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S
ervice
M anua l
BRIDGEABL FOUR-CHANNEL POWER AMPLIFIER
GM-X1024
GM-X924
CONTENTS
1. SAFETY INFORMATION ............................................2
2. EXPLODED VIEWS AND PARTS LIST .......................2
3. SCHEMATIC DIAGRAM .............................................8
4. PCB CONNECTION DIAGRAM ................................14
5. ELECTRICAL PARTS LIST ........................................19
6. ADJUSTMENT..........................................................25
PIONEER ELECTRONIC CORPORATION
PIONEER ELECTRONICS SERVICE INC.
PIONEER ELECTRONIC [EUROPE] N.V.
PIONEER ELECTRONICS ASIACENTRE PTE.LTD. 501 Orchard Road, #10-00, Lane Wheelock Place, Singapore 23880
C PIONEER ELECTRONIC CORPORATION 1998
GM-X1024/X1R/UC
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
X1R/UC,EW ,ES
7. GENERAL INFORMATION .......................................26
7.1 IC ........................................................................26
7.2 DISASSEMBLY ...................................................27
7.3 BLOCK DIAGRAM ..............................................28
8. OPERATIONS AND SPECIFICATIONS.....................29
K-FED. MAR. 1998 Printed in Japan
ORDER NO.
CRT2191
X1R/UC
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Summary of Contents for Pioneer GM-X1024/X1R/UC
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Page 1: Table Of Contents
P.O.Box 1760, Long Beach, CA 90801-1760 U.S.A. PIONEER ELECTRONIC [EUROPE] N.V. Haven 1087 Keetberglaan 1, 9120 Melsele, Belgium PIONEER ELECTRONICS ASIACENTRE PTE.LTD. 501 Orchard Road, #10-00, Lane Wheelock Place, Singapore 23880 C PIONEER ELECTRONIC CORPORATION 1998 K-FED. MAR. 1998 Printed in Japan... -
Page 2: Safety Information
GM-X1024,GM-X924 1. SAFETY INFORMATION 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 See Contrast table (2) * 10-3 Warranty Card See Contrast table (2) 10-4 Owner's Manual See Contrast table (2) (2) CONTRAST TABLE GM-X1024/X1R/UC, GM-X924/X1R/UC, GM-X924/X1R/EW and GM-X924/X1R/ES are constructed the same except for the following: Part No. GM-X1024 GM-X924 Mark No.
- Page 4 GM-X1024,GM-X924 2.2 EXTERIOR Fig. 2...
- Page 5 GM-X1024,GM-X924 (1) EXTERIOR SECTION PARTS LIST Mark No. Description Part No. Mark No. Description Part No. 1 Screw(M3×25) HBA0013 46 Cord(CN502) HDE5501 2 Screw(M3×12) CBA1323 47 Cord(CN552) HDE5501 3 Screw(M3×14) CBA1382 48 Cord(CN854) HDE5501 4 Sheet CNM5852 49 Cord(CN855) HDE5501 5 Screw(M3×5) HBA0006 50 Holder...
- Page 6 GM-X1024,GM-X924 (2) CONTRAST TABLE GM-X1024/X1R/UC, GM-X924/X1R/UC, GM-X924/X1R/EW and GM-X924/X1R/ES are constructed the same except for the following: Part No. GM-X1024 GM-X924 Mark No. Symbol and Description X1R/UC X1R/UC X1R/EW X1R/ES Heat Sink HNR0073 HNR0093 HNR0093 HNR0093 Amp Unit HWH0066 HWH0067...
- Page 7 GM-X1024,GM-X924...
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Page 8: Schematic Diagram
GM-X1024,GM-X924 3. SCHEMATIC DIAGRAM 3.1 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 S501:LPF/HPF -10dBm -7.7dBm -10.2dBm VR501:FREQUENCY -14.4dB Guide page VR501:FREQUENCY S501:LPF/HPF Detailed page... - Page 9 GM-X1024,GM-X924 POWER STAGE OVER CURRENT DETECTOR 20.4dBm THERMO DETECTOR / PROTECTOR OVER VOLTAGE DETECTOR / PROTECTOR MUTE CONTROL REGULATOR CONTROL 0.1V 3.2V 0.3V 0.2V 14.4V 14.4V 14.2V 0.2V 10.7V 14.4V Fig. 3 A E F...
- Page 10 GM-X1024,GM-X924...
- Page 11 GM-X1024,GM-X924 Fig. 4...
- Page 12 GM-X1024,GM-X924...
- Page 13 THERMO DETECTOR / PROTECTOR OVER VOLTAGE DETECTOR / PROTECTOR MUTE CONTROL REGULATOR CONTROL 0.1V 3.2V 0.3V 0.2V 14.4V 14.4V 14.2V 0.2V 10.7V 14.4V (AQ) A-a A-b...
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Page 14: Pcb Connection Diagram
GM-X1024,GM-X924 NOTE FOR PCB DIAGRAMS 1. The parts mounted on this PCB include all necessary parts for several destination. For further information for respective destinations, 4. PCB CONNECTION DIAGRAM be sure to check with the schematic diagram. 4.1 AMP UNIT AMP UNIT CN856 CN102... - Page 15 GM-X1024,GM-X924 2. Viewpoint of PCB diagrams Capacitor Connector SIDE A SIDE A SIDE B Chip Part P.C.Board Fig. 6...
- Page 16 GM-X1024,GM-X924 4.2 ISO PCB SIDE A Fig. 7...
- Page 17 GM-X1024,GM-X924 4.3 A LPF/HPF PCB SIDE A A LPF/HPF PCB CN854 CN503 S501 LPF/HPF FREQUENCY GAIN S501 Fig. 8 4.4 B LPF/HPF PCB SIDE A B LPF/HPF PCB CN855 CN553 S551 LPF/HPF FREQUENCY GAIN S551 Fig. 9...
- Page 18 GM-X1024,GM-X924 4.5 A P.A. PCB SIDE A A P.A. PCB CN103 Fig. 10 4.6 B P.A. PCB SIDE A B P.A. PCB CN303 Fig. 11...
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Page 19: Electrical Parts List
2SC2458 B LPF/HPF PCB A P.A.PCB Diode HZS6L(B1) B P.A.PCB Diode HZS6L(B1) Diode HZS6L(B1) Unit Number : HWG0008 Diode HZS6L(B1) (GM-X1024/X1R/UC) Diode HZS6L(B1) Unit Number : HWG0009 (GM-X924/X1R/UC) Diode HZS6L(B1) Unit Number : HWG0006 Diode HZS6L(B1) (GM-X924/X1R/EW) Diode HZS6L(B1) Unit Number : HWG0007... - Page 20 GM-X1024,GM-X924 =====Circuit Symbol and No.===Part Name Part No. =====Circuit Symbol and No.===Part Name Part No. ------ ------------------------------------------ ------------------------- ------ ------------------------------------------ ------------------------- RD1/4PU101J RN1/4PC7501D RD1/4PU471J RD1/2PM471J RD1/4PU472J RD1/4PU223J RD1/4PU621J RD1/4PU103J RD1/4PU561J RD1/4PU332J RD1/4PU333J RN1/4PC1002D RD1/4PU472J RN1/4PC1002D RD1/4PU472J RN1/4PC7501D RD1/4PU472J RN1/4PC7501D RD1/4PU472J RD1/2PM471J RD1/4PU103J RD1/4PU223J...
- Page 21 2SB1243 CCPUSL470J50 Transistor 2SC2458 CCPUSL470J50 Transistor 2SD1864 CCPUSL470J50 Transistor 2SD1919 Transistor 2SD1919 Unit Number : HWH0066(GM-X1024/X1R/UC) Unit Number : HWH0067(GM-X924/X1R/UC) Transistor 2SB1277 Unit Number : HWH0064(GM-X924/X1R/EW) Transistor 2SB1277 Unit Number : HWH0065(GM-X924/X1R/ES) IRFIZ44N Unit Name : Amp Unit IRFIZ44N IRFIZ44N...
- Page 22 GM-X1024,GM-X924 =====Circuit Symbol and No.===Part Name Part No. =====Circuit Symbol and No.===Part Name Part No. ------ ------------------------------------------ ------------------------- ------ ------------------------------------------ ------------------------- Diode 1SS133 RD1/4PU102J Diode 1SS133 RD1/4PU390J Diode 1SS133 RD1/4PU221J Diode 1SS133 RD1/4PU821J Diode 1SS133 RD1/4PU561J Diode 1SS133 RD1/4PU470J Diode HZS7L(B2) RD1/4PU470J Diode...
- Page 23 GM-X1024,GM-X924 =====Circuit Symbol and No.===Part Name Part No. =====Circuit Symbol and No.===Part Name Part No. ------ ------------------------------------------ ------------------------- ------ ------------------------------------------ ------------------------- RD1/4PU472J RD1/2PM330J RD1/4PU472J See Contrast table RD1/4PU472J RD1/2PM220J RD1/4PU103J RD1/4PU101J RD1/4PU472J CAPACITORS RD1/4PU223J RD1/4PU221J CMA150J2H RD1/4PU152J CFTLA104J50 RD1/4PU472J CFTLA104J50 RD1/4PU101J CFTLA104J50 CMA101J2H...
- Page 24 CEAS332M35 CEKA471M50 CEAS332M35 CEKA471M50 CEAS332M35 CQPA102J2A CEAS332M35 CFTLA104J50 CFTLA104J50 CONTRAST TABLE of AMP UNIT GM-X1024/X1R/UC, GM-X924/X1R/UC, GM-X924/X1R/EW and GM-X924/X1R/ES are constructed the same except for the following: Part No. Symbol and Description GM-X1024/X1R/UC GM-X924/X1R/UC GM-X924/X1R/EW GM-X924/X1R/ES S901 Switch Not used...
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Page 25: Adjustment
GM-X1024,GM-X924 6. ADJUSTMENT Item Conditions Adjustment point Specifications Idling current Input ; adjust 30 seconds after 1kΩ terminate VR101(A Lch) mV Meter(1) : 20±6mV (adjustment) power is switched on, and within 20 VR201(A Rch) seconds. VR301(B Lch) VR401(B Rch) DC-DC Converter Input ; adjust 30 seconds after 1kΩ terminate VR951 mV Meter(2) : +29±3V voltage... -
Page 26: General Information
GM-X1024,GM-X924 7. GENERAL INFORMATION 7.1 IC PA2027A Transient voltage detector Stby Bandgap DET1 Circuit motion:on DET2 Cont_V 50µA DET_R Filter 4.7kΩ Bandgap:on Switch:on Vs_out 0.13V Mute_out 5.6V Oneshot (1µsec) -
Page 27: Disassembly
GM-X1024,GM-X924 7.2 DISASSEMBLY Panel Unit - Removing the Case and the Panel Unit 1. Remove eight screws A, seven screws B and two screws C. 2. Remove Case and Panel Units. Case Panel Unit Fig. 13 B LPF/HPF PCB - Removing the Heat Sink A LPF/HPF PCB Some silicone glue has been applied between the Heat Sink and the Heat... -
Page 28: Block Diagram
GM-X1024,GM-X924 7.3 BLOCK DIAGRAM Fig. 15... -
Page 29: Operations And Specifications
A and B to the same position. • Set the gain control to “NORMAL” when this amplifier is connected to a Pioneer car stereo with RCA output jacks. If the sound level is too low or distorts, adjust the gain control. - Page 30 Connecting the Unit CAUTION Connection Diagram • Disconnect the negative (–) terminal of the battery • Make sure that wires will not interfere with mov- Fuse (30 A) to avoid the risk of short-circuit and damage to ing parts of the vehicle, such as the gearshift, the unit.
- Page 31 BFC switch using a small to the same position. screwdriver. • Set the gain control to “NORMAL” when this amplifier is connected to a Pioneer car stereo with RCA output jacks. If the sound level is too low or distorts, adjust the gain control.
- Page 32 Connecting the Unit CAUTION Connection Diagram • Disconnect the negative (–) terminal of the bat- • Make sure that wires will not interfere with mov- Fuse (30 A) tery to avoid the risk of short-circuit and damage ing parts of the vehicle, such as the gearshift, to the unit.
- Page 33 - GM-X1024/X1R/UC - GM-X924/X1R/UC, GM-X924/X1R/EW, GM-X924/X1R/ES Specifications Specifications Power source ......................14.4 V DC (10.8 — 15.1 V allowable) Power source ......................14.4 V DC (10.8 — 15.1 V allowable) Grounding system ............................Negative type Grounding system ............................Negative type Current consumption ......................