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Pioneer GM-X372 Service Manual

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3 7 63 1515 0
Service
Manual
BRIDGEABLE POWER AMPLIFIER
GM-X372
TE
L 13942296513
www
For details, refer to "Important symbols for good services".
.
PIONEER CORPORATION
PIONEER ELECTRONICS (USA) INC.
PIONEER EUROPE NV
PIONEER ELECTRONICS ASIACENTRE PTE.LTD. 253 Alexandra Road, #04-01, Singapore 159936
C PIONEER CORPORATION 2002
http://www.xiaoyu163.com
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ao
u163
y
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4-1, Meguro 1-Chome, Meguro-ku, Tokyo 153-8654, Japan
P.O.Box 1760, Long Beach, CA 90801-1760 U.S.A.
Haven 1087 Keetberglaan 1, 9120 Melsele, Belgium
http://www.xiaoyu163.com
2 9
8
BRIDGED
BRIDGEABLE
2-CH POWER AMPLIFIER
GM-X372/XH/UC
XH/UC,XH/EW,XH/ES
Q Q
3
6 7
1 3
1 5
co
.
9 4
2 8
ORDER NO.
CRT3006
0 5
8
2 9
9 4
2 8
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K-ZZY. NOV. 2002 Printed in Japan
9 9
9 9

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Table of Contents
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  Summary of Contents for Pioneer GM-X372

  • Page 1: Service Manual

    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 2002 K-ZZY. NOV. 2002 Printed in Japan http://www.xiaoyu163.com...
  • Page 2: Safety Information

    3 7 63 1515 0 SAFETY INFORMATION - GM-X372/XH/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.
  • Page 3: Table Of Contents

    *Average current drawn • The average current drawn is nearly the maximum current drawn by this unit when an audio signal is input. Use this value when working out total current drawn by multiple power amplifiers. GM-X372/XH/UC http://www.xiaoyu163.com...
  • Page 4: Exploded Views And Parts List

    3 7 63 1515 0 2. EXPLODED VIEWS AND PARTS LIST 2.1 PACKING L 13942296513 u163 GM-X372/XH/UC http://www.xiaoyu163.com...
  • Page 5 Owner’s Manual(EW) HRD0227 Owner’s Manual(ES) HRD0228 11 Owner’s Manual(ES) HRD0229 12 Warranty Card HRY1157 L 13942296513 - Owner's Manual Part No. Language HRD0226 English, French HRD0227 English, French, Spanish, German, Italian, Dutch HRD0228 English, Spanish HRD0229 Portuguese(B), Arabic u163 GM-X372/XH/UC http://www.xiaoyu163.com...
  • Page 6: Exterior

    2.2 EXTERIOR 3 7 63 1515 0 L 13942296513 u163 GM-X372/XH/UC http://www.xiaoyu163.com...
  • Page 7 22 Light Pipe Unit HXA0391 23 Screw ISS30P055FUC 24 Screw PPZ30P100FZK 25 Screw HBA0029 26 FET(Q612,613,614,615) STP55NF06FP 27 Diode(D611) FML22R 28 Diode(D612) FML22S 29 Holder HNC0082 30 Screw BBZ30P080FMC 31 Screw HBA0030 32 Cushion HNM6623 33 Screw BBZ30P060FZK u163 GM-X372/XH/UC http://www.xiaoyu163.com...
  • Page 8: Schematic Diagram

    3.1 OVERALL CONNECTION DIAGRAM(GUIDE PAGE) Large size SCH diagram Guide page AMP UNIT Detailed page GAIN = 1 LPF SELECT GAIN = -12dB L 13942296513 LPF SELECT EW, ES ONLY 75µH UC ONLY UC ONLY 75µH u163 EW, ES ONLY GM-X372/XH/UC http://www.xiaoyu163.com...
  • Page 9 Therefore, when replacing, be sure to use parts of identical designation. EW, ES ONLY R608 R609 3R3K 3R3K EW, ES 5R1K 5R1K FU602 EW, ES ONLY HEK0025 > 50µH UC ONLY u163 GM-X372/XH/UC http://www.xiaoyu163.com...
  • Page 10 3 7 63 1515 0 L 13942296513 u163 GM-X372/XH/UC http://www.xiaoyu163.com...
  • Page 11 3 7 63 1515 0 L 13942296513 u163 GM-X372/XH/UC http://www.xiaoyu163.com...
  • Page 12 3 7 63 1515 0 L 13942296513 u163 GM-X372/XH/UC http://www.xiaoyu163.com...
  • Page 13 3 7 63 1515 0 L 13942296513 u163 GM-X372/XH/UC http://www.xiaoyu163.com...
  • Page 14: Pcb Connection Diagram

    For further information for respective destinations, be sure to check with the schematic dia- gram. 2.Viewpoint of PCB diagrams Capacitor Connector FU602 SIDE A SIDE B P.C.Board Chip Part L 13942296513 u163 SPEAKER INPUT GM-X372/XH/UC http://www.xiaoyu163.com...
  • Page 15 3 7 63 1515 0 SIDE A POWER SUPPLY SPEAKER OUTPUT L 13942296513 u163 GAIN LPF SELECT INPUT GM-X372/XH/UC http://www.xiaoyu163.com...
  • Page 16 3 7 63 1515 0 AMP UNIT L 13942296513 u163 GM-X372/XH/UC http://www.xiaoyu163.com...
  • Page 17 3 7 63 1515 0 SIDE B L 13942296513 u163 GM-X372/XH/UC http://www.xiaoyu163.com...
  • Page 18: Electrical Parts List

    Diode 1SS133 RD1/4PU101J L934BR235SRCF RD1/4PU221J Choke Coil 50µH (EW, ES) HTH0005 RD1/4PU152J Choke Coil 75µH (EW, ES) HTH0010 RS1/16S101J Choke Coil 75µH (EW, ES) HTH0010 RS1/16S102J Ferri-Inductor CTF1007 RS1/16S473J u163 Ferri-Inductor CTF1007 RS1/16S102J Transformer HTT0015 RS1/16S153J Thermistor HCX0001 GM-X372/XH/UC http://www.xiaoyu163.com...
  • Page 19: Adjustment

    RD1/4PU331J CEAT100M16 CQMA472J50 CAPACITORS CQMA472J50 CFTNA274J50 CCSRCH470J50 CFTNA274J50 CCSRCH470J50 CFTNA154J50 CCSRCH470J50 CFTNA154J50 CCSRCH470J50 CEAT100M16 CFTNA103J50 CEAT100M16 CFTNA103J50 CEAT220M50 CEAT100M16 CEAT220M50 CEAT100M16 CEAT101M50 220µF/10V HCH0012 CEAT101M50 u163 6. ADJUSTMENT There is no information to be shown in this chapter. GM-X372/XH/UC http://www.xiaoyu163.com...
  • Page 20: General Information

    Remove the screw and then remove the two Panels. Remove the four screws and then remove the two Heat Sinks. Remove the four screws and then remove the Amp Unit. L 13942296513 Heat Sink Panel Amp Unit Heat Sink Fig.1 u163 GM-X372/XH/UC http://www.xiaoyu163.com...
  • Page 21: Connector Function Description

    3 7 63 1515 0 7.1.2 CONNECTOR FUNCTION DESCRIPTION - GM-X372/XH/UC 6.5V 0.2V L 13942296513 BRIDGED BRIDGEABLE 2-CH POWER AMPLIFIER u163 GM-X372/XH/UC http://www.xiaoyu163.com...
  • Page 22 3 7 63 1515 0 7.2 IC *TDA7294V MUTE THERMAL STBY SHUTDOWN PROTECTION L 13942296513 IC's marked by * are MOS type. Be careful in handling them because they are very liable to be damaged by electrostatic induction. u163 GM-X372/XH/UC http://www.xiaoyu163.com...
  • Page 23: Operations

    3 7 63 1515 0 8. OPERATIONS L 13942296513 u163 GM-X372/XH/UC http://www.xiaoyu163.com...
  • Page 24: Connection Diagram

    If the car stereo does not have a system remote control ter- minal, connect the male terminal to the power terminal through the ignition switch. u163 GM-X372/XH/UC http://www.xiaoyu163.com...