Pioneer GX470 Service Manual Download

Page: 13 / 35

KEX-M8727ZT/UC

C D

SENSOR UNIT

SWITCHES:
SENSOR UNIT
S101:LOAD SWITCH..........EJECT-PLAY
S102:MODE SWITCH............ON-OFF
S103:70

s SWITCH...............ON-OFF

The underlined indicates the switch position.

R275

47K

R351

R352

R353

R354

R373

0R0

R355

270K

C352

3900P

R362

300

C351

R22

C353

R01

C354

R01

R374

0R0

C356

R01

C355

D352

1SS355

M1 MOTOR UNIT
(MAIN MOTOR)
EXA1618

S101

LOAD

ESG1007x3

S102

MODE

Q101
EGN1004

M2
MOTOR UNIT
(SUB MOTOR)
EXA1623

RS3

RS2

RS1

SC2

SC1

TAB

VCC2

VCC

MCS

RRS

FRS

RSB

TAB

MS2

SM1

RSB

GND

mtl

MCS

load

CN255

CN253

CN256

CN254

MECHANISM

DRIVER

IC351 PA2020A

R321

0R0

R375

0R0

S103

R276

100K

C403

R022

R274

0R0

R404

270K

C405 R033

R277

220K

R278

100K

Q271
2SC4116

CN353

L101

L102

Summary of Contents for GX470

Page 1: ...YOTA by PIONEER CORPORATION VEHICLE DESTINATION PRODUCED AFTER TOYOTA PARTS No ID No PIONEER MODEL No LEXUS GX470 U S A CANADA November 2002 86120 60440 P1731 KEX M8727ZT UC KEX M8727ZT 91 UC LEXUS GX470 U S A CANADA November 2002 86120 60470 P1732 KEX M8527ZT UC KEX M8527ZT 91 UC ...

Page 2: ...G ADJ RF ADJ X901 10 25MHz ANT ADJ LOCL AMDET MPXREF 41kHz AM 2ND IF 450kHz 1 STIND L ch 9 AMDET 17 AMPNS 26 RFGND CN901 KEY MATRIX ILLUMINATION BU 2 Q502 AUD B SW5V Q Q405 Q 44 AMPW Q252 55 NL2 Q406 IC401 NJM2068M RBDS DECODER TUNER MIXING AM PNS FML AML Q561 AMB AMB IC501 LA1061M 1 13 5 6 Q501 NIN MFIX SUB MAIN SUB MAIN PD5840A CN251 CN252 CN253 CN255 CN256 CN254 IC251 HA12216F TAPE EQUALIZER ME...

Page 3: ...302 NJM2068MD IC201 BU 7 NJM2068MD IC304 Q205 Q204 NJM2068MD IC303 16 8 8 16 8 2 8 CN472 Q305 Q304 Q867 Q865 Q866 Q864 Q860 Q861 Q862 Q863 BU BU 3 Q563 Q405 Q564 44 AMPW Q252 55 NL2 Q406 IC401 NJM2068MD ACC Q807 Q870 Q645 Q644 ASEN ACC Q805 ISEN ILL 11 SWVDD 100 ANTB 5 3 2 75 Q806 BSEN BU BU BU VDD VDD AMP AUD B SW5V Q453 Q451 Q452 Q882 BU Q884 AUDIO SELECT FOR AMP AUDIO SELECT FOR RSA TUNER MIXIN...

Page 4: ...b A a Large size SCH diagram Guide page Detailed page Note When ordering service parts be sure to refer to EXPLODED VIEWS AND PARTS LIST or ELECTRICAL PARTS LIST A a A B CN901 C CN251 RBDS DECODER TUNER FM 24 0dBs 30 400Hz AM 11 7dBs 30 400Hz TAPE 7 5dBs 0dB 1kHz SYSTEMCONTROLLER 8V 5V FM DIVERSITY KEX KEX ...

Page 5: ...sistors NOTE Symbol indicates a capacitor No differentiation is made between chip capacitors and discrete capacitors FM 14 4dBs AM 14 8dBs KEX M8727ZT AM 11 5dBs KEX M8527ZT TAPE 7 5dBs L L AMP SYSTEM MUTE R R L L RSA UNBALANCE TO BALANCE SYSTEM MUTE UNBALANCE TO BALANCE AUDIO SELECTOR FOR RSA RSE FM 14 4dBs AM 14 8dBs KEX M8727ZT AM 11 5dBs KEX M8527ZT TAPE 7 5dBs VDD 5V AUDIO SELECTOR FOR AMP BA...

Page 6: ...KEX M8727ZT UC 14 1 2 3 4 1 2 3 4 C D F A B E A a A b A a A a A b 1 2 RBDS DECODER TUNER MIXING AMP FM 24 0dBs 30 400Hz AM 11 7dBs 30 400Hz 5V FM DIVERSITY KEX M8727ZT KEX M8527ZT ...

Page 7: ...KEX M8727ZT UC 15 5 6 7 8 5 6 7 8 C D F A B E A a A b A a A a A b 3 4 5 6 7 B CN901 C CN251 TAPE 7 5dBs 0dB 1kHz SYSTEM CONTROLLER 8V 5V ...

Page 8: ...s KEX M8527ZT TAPE 7 5dBs L L AMP SYSTEM MUTE R R L L RSA UNBALANCE TO BALANCE SYSTEM MUTE UNBALANCE TO BALANCE AUDIO SELECTOR FOR RSA RSE FM 14 4dBs AM 14 8dBs KEX M8727ZT AM 11 5dBs KEX M8527ZT TAPE 7 5dBs VDD 5V AUDIO SELECTOR FOR AMP BALANCE TO UNBALANCE NG AMP HARD MUTE 5V R417 418 KEX M8727ZT 91K KEX M8527ZT 62K ...

Page 9: ...actor 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 HARD MUTE FM 4 6dBs AM 5 0dBs KEX M8727ZT AM 1 7dBs KEX M8527ZT TAPE 2 3dBs 13 2V 13 2V ILL SENSE B U...

Page 10: ...KEX M8727ZT UC 18 1 2 3 4 1 2 3 4 C D F A B E 3 3 KEYBOARD UNIT B PWR VOL A CN804 ...

Page 11: ...KEX M8727ZT UC 19 5 6 7 8 5 6 7 8 C D F A B E B B KEYBOARD UNIT 8V 85mA 8V 85mA 8V 85mA 8V 85mA 8V 85mA 8V 85mA ...

Page 12: ...Y EXA1594 TEST TAPE NCT 150 400Hz 200nWb m RL RR FR 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 R321 0R0 VCC CCP1280 CCP1...

Page 13: ...00P R362 300 C351 R22 C353 R01 C354 R01 R374 0R0 C356 R01 C355 R1 D352 1SS355 M1 MOTOR UNIT MAIN MOTOR EXA1618 S101 LOAD ESG1007x3 S102 MODE Q101 EGN1004 M2 MOTOR UNIT SUB MOTOR EXA1623 RS3 RS2 RS1 SC2 SC1 TAB MC CE VCC2 NC VCC MCS RRS FRS RSB C TAB MS2 NC NC MM SM1 RSB GND RS mtl MCS load CN255 CN253 CN256 CN254 MECHANISM DRIVER IC351 PA2020A R321 0R0 R375 0R0 S103 70µs R276 100K 1 C403 R022 R274...

Page 14: ...UI FR FR KEX M8727ZT UC RSE ECU 24P 10P 32P 20P 12P 16P MCD 32P Rear Display F TEN 16P 16P 24P 20P 16P 16P AV Unit 10P 32P GGD1306 CDX M8027ZT E AMP M L 32P 12P GGD1304 24P 12P Bullet connector To DC Regulated Power Supply Bullet connector To DC Regulated Power Supply Bullet connector To DC Regulated Power Supply Bullet connector To DC Regulated Power Supply Bullet connector To DC Regulated Power ...

Page 15: ...P 20P 25P 8P 16P 16P 20P 25P GGD1240 AUI AUI FR FR 24P GGD1302 MCD NAVI ECU DENSO 6P 20P AMP M L Bullet connector To DC Regulated Power Supply Bullet connector To DC Regulated Power Supply Bullet connector To DC Regulated Power Supply Bullet connector SP Line Please connect only one Multi CD at the same time MCD does not operate if RSA controller is not connected 2 RSA option system ...

Page 16: ...6P 16P 20P 25P GGD1240 AUI AUI FR FR GGD1300 AMP M L MCD NAVI ECU DENSO GGD1304 32P 12P 24P 12P Bullet connector To DC Regulated Power Supply Bullet connector To DC Regulated Power Supply Bullet connector To DC Regulated Power Supply Bullet connector To DC Regulated Power Supply Bullet connector SP Line Please connect only one Multi CD at the same time 3 Standard system ...

Page 17: ...I AUI FR FR KEX M8527ZT UC GM 8027ZT E RSE ECU 24P 10P 32P 20P 12P 16P MCD 32P Rear Display F TEN 16P 16P 24P 20P 16P 16P AV Unit 10P 32P GGD1306 CDX M8027ZT E AMP 32P 12P GGD1304 24P 12P Bullet connector To DC Regulated Power Supply Bullet connector To DC Regulated Power Supply Bullet connector To DC Regulated Power Supply Bullet connector To DC Regulated Power Supply Bullet connector To DC Regul...

Page 18: ...P 12P 20P 20P 25P 8P 16P 16P 20P 25P GGD1240 AUI AUI FR FR 24P GGD1302 AMP MCD NAVI ECU DENSO 6P 20P Please connect only one Multi CD at the same time MCD does not operate if RSA controller is not connected Bullet connector SP Line Bullet connector To DC Regulated Power Supply Bullet connector To DC Regulated Power Supply Bullet connector To DC Regulated Power Supply 5 RSA option system ...

Page 19: ...14P 12P 20P 20P 25P 8P 16P 16P 20P 25P GGD1240 AUI AUI FR FR GGD1300 AMP MCD NAVI ECU DENSO 24P 12P Bullet connector To DC Regulated Power Supply Bullet connector To DC Regulated Power Supply Bullet connector To DC Regulated Power Supply Bullet connector To DC Regulated Power Supply Bullet connector SP Line Please connect only one Multi CD at the same time 6 Standard system ...

Page 20: ... DOLBY B NR ADJUSTMENT No Test Tape Adjustment Point Adjustment Method Switch Position 1 NCT 150 VR301 Lch VR302 Rch mV Meter 8 24dBs 300mV 1dB 400Hz 200nwb m DOLBY NR Switch OFF VR302 mV Meter VR301 L CH R CH Pin2 Pin3 CN251 DECK UNIT Extention Cord GGD1121 MAIN UNIT CN353 ...

Page 21: ...nput 74 dBuV EMF 2 Tune a RADIO to the 1 000kHz with 1 condition 3 Mix signal with the above mentioned pulse and SSG moduration OFF 4 Variable resistance adjust noise level to a minimam Adjustment point VR561 Main Unit Pulse generator equivalent to HP8011A SSG 2 signal pad AM dummy Output Noise meter Pulse width 50usec Pulse intervals 5msec Pulse voltage 4Vp p 4Vp p EMF 50us 5ms AM NOISE CANCELER ...

Page 22: ...e position of A and B is order of pushed 6 times in A B A B A and B Service Check screen is displayed As it is it waits for a while In general less than 1 minute DISPLAY Display Frame of display adjustment Audio mode The name of each apparatus such as an Audio H U is displayed B A 2 Service Check Service Check EMV Audio H U DSP AMP CD CH LAN Monitor ...

Page 23: ... is judged to be necessary is entered EXCH An error code indicating that exchange is judged to be necessary is entered ACC OFF Unit Check Mode Audio H U Current Memory 61 40 Occurred Date Time When displayed as CHEK or EXCH details will be displayed if the portion is touched It changes on the screen which displays the abnormalities on communication The detected abnormalities Diagnosis code are dis...

Page 24: ...on abnormal Connecting confirmation no response Last mode abnormal Command order no response Mode status abnormal Transmission fault Master reset Slave reset Master abnormal Registration completion acknowledgement error Voice processor ON abnormal ON OFF command or parameter abnormal Registration command transmission Multiple frames intermit Diagnosis no response 00 01 10 11 12 13 20 21 22 23 24 2...

Page 25: ...hanism Module Grille Assy Fig 1 1 1 Front Frame Removing the Front Frame Fig 2 Remove the three screws and then remove e the Front Frame 1 Fig 2 Removing the Cassette Mechanism Module Fig 1 e Remove the four screws and then remove the Cassette Mechanism Module 1 1 1 2 2 1 1 1 Fig 3 Main Unit Removing the Main Unit Fig 3 2 Straight the tabs at two locations indicated Remove the two screws and then ...

Page 26: ...7 1 2 CONNECTOR FUNCTION DESCRIPTION NC TX TX ACC BU MUTE L R R SGND GND L NC NC TX RSAR RMUTE RSAL STSW2 NC RSAL NC SWGND RSAR SGND NC NC NC NC STSW1 TX SGND GND L L R R MUTE NC NC TX TX NC NC AMP ANT ILL BU ACC ILL SUB ANTENNA MAIN ANTENNA NC NC ...

Page 27: ...ected correctly YES Is any sound of FM AM and TAPE internal sources output NO Connect amp correctly YES Is VOL adjustment enabled NO Check encoder input ENC1 Pin 65 IC601 YES Normal operation NO Check the following terminals SYSPWR Pin 1 IC601 sysmute2 Pin 5 IC601 sysmute1 Pin 6 IC601 YES Are FM and AM sounds output NO Check the following terminals FMPW Pin 43 IC601 AMPW Pin 44 IC601 YES Is TAPE s...

Page 28: ...ector output for AMP output 21 RX2 BUS 22 IPPW O BUS driver power supply output 23 SEL2a O Selector change for RSE Selector change for RSE 24 NC Not used Not used 25 SEL2b I 26 INH1 27 SEL1a O O Selector change for AMP output 28 SEL1b O Selector change for AMP output 29 RX1 BUS 30 TX BUS 31 PDO O PLL data output 32 PDI I Pll data input 33 pck O PLL clock output 34 ANT1 O Not used 35 40 NC 41 ANT0 ...

Page 29: ...everse select output 81 PLAY MS gain select output 82 mtl I Tape loading detect input 83 NR O NR ON OFF output 84 CSLOAD I Tape loading detect input 85 POS I Position sense input 86 ES I Tape end sense input 87 SC2 O Sub motor control output 88 SC1 O Sub motor control output 89 CM O Capstan motor control output 90 stby O Stand by output 91 92 NC Not used 93 SL Signal level 94 ILL Illumination 95 S...

Page 30: ...able Active at High To be grounded at 47kΩ 17 AMPNS AM PNS IF signal IF signal output for AM PNS circuit 18 LDET O lock detector Active at Low To be pulled up to the VDD at 47kΩ 19 CREQ I current request Active at Low To be grounded at 47kΩ 20 AMINI AM audio input The frequency response and the level are set by connecting an external CR network with terminal AMIN as terminal AMDET r in 50kΩ 21 COM...

Page 31: ...EER or OTHER MAKERS SPEAKER 1 Standard system 1DIN HEAD UNIT AVC LAN B ACC B ACC AVC LAN CD CH EMV OTHER MAKERS NAVI ECU OTHER MAKERS AVC LAN 2 RSA option system L R AVC LAN RGB L R AMPLIFIER PIONEER or OTHER MAKERS SPEAKER 1DIN HEAD UNIT AVC LAN B ACC RSA EMV OTHER MAKERS NAVI ECU OTHER MAKERS AVC LAN CD CH L R AVC LAN L R ...

Page 32: ...PEAKER DVD P OTHER MAKERS RSE ECU OTHER MAKERS 1DIN HEAD UNIT HEAD PHONE OTHER MAKERS 3 RSE option system EXTENSION UNIT OTHER MAKERS INFRARED HEAD PHONE REMOTE CONTROLLER L R L R L R AVC LAN AVC LAN AVC LAN B ACC CD CH PIONEER OTHER MAKERS EMV NAVI ECU OTHER MAKERS AVC LAN AVC LAN L R NTSC L R L R NTSC L R ...

Page 33: ...OPERATIONAL FLOW CHART VCC 5V Pin 62 Power ON BSENS L ASENS L YES VDD 5V Pin 16 bsens Pin 75 asens Pin 73 SYSPWR H Pin 1 IPPW H Pin 22 SWVDD H Pin 11 Source keys operative Completes power on operation After that proceed to each source operation Source ON ...

Page 34: ... C D F A B E 7 4 CLEANING Before shipping out the product be sure to clean the following portions by using the prescribed cleaning tools Portions to be cleaned Cleaning tools Cassette heads Pinch rollers Capstans Cleaning paper GED 008 ...

Page 35: ... Belgium PIONEER ELECTRONICS ASIACENTRE PTE LTD 253 Alexandra Road 04 01 Singapore 159936 PIONEER CORPORATION 2002 K ZZS AUG 2002 Printed in Japan 8 OPERATIONS RADIO MANUAL TUNING POWER ON OFF VOLUME AM SEEK UP DOWN FM CD DVD DISC SELECT CD DVD DIRECTION CHANGE TAPE AUTO PROGRAM SEARCH TRACK SELECT EJECT TAPE TRAFFIC INFORMATION KEX M8727ZT UC KEX M8527ZT UC POWER ON OFF VOLUME POWER ON OFF VOLUME...

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