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Service
Manual
BRIDGEABLE POWER AMPLIFIER
GM-X642
GM-X542
CONTENTS
1. SAFETY INFORMATION............................................2
2. EXPLODED VIEWS AND PARTS LIST ......................3
3. SCHEMATIC DIAGRAM.............................................6
4. PCB CONNECTION DIAGRAM................................12
5. ELECTRICAL PARTS LIST........................................16
PIONEER CORPORATION
PIONEER ELECTRONICS SERVICE INC.
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
GM-X642/X1R/EW
X1R/UC,ES
4-1, Meguro 1-Chome, Meguro-ku, Tokyo 153-8654, Japan
P.O.Box 1760, Long Beach, CA 90801-1760 U.S.A.
6. ADJUSTMENT .........................................................19
7. GENERAL INFORMATION.......................................20
7.1 DISASSEMBLY ..................................................20
8. OPERATIONS AND SPECIFICATIONS ....................21
K-ZZA. MAR. 2000 Printed in Japan
ORDER NO.
CRT2480
X1R/EW
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Summary of Contents for Pioneer GM-X642
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Page 1: Table Of Contents
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. MAR. 2000 Printed in Japan... -
Page 2: Safety Information
GM-X642,X542 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: Exploded Views And Parts List
GM-X642,X542 2. EXPLODED VIEWS AND PARTS LIST 2.1 PACKING NOTE: - Parts marked by “*” are generally unavailable because they are not in our Master Spare Parts List. - Screws adjacent to ∇ mark on the product are used for disassembly. - Page 4 GM-X642,X542 2.2 EXTERIOR...
- Page 5 12 Pin Jack(CN851) HKB0001 13 Pin Jack(CN852) HKB0001 14 Terminal(CN901) HKE0036 15 Terminal(CN601) HKE0035 (2) CONTRAST TABLE GM-X642/X1R/EW and GM-X542/X1R/UC, ES are constructed the same except for the following: Part No. Mark No. Description GM-X642/X1R/EW GM-X542/X1R/UC GM-X542/X1R/ES 4 Panel HNB0111 HNB0112...
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Page 6: Schematic Diagram
GM-X642,X542 3. BLOCK DIAGRAM AND 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 Guide page Detailed page ISOLATOR CIRCUIT... - Page 7 GM-X642,X542 NOTE : Symbol indicates a resistor. Decimal points for resistor No differentiation is made between chip resistors and and capacitor fixed values discrete resistors. are expressed as : ← Symbol indicates a capacitor. ← 0.022 R022 AMP UNIT No differentiation is made between chip capacitors and discrete capacitors.
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Page 12: Pcb Connection Diagram
GM-X642,X542 4. PCB CONNECTION DIAGRAM 4.1 AMP UNIT NOTE FOR PCB DIAGRAMS 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 diagram. - Page 13 GM-X642,X542 SIDE A B REMOTE...
- Page 14 GM-X642,X542 AMP UNIT...
- Page 15 GM-X642,X542 SIDE B...
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Page 16: Electrical Parts List
2SA992 Thermistor CCX1013 Transistor 2SA970 Transistor 2SA970 Thermistor CCX1013 Thermistor CCX1035 Transistor 2SC2240 Switch (OFF, LPF, HPF) CSH1029 Transistor 2SC2240 Switch (BFC)(GM-X642/X1R/EW) HSH-156 Transistor 2SA970 (BFC)(GM-X542/X1R/ES) Transistor 2SA970 94-4980 Volume 20kΩ(C) HCS0001 Volume 10kΩ(A) CCS1265 94-4981 Semi-fixed CCP1200 94-4981 Semi-fixed... - Page 17 GM-X642,X542 =====Circuit Symbol and No.===Part Name Part No. =====Circuit Symbol and No.===Part Name Part No. ------ ------------------------------------------ ------------------------- ------ ------------------------------------------ ------------------------- RESISTORS RD1/4PU101J RD1/4PU163J RD1/4PU163J RS1/10S103J RD1/4PU332J RS1/10S103J RD1/4PU332J RS1/10S103J RS1/10S103J RD1/4PU183J RS1/10S103J RD1/4PU183J RD1/4PU121J RS1/10S103J RD1/4PU121J RS1/10S472J RD1/4PU102J RS1/10S472J...
- Page 18 RS1/10S103J CEAS220M16 RD1/4PU272J 470µF/16V CCH1183 RD1/4PU272J CFTLA103J50 RS1/2PMF100J CFTLA103J50 RS1/2PMF100J CFTLA334J50 RD1/4PU153J CKSQYB223K50 RS1/10S101J CKSQYB471K50 RD1/4PU563J CKSQYB471K50 RD1/4PU105J CEAS100M16 (GM-X642/X1R/EW, GM-X542/X1R/ES) CEAS100M16 CAPACITORS CFTLA104J50 CCSQCH470J50 CFTLA104J50 CCSQCH470J50 CCSQCH271J50 CFTLA154J50 CCSQCH271J50 CFTLA154J50 CCSQCH271J50 CFTLA154J50 CCSQCH271J50 CFTLA154J50 CKSQYB471K50 CKSQYB273K25 CKSQYB471K50 CKSQYB273K25 CEAS4R7M35...
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Page 19: Adjustment
GM-X642,X542 =====Circuit Symbol and No.===Part Name Part No. =====Circuit Symbol and No.===Part Name Part No. ------ ------------------------------------------ ------------------------- ------ ------------------------------------------ ------------------------- CEAS100M16 CFTLA334J50 CEAS100M16 CKSQYB102K50 CCSSL101J50 CKSQYB102K50 CCSSL101J50 CFTLA564J50 CKSQYB122K50 CEAS101M16 CKSQYB122K50 CEAS101M16 3300µF/16V CCH1211 CKSQYB102K50 CEAS221M10 CKSQYB102K50 CEAS2R2M50 CQMA102J50... -
Page 20: General Information
GM-X642,X542 7. GENERAL INFORMATION 7.1 DISASSEMBLY Case Removing the Case and the Plate (Fig.1) Remove the four screws. Remove the screw. Remove the three screws. Remove the two screws and then remove the Case. Remove the screw and then remove the Plate. -
Page 21: Operations And Specifications
GM-X642,X542 8. OPERATIONS AND SPECIFICATIONS 8.1 OPERATIONS... - Page 22 GM-X642,X542...
- Page 23 GM-X642,X542 Connection Diagram Fuse (30 A) Special red battery wire [RD-223] (sold separately). Grommet After making all other connections at the amplifier, connect the battery wire terminal of the amplifier to the positive (+) terminal of the battery. Fuse (30 A) Ground wire (black) [RD-223] (sold separately).
- Page 24 GM-X642,X542 8.2 SPECIFICATIONS - GM-X642/X1R/EW Power source ......................14.4 V DC (10.8 — 15.1 V allowable) Grounding system ............................Negative type Current consumption ....................15.5 A (at continuous power, 4 Ω) Average current drawn* ......................5.6 A (4 Ω for two channels) 8.8 A (4 Ω...
- Page 25 GM-X642,X542 - GM-X542/X1R/UC Power source ......................14.4 V DC (10.8 — 15.1 V allowable) Grounding system ............................Negative type Current consumption ......................15.5 A (at continuous power, 4 Ω) Average current drawn* ......................5.6 A (4 Ω for two channels) 8.8 A (4 Ω...
- Page 26 GM-X642,X542 - GM-X542/X1R/ES Power source ......................14.4 V DC (10.8 — 15.1 V allowable) Grounding system ............................Negative type Current consumption ......................15.5 A (at continuous power, 4 Ω) Average current drawn* ......................5.6 A (4 Ω for two channels) 8.8 A (4 Ω...