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Pioneer FX-MG8037ZT/EW Service Manual
Pioneer FX-MG8037ZT/EW Service Manual

Pioneer FX-MG8037ZT/EW Service Manual

Audio system head unit

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Service
Manual
AUDIO SYSTEM
HEAD UNIT
VEHICLE
DESTINATION
LEXUS RX330
EUROPE
Manufactured for TOYOTA
by PIONEER CORPORATION
RX330
PRODUCED AFTER
TOYOTA PART No.
February 2003
86120-48210
86120-48350
86120-48230
86120-48370
ORDER NO.
CRT3021
ID No.
PIONEER MODEL No.
P3918
FX-MG8037ZT/EW
P3918
FX-MG8037ZT-91/EW
P3919
FX-MG8137ZT/EW
P3919
FX-MG8137ZT-91/EW
CRT3021
PUB. NO.

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Summary of Contents for Pioneer FX-MG8037ZT/EW

  • Page 1 Service Manual ORDER NO. CRT3021 RX330 AUDIO SYSTEM HEAD UNIT VEHICLE DESTINATION PRODUCED AFTER TOYOTA PART No. ID No. PIONEER MODEL No. LEXUS RX330 EUROPE February 2003 86120-48210 P3918 FX-MG8037ZT/EW 86120-48350 P3918 FX-MG8037ZT-91/EW 86120-48230 P3919 FX-MG8137ZT/EW 86120-48370 P3919 FX-MG8137ZT-91/EW Manufactured for TOYOTA...
  • Page 2 For details, refer to "Important symbols for good services". FX-MG8037ZT/EW(P3918) FX-MG8137ZT/EW(P3919) - This service manual should be used together with the following manual(s): Model No. Order No. Mech. Module Remarks CX-1011 CRT2406 Cassette Mech. Module:Mech.Description, Disassembly CX-951 CRT2872 CD Mech. Module:Circuit Description, Mech.Description, Disassembly - Dolby noise reduction manufactured under license from Dolby Laboratories Licensing Corporation.
  • Page 3: Block Diagram And Schematic Diagram

    S41 LOAD3 LOADSW2 S11 CAMCLMP CN101 M3 CARRIAGE M1 CAMGEAR CN31 CN14 M2 ELV S32 CAMEOK CAMOK S31 CAMLOAD CAMLOAD PCB UNIT (LED) VR11 ELVSNS VR1 ELV SENSE EREF CN13 LOADPHT PCB UNIT S21 LOAD1 (LOAD) LOADSW1 S22 LOAD2 LOADING FX-MG8037ZT/EW...
  • Page 4 DECK UNIT CONTROL UNIT(G2T) CN252 CN353 CN251 AUDIO+B EQ AMP TAPE+B L-ch IC251 HA12216F L-ch CN254 MUTE MECHANISM MOTOR DRIVER STBY IC351 PA2020A CN255 MAIN LOAD MOTOR CN253 CN256 SENSOR UNIT Q101 REEL SENSE S101 S102 S103 LOAD MODE 70µs FX-MG8037ZT/EW...
  • Page 5 ILLB Q908 ENC1P Q905 ENC1M ILLB Q901 ILLB Q906 CDILLG CDILLR ILLCONT VR901 POWER•VOL IC 901 Q902 LC75804W KEY CONTROLLER LCD DRIVER MATRIX CN903 CN905 ILL2 KST2 LCDBL ENC2P ENC2M LCD901 KDT1 KEYBOARD PCB VR902 AUDIO CONTROL•TUNE RIGHT PCB FX-MG8037ZT/EW...
  • Page 6: Overall Connection Diagram(Guide Page)

    3.3 OVERALL CONNECTION DIAGRAM(GUIDE PAGE) Note: When ordering service parts, be sure to refer to " EXPLODED VIEWS AND PARTS LIST" or "ELECTRICAL PARTS LIST". Large size SCH diagram FM/AM TUNER UNIT FM(30%,400Hz):-24.9dBs FX-MG8037ZT/EW FX-MG8137ZT/ AM(30%,400Hz):-11.8dBs ANTENNA C411 R022 MAIN UNIT...
  • Page 7 TUNER MIXING AMP UNBALANCE TO BALANCE SYSTEM MUTE AUDIO SELECTOR FM: -9.6dBs FOR AMP FX-MG8137ZT/EW AM:-11.5dBs TAPE: -7.5dBs CD: +2.3dBs FX-MG8037ZT/EW FX-MG8137ZT/EW UNBALANCE TO BALANCE SYSTEM MUTE AUDIO SELECTOR FOR RSA > FM: -3.9dBs AM: -5.8dBs TAPE: -1.9dBs CD:+8.0dBs...
  • Page 8 FX-MG8037ZT/EW...
  • Page 9 FX-MG8037ZT/EW...
  • Page 10 FX-MG8037ZT/EW...
  • Page 11 FX-MG8037ZT/EW...
  • Page 12: Keyboard Unit

    3.4 KEYBOARD UNIT KEYBOARD PCB LEFT PCB POWER•VOL SEEK•TRACK TAPE EJECT TEXT CD EJECT LOAD SEEK•TRACK DISC TAPE CN804 FX-MG8037ZT/EW...
  • Page 13 RIGHT PCB AUDIO CONTROL• TUNE 2SC4116 R998 4R7K FX-MG8037ZT/EW...
  • Page 14: Cd Mechanism Module(Guide Page)

    LOAD2 LOADING MOTOR CAMGEAR MOTOR M1 CXC1144 PCB UNIT(LOAD) SIGNAL LINE FOCUS SERVO LINE TRACKING SERVO LINE CARRIAGE SERVO LINE SPINDLE SERVO LINE : The power supply is shown with the marked box. C D E F G H FX-MG8037ZT/EW...
  • Page 15 CONTROL UNIT(G2T) MUTE 3.3V-5V CONVERTER BUFFER RAM SHOCK PROOF MEMORY CONTROLLER & 5V-3.3V CONVERTER 3.3V REGULATOR 5V REGULATOR MECHANISM CONTROLLER FX-MG8037ZT/EW...
  • Page 16 F G H FX-MG8037ZT/EW...
  • Page 17 FX-MG8037ZT/EW...
  • Page 18 CN351 FX-MG8037ZT/EW...
  • Page 19 FX-MG8037ZT/EW...
  • Page 20: Cassette Mechanism Module

    C252 390P HA12216F MSOUT Fwd-L R281 0R0 R273 FIN(R) MSGV C251 390P VREF DOLBY B NR 120/70 RIN(R) R255 R296 NFI(R) HEAD ASSY EXA1594 TEST TAPE NCT-150 R257 (400Hz, 200nWb/m) R259 VR301 CCP1280 33K(B) C272 R1 CN251 -8.24dBs(300mV)±1dB CN353 FX-MG8037ZT/EW...
  • Page 21 R373 load LOAD S101 R275 ESG1007x3 C405 R033 SENSOR UNIT R404 270K CN254 MOTOR UNIT (SUB MOTOR) VCC2 EXA1623 R374 MECHANISM DRIVER C356 C355 SWITCHES: SENSOR UNIT S101:LOAD SWITCH..EJECT-PLAY S102:MODE SWITCH....ON-OFF S103:70µs SWITCH....ON-OFF The underlined indicates the switch position. FX-MG8037ZT/EW...
  • Page 22: Connection Diagram

    SP Line AUI- AUI+ M/L AMP SYSTEM cannot use GGD1317. Because, external connector is different from pioneer AMP and M/L AMP(PIO:24P-20P,M/L:25P-16P). Moreover, GGD1240 which is a previous jig cannot be used (Because the signal array is different). Therefore, when the head unit of the M/L AMP system is repaired, pioneer AMP system is used.
  • Page 23 SP Line (To DC Regulated Power Supply) M/L AMP SYSTEM cannot use GGD1317. Because, external connector is different from pioneer AMP and M/L AMP(PIO:24P-20P,M/L:25P-16P). Moreover, GGD1240 which is a previous jig cannot be used (Because the signal array is different).
  • Page 24 Extention Cord GGD1121 DECK UNIT Pin2 VR301 VR302 VR561 IC601 CN251 Pin3 L-CH R-CH Meter(1) DOLBY B NR ADJUSTMENT Test Tape Adjustment Point Adjustment Method (Switch Position) NCT-150 VR301(Lch),VR302(Rch) mV Meter(1) : –8.24dBm(300mV)±1dB (400Hz,200nwb/m) (DOLBY NR Switch : OFF) FX-MG8037ZT/EW...
  • Page 25 7.2.2 DISPLAY - LCD(CAW1722) FX-MG8037ZT/EW...
  • Page 26 7.3.1 SYSTEM BLOCK DIAGRAM - System 1 +B, ACC SPEAKER Except FL AMPLIFIER NAVI GM-8337ZT/E or OTHER MAKERS FL(or FR) OTHER MAKERS FX-MG8037ZT/EW AVC-LAN OTHER MAKERS FX-MG8137ZT/EW - System 2 +B, ACC SPEAKER AMPLIFIER GM-8337ZT/E or OTHER MAKERS FX-MG8037ZT/EW FX-MG8137ZT/EW...
  • Page 27: Operational Flow Chart

    7.3.2 OPERATIONAL FLOW CHART Power ON VCC=5V VDD=5V Pin 16 bsens Pin 75 bsens=L asens Pin 73 asens=L SWVDD←H Pin 55 IPPW←H Pin 22 SYSPWR←H Pin 43 Source keys operative Source ON Completes power-on operation. (After that, proceed to each source operation) FX-MG8037ZT/EW...
  • Page 28: Factory Settings

    After disconnecting the power supply connector and removing this product, confirm that you can see a metal plate through the hole near the "SHIP" mark on the rear chassis. Confirm that the door of the CD player is closed. FX-MG8037ZT/EW...
  • Page 29 8. OPERATIONS - FX-MG8037ZT/EW P3918 - FX-MG8137ZT/EW P3919 FX-MG8037ZT/EW...
  • Page 30 PIONEER 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-ZZD. JAN. 2003 Printed in Japan...

This manual is also suitable for:

Fx-mg8037zt-91/ewFx-mg8137zt/ewFx-mg8137zt-91/ew

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