Pioneer GM-D505 Service Manual
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Pioneer GM-D505 Service Manual

Pioneer GM-D505 Service Manual

5 channel power amplifier
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Service
Manual
5 CHANNEL POWER AMPLIFIER
GM-D505
GM-D505
For details, refer to "Important symbols for good services".
PIONEER CORPORATION
PIONEER ELECTRONICS (USA) INC.
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
GM-D505/XH/EW
XH/ES, XR/ES
4-1, Meguro 1-Chome, Meguro-ku, Tokyo 153-8654, Japan
P.O.Box 1760, Long Beach, CA 90801-1760 U.S.A.
XH/EW, XR/EW
K-ZZB. MAY 2003 Printed in Japan
ORDER NO.
CRT3076

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Summary of Contents for Pioneer GM-D505

  • 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 2003 K-ZZB. MAY 2003 Printed in Japan...

  • Page 2: Safety Information

    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 qualified service technician. GM-D505/XH/EW...

  • Page 3: Table Of Contents

    • Specifications and the design are subject to possible modification without notice due to improvements. *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-D505/XH/EW...

  • Page 4: Exploded Views And Parts List

    2. EXPLODED VIEWS AND PARTS LIST 2.1 PACKING GM-D505/XH/EW...

  • Page 5: Gm-D505/Xh/Ew

    - For the applying amount of lubricants or glue, follow the instructions in this manual. ( In the case of no amount instructions, apply as you think it appropriate.) - PACKING SECTION PARTS LIST Part No. GM-D505/XH/EW GM-D505/XH/ES Mark No. Description GM-D505/XR/EW...

  • Page 6: Exterior

    2.2 EXTERIOR GM-D505/XH/EW...

  • Page 7: Gm-D505/Xh/Ew

    HWG0030 43 Connector(CN102) HKS0004 44 Clip HNC0054 45 Screw PBB30P140FMC 46 Screw PPZ30P120FZK 47 Light Pipe Unit HXA0383 48 IC(IC501,502,551,552) TDA7294V 49 FET(Q401,402) IRF5305 50 FET(Q403,404) IRFZ44E 51 Transistor(Q622) 2SD2395 52 Transistor(Q623) 2SB1566 53 Thermistor(TH601,602) CCX1013 54 Diode(D610) FML22R GM-D505/XH/EW...

  • Page 8: Schematic Diagram

    Note: When ordering service parts, be sure to refer to " EXPLODED VIEWS AND PARTS LIST" or "ELECTRICAL PARTS LIST". NETWORK PCB(1/2) A HPF SWITCH B Freq 20K(E) B HPF SWITCH B Freq Sub Freq Sub Freq NETWORK PCB(2/2) Large size SCH diagram BFC SWITCH Guide page Detailed page GM-D505/XH/EW...

  • Page 9: Gm-D505/Xh/Ew

    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. NETWORK UNIT Consists of NETWORK PCB CONNECTOR CONNECTOR PCB GM-D505/XH/EW...

  • Page 10: Gm-D505/Xh/Ew

    GM-D505/XH/EW...

  • Page 11: Gm-D505/Xh/Ew

    A-b C GM-D505/XH/EW...

  • Page 12: Gm-D505/Xh/Ew

    GM-D505/XH/EW...

  • Page 13: Gm-D505/Xh/Ew

    A-b C GM-D505/XH/EW...

  • Page 14: Gm-D505/Xh/Ew

    1 Power supply switching waveform measured at TP638 and TP639. 2 BRem TP624, Stand-by line TP253, Mute line TP254 timing diagram. 3 Class D switching audio waveform at no signal {TP413 and / or TP414} same waveform on both test points. GM-D505/XH/EW...

  • Page 15: Gm-D505/Xh/Ew

    GM-D505/XH/EW...

  • Page 16: Pcb Connection Diagram

    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 dia- gram. 2.Viewpoint of PCB diagrams Capacitor Connector SIDE A SIDE B P.C.Board Chip Part CN102 GM-D505/XH/EW...
  • Page 17 SIDE A CN703 CN702 CN701 GM-D505/XH/EW...

  • Page 18: Gm-D505/Xh/Ew

    AMP UNIT TP638 TP624 TP639 GM-D505/XH/EW...

  • Page 19: Gm-D505/Xh/Ew

    SIDE B TP414 TP413 TP253 TP254 GM-D505/XH/EW...

  • Page 20: Network Pcb

    4.2 NETWORK PCB SIDE B NETWORK PCB SIDE A NETWORK PCB CN103 4.3 CONNECTOR PCB SIDE B CONNECTOR PCB SIDE A CONNECTOR PCB GM-D505/XH/EW...

  • Page 21: Electrical Parts List

    CTF1007 STP75NF75 Ferri-Inductor CTF1007 STP75NF75 Ferri-Inductor CTF1007 STP75NF75 Ferri-Inductor CTF1007 STP75NF75 Ferri-Inductor CTF1007 STP75NF75 Transformer HTT0016 STP75NF75 Thermistor CCX1013 Transistor KSA812 Thermistor CCX1013 Transistor KSA812 Thermistor HCX0001 Transistor KSC1623 Thermistor HCX0001 Transistor KSC1623 Switch (B HPF) HSH0004 Transistor 2SD2395 GM-D505/XH/EW...
  • Page 22 RS1/16S223J RN1/10SE2402D RS1/16S223J RN1/10SE2201D RS1/16S911J RN1/10SE2201D RS1/16S911J RN1/10SE2201D RD1/4PU223J RN1/10SE2201D RD1/4PU223J RS1/16S103J RS1/2PMF100J RS1/16S103J RS1/2PMF100J RS1/16S222J RS1/16S152J RS1/16S222J RS1/16S152J RD1/4PU102J RS1/16S152J RD1/4PU102J RS1/16S152J RD1/4PU102J RD1/4PU102J RD1/4PU102J RD1/4PU473J RD1/4PU512J RD1/4PU103J RD1/4PU512J RD1/4PU103J RS1/16S474J RD1/4PU222J RS1/16S474J RD1/4PU472J RS1/16S472J RD1/4PU472J RS1/16S472J RD1/4PU472J GM-D505/XH/EW...
  • Page 23 RD1/4PU563J RS1/16S182J RD1/4PU331J RS1/16S223J RD1/4PU331J RS1/16S182J CAPACITORS RS1/16S153J RS1/2PMF100J CFTNA104J50 RS1/2PMF100J CFTNA104J50 RS1/16S272J CFTNA474J50 RS1/16S471J CFTNA474J50 RS1/16S471J CFTNA184J50 RS1/16S223J CFTNA184J50 CFTNA224J50 RS1/16S223J RN1/10SE1002D CFTNA224J50 RN1/10SE1002D CEAT100M50 RN1/10SE1002D CEAT100M50 RN1/10SE1002D CEAT100M50 RN1/10SE1002D CEAT100M50 RN1/10SE1002D CCSRCH121J50 RN1/10SE1002D CCSRCH121J50 RN1/10SE1002D CCSRCH470J50 RS1/16S562J GM-D505/XH/EW...
  • Page 24 CKSRYB331K50 3900µF/16V HCH0018 CKSRYB331K50 3900µF/16V HCH0018 CKSRYB331K50 CFTNA154J50 CKSRYB331K50 CEAT221M35 CKSRYB331K50 CEAT221M35 CKSRYB331K50 CEATR10M50 CEAT220M50 CEATR10M50 CEAT220M50 CEAT470M50 CEAT101M50 CEAT470M50 CEAT101M50 CFTNA103J50 CEAT220M50 CFTNA103J50 CEAT220M50 CFTNA103J50 CFTLA105J50 CFTNA103J50 CFTLA105J50 CQMA102J50 CFTLA105J50 3300µF/16V HCH0006 CFTLA105J50 3300µF/16V HCH0006 CKSRYB471K50 3300µF/16V HCH0006 GM-D505/XH/EW...

  • Page 25: Adjustment

    RS1/16S103J CKSRYB471K50 RS1/16S222J CKSRYB471K50 CEAT100M50 RS1/16S222J CEAT100M50 CAPACITORS CKSRYB472K50 CKSRYB472K50 CFTNA184J50 CCSRCH470J50 CFTNA184J50 CCSRCH470J50 CFTNA224J50 CCSRCH470J50 CFTNA224J50 CCSRCH470J50 CCSRCH470J50 220µF/10V HCH0012 CCSRCH470J50 CKSRYB103K50 CKSRYB103K50 CKSRYB103K50 CKSRYB103K50 CKCYB472K50 6. ADJUSTMENT There is no information to be shown in this chapter. GM-D505/XH/EW...

  • Page 26: General Information

    Remove the five screws. Remove the four screws. Remove the three screws. Remove the three Fuses and then remove the Case. Fuse Fig.1 Removing the Amp Unit (Fig.2) Remove the five screws and then remove the Amp Unit. Amp Unit Fig.2 GM-D505/XH/EW...

  • Page 27: Connector Function Description

    7.1.2 CONNECTOR FUNCTION DESCRIPTION GM-D505/XH/EW...
  • Page 28 SNR2 62 22 GNLS GNRS 63 21 GNL GNR 64 TDA7294V IC's marked by * are MOS type. Be careful in handling them because they are very liable to be damaged by electrostatic induction. MUTE THERMAL STBY SHUTDOWN PROTECTION GM-D505/XH/EW...

  • Page 29: Circuit Descriptions

    IC401 (TDA7570) is class D Chip with internal Analog to Digital Converter. (See an IC information block) IC401 (TDA7570) digitizes the analog waveform and uses PWM at 310kHz Rail to Rail Square wave to generate an audio signal that is then recovered by the 4th order LC filter. GM-D505/XH/EW...

  • Page 30: Operations

    8. OPERATIONS GM-D505/XH/EW...

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