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BRIDGEABLE POWER AMPLIFIER
GM-232
CONTENTS
1. SAFETY INFORMATION ............................................1
2. EXPLODED VIEWS AND PARTS LIST .......................2
3. SCHEMATIC DIAGRAM .............................................6
4. PCB CONNECTION DIAGRAM ..................................8
5. ELECTRICAL PARTS LIST ........................................10
PIONEER ELECTRONIC CORPORATION
PIONEER ELECTRONICS SERVICE INC.
PIONEER ELECTRONIC [EUROPE] N.V.
PIONEER ELECTRONICS ASIACENTRE PTE.LTD. 253 Alexandra Road, #04-01, Singapore 159936
C PIONEER ELECTRONIC CORPORATION 1999
GM-232/X1H/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
X1H/UC,EW,ES
6. ADJUSTMENT..........................................................13
7. GENERAL INFORMATION .......................................13
7.1 IC .........................................................................13
7.2 DISASSEMBLY ...................................................15
8. OPERATIONS AND SPECIFICATIONS.....................16
K-ZZA. FEB. 1999 Printed in Japan
ORDER NO.
CRT2360
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Summary of Contents for Pioneer GM-232 Series
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Page 1: Table Of Contents
GM-232/X1H/UC ORDER NO. CRT2360 BRIDGEABLE POWER AMPLIFIER GM-232 X1H/UC,EW,ES CONTENTS 1. SAFETY INFORMATION ..........1 6. ADJUSTMENT............13 2. EXPLODED VIEWS AND PARTS LIST .......2 7. GENERAL INFORMATION ........13 3. SCHEMATIC DIAGRAM ..........6 7.1 IC .................13 4. PCB CONNECTION DIAGRAM ........8 7.2 DISASSEMBLY ...........15 5. -
Page 2: Safety Information
GM-232 1. SAFETY INFORMATION GM-232/X1H/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 GM-232 NOTE: - Parts marked by “*” are generally unavailable because they are not in our Master Spare Parts List. ∇ mark on the product are used for disassembly. - Screws adjacent to (1) PACKING SECTION PARTS LIST Mark No. Description Part No.
- Page 4 GM-232 2.2 EXTERIOR...
- Page 5 GM-232 (1) EXTERIOR SECTION PARTS LIST Mark No. Description Part No. Mark No. Description Part No. 1 Screw BSZ30P050FZK 21 Holder HNC8118 2 Screw(M3×6) CBA1320 22 Holder See Contrast table(2) 3 Screw(M3×12) CBA1323 23 Screw PPZ30P060FZK 4 Screw(M3×5) HBA0006 24 Light Pipe Unit HXB3450 5 Screw(M2.6×8) HBA1462...
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Page 6: Schematic Diagram
GM-232 3. SCHEMATIC DIAGRAM 3.1 OVERALL CONNECTION DIAGRAM Note: When ordering service parts, be sure to refer to “EXPLODED VIEWS AND PARTS LIST” or “ELECTRICAL PARTS LIST”. - Page 7 GM-232...
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Page 8: Pcb Connection Diagram
GM-232 NOTE FOR PCB DIAGRAMS 4. PCB CONNECTION DIAGRAM 1. The parts mounted on this PCB 4.1 AMP UNIT include all necessary parts for several destination. For further information for respective destinations, be sure to check with the schematic dia- gram. - Page 9 GM-232 2. Viewpoint of PCB diagrams Capacitor Connector SIDE A SIDE B Chip Part P.C.Board SIDE B AMP UNIT...
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Page 10: Electrical Parts List
GM-232 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. - Page 11 GM-232 =====Circuit Symbol and No.===Part Name Part No. =====Circuit Symbol and No.===Part Name Part No. ------ ------------------------------------------ ------------------------- ------ ------------------------------------------ ------------------------- RS1/10S153J See Contrast table RD1/4PU561J See Contrast table RD1/4PU561J RD1/4PU392J RD1/4PU161J RD1/4PU101J RD1/4PU161J RS1/10S153J RD1/4PU473J RS1/10S102J RD1/4PU473J RS1/10S153J RD1/4PU221J See Contrast table RD1/4PU562J RD1/4PU101J...
- Page 12 GM-232 =====Circuit Symbol and No.===Part Name Part No. ------ ------------------------------------------ ------------------------- CKSQYB471K50 CKSQYB471K50 CEAS100M16 CEAS100M16 CKSQYB472K50 CKSQYB472K50 CCSQCH470J50 CCSQCH470J50 CCSQCH470J50 CCSQCH470J50 CKSQYB103K50 CKSQYB103K50 See Contrast table See Contrast table CFTLA224J50 CEAS100M16 CEAS221M10 CQMA102J50 CEAS2R2M50 CEAS101M16 3300µF/16V CCH1130 CQMA472J50 CQMA472J50 CQMA102J50 CQMA102J50 3300µF/35V CCH1200...
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Page 13: Adjustment
GM-232 6. ADJUSTMENT There is no information to be shown in this chapter. 7. GENERAL INFORMATION 7.1 PARTS 7.1.1 IC NJM2068L... - Page 14 GM-232 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)
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Page 15: Disassembly
GM-232 7.2 DIAGNOSIS 7.2.1 DISASSEMBLY Removing the Case(not shown) 1. Remove the nine screws. 2. Remove the Case. Removing the Panel Unit(not shown) 1. Remove the six screws. 2. Remove the two Panel Units. Removing the Amp Unit(Fig.1) Remove the nine screws. Use 2 pcs. -
Page 16: Operations And Specifications
GM-232 8. OPERATIONS AND SPECIFICATIONS 8.1 OPERATIONS... - Page 17 GM-232...
- Page 18 GM-232 8.2 SPECIFICATIONS - GM-232/X1H/UC, GM-232/X1H/EW, GM-232/X1H/ES Specifications Power source ......................14.4 V DC (10.8 — 15.1 V allowable) Grounding system ............................Negative type Current consumption ......................12.0 A (at continuous power, 4 Ω) Average current drawn* ......................3.5 A (4 Ω for two channels) 6.0 A (4 Ω...
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