Pioneer GM-8537ZT-91/WL Service Manual Download Page 1

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ORDER NO.

CRT3058

PUB. NO.

CRT3058

AUDIO SYSTEM

POWER AMPLIFIER

Manufactured for TOYOTA

by PIONEER CORPORATION

VEHICLE

DESTINATION

PRODUCED AFTER

TOYOTA PART No.

ID No.

PIONEER MODEL No.

LEXUS LS430

Europe, Middle Near East,

August 2003

86280-50320

GM-8537ZT/WL

Australia, North America

86280-50330

GM-8537ZT-91/WL

General Area

LS430

Service
Manual

Summary of Contents for GM-8537ZT-91/WL

Page 1: ...ured for TOYOTA by PIONEER CORPORATION VEHICLE DESTINATION PRODUCED AFTER TOYOTA PART No ID No PIONEER MODEL No LEXUS LS430 Europe Middle Near East August 2003 86280 50320 GM 8537ZT WL Australia North America 86280 50330 GM 8537ZT 91 WL General Area LS430 Service Manual ...

Page 2: ...e safety and reliability of the product and may void the warranty If you are not qualified to perform the repair of this product properly and safely you should not risk trying to do so and refer the repair to a qualified service technician GM 8537ZT WL Supplementally model is identical to the original except for the addition of following items Non Spare Part Part No Description GM 8537ZT 91 WL Cov...

Page 3: ...ing screws To protect the product from damages or failures that may be caused during transit the shipping mode should be set or the shipping screws should be installed before shipping out in accordance with this manual if necessary 1 Product safety You should conform to the regulations governing the product safety radio and noise and other regulations and should keep the safety during servicing by...

Page 4: ...4 1 2 3 4 1 2 3 4 F E D C B A GM 8537ZT WL 2 EXPLODED VIEWS AND PARTS LIST 2 1 EXTERIOR ...

Page 5: ... Screw M3x6 CBA1393 23 Clamper CEF1034 24 Connector CN903 CKM1064 25 Connector CN901 CKM1363 26 Connector CN902 CKM1364 27 Plug CN801 CKS1036 28 Plug CN905 CKS4569 29 Plug CN906 CKS4569 30 Connector CN404 CKS4639 31 Holder CNC9893 32 Bracket CND1202 33 Holder CND1203 34 Sheet CNM7015 35 Fan Motor CXM1266 36 Screw IMS26P060FTC 37 IC IC701 711 721 PAL006A 38 IC IC852 BA178M05T NOTE Parts marked by a...

Page 6: ...N 18 FLO FLIN 21 WFO WFIN RLP RLM FLM FLP LIN RIN IN5 IN2 OUT5 OUT2 15 B A DSP UNIT AMP UNIT 5 5 22 PMUT STBY1 22 PMUT ASL1 SPD SPD Q753 11 8 SPD1 SPD1 SPEED PULSE SENSE 15 SPEED 6 TXH TXP MTX A D D A IC351 NJM4580MD FRONT LPF 3 1 OUT3 WFLP WFLM IC62C1024AL 70TI DACCSN DACCLK DACDTI SMUT PDN 1 IC271 TC7WU04F 7 X271 IC402 NJM4580MD Q401 MIC MIC401 VR401 3 8 IC401 NJM4580MD 5 8 ASL 7 7 3 4 2 1 C ASL...

Page 7: ...7 5 6 7 8 F E D C B A 5 6 7 8 GM 8537ZT WL ...

Page 8: ...AND PARTS LIST or ELECTRICAL PARTS LIST A a A B C AUDIO INPUT DIFFERENTIAL OPERATIONAL AMPLIFIER GAIN ADJUSTMENT SIGNAL INPUT OFF CIRCUIT TO SUDDEN DECREASE VOLTAGE OUTPUT OFFSET INDICATION OUTPUT OFFSET INDICATION OUTPUT OFFSET INDICATION AMP INPUT C ASL UNIT B AMP UNIT CD 8 2dBs 1kHz 0dB 8 1 2 3 4 1 2 3 4 F E D C B A GM 8537ZT WL 3 2 SCHEMATIC DIAGRAM GUIDE PAGE ...

Page 9: ...citor fixed values are expressed as 2 2 2R2 0 022 R022 Symbol indicates a resistor No differentiation is made between chip resistors and discrete resistors NOTE Symbol indicates a capacitor No differentiation is made between chip capacitors and discrete capacitors A DSP UNIT CD 28 8dBs 9 5 6 7 8 F E D C B A 5 6 7 8 GM 8537ZT WL ...

Page 10: ...A a A b A a A a A b C 1 2 3 C ASL UNIT 10 1 2 3 4 1 2 3 4 F E D C B A GM 8537ZT WL ...

Page 11: ... A a A b B B 4 5 6 7 8 9 10 AUDIO INPUT DIFFERENTIAL OPERATIONAL AMPLIFIER GAIN ADJUSTMENT SIGNAL INPUT OFF CIRCUIT TO SUDDEN DECREASE VOLTAGE OUTPUT OFFSET INDICATION OUTPUT OFFSET INDICATION OUTPUT OFFSET INDICATION AMP INPUT B AMP UNIT CD 8 2dBs 1kHz 0dB ...

Page 12: ...12 1 2 3 4 1 2 3 4 F E D C B A GM 8537ZT WL A a A b A b 1 2 3 A DSP UNIT ...

Page 13: ...SENSE FAN MOTOR CXM1266 Decimal points for resistor and capacitor fixed values are expressed as 2 2 2R2 0 022 R022 Symbol indicates a resistor No differentiation is made between chip resistors and discrete resistors NOTE Symbol indicates a capacitor No differentiation is made between chip capacitors and discrete capacitors CD 28 8dBs ...

Page 14: ...onnector P C Board Chip Part A A DSP UNIT SIDE B SIDE A NOTE FOR PCB DIAGRAMS 1 The parts mounted on this PCB include all necessary parts for several destination For further information for respective destinations be sure to check with the schematic dia gram 2 Viewpoint of PCB diagrams B CN906 ...

Page 15: ...15 5 6 7 8 F E D C B A 5 6 7 8 GM 8537ZT WL A SIDE A B CN905 ...

Page 16: ...16 1 2 3 4 1 2 3 4 F E D C B A GM 8537ZT WL A A DSP UNIT ...

Page 17: ...17 5 6 7 8 F E D C B A 5 6 7 8 GM 8537ZT WL A SIDE B ...

Page 18: ...18 1 2 3 4 1 2 3 4 F E D C B A GM 8537ZT WL 4 2 AMP UNIT B B AMP UNIT A CN101 FAN MOTOR ...

Page 19: ...19 5 6 7 8 F E D C B A 5 6 7 8 GM 8537ZT WL B SIDE A A CN102 C CN403 ...

Page 20: ...20 1 2 3 4 1 2 3 4 F E D C B A GM 8537ZT WL B B AMP UNIT ...

Page 21: ...21 5 6 7 8 F E D C B A 5 6 7 8 GM 8537ZT WL B SIDE B ...

Page 22: ...22 1 2 3 4 1 2 3 4 F E D C B A GM 8537ZT WL 4 3 ASL UNIT C C ASL UNIT C ASL UNIT SIDE A SIDE B B CN404 ...

Page 23: ... 16S472J R 117 RS1 16S102J R 118 RS1 16S103J R 119 RS1 16S102J R 120 RS1 16S103J R 121 RS1 16S102J R 122 RS1 16S472J R 123 RS1 16S473J R 124 RS1 16S473J R 125 RS1 16S473J R 126 RS1 16S473J R 127 RS1 16S102J R 128 RS1 16S473J R 129 RS1 16S473J R 130 RS1 16S473J R 133 RS1 16S0R0J R 157 RS1 16S102J R 158 RS1 16S473J R 159 RS1 16S102J R 160 RS1 16S102J R 161 RS1 16S102J R 162 RS1 16S102J R 163 RS1 16S...

Page 24: ...3 RS1 16S123J R 384 RS1 16S123J R 385 RS1 16S822J R 386 RS1 16S822J R 387 RS1 16S333J R 388 RS1 16S333J R 389 RS1 16S103J R 390 RS1 16S103J R 391 RS1 16S101J R 392 RS1 16S101J R 393 RS1 16S101J R 394 RS1 16S101J R 396 RS1 16S101J R 397 RS1 16S101J R 398 RS1 16S101J R 459 RS1 16S0R0J R 460 RS1 16S0R0J R 469 RS1 16S0R0J R 470 RS1 16S0R0J R 480 RS1 16S0R0J R 489 RS1 16S0R0J R 490 RS1 16S0R0J R 801 RS...

Page 25: ... CKSRYB104K16 C 593 CEVW1R0M50 C 594 CEVW100M16 C 595 CKSRYB473K50 C 596 CEVW2R2M50 C 801 CEVW101M16 C 802 CKSRYB102K50 C 811 CKSRYB103K50 C 812 CKSRYB103K50 C 821 CKSRYB103K50 C 822 CKSRYB103K50 C 831 CKSRYB103K50 C 901 CKSRYB102K50 C 902 CKSRYB102K50 C 903 CKSRYB102K50 C 904 CKSRYB102K50 C 906 CKSRYB102K50 Unit Number CWM8305 Unit Name ASL Unit MISCELLANEOUS IC 401 IC NJM4580MD IC 402 IC NJM4580...

Page 26: ...G50 D 855 Diode MPG06G 6415G50 D 881 Diode RM4LFJ10 D 882 Diode HZU12 B2 D 951 Diode UDZS18 B D 952 Diode UDZS18 B L 881 Choke Coil 260µH CTH1240 RESISTORS R 601 RS1 16S1002D R 602 RS1 16S1002D R 603 RS1 16S1002D R 604 RS1 16S1002D R 605 RS1 16S3901D R 606 RS1 16S3901D R 607 RS1 16S3901D R 608 RS1 16S3901D R 609 RS1 16S4702D R 610 RS1 16S4702D R 611 RS1 16S4702D R 612 RS1 16S4702D R 613 RS1 16S470...

Page 27: ...TNA224J50 C 713 CFTNA224J50 C 714 CFTNA224J50 C 715 CFTNA105J50 C 716 CEAT100M50 C 717 CEHAT221M25 C 718 CKSQYB104K25 C 719 CKSQYB104K25 C 721 CFTNA224J50 C 722 CFTNA224J50 C 723 CFTNA224J50 C 724 CFTNA224J50 C 725 CFTNA105J50 C 726 CEAT100M50 C 727 CEHAT221M25 C 728 CKSQYB104K25 C 729 CKSQYB104K25 C 731 CEAT3R3M50 C 751 CEAT1R0M50 C 752 CKSQYB224K25 C 753 CKSQYB103K50 C 755 CKSQYB473K50 C 756 CKS...

Page 28: ...28 1 2 3 4 1 2 3 4 F E D C B A GM 8537ZT WL 6 ADJUSTMENT Jigs When attaching the DSP unit to the AMP unit use Jigs GGD1245 GGD1245 ...

Page 29: ... 8P REAR CON GM 8537ZT WL Marklevinson AMP GEX T8037ZT EW HEAD UNIT FR FR 10P 20P 24P GGD1344 GGD1345 GGD1339 AUI AUI 20P 12P 8P 25P 8P 6P 18P 8P 6P Bullet connector ACC B ILL GND AUO AUO 26P 28P 6P 12P 10P 12P 5P Non connected For Head unit For Rear con For TV For TV For EMV Bullet connector B GND SP Line Bullet connector WFSP Line Bullet connector ACC B ILL GND To front right SP Non connected No...

Page 30: ...537ZT WL Marklevinson AMP GEX T8137ZT Q1 HEAD UNIT FR FR 10P 20P 24P GGD1344 GGD1345 GGD1339 AUI AUI 20P 12P 8P 25P 8P 6P 18P 8P 6P Bullet connector ACC B ILL GND AUO AUO 26P 28P 6P 12P 10P 12P 5P Non connected For Head unit For Rear con For TV For TV For EMV Bullet connector B GND SP Line Bullet connector WFSP Line Bullet connector ACC B ILL GND To front right SP Non connected Non connected Non c...

Page 31: ...M FM TUNER 8P REAR CON GM 8537ZT WL Marklevinson AMP GEX T8137ZT UC GEX XM UC FR FR 10P 20P 24P GGD1344 GGD1345 GGD1339 AUI AUI 20P 12P 8P 25P 8P 6P 18P 8P 6P Bullet connector ACC B ILL GND AUO AUO 26P 28P 6P 12P 10P 12P 5P Non connected For Head unit For Rear con For TV For TV For EMV Bullet connector B GND SP Line Bullet connector WFSP Line Bullet connector ACC B ILL GND To front right SP Non co...

Page 32: ...odel FX MG8687ZT ES Marklevinson AMP Model CD R8137ZT E 20P 12P 10P 24P AMP 20P 25P AM FM TUNER 8P REAR CON GEX T9006ZT ES HEAD UNIT FR FR GGD1344 GGD1345 24P GGD1340 20P 24P 10P 20P GGD1341 12P For XM TUNER Bullet connector ACC B ILL GND Bullet connector B GND SP Line Bullet connector WFSP Line Non connected 24P 20P 12P 25P 8P 20P GM 8537ZT WL Marklevinson AMP ...

Page 33: ...r AMP Model CD R8137ZT E 20P 12P 10P 24P AMP 20P 25P AM FM TUNER 8P REAR CON GM 8537ZT WL GEX T9006ZT 02 EW HEAD UNIT 20P 12P FR FR GGD1344 GGD1345 25P 8P 24P GGD1340 24P 20P 24P 10P 20P GGD1341 12P For XM TUNER Bullet connector ACC B ILL GND Bullet connector B GND SP Line Bullet connector WFSP Line Non connected 20P ...

Page 34: ...odel 20P 12P 12P 10P 24P 24P 10P AMP XM TUNER 20P 20P 25P AM FM TUNER 8P REAR CON GM 8537ZT WL Marklevinson AMP CD R8137ZT E GEX T8137ZT UC GEX M8087XMZT XN UC FR FR GGD1344 GGD1345 24P GGD1340 24P 20P 20P GGD1341 12P 20P 12P 25P 8P HEAD UNIT Bullet connector ACC B ILL GND Bullet connector B GND SP Line Bullet connector WFSP Line ...

Page 35: ...ve the four screws and then remove the Case Remove the three screws and then remove the Bracket Fig 1 Fig 2 DSP Unit 2 Removing the 86286 50040 Fig 1 Remove the three screws and then remove the 86286 50040 Case 3 3 3 3 2 2 2 1 1 86285 50110 86286 50040 1 1 1 Bracket 2 Removing the DSP Unit Fig 2 Straighten the tabs at seven locations indicated 2 2 2 2 2 2 2 3 3 3 3 3 Remove the four screws and the...

Page 36: ... as a lever Insert the tips into the upper side slits A in Rear View and get the bottom side of the Shield Push the tweezers down in the direction indicated by an arrow in Side View 2 Now one of the 18 pin connectors gets disconnected from the DSP Unit by doing 1 so that it becomes easier to detach the DSP Unit Lift and remove the DSP Unit and the Shield together Be careful not to give any stress ...

Page 37: ...Straighten the tab at location indicated Remove the four screws and then remove the Amp Unit Fig 3 Amp Unit Heat Sink 1 1 1 1 1 1 1 1 2 3 3 DSP UNIT Pawl bending and soldering points of the pawls for securing the base plate of a shielded case bot tom case The portion marked by is a point in which pawl bending and soldering are necessary ...

Page 38: ... C B A GM 8537ZT WL 7 1 2 CONNECTOR FUNCTION DESCRIPTION N MU CTR CTR SL SR SR SL MMUT MUTE AL RTX MTX RTX AR AL L R AR L R MTX SPD ACC FL FL FR FR B B2 RL RL FR GND RR FL FL RR E FR WFR WFL WFR WFL SGND TMUT A B C A B C SGND ...

Page 39: ... drst waveform stays at Low perform the 19 pin waveform observations and produce a decision The 19 pin DSPCHIP waveform during DSP error Keeping Hi continuously IC301 is defective Proper IC311 operation is not guaranteed though After making repairs on IC301 re perform the 67 pin drst waveform observations Keeping Hi continuously on the 67 pin drst waveform shows that DSP IC functions normally Keep...

Page 40: ...40 1 2 3 4 1 2 3 4 F E D C B A GM 8537ZT WL IC101 CN102 CN101 19pin DSPCHIP 67pin drst DSP UNIT SIDE A ...

Page 41: ...DSP 2 I F serial clock output 27 TESTIN I Test program input 28 TSOUT O Test serial data output 29 TSIN I Test serial data input 30 TSCK I Test serial clock input 31 SMUTEIN I System mute input 32 DACCSN O Codec control chip select output 33 DACCCLK O Codec control clock output 34 DACCDTI O Codec control data output 35 NAVMUTE I NAVI mute input 36 TELMUTE I TEL mute input 37 38 NC Not used 39 ROMD...

Page 42: ...nce Voltage S 812C56AUA C3K 1 3 2 A OUTPUT A INPUT A INPUT V B INPUT B INPUT B OUTPUT V 4 5 6 7 8 A B NJM4580MD A0 A16 ce oe we I O0 I O7 VCC GND Address input Chip enable input Output enable input Write enable input Input Output Power GND 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 A11 A9 A8 A13 we CE2 A15 VCC NC A16 A14 A12 A7 A6 A5 A4 32 31 30 29 28 17 16 15 14 13 22 21 20 19 18 17 oe A10 ce1 I O7 I...

Page 43: ...MODE I Slave Master mode select pin 22 JX I Outside condition pin 23 rq I Request pin for microcomputer interface 24 SCLK I Serial data clock pin for microcomputer interface 25 SI I Serial data input Serial data output control pin for microcomputer interface 26 DVSS Digital GND pin 0V 27 DVDD Digital Power supply pin 5V 28 SO O Serial data output pin for microcomputer interface 29 RDY O Data write...

Page 44: ...in 20 CAD0 I Chip address 0 pin 21 LOUT4 O DAC4 L channel analog output pin 22 ROUT4 O DAC4 R channel analog output pin 23 LOUT3 O DAC3 L channel analog output pin 24 ROUT3 O DAC3 R channel analog output pin 25 LOUT2 O DAC2 L channel analog output pin 26 ROUT2 O DAC2 R channel analog output pin 27 LOUT1 O DAC1 L channel analog output pin 28 ROUT1 O DAC1 R channel analog output pin 29 30 NC Not use...

Page 45: ...X MG9687ZT EW POWER SUPPLY B ACC BUS SIGNAL SOUND VISION RADIO TUNER GEX T8037ZT EW FR R H U PWR AMP RADIO TUNER B ACC 7SP REAR CONTROLLER REAR CONTROLLER CD R8137ZT E GEX T8037ZT EW MARK LEVINSON or GM 8537ZT WL MD CHANGER OTHER MAKERS DOP FX MG9087ZT EW FX MG9187ZT EW FX MG9587ZT EW FX MG9687ZT EW MARK LEVINSON or GM 8537ZT WL 7 3 EXPLANATION 7 3 1 SYSTEM BLOCK DIAGRAM ...

Page 46: ... UC FX MG9187ZT Q1 FX MG9687ZT Q1 POWER SUPPLY B ACC BUS SIGNAL SOUND VISION RADIO TUNER GEX T8137ZT UC GEX T8137ZT Q1 FR R H U PWR AMP RADIO TUNER B ACC 7SP REAR CONTROLLER REAR CONTROLLER CD R8137ZT E MARK LEVINSON or GM 8537ZT WL MARK LEVINSON or GM 8537ZT WL FX MG9187ZT UC FX MG9687ZT UC FX MG9187ZT Q1 FX MG9687ZT Q1 GEX T8137ZT UC GEX T8137ZT Q1 ...

Page 47: ...EX T8037ZT EW MD CHANGER OTHER MAKERS FX MG9087ZT EW FX MG9187ZT EW FX MG9587ZT EW FX MG9687ZT EW MARK LEVINSON or GM 8537ZT WL POWER SUPPLY B ACC BUS SIGNAL SOUND VISION H U PWR AMP RADIO TUNER B ACC 7SP MARK LEVINSON or GM 8537ZT WL FX MG9187ZT UC FX MG9687ZT UC FX MG9187ZT Q1 FX MG9687ZT Q1 GEX T8137ZT UC GEX T8137ZT Q1 ...

Page 48: ...Normal Error JUDGMENT System ON OFF OFF status System ON waiting Power ON Pin 66 H Mute ON Pin 40 H BEEP output available ON status System OFF waiting Power ON Pin 66 H Mute OFF Pin 40 L BEEP output available JUDGMENT DSP error confirmation communication error Serial IF JUDGMENT ACC Back up ON OFF START Hard ware reset cancel Main loop Error retry DSP reset Pin 67 About 1 second Error Communicatio...

Page 49: ...49 5 6 7 8 F E D C B A 5 6 7 8 GM 8537ZT WL 8 OPERATIONS There is no information to be shown in this chapter ...

Page 50: ...NEER ELECTRONICS USA INC P O Box 1760 Long Beach CA 90801 1760 U S A PIONEER EUROPE NV Haven 1087 Keetberglaan 1 9120 Melsele Belgium PIONEER ELECTRONICS ASIACENTRE PTE LTD 253 Alexandra Road 04 01 Singapore 159936 C PIONEER CORPORATION 2003 K ZZB JULY 2003 Printed in Japan ...

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