PIONEER ELECTRONICS SERVICE INC. P.O.Box 1760, Long Beach, CA 90801-1760 U.S.A. PIONEER EUROPE N.V. Haven 1087 Keetberglaan 1, 9120 Melsele, Belgium PIONEER ELECTRONICS ASIACENTRE PTE.LTD. 253 Alexandra Road, #04-01, Singapore 159936 C PIONEER CORPORATION 2000 K-ZZA. JAN. 2000 Printed in Japan...
GM-X942,X742 1. SAFETY INFORMATION - GM-X942/X1R/UC, GM-X742/X1R/UC CAUTION This service manual is intended for qualified service technicians; it is not meant for the casual do-it-yourselfer. Qualified technicians have the necessary test equipment and tools, and have been trained to properly and safely repair complex products such as those covered by this manual.
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See Contrast table(2) 5 Carton 8-3 Owner’s Manual See Contrast table(2) See Contrast table(2) (2) CONTRAST TABLE GM-X742/X1R/UC, EW and ES are constructed the same except for the following: Part No. Mark No. Symbol and Description GM-X742/X1R/UC GM-X742/X1R/EW GM-X742/X1R/ES 5 Carton...
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40 Transistor(Q908) 2SB1566 20 Pin Jack(CN852) HKB0002 41 Beads Core See Contrast table(2) (2) CONTRAST TABLE GM-X742/X1R/UC, EW and ES are constructed the same except for the following: Part No. Mark No. Symbol and Description GM-X742/X1R/UC GM-X742/X1R/EW GM-X742/X1R/ES 7 Panel HNB0118...
GM-X942,X742 3. SCHEMATIC DIAGRAM 3.1 OVERALL CONNECTION DIAGRAM(GUIDE PAGE)(GM-X942/X1R/UC, EW, ES) Note: When ordering service parts, be sure to refer to “EXPLODED VIEWS AND PARTS LIST” or “ELECTRICAL PARTS LIST”. Large size SCH diagram Guide page Detailed page AMP UNIT ISOLATOR CIRCUIT GAIN=1 CN851...
GM-X942,X742 4. PCB CONNECTION DIAGRAM 4.1 AMP UNIT(GM-X942/X1R/UC, EW, ES) AMP UNIT NOTE FOR PCB DIAGRAMS 1. The parts mounted on this PCB include all necessary parts for several destination. For further information for 1 2 3 1 2 3 1 2 3 1 2 3 respective destinations, be sure...
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GM-X942,X742 SIDE A 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 B REMOTE 3 2 1...
GM-X942,X742 5. ELECTRICAL PARTS LIST NOTES: - Parts whose parts numbers are omitted are subject to being not supplied. - The part numbers shown below indicate chip components. Chip Resistor RS1/_S___J,RS1/__S___J Chip Capacitor (except for CQS..) CKS.., CCS.., CSZS..=====Circuit Symbol and No.===Part Name Part No.
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GM-X942,X742 =====Circuit Symbol and No.===Part Name Part No. =====Circuit Symbol and No.===Part Name Part No. ------ ------------------------------------------ ------------------------- ------ ------------------------------------------ ------------------------- RS1/10S103J SPR30R1J RS1/10S103J SPR30R1J RS1/10S123J SPR30R1J RS1/10S123J RD1/4PU564J RS1/10S103J RD1/4PU564J RS1/10S103J RD1/4PU473J RS1/10S123J RD1/4PU473J RS1/10S123J RS1/2PMF100J RD1/4PU472J RS1/2PMF100J RD1/4PU472J RD1/4PU331J RS1/10S392J RD1/4PU331J...
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GM-X942,X742 =====Circuit Symbol and No.===Part Name Part No. =====Circuit Symbol and No.===Part Name Part No. ------ ------------------------------------------ ------------------------- ------ ------------------------------------------ ------------------------- RS1/10S472J 337RZM050M1020 RS1/10S222J 337RZM050M1020 RS1/2PMF220J CFTNA333J50 RS1/10S153J CFTNA333J50 RS1/2PMF220J CQMA102J50 RS1/10S153J CQMA102J50 RS1/10S102J CMA330J2H RD1/4PU272J CMA330J2H RS1/10S472J 220µF/10V CCH1036 RS1/10S472J CFTLA103J50 RS1/10S472J...
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GM-X942,X742 =====Circuit Symbol and No.===Part Name Part No. =====Circuit Symbol and No.===Part Name Part No. ------ ------------------------------------------ ------------------------- ------ ------------------------------------------ ------------------------- Unit Number : HWH0121(GM-X742/X1R/UC) Diode 1SS133 Diode ERA15-02VH : HWH0116(GM-X742/X1R/EW) Diode ERA15-02VH : HWH0122(GM-X742/X1R/ES) Diode RM4Z Unit Name : Amp Unit...
GM-X942,X742 7. GENERAL INFORMATION 7.1 DISASSEMBLY - GM-X942/X1R/UC, EW, ES Case Removing the Case (Fig.1) Remove the six screws. Remove the three screws. Remove the four screws and then remove the Case. Fig.1 Plate Removing the Amp Unit Remove the screw and then remove the Plate. (Fig.1) Remove the two screws.
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GM-X942,X742 - GM-X742/X1R/UC, EW, ES Case Removing the Case (Fig.3) Remove the four screws. Remove the three screws. Remove the four screws and then remove the Case. Fig.3 Plate Removing the Amp Unit Remove the screw and then remove the Plate.
RCA input jack Front side Back side GM-X942: Fuse (30 A) × 2 GM-X742: Fuse (20 A) × 2 Speaker output terminal System remote control wire (sold separately). Connect the male terminal of this wire to the system remote control terminal of the car stereo (SYSTEM REMOTE CONTROL).
GM-X942,X742 8.2 SPECIFICATIONS GM-X942/X1R/UC Power source ......................14.4 V DC (10.8 — 15.1 V allowable) Grounding system ............................Negative type Current consumption ......................26.1 A (at continuous power, 4 Ω) Average current drawn* ......................8.5 A (4 Ω for two channels) 14.6 A (4 Ω...
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GM-X942,X742 GM-X942/X1R/EW Power source ......................14.4 V DC (10.8 — 15.1 V allowable) Grounding system ............................Negative type Current consumption ....................26.1 A (at continuous power, 4 Ω) Average current drawn* ......................8.5 A (4 Ω for two channels) 14.6 A (4 Ω for one channel) Fuse ..................................
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GM-X942,X742 GM-X942/X1R/ES Power source ......................14.4 V DC (10.8 — 15.1 V allowable) Grounding system ............................Negative type Current consumption ......................26.1 A (at continuous power, 4 Ω) Average current drawn* ......................8.5 A (4 Ω for two channels) 14.6 A (4 Ω for one channel) Fuse ....................................
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GM-X942,X742 GM-X742/X1R/UC Power source ......................14.4 V DC (10.8 — 15.1 V allowable) Grounding system ............................Negative type Current consumption ......................22.1 A (at continuous power, 4 Ω) Average current drawn* ......................7.5 A (4 Ω for two channels) 12.6 A (4 Ω for one channel) Fuse ....................................
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GM-X942,X742 GM-X742/X1R/EW Power source ......................14.4 V DC (10.8 — 15.1 V allowable) Grounding system ............................Negative type Current consumption ....................22.1 A (at continuous power, 4 Ω) Average current drawn* ......................7.5 A (4 Ω for two channels) 12.6 A (4 Ω for one channel) Fuse ..................................
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GM-X942,X742 GM-X742/X1R/ES Power source ......................14.4 V DC (10.8 — 15.1 V allowable) Grounding system ............................Negative type Current consumption ......................22.1 A (at continuous power, 4 Ω) Average current drawn* ......................7.5 A (4 Ω for two channels) 12.6 A (4 Ω for one channel) Fuse ....................................