SDET*OSD SDET*OSD+(OSD*SI) SDET*OSD LA7106M SDET*OSD+(OSD*SI) SDET*OSD+(OSD*SI) SDET*OSD+(OSD*SI) C2 DIGITAL VIDEO ENCODER ADV7172 DIGITAL VIDEO DECODER ADV7183A Y1 CO

36、MPOSITE C1 COMPOSITE / Y2 6dB 6dB 6dB 6dB 6dB 6dB 6dB 6dB 6dB 0dB 0dB -6dB -6dB -6dB -6dB 6dB 6dB 6dB 6dB 6dB 6dB TX-SR55 SCHEMATIC DIAGRAM 1 Preamplifier section +12VA DAC_FR MIX_R -12VA MIX_L PZ2_L PZ2_R VIN_LDAC_SBL/Z2L DAC_FR DAC_SBR/Z2R FSWSTBFSWDAT FSWCLK AIN_L AIN_R DAC_FL DAC_FL VAI_L VAI_R

37、VIN_R Z2TONE_RI Z2TONE_LI ADRT+ ADRT- ADLT+ ADLT- AIN_L MSR MCT MSL MSW SW_VO V4_R V4_L MIC_L AIN_R VLTNSTB VLTNCLK VLTNDAT TUP_L TUP_R Z2TONE_LI Z2TONE_RI FSWCLK FSWDAT FSWSTB Z2BDDAT Z2BDCLK Z2BDMUT VLTNSTB VLTNCLK VLTNDAT APOWER SPRLF SPRLCS SPRLSB FANCTR SPRLZ2 SOURCE_L SOURCE_R REC_L REC_R TU_L

38、 TU_R DSPRST DSPCS DSPFCS DSPINT DSPFINT DIGCLK DIGSDI DIGSDO DIRINT DIRSDI DIRCS DIRRST ADCRST V3_L V3_R V1_LI V1_RI DVD_R DVD_L V2_RI V2_LI TA_RI TA_LI CD_R CD_L DVD_L V1_LI DVD_R V1_RI MSW MSL MSR MCT TA_LO TA_RO V2_RO V2_LO TA_LI TA_RI V1_RO V1_LO V2_LI V2_RI V3_R V3_L PH_L PH_R SW_PO FL_PO FR_P

39、O SBR_PO SBL_PO CT_PO SL_PO SR_PO CD_L CD_R V4_L V4_R MIC_L VIN_R DAC_CT VIN_L DAC_SR DAC_SL DAC_SW VIN_SBR VIN_SBL DSP Section TAPE OUT VIDEO2 OUT VIDEO3 IN TAPE IN VIDEO2 IN VIDEO1 OUT VIDEO1 IN DVD MSL/MSR MC/MSW SCH. 2 TO NAVD-8409(SCH. 7)TO NADG-8366 (SCH. 9) CD NAAR-8365-1(1) Front R374 470 R3

40、76 10K R37710K R37910K R373 470 R375 10K C38447/16 + C38347/16 + R4370 R371 1.2K R372 1.2K R378 10K R380 10K C381330J C358 4.7/50 + C352 104Z C355 4.7/50 + C365 104Z C366 47/16 + C368 47/16 + C36747/16 + C369 47/16 + C370 47/16 + C371 47/16 + C372 47/16+ C373 47/16+ C374 10/16 + C379 10/16 + C380 1/

41、50 + C375 10/16 + R438 0 Q304 79L07 3 O 2 I 1 G Q305 TC9162 1VSS 2 3 4 5 6 7 8 9 10 11 12 13STB 14GND15 CLK 16 DATA 17 COM4 18 S7 19 COM3 20 S6 21 S5 22 COM2 23 S4 24 S3 25 COM1 26 S2 27 S1 28 VDD Q306:A NJM4565M-D 7 4 5 6 8 Q306:B NJM4565M-D 1 2 3 C329 221J C330 221J C323 221J C324 221J C325 221J C

42、326 221J C327 221J C328 221J C313 221J C314 221J C315 221J C316 221J C319 221J C320 221J R324 330 R323 330 R322 330 R321 330 R320 330 R319 330 R318 330 R317 330 R316 330 R315 330 R313 330 R330 56K R329 56K R305 330 R306 330 C304 104Z C303 104Z R339 56K R314 330 R311 330 R312 330 R309 330 R310 330 R3

43、07 330 R308 330 C305 104Z R348 56K R347 56K R346 56K R345 56K P303 9 7 8 6 4 5 3 1 2 10 P304 9 7 8 6 4 5 3 1 2 10 C412 10/16 C411 10/16 C431 47/16 + C432 47/16 + R4340 R4330 Q421 BD3814 1 2 3 4AGND1 5 6 7 8AGND2 9INSW 10AGND3 11INSR 12AGND4 13INSL 14AGND5 15INC 16AGND6 17INFR 18AGND7 19INFL 20VEE -+

44、 -+ TREBLE BASS LOGIC P305 9 7 8 6 4 5 3 1 2 10 C376 10/16 + C377 10/16+ C356224J C357472J 9 10 11 12 13 14 15 16 17 18 Q303 78L07 1 O 2 G 3 I C353 220/16 + C354 220/16 + C351 104Z P351A 13 12 11 10 9 8 7 6 5 4 3 2 1 P352A 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 R336 56K R335 56K R340 56K

45、 C309 221J C310 221J R303 330 R304 330 C301 104Z 6 4 5 3 1 2 P302 4 P2501A 1 2 3 4 5 6 7 C359224J C360472J C364104Z C382330J Q302 NJW1157 51L1IN 52R1IN 53L2IN 54R2IN 55L3IN 56R3IN 57L4IN 58R4IN 59L5IN 60R5IN 61L6IN 62R6IN 63L7IN 64R7IN 65L8IN 66R8IN 67L9IN 68R9IN 69L10IN 70R10IN 71L11IN 72R11IN 73L1

46、2IN 74R12IN 75NC 76DGND 77DATA 78CLOCK 79LATCH 80LAIN 81RAIN 82CAIN 83LSAIN 84RSAIN 85LBAIN 86RBAIN 87SWAIN 88LBIN 89RBIN 90CBIN 91LSBIN 92RSBIN 93LBBIN 94RBBIN 95SWBIN 96GND 97GND 98VSS2 99VDD2 100TCCAP 1 LOUT 2 ROUT 3 COUT 4 LSOUT 5 RSOUT 6 LBOUT 7 RBOUT 8 SWOUT 9 DC_L1 10 DC_L2 11 FIL_BL 12 FIL_T

47、L 13 DC_R1 14 DC_R2 15 FIL_BR 16 FIL_TR 17 NC 18 NC 19 V+ 20 V- 21 REC_A1L 22 REC_A1R 23 REC_A2L 24 REC_A2R 25 REC_A3L 26 REC_A3R 27 REC_B1L 28 REC_B1R 29 REC_B2L 30 REC_B2R 31 DCCAP_L 32 DCCAP_R 33 DCCAP_C 34 GND 35 GND 36 DCCAP_LS 37 DCCAP_RS 38 DCCAP_LB 39 DCCAP_RB 40 DCCAP_SW 41 DCL_OUT 42 DCL_I

48、N 43 DCR_OUT 44 DCR_IN 45 FL+ 46 FL- 47 FR+ 48 FR- 49 VDD 50 VSS C378 10/16 + C42110/16 + C422 10/16 + C423 10/16 + C42410/16 + C427 10/16+ C428 10/16 +C425 10/16 + C426 10/16 + -7V +7V V4E V4E U1 A 1 2 3 4 5 BCD TX-SR55 SCHEMATIC DIAGRAM 1 DAC_FR DAC_FL DAC_SBR DAC_SBL +12VA -12VA GND SBR_VO CT_VO

49、SL_VO SR_VO SBL_VO +5VDSP APOWER SPRLF SPRLCS SPRLSB Z2LPMUTD SBZ2MUTD FANH VPOWER SYSIN THERMAL FANCTR SPRLZ2 AMUTD PROTECT SYSIN +56S TRG12V +13S SEC1H FL_PO FR_PO SBL_PO SBR_PO CT_PO SL_PO SR_PO TRG12V GND +24V -24V +56S DAC_CT DAC_SL DAC_SW DAC_SR MCT MSL MSR MSW Z2BDMUT Z2BDDAT Z2BDCLK VPOWER AMUTD SBZ2MUTD Z2LPMUTD THERMAL SPRLCS PROTECT SPRLF VOLH SPRLSB SPRLZ2 SEC1H APOWER VOLH DSPBUSY VIDEO+5V VIDEO-5V +12VA -12VA FL_VO FR_VO DSP Section PURE AUDIO SCH. 2 ZONE2 LINE/PREOUT SCH. 2 DSP Section RI TO NAAF-8383 (SCH. 3) TO