Pioneer FX-MG8606ZT-91/UC Service Manual Download

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FX-MG8606ZT,MG8606ZT-91,MG8706ZT,MG8706ZT-91

RFO

0.5V/div. 0.2

s/div.

Normal mode: play

CH1: RFO

1V/div.

CH2: MIRR

5V/div.

Test mode: Tracking open

0.5ms/div.

CH1: RFO

1V/div.

CH2: MIRR

5V/div.

Normal mode: The defect part

passes 500µs/div.

0.5ms/div.

CH1: FIN

0.5V/div.

CH2: FOP

2V/div.

Test mode: No disc, Focus close

0.2s/div.

CH1: FIN

0.5V/div.

CH2: FOK

2V/div.

Normal mode: Focus close

0.2s/div.

CH1: FEY

0.5V/div.

CH2: XSI

2V/div.

Normal mode: Focus close

1ms/div.

CH1: TEY

0.5V/div.

CH2: TIN

0.5V/div.

Test mode: 32 tracks jump (FWD)

0.5ms/div.

CH1: TEY

0.5V/div.

CH2: TIN

0.5V/div.

Test mode: Single jump (FWD)

0.5ms/div.

CH1: FEY

0.1V/div.

CH2: FIN

0.2V/div.

Normal mode: Play

20ms/div.

CH1: FIN

0.5V/div.

CH2: SIN

1V/div.

Normal mode: Focus close

0.5s/div.

GND

→

GND

→

GND

→

GND

→

Waveforms

SIN

0.5V/div.

0.1s/div.

Normal mode: Play

REFOUT

→

REFOUT

→

REFOUT

→

REFOUT

→

REFOUT

→

REFOUT

→

REFOUT

→

REFOUT

→

REFOUT

→

REFOUT

→

REFOUT

→

REFOUT

→

REFOUT

→

REFOUT

→

REFOUT

→

REFOUT

→

RFO

0.5V/div. 0.5

s/div.

Test mode

REFOUT

→

REFOUT

→

REFOUT

→

Note:1. The encircled numbers denote measuring pointes in the circuit diagram.

2. Reference voltage

REFOUT:2.5V

Summary of Contents for FX-MG8606ZT-91/UC

Page 1: ...OTA PART No ID No PIONEER MODEL No LEXUS LX470 U S A CANADA August 2000 86120 60290 P6808 FX MG8606ZT UC LEXUS LX470 U S A CANADA August 2000 86120 60290 P6808 FX MG8606ZT 91 UC LEXUS LX470 U S A CANADA August 2000 86120 60420 P6809 FX MG8706ZT UC LEXUS LX470 U S A CANADA August 2000 86120 60420 P6809 FX MG8706ZT 91 UC LX470 Service Manual ...

Page 2: ...No P6808 ID No P6809 This service manual should be used together with the following manual s Model No Order No Mech Module Remarks CX 631 CRT1640 2L Cassette Mech Module Mech Description Disassembly CX 890 CRT2376 G1 CD Mech Module Circuit Description Mech Description Disassembly CONTENTS 1 SAFETY INFORMATION 4 2 EXPLODED VIEWS AND PARTS LIST 5 3 BLOCK DIAGRAM AND SCHEMATIC DIAGRAM 12 4 PCB CONNEC...

Page 3: ...otection by a short pin 3 During disassembly be sure to turn the power off since an internal IC might be destroyed when a con nector is plugged or unplugged 4 Please checking the grating after changing the ser vice pickup unit see page 74 When the Repair is Complete When the repair is complete make the CD mechanism ready for transportation Bup On Acc OFF SEEK TRACK UP DISC CD Acc ON Display Displa...

Page 4: ... test equipment and tools and have been trained to properly and safely repair complex products such as those covered by this manual Improperly performed repairs can adversely affect the 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 quali...

Page 5: ...5 FX MG8606ZT MG8606ZT 91 MG8706ZT MG8706ZT 91 2 EXPLODED VIEWS AND PARTS LIST 2 1 EXTERIOR ...

Page 6: ...tor CNV6261 51 Lighting Conductor CNV6281 52 Lighting Conductor CNV6282 53 Keyboard Unit CWS1334 54 LCD LCD901 CAW1595 55 Connector CN902 CKS4361 56 Holder CNC8805 57 Spacer CNM6968 58 Lighting Conductor CNV6199 59 Rubber CNV6200 60 Connector CNV6428 61 Knob Unit CXB5578 62 Grille Unit FX MG8606ZT UC CXB6484 62 Grille Unit FX MG8706ZT UC CXB6485 63 Screw BPZ20P080FMC 64 Door CAT2186 65 Washer CBF1...

Page 7: ...7 FX MG8606ZT MG8606ZT 91 MG8706ZT MG8706ZT 91 2 2 CD MECHANISM ...

Page 8: ...LA3469 54 Shaft CLA3693 55 Steer CNC7215 56 Steer CNC7216 57 Cam CNC8774 58 Holder CNC7235 59 Gear CNC7236 60 Gear CNC8883 61 Lever CNC7243 62 Lever CNC7244 63 Lever CNC7245 64 Lever CXB4944 65 Cover CNC7441 66 Holder Unit CXB4946 67 Lever CNC9088 68 Gear CNC8140 69 Sheet CNM6840 70 PCB CNP5764 71 PCB CNP6010 72 Gear CNR1479 73 Gear CNR1481 74 Gear CNR1495 75 Gear CNR1501 76 Gear CNR1502 77 Gear C...

Page 9: ...y CXB3171 158 Loading Arm L Assy Service CXX1415 159 Screw CBA1453 160 Washer CBF1038 161 Loading Arm R Assy Service CXX1457 162 Washer CBF1074 163 Spring CBH2136 164 Arm CNC7241 165 Arm CXB4449 166 Holder CBL1508 167 Belt CNT1079 168 Holder CNV5055 169 Pulley CNV5057 170 Roller CNV6209 171 Guide CNV5125 172 Bracket Unit CXB5937 173 Roller Gear Unit CXB3176 174 Motor Unit M2 LOAD CXB3177 175 Screw...

Page 10: ...10 FX MG8606ZT MG8606ZT 91 MG8706ZT MG8706ZT 91 2 4 CASSETTE MECHANISM MODULE ...

Page 11: ...NC1516 27 Lever ENC1448 28 Arm ENC1488 29 Roller ENR1023 30 Belt ENT1027 31 Gear ENV1347 32 Collar ENV1508 33 Gear ENV1350 34 Flywheel ENV1500 35 Worm Gear ENV1439 36 Worm Wheel ENV1440 37 Gear ENR1037 38 Lever ENV1533 39 Arm ENV1525 40 Gathering PCB ENX1037 41 Gathering PCB ENX1060 42 Switch S1 S2 ESG1004 43 Motor Unit M2 SUB EXA1382 44 Chassis Unit EXA1559 45 Tube ENM1039 46 Roller ENR1027 47 Re...

Page 12: ...7 CLAMP ELEVATION SENSE V 5V 5 14 15 4 3 1 2 3 4 8 5 6 7 10 11 1 1 1 1 2 3 4 1 2 4 1 2 1 1 2 3 5 6 3 4 2 1 5 6 3 4 2 1 5 7 3 4 2 1 7 5 9 8 10 11 10 2 11 1 19 28 29 30 19 28 29 30 45 44 46 42 8 9 43 42 35 39 10 1 50 49 48 6 7 11 4 5 2 3 47 46 45 12 44 43 9 16 56 13 27 53 26 79 17 2 18 62 61 75 60 59 58 57 78 77 76 55 6 5 72 69 12 41 50 1 2 3 45 44 40 47 46 49 48 4 5 6 39 7 8 36 35 37 32 33 39 41 41...

Page 13: ...SYSPW ILL CILL 9 9 SYSPW VDD Q820 Q822 Q823 49 CDILL 61 ILL L L MUTE ILL ACC ILL TX TX B BU CN801 ACC MUTE CN803 TXM TXM B FUSE 5A AVC LAN BUS DRIVER BALANCE TO UNBALANCE CONVERTER IC602 HA12187FP 6 IC305 TC74HC4066AF ANALOG SWITCH 4 3 1 2 BU AVC LAN MUTE Q801 ISENS Q805 BSENS Q806 ASENS Q807 ILL Q825 5 BU L L Q812 Q814 4 LAMP Q802 Q809 Q815 CD9V 8R5V CD9V VDCONT SW5V Q401 Q402 Q405 2 2 19 ldet 67...

Page 14: ...Hz 26 9dBs AM 30 400Hz 16 0dBs FM AM CD TAPE 46 9dBs 18 6dBs 1 8dBs 8 24dBs FM AM CD TAPE 17 0dBs 18 6dBs 3 3dBs 5 1dBs MAIN ANTENNA SUB ANTENNA 1 4 2 5 6 3 4 1 5 2 3 6 1 4 2 5 3 1 4 2 5 3 1 4 2 1 6 2 5 3 4 1 4 2 5 6 3 6 3 2 5 1 4 1 4 2 5 3 1 4 2 5 3 1 4 2 5 3 2 1 1 2 A A a A a A b A b A a A b A b A a Large size SCH diagram Guide page Detailed page A a 3 2 OVERALL CONNECTION DIAGRAM GUIDE PAGE Not...

Page 15: ...stor and capacitor fixed values are expressed as 2 2 2R2 0 022 R022 The mark found on some component parts indicates the importance of the safety factor of the part Therefore when replacing be sure to use parts of identical designation Symbol indicates a resistor No differentiation is made between chip resistors and discrete resistors NOTE Symbol indicates a capacitor No differentiation is made be...

Page 16: ... FM FM FM AM AM FM AM FM AM FM AM FM AM FM AM FM AM FM 30 400Hz 26 9dBs AM 30 400Hz 16 0dBs FM AM CD TAPE 46 9dBs 18 6dBs 1 8dBs 8 24dBs FM AM CD TAPE 17 0dBs 18 6dBs 3 3dBs 5 1dBs MAIN ANTENNA SUB ANTENNA 1 4 2 5 6 3 4 1 5 2 3 6 1 4 2 5 3 1 4 2 5 3 1 4 2 5 3 1 6 2 5 3 4 2 1 1 2 A 1 2 3 4 B C D 1 2 3 4 A a A b A a B A MAIN UNIT FM AM TUNER UNIT 1 2 3 4 ...

Page 17: ... RBDS DECODER TUNER MUTE FM AM FM AM FM AM AM AM AM AM AM AM AM AM AM FM FM FM CD 0dB 1kHz 2 1dBs TAPE 250nwb m 315Hz 8 24dBs 1 4 2 5 6 3 6 3 2 5 1 4 1 4 2 5 3 1 4 2 5 3 1 4 2 5 3 5 6 7 8 A B C D 5 6 7 8 A a A b A a C CN902 Q CN702 N CN251 5 6 7 8 9 ...

Page 18: ...as 2 2 2R2 0 022 R022 The mark found on some component parts indicates the importance of the safety factor of the part Therefore when replacing be sure to use parts of identical designation 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 ...

Page 19: ...ZT 91 MG8706ZT MG8706ZT 91 RESET BACKUP SENSE ACC SENSE ILLUMINATION SENSE CD9V REGULATOR AUDIO B REGULATOR ANTENNA POWER SWITCH 1 4 2 5 3 6 1 4 2 5 3 6 1 4 2 5 3 6 1 4 2 5 3 6 5 6 7 8 A B C D 5 6 7 8 A a A b A b 5 6 7 8 9 ...

Page 20: ... MG8706ZT MG8706ZT 91 A 1 2 3 4 B C D 1 2 3 4 FM AM FM FM FM FM FM FM AM AM AM AM AM FM AM FM AM FM AM FM AM FM AM FM AM AM FM FM AM FM FM AM AM AM AM AM RF FM FRONT END FM OSC AM OSC A 3 3 FM AM TUNER UNIT B FM AM TUNER UNIT B ...

Page 21: ...21 FX MG8606ZT MG8606ZT 91 MG8706ZT MG8706ZT 91 5 6 7 8 A B C D 5 6 7 8 FM M FM FM FM FM FM AM AM AM AM AM FM AM FM AM PNS FM IF B ...

Page 22: ...22 FX MG8606ZT MG8606ZT 91 MG8706ZT MG8706ZT 91 A 1 2 3 4 B C D 1 2 3 4 3 4 KEYBOARD UNIT C KEYBOARD UNIT C ...

Page 23: ...23 FX MG8606ZT MG8606ZT 91 MG8706ZT MG8706ZT 91 5 6 7 8 A B C D 5 6 7 8 A TRAF MSG D920 HZU6R2 B1 5 1 2 3 4 5 1 2 3 4 RWR VOL AUDIO TUNE CN804 C ...

Page 24: ...8706ZT MG8706ZT 91 A 1 2 3 4 B C D 1 2 3 4 M5 SPINDLE CXM1120 DISC INSERT DETECT M4 CARRIAGE CXB3178 D MOTOR PCB B PICKUP UNIT SERVICE P8 RF AMP AUTO POWER CONTROL CD DRIVER E CD CORE UNIT SERVO UNIT 3 5 CD CORE UNIT SERVO UNIT D E ...

Page 25: ...25 FX MG8606ZT MG8606ZT 91 MG8706ZT MG8706ZT 91 5 6 7 8 A B C D 5 6 7 8 FOCUS TRACKING CARRIAGE SPINDLE DIGITAL SERVO DIGITAL SIGNAL PROCESSOR D A CONVERTER F E ...

Page 26: ...6ZT MG8706ZT 91 A 1 2 3 4 B C D 1 2 3 4 E CD CORE UNIT SERVO UNIT M1 CXB3174 Q1 RPI 221 M3 CXB3175 F MOTOR PCB A ELV SENSE SURE TRACK MEMORY CONTROLLER G CD CORE UNIT STS UNIT MOTOR DRIVER H 5V REGULATOR 3 6 CD CORE UNIT STS UNIT F G ...

Page 27: ...27 FX MG8606ZT MG8606ZT 91 MG8706ZT MG8706ZT 91 5 6 7 8 A B C D 5 6 7 8 ROLLER D A CONVERTER 4M DRAM CN MOTOR DRIVER ER G CN701 Q ...

Page 28: ...cus close 1ms div 8 CH1 TEY 0 5V div 9 CH2 TIN 0 5V div Test mode 32 tracks jump FWD 0 5ms div 8 CH1 TEY 0 5V div 9 CH2 TIN 0 5V div Test mode Single jump FWD 0 5ms div 6 CH1 FEY 0 1V div 3 CH2 FIN 0 2V div Normal mode Play 20ms div 3 CH1 FIN 0 5V div 0 CH2 SIN 1V div Normal mode Focus close 0 5s div GND GND GND GND Waveforms 0 SIN 0 5V div 0 1s div Normal mode Play REFOUT REFOUT REFOUT REFOUT REF...

Page 29: ...lose Tracking open 2ms div 6 CH1 FEY 0 2V div 3 CH2 FIN 0 5V div Normal mode During AGC 1ms div EFM 1V div 2µs div Play 0 2s div Dout 2V div 5µs div Play LRCK 2V div 10µs div ADRMON 1V div 1s div Normal mode Starting play GND REFOUT REFOUT REFOUT REFOUT REFOUT REFOUT REFOUT REFOUT REFOUT REFOUT REFOUT REFOUT REFOUT REFOUT 1 CH1 RFO 1V div CH2 HOLD 5V div Normal mode The defect part passes 800µm 50...

Page 30: ...div 9 CH2 TIN 0 5V div Test mode 100 tracks jump FWD 8 CH1 TEY 0 5V div 9 CH2 TIN 0 5V div Normal mode Play 10ms div 5ms div REFOUT REFOUT SCKO 2V div 500ns div Play REFOUT CH1 RCH 2V div CH2 LCH 2V div Normal mode PLAY 0dB 1kHz 200µs div AAGND AAGND REFOUT REFOUT ...

Page 31: ...ZT 91 1 2 3 4 A B C D 1 2 3 4 H I J L M K CXB3177 G CN802 MAX DETECT SWITCH PCB UNIT A PCB UNIT C PCB UNIT E PCB UNIT B PCB UNIT D LOAD MOTOR PCB CPT230SCTD CPT230SCTD S886 CSN1052 S887 CSN1051 3 7 PCB UNIT A B C D E LOAD MOTOR PCB M J I H K L ...

Page 32: ...R FL C302 R1 VR302 33K B 8 24dBs 300mV 1dB Fwd R Fwd L Rev R Rev L NFI L RIN L RIP FIN L GND GND FIN R VREF RIN R NFI R M OUT R EQOUT R TAI R BIAS RAI R PBOUT R DET L MUTE MSGV R MAOUT MSI MSDET MSGV F R 120 70 NR MOUT L EQOUT L TAI L NC RAI L PBOUT L NC DET L MSGV S CN252 CN251 DOLBY B NR IC251 VR301 33K B C310 R1 C309 R1 R322 0R0 VCC CCP1280 CCP1280 NC MSOUT NC NC R260 13K R262 270K C401 4700P R...

Page 33: ...AIN MOTOR EXA1499 M2 MOTOR UNIT SUB MOTOR EXA1382 RS3 RS2 RS1 SC2 SC1 TAB MC CE VCC2 NC VCC MCS RRS FRS RSB C TAB MS2 NC NC MM SM1 RRS GND FRS mtl RSB load CN253 CN254 MECHANISM DRIVER IC351 PA2020A R373 0R0 R404 270K C405 R033 R277 220K R278 100K 1 4116 PCB UNIT REEL PCB S1 LOAD ESG1004 S2 ESG1004 70µs MODE SENSE EGN1 EGN1005 EGN2 EGN1006 FWD END SENSE EGN3 EGN1006 REV END SENSE 7 7 8 NM MCS R357...

Page 34: ...34 FX MG8606ZT MG8606ZT 91 MG8706ZT MG8706ZT 91 CD CONTROLLER A 1 2 3 4 B C D 1 2 3 4 3 9 CONTROL UNIT Q Q CONTROL UNIT G CD CORE UNIT STS UNIT ...

Page 35: ...35 FX MG8606ZT MG8606ZT 91 MG8706ZT MG8706ZT 91 5 6 7 8 A B C D 5 6 7 8 Q A MAIN UNIT ...

Page 36: ...N UNIT Capacitor Connector P C Board Chip Part SIDE A SIDE B 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 diagram 2 Viewpoint of PCB diagrams C CN902 N CN251 FRONT Q CN702 ...

Page 37: ...37 FX MG8606ZT MG8606ZT 91 MG8706ZT MG8706ZT 91 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 5 6 7 8 A B C D 5 6 7 8 A SIDE A B ...

Page 38: ...38 FX MG8606ZT MG8606ZT 91 MG8706ZT MG8706ZT 91 A 1 2 3 4 B C D 1 2 3 4 A A MAIN UNIT ...

Page 39: ...39 FX MG8606ZT MG8606ZT 91 MG8706ZT MG8706ZT 91 5 6 7 8 A B C D 5 6 7 8 A SIDE B ...

Page 40: ...40 FX MG8606ZT MG8606ZT 91 MG8706ZT MG8706ZT 91 A 1 2 3 4 B C D 1 2 3 4 4 2 FM AM TUNER UNIT SIDE A B FM AM TUNER UNIT A B ...

Page 41: ...41 FX MG8606ZT MG8606ZT 91 MG8706ZT MG8706ZT 91 1 2 3 4 A B C D 1 2 3 4 B FM AM TUNER UNIT SIDE B B ...

Page 42: ...MG8606ZT 91 MG8706ZT MG8706ZT 91 A 1 2 3 4 B C D 1 2 3 4 ADJ LOAD RDS TYPE AUDIO TUNE MSG SCAN 6 5 4 3 2 1 TAPE EJECT AM FM TAPE DISC TRAF PWR VOL LCD DOWN CD EJECT UP DCLOSE 4 3 KEYBOARD UNIT C KEYBOARD UNIT C SIDE A ...

Page 43: ...43 FX MG8606ZT MG8606ZT 91 MG8706ZT MG8706ZT 91 1 2 3 4 A B C D 1 2 3 4 C SIDE B C KEYBOARD UNIT A CN804 ...

Page 44: ...44 FX MG8606ZT MG8606ZT 91 MG8706ZT MG8706ZT 91 A 1 2 3 4 B C D 1 2 3 4 4 4 CD CORE UNIT SERVO UNIT F E REFOUT PICKUP UNIT SERVICE D F CD CORE UNIT SERVO UNIT E SIDE A E ...

Page 45: ...45 FX MG8606ZT MG8606ZT 91 MG8706ZT MG8706ZT 91 1 2 3 4 A B C D 1 2 3 4 CD CORE UNIT SERVO UNIT E SIDE B E ...

Page 46: ...46 FX MG8606ZT MG8606ZT 91 MG8706ZT MG8706ZT 91 A 1 2 3 4 B C D 1 2 3 4 E E MODE DOOR F 4 5 CD CORE UNIT STS UNIT CD CORE UNIT STS UNIT G Q CN701 SIDE A G H F ...

Page 47: ...47 FX MG8606ZT MG8606ZT 91 MG8706ZT MG8706ZT 91 1 2 3 4 A B C D 1 2 3 4 CD CORE UNIT STS UNIT G SIDE B G ...

Page 48: ...48 FX MG8606ZT MG8606ZT 91 MG8706ZT MG8706ZT 91 A 1 2 3 4 B C D 1 2 3 4 4 6 MOTOR PCB A Q1 ELV SENSE M M1 CAM GEAR M M3 ELV 1 30 D CN201 E MOTOR PCB A F F SIDE A ...

Page 49: ...49 FX MG8606ZT MG8606ZT 91 MG8706ZT MG8706ZT 91 1 2 3 4 A B C D 1 2 3 4 1 41 G CN801 G MOTOR PCB A F F SIDE B ...

Page 50: ...50 FX MG8606ZT MG8606ZT 91 MG8706ZT MG8706ZT 91 A 1 2 3 4 B C D 1 2 3 4 4 7 MOTOR PCB B SPINDLE MOTOR M5 MOTOR PCB B D D ...

Page 51: ...51 FX MG8606ZT MG8606ZT 91 MG8706ZT MG8706ZT 91 5 6 7 8 A B C D 5 6 7 8 M M4 CARRIAGE 1 12 E CN301 D ...

Page 52: ...52 FX MG8606ZT MG8606ZT 91 MG8706ZT MG8706ZT 91 A 1 2 3 4 B C D 1 2 3 4 S887 CLAMP 1 1 7 S886 ELV HOME G CN802 I 11 4 8 PCB UNIT B PCB UNIT B H 4 9 PCB UNIT D PCB UNIT D M M H ...

Page 53: ...53 FX MG8606ZT MG8606ZT 91 MG8706ZT MG8706ZT 91 1 2 3 4 A B C D 1 2 3 4 4 1 D883 S885 MAX DETECT Q881 I 4 10 PCB UNIT C PCB UNIT C J J ...

Page 54: ...54 FX MG8606ZT MG8606ZT 91 MG8706ZT MG8706ZT 91 A 1 2 3 4 B C D 1 2 3 4 M M2 LOAD 1 1 4 2 I M 4 11 LOAD MOTOR PCB 4 12 PCB UNIT A D891 D892 1 2 I LOAD MOTOR PCB K PCB UNIT A L K L ...

Page 55: ...55 FX MG8606ZT MG8606ZT 91 MG8706ZT MG8706ZT 91 1 2 3 4 A B C D 1 2 3 4 4 13 PCB UNIT E PCB UNIT E I PCB UNIT E I SIDE A SIDE B I ...

Page 56: ...81 R282 R283 R251 VR301 C251 IC251 VR302 R292 R272 R273 R253 C253 R287 R286 R285 R258 Q352 R362 R373 R375 R374 R357 R359 R361 R360 R351 R352 R353 R354 R355 C352 C354 C351 C356 C353 C355 C405 C403 C402 C401 C404 C310 C309 C272 C301 C255 C254 C302 C252 C256 R255 R261 R257 R259 R271 R252 R254 R260 R262 R256 R322 R296 R403 R402 R401 R278 R276 R277 R404 Q271 1 10 11 20 21 30 31 40 8 7 6 5 4 3 2 1 1 2 3...

Page 57: ... MG8706ZT MG8706ZT 91 1 2 3 4 A B C D 1 2 3 4 1 2 3 4 5 6 7 8 6 5 4 3 2 1 L1 RED M M1 MOTOR UNIT MAIN MOTOR LOAD SW S1 70µs SW S2 MODE SENSE EGN1 4 16 REEL PCB 4 15 PCB UNIT PCB UNIT O PCB UNIT O REEL PCB P O P SIDE A SIDE B P O ...

Page 58: ...58 FX MG8606ZT MG8606ZT 91 MG8706ZT MG8706ZT 91 A 1 2 3 4 B C D 1 2 3 4 4 17 CONTROL UNIT CONTROL UNIT Q G SIDE A A CN701 CN303 Q ...

Page 59: ...59 FX MG8606ZT MG8606ZT 91 MG8706ZT MG8706ZT 91 1 2 3 4 A B C D 1 2 3 4 CONTROL UNIT Q SIDE B Q ...

Page 60: ...31 Inductor LAU3R3J T 31 Coil CTE1116 TC 1 Trimmer CCL1019 TC 2 Trimmer CCL1019 TC 3 Trimmer CCL1019 CF 25 Ceramic Filter CTF1292 CF 51 Ceramic Filter CTF1292 CF 52 Ceramic Filter CTF1292 CF 53 Ceramic Filter CTF1292 CF 230 Crystal Filter CTF1262 CF 232 Ceramic Filter CTF1348 X 151 Radiator 918 5Hz CSS1365 X 231 Crystal Resonator 10 26MHz CSS1111 VR 101 Semi fixed 15kΩ B CCP1230 VR 151 Semi fixed ...

Page 61: ...5 CKSRYB103K25 C 106 CCSRCH151J50 C 107 CKSRYB103K25 C 151 CKSRYB562K25 C 152 CKSQYB104K16 C 153 CEAL3R3M50 C 154 CKSQYB104K16 C 157 CEAL3R3M50 C 158 CKSYB474K16 C 159 CEAL220M6R3 C 160 CKSQYB104K16 C 161 CKSQYB104K16 C 162 CEAL3R3M50 C 163 CKSRYB102K50 C 165 CCSRCH100D50 C 201 CKSRYB103K25 C 202 CCSRCH100D50 C 203 CKSRYB332K50 C 204 CKSQYB473K16 C 205 CKSQYB473K16 C 206 CKSRYB103K25 C 207 CCSRCH1...

Page 62: ...7 Diode 1SS355 D 519 Diode DAN202K D 603 Diode MA110 D 605 Diode 1SS355 D 611 Diode UDZ18 B D 612 Diode UDZ18 B D 801 Diode 1SS355 D 802 Diode UDZS5R6 B D 803 Diode RM4LFJ10 D 804 Diode 1SS355 D 805 Diode UDZ20 B D 806 Diode ERA15 02VH D 807 Diode UDZS5R6 B D 808 Diode HZU8R2 B1 D 809 Diode HZU8R2 B1 D 810 Diode HZU8R2 B1 D 811 Diode 1SS355 D 812 Diode HZU8R2 B1 D 813 Diode 1SS355 D 814 Diode HZU8...

Page 63: ...39 RS1 10S392J R 340 RS1 10S392J R 341 RS1 10S473J R 342 RS1 10S473J R 343 RS1 10S472J R 344 RS1 10S102J R 345 RS1 10S223J R 346 RS1 10S103J R 347 RS1 10S104J R 348 RS1 10S153J R 349 RS1 10S392J R 401 RS1 10S272J R 402 RS1 10S272J R 403 RS1 10S222J R 405 RS1 10S222J R 406 RS1 10S222J R 407 RS1 10S183J R 408 RS1 10S183J R 409 RS1 10S222J R 411 RS1 10S683J R 412 RS1 10S683J R 413 RS1 10S182J R 414 R...

Page 64: ...S103J R 823 RS1 10S223J R 824 RS1 10S102J R 825 RS1 10S331J R 826 RS1 10S103J R 827 RS1 10S471J R 828 RS1 10S102J R 829 RS1 10S223J R 830 RS1 10S221J R 831 RS1 10S331J R 832 RS1 10S471J R 833 RS1 10S102J R 840 RS1 4S1R5J R 841 RS1 4S1R5J R 842 RS1 4S1R5J R 843 RS1 4S1R5J R 844 RS1 10S471J R 845 RS1 10S471J R 846 RS1 10S105J R 847 RS1 10S361J R 848 RS1 10S182J R 849 RS1 10S302J R 850 RS1 4S2R2J R 8...

Page 65: ...3K50 C 413 4 7µF 35V CCH1016 C 414 4 7µF 35V CCH1016 C 434 CKSQYB153K50 C 435 CKSQYB105K16 C 436 CEJA101M10 C 503 CKSQYB222K50 C 504 CKSQYB222K50 C 505 CKSQYB222K50 C 507 CKSQYB103K50 C 508 CKSQYB103K50 C 509 CEAL100M16 C 510 CKSQYB472K50 C 511 CEAL100M16 C 512 CKSQYB473K50 C 513 CEAL2R2M50 C 514 CKSQYB102K50 C 515 CKSQYB103K50 C 516 CKSQYB103K50 C 517 CKSQYB392K50 C 519 CKSQYB472K50 C 521 CKSQYB2...

Page 66: ...5 RS1 10S273J R 736 RS1 10S512J R 737 RS1 10S104J R 738 RS1 10S154J R 739 RS1 10S183J R 740 RS1 10S102J CAPACITORS C 701 CKSYB102K50 C 702 CKSQYB102K50 C 704 CKSQYB102K50 C 705 CKSQYB102K50 C 706 CKSQYB102K50 C 709 CCSQCH101J50 C 711 CKSQYB102K50 C 712 CKSQYB102K50 C 714 CCSQCH180J50 C 715 CCSQCH180J50 C 716 CKSQYB102K50 C 717 CKSQYB102K50 C 718 CKSQYB102K50 C 719 CKSQYB102K50 C 721 CKSQYB102K50 C...

Page 67: ...202 Inductor LCYBR15J1608 X 201 Ceramic Resonator 16 934MHz CSS1457 EF 201 Filter CCG1076 EF 202 Filter CCG1076 RESISTORS R 101 RS1 8S100J R 102 RS1 8S120J R 104 RS1 16S822J R 105 RS1 16S682J R 106 RS1 16S183J R 107 RS1 16S822J R 108 RS1 16S333J R 109 RS1 16S683J R 110 RS1 16S134J R 111 RS1 16S273J R 112 RS1 16S222J R 113 RS1 16S103J R 114 RS1 16S103J R 115 RS1 16S102J R 116 RS1 16S163J R 117 RS1 ...

Page 68: ...504 RS1 16S822J R 505 RS1 16S163J R 506 RS1 16S512J R 507 RS1 16S182J R 508 RS1 16S222J R 509 RS1 16S102J R 510 RS1 16S102J R 511 RS1 16S102J R 512 RS1 16S102J R 513 RS1 16S102J R 514 RS1 16S471J R 601 RS1 16S101J R 602 RS1 16S101J R 603 RS1 16S471J R 604 RS1 16S471J R 702 RS1 10S100J R 716 RS1 16S471J R 717 RS1 16S471J R 718 RS1 16S471J R 801 RS1 10S102J CAPACITORS C 501 CKSQYB334K16 C 502 CKSQYB...

Page 69: ...16S0R0J R 351 RS1 16S102J R 352 RS1 16S102J R 353 RS1 16S102J R 354 RS1 16S102J R 355 RS1 10S274J R 356 RS1 10S202J R 357 RS1 10S472J R 358 RS1 10S103J R 359 RS1 10S103J R 360 RS1 10S102J R 361 RS1 10S622J R 362 RS1 8S181J R 373 RS1 8S0R0J R 374 RS1 8S0R0J R 375 RS1 8S0R0J R 401 RS1 16S123J R 402 RS1 16S332J R 403 RS1 16S911J R 404 RS1 16S274J CAPACITORS C 251 CKSRYB391K50 C 252 CKSRYB391K50 C 253...

Page 70: ... ADJUSTMENT 6 1 TUNER CASSETTE SECTION Connection Diagram 12P 20P 12P H U FX MG8606ZT UC PRE 16P 25P 16P 25P 20P 20P DVD CH XDV M8106ZT UC AMP GM 8406ZT UC 6P When XDV M8106ZT UC is repaired GGD1240 GGD1241 20P FX MG8706ZT UC GGD1169 BULLET CONNECTOR ...

Page 71: ...C Regulated Power Supply BACK UP ACC GND 13 2V GND FM AM TUNER UNIT DECK UNIT 4Ω VR251 VR301 mV Meter 2 VR302 L CH R CH Pin2 Pin3 CN251 DECK UNIT Extention Cord GGD1121 R267 DC V Meter 3 DC V Meter 1 Pin 1 Pin 14 Pin 13 Pin26 FM AM TUNER UNIT SIDE A DC V Meter 2 L5 L52 VR151 VR101 VR154 VR156 T31 L6 Pin 6 FMSD Pin 19 FMTV Pin 27 Pin 28 Center Meter C63 L52 FM AM TUNER UNIT SIDE B TC3 TC2 TC1 VR552...

Page 72: ...mV Meter 1 Maximum RF Trimmer 1 106 1 M 5 15 106 1 TC3 mV Meter 1 Maximum RF Coil 1 89 9 M 5 15 89 9 L6 mV Meter 1 Maximum RF Trimmer 1 106 1 M 5 15 106 1 TC3 mV Meter 1 Maximum Separation 1 98 1 S 65 98 1 VR101 mV Meter 1 Maximum ARC 1 98 1 S 38 98 1 VR154 mV Meter 1 Separation 5dB Separation Interstation 1 98 1 M 65 98 1 mV Meter 1 AdB Noise 2 98 1 M 98 1 VR151 mV Meter 1 A 20dB Search 1 98 1 M ...

Page 73: ...t 74 dBuV EMF 2 Set the system as shown in 1 then tune to a radio station 3 Superimpose the pulse over signal to set modulation of SSG to OFF 4 Use a noise meter to monitor output Adjust VR552 to minimize the noise level Pulse generator equivalent to HP8011A SSG 2 signal pad AM dummy FX MG8606ZT UC FX MG8706ZT UC Output Noise meter Pulse width 50usec Pulse intervals 5msec Pulse voltage 4Vp p 4Vp p...

Page 74: ...move the PU unit to the innermost track 3 Press key 5 to close focus the display should read 91 Press key 3 to implement the tracking balance adjustment the display should now read 81 Press key 5 4 times The display will change returning to 81 on the fourth press 4 As shown in the diagram above monitor the LPF outputs using the oscilloscope and check that the phase difference is within 75 Refer to...

Page 75: ...75 FX MG8606ZT MG8606ZT 91 MG8706ZT MG8706ZT 91 Grating waveform Ech Xch 20mV div AC Fch Ych 20mV div AC 45 0 75 60 30 90 ...

Page 76: ...the test mode is turned on various protective functions from the software become unavailable Thus you must make sure that undesirable electric or mechanical shocks are not be given to the system This model employs a photo transistor for detecting discs at their loading or ejection Thus if its outer case is removed during repair work and internal parts are exposed to light of strong intensity malfu...

Page 77: ...tching Auto Tracking Balance adjustment Tracking Open Focus Close S Curve F EQ measurement Rough Servo AGC Focus Open Focus Mode select Tracking Close CRG TR Jump Switching CRG TR Jump Toward inner perimeter Error occurrence time Cause display switching Track FF Track REV Mode RAMDOM Auto Manual switching DISC UP DISC UP EJECT LOAD DISC Eject DISC Eject DISC Load DISC Load Source CD Test Mode In C...

Page 78: ...es CAM SW CAM gear status SW1 DOORSW SW2 LOADSW SW3 MODESW SW4 CLAMPSW Display 10 30 31 21 20 22 23 33 32 REV FWD Note 2 clamp CD or DISC TRK MIN SEC SEEK UP AM 1 EJECT DISC DOWN DISC Eject LOAD DISC Load Operating Procedures 1 2 3 4 Enter Diag and set on the CD test mode Subsequently exit from Diag and set the source for the CD Turn on the Mechanism Test Mode using the 3 key Select the motor to b...

Page 79: ... When 10 is displayed select the 3 LOADMOTOR then drive it in REV direction until the disc is completely ejected Operating Procedures for Ejecting a Clamped Disc Error No Display The error mode is turned on if a CD player becomes not playable or is forced to halt due to an error Cause s of an error will be indicated with numerical characters The error number display function is intended to facilit...

Page 80: ...laced from its specified position 52 EJECT time out 8 seconds have elapsed before completing the EJECT operation An error will be indicated if the disc is still caught by the photo transistor after 4 seconds of forced eject 57 Photo transistor being caught When forced eject was employed for the Bup failure during loading or after forced EJECT ejection an error will be indicated if the disk is stil...

Page 81: ...e the Case 2 Remove the two screws B 3 Remove the eight stoppers 4 Disconnect the connector and then remove the Grille Assy Grille Assy Case A B Removing the Frame and Chassis Fig 2 1 Remove the four screws D and then remove the Chassis 2 Remove the four screws C and then remove the Frame C Fig 1 Fig 2 B A A A D Chassis Frame C C C D D D Connector ...

Page 82: ...m Section Removing the Control Unit Fig 4 1 Unbend the tabs at two locations indicated by arrows until straight 2 Remove the screw F 3 Disconnect the two connectors and then remove the Control Unit Removing the Mechanism Unit Fig 4 1 Remove the five screws G and then remove the four Holders and four Dampers 2 Remove the two springs A spring B and spring C from the hock 2 Remove the Mechanism Unit ...

Page 83: ...am gear motor until all holes match at the position A elevation OK position 2 Hook the three springs B temporarily as shown in Fig 5 While pushing the Tray holder lock arms right and left in the direction C remove the Tray holder 3 Lift up the Tray assy to remove it Be careful not to remove the Tray hooks from the Tray assy ELV motor Cam gear motor Approximately DC 6V Tray holder Tray holder lock ...

Page 84: ... 7 When the positions of all holes match they will be completely covered by the Carriage mech assy To rotate the Cam Gear motor see How to remove the Tray assy 6 Unhook the spring A 7 Remove the flexible holder B while opening the hooks 8 Remove the flexible PCB C from the motor The flexible PCB C has been stuck on the motor with double sided adhesive tape 9 Loosen the fixing screw and remove the ...

Page 85: ... 7 Remove the Pickup unit together with the feed screw Be careful not to lose the shaft holders at the both ends of the feed screw Be careful not to damage the 2 flexible PCBs for the Pickup and motor when separating them The flexible PCBs have been stuck each other with double sided adhesive tape Clamper arm E shaped ring Pulling spring Torsion spring White Black Pickup unit Feed screw Belt Carri...

Page 86: ...ATIONS D A C B J L O K M E I N MOTOR PCB B CD CORE UNIT STS UNIT G PCB UNIT C F H P Q PCB UNIT E PCB UNIT A PCB UNIT D LOAD MOTOR PCB CD CORE UNIT SERVO UNIT PCB UNIT B MOTOR PCB A CONTROL UNIT MAIN UNIT KEYBOARD UNIT FM AM TUNER UNIT DECK UNIT REEL PCB PCB UNIT ...

Page 87: ...87 FX MG8606ZT MG8606ZT 91 MG8706ZT MG8706ZT 91 7 1 4 CONNECTOR FUNCTION DESCRIPTION R L GND TXM TXM ACC R L SGND MUTE B R L GND TX TX ACC R L ANT MUTE B SGND ILL ILL MAIN ANTENNA SUB ANTENNA ...

Page 88: ... input 28 rdslk I RDS LK signal input 29 RX1 I IE BUS data input 30 TX O IE BUS data output 31 PDO O Data output for PLL IC 32 PDI I Data input from PLL IC 33 PCK O Serial clock output for PLL IC 34 PCE O Chip enable output for PLL IC 35 BSO O P BUS serial data output 36 BSI I P BUS serial data input 37 bsck O P BUS serial clock output 38 BRXEN I O P BUS reception enable input output pin 39 brst I...

Page 89: ... 76 NR O Dolby NR ON OFF select output 77 CSLOAD I Tape loading detect input 78 POS I Cassette mechanism position sense input 79 RES I Cassette mechanism reverse end sense input 80 NES I Cassette mechanism forward end sense input 81 TEST I Test mode input 82 SC2 O Cassette mechanism sub motor control 2 output 83 SC1 O Cassette mechanism sub motor control 1 output 84 CM O Cassette mechanism capstan...

Page 90: ...y control output 27 CONT O C Servo driver output control 28 Xin I Crystal oscillating element connection pin 29 Xout O C Crystal oscillating element connection pin 30 VSS GND 31 38 NC Not used 39 TESTIN I Chip check program mode input 40 DCLOSE I Door close sense input 41 WDSL O C Data comparison area specification signal output 42 XWIH I Data write inhibit input 43 XEMP I Data read inhibit input ...

Page 91: ...sition photo sense input 80 TEMP I Temperature detector input UPD16432B 001 25 26 50 51 75 76 100 1 Pin Functions UPD16432B 001 Pin No Pin Name I O Function and Operation 1 4 NC Not used 5 VSS GND 6 VLC5 Connect to GND 7 11 VLC4 0 LCD drive power supply 12 VDD Power supply terminal 13 SYNC I O Synchronous signal input output 14 lcdoff O LCD display inhibit output 15 lreset I Reset input 16 KEYREQ ...

Page 92: ...14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 MSGV R MAOUT MSI MSDET VCC MSOUT MSGV F R 120 70 NR MOUT L EQOUT L TAI L NC RAI L PBOUT L NC DET L NC MSGV S NFI L RIN L RIP FIN L GND GND FIN R VREF RIN R NFI R M OUT R EQOUT R TAI R BIAS RAI R PBOUT R NC DET L NC MUTE Dolby B N LPF DET S R T R Dolby B N T R F R F R ...

Page 93: ...SEG36 SEG37 SEG38 SEG41 SEG42 SEG43 SEG44 SEG45 SEG46 SEG47 SEG48 SEG49 SEG50 SEG51 SEG52 SEG53 SEG54 SEG55 SEG56 SEG57 SEG58 SEG59 SEG60 SEG61 SEG62 SEG63 SEG64 SEG65 SEG66 SEG67 SEG68 SEG69 SEG70 SEG71 SEG72 SEG73 SEG74 SEG75 SEG76 SEG77 SEG78 SEG79 SEG80 SEG81 SEG82 SEG83 SEG84 COM0 COM1 COM2 COM3 COM4 COM5 COM6 COM7 COM0 COM1 COM2 COM3 COM4 COM5 COM6 COM7 COM0 SEG40 SEG85 COM0 COM1 COM2 COM3 C...

Page 94: ...6ZT 91 7 3 EXPLANATION 7 3 1 SYSTEM BLOCK DIAGRAM HEAD UNIT FX MG8706ZT UC HEAD UNIT FX MG8606ZT UC AMP 6ch DSP GM 8406ZT UC AMP MARK LEVINSON Front 50Wx2 3 5Ω Rear 50Wx2 3 5Ω Woofer 50Wx2 3 5Ω MARK LEVINSON PIONEER System MARK LEVINSON System ...

Page 95: ...in 62pin YES bsens 75pin L asens 73pin L IPPW H 22pin swvdd L 45pin brst H 39pin Starts communication with AVC LAN Starts communication with G1 microcomputer Source Keys operative Power ON YES Source ON Completes power on operation After that proceed to each source operation syspw L 52pin ...

Page 96: ...REBLE MID RANGE ASL FM PRESET RECALL PRESET CH MEMORY MANUAL SEEK UP DOWN SCAN PRESET SCAN RADIO TEXT INDICATE RADIO TEXT MEMORY RDS ON OFF PTY INDICATE VOLUME POWER ON OFF TUNING BALANCE FADER BASS TREBLE MID RANGE ASL AUTOMATIC PROGRAM SEARCH UP DOWN VOLUME POWER ON OFF TAPE TAPE EJECT DIRECTION CHANGE DOLBY NR MUSIC REPEAT BLANK SKIP FAST FORWARD REWIND ...

Page 97: ...706ZT MG8706ZT 91 CD TUNING BALANCE FADER BASS TREBLE MID RANGE ASL CD TRACK NUMBER SEARCH UP DOWN VOLUME POWER ON OFF FAST DOWN FAST UP UP DOWN DISC SCAN TRACK SCAN DISC NUMBER SELECT TRACK DISC REPEAT RANDOM PLAY CD EJECT CD LOAD ...

Page 98: ... Cassette player Tape Compact cassette tape C30 C90 Tape speed 4 76 cm sec 0 14 cm sec 0 05 cm sec Wow and flutter 0 2 or less WRMS Crosstalk 40dB or less Stereo Separation 30dB or more S N 41dB or more Distortion 3 or less CD player System Compact disc audio system Usable discs Compact disc Signal format Sampling frequency 44 1kHz Number of guantization 16 linear S N 70dB or more Distortion 0 2 o...

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Pioneer FX-MG8606ZT-91/UC, Service Manual

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