PIONEER GM-X742 Service Manual

Cover page of PIONEER GM-X742 Service Manual

Service Manual for PIONEER GM-X742, downloadable as a PDF file.

We also have owner's manual to this model.

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PIONEER CORPORATION
4-1, Meguro 1-Chome, Meguro-ku, Tokyo 153-8654, Japan
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. JAN. 2000 Printed in Japan
ORDER NO.
CRT2454
BRIDGEABLE POWER AMPLIFIER
GM-X942
X1R/UC,EW,ES
Service
Manual
CONTENTS
1. SAFETY INFORMATION ............................................2
2. EXPLODED VIEWS AND PARTS LIST .......................2
3. SCHEMATIC DIAGRAM .............................................8
4. PCB CONNECTION DIAGRAM ................................20
5. ELECTRICAL PARTS LIST ........................................28
6. ADJUSTMENT..........................................................33
7. GENERAL INFORMATION .......................................34
7.1 DISASSEMBLY ...................................................34
7.2 IC .........................................................................36
8. OPERATIONS AND SPECIFICATIONS.....................37
GM-X742
X1R/UC,EW,ES
GM-X942/X1R/UC
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PIONEER CORPORATION
4-1, Meguro 1-Chome, Meguro-ku, Tokyo 153-8654, Japan
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. JAN. 2000 Printed in Japan
ORDER NO.
CRT2454
BRIDGEABLE POWER AMPLIFIER
GM-X942
X1R/UC,EW,ES
Service
Manual
CONTENTS
1. SAFETY INFORMATION ............................................2
2. EXPLODED VIEWS AND PARTS LIST .......................2
3. SCHEMATIC DIAGRAM .............................................8
4. PCB CONNECTION DIAGRAM ................................20
5. ELECTRICAL PARTS LIST ........................................28
6. ADJUSTMENT..........................................................33
7. GENERAL INFORMATION .......................................34
7.1 DISASSEMBLY ...................................................34
7.2 IC .........................................................................36
8. OPERATIONS AND SPECIFICATIONS.....................37
GM-X742
X1R/UC,EW,ES
GM-X942/X1R/UC
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2
GM-X942,X742
2. EXPLODED VIEWS AND PARTS LIST
2.1 PACKING
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.
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.
WARNING
This product contains lead in solder and certain electrical parts contain chemicals which are known to the state of
California to cause cancer, birth defects or other reproductive harm.
Health & Safety Code Section 25249.6 - Proposition 65
1. SAFETY INFORMATION
- GM-X942/X1R/UC, GM-X742/X1R/UC
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3
GM-X942,X742
1 Screw Assy
HEA0049
2 Screw
BYC40P180FZK
3 Polyethylene Bag
HEG0011
4 Polyethylene Bag
HEG0022
5 Carton
See Contrast table(2)
6 Contain Box
See Contrast table(2)
7 Protector
HHP0076
8-1 Owner's Manual
See Contrast table(2)
*
8-2 PRC
See Contrast table(2)
*
8-3 Warranty Card
See Contrast table(2)
8-4 Owner's Manual
See Contrast table(2)
Mark No. Description
Part No.
Mark No. Description
Part No.
(1) PACKING SECTION PARTS LIST(GM-X942/X1R/UC, EW, ES)
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.
Part No.
Mark No. Symbol and Description GM-X942/X1R/UC
GM-X942/X1R/EW
GM-X942/X1R/ES
5 Carton
HHG0229
HHG0230
HHG0231
6 Contain Box
HHL0229
HHL0230
HHL0231
8-1 Owner's Manual
HRD0123
HRD0124
HRD0125
*
8-2 PRC
HRY0012
Not used
Not used
*
8-3 Warranty Card
HRY1070
HRY1157
Not used
8-4 Owner's Manual
Not used
Not used
HRD0126
(2) CONTRAST TABLE
GM-X942/X1R/UC, EW and ES are constructed the same except for the following:
1 Screw Assy
HEA0049
2 Screw
BYC40P180FZK
3 Polyethylene Bag
HEG0011
4 Polyethylene Bag
HEG0022
5 Carton
See Contrast table(2)
6 Contain Box
See Contrast table(2)
7 Protector
HHP0077
8-1 Owner's Manual
See Contrast table(2)
*
8-2 Warranty Card
See Contrast table(2)
8-3 Owner's Manual
See Contrast table(2)
Mark No. Description
Part No.
Mark No. Description
Part No.
(1) PACKING SECTION PARTS LIST(GM-X742/X1R/UC, EW, ES)
Part No.
Mark No. Symbol and Description GM-X742/X1R/UC
GM-X742/X1R/EW
GM-X742/X1R/ES
5 Carton
HHG0232
HHG0233
HHG0234
6 Contain Box
HHL0232
HHL0233
HHL0234
8-1 Owner's Manual
HRD0123
HRD0124
HRD0125
*
8-2 Warranty Card
HRY1070
HRY1157
Not used
8-3 Owner's Manual
Not used
Not used
HRD0126
(2) CONTRAST TABLE
GM-X742/X1R/UC, EW and ES are constructed the same except for the following:
- Owner's Manual
Model
Part No.
Language
GM-X942/X1R/UC
HRD0123
English, French
GM-X742/X1R/UC
GM-X942/X1R/EW
HRD0124
English, Spanish, German,
GM-X742/X1R/EW
French, Italian, Dutch
GM-X942/X1R/ES
HRD0125
English, Spanish
GM-X742/X1R/ES
HRD0126
Portuguese(B), Arabic
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4
GM-X942,X742
2.2 EXTERIOR(GM-X942/X1R/UC, EW, ES)
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GM-X942,X742
1 Screw
BSZ30P050FZK
2 Screw(M3x6)
CBA1320
3 Screw(M3x12)
CBA1323
4 Screw(M3x5)
HBA0006
5 Screw(M3x8)
HBA0011
6 Screw(M2.6x6)
HBA0012
7 Panel
See Contrast table(2)
8 Case
See Contrast table(2)
9 Heat Sink
See Contrast table(2)
10 Plate
HNS0077
11 Plate
HNS0081
12 Spacer
HNV0016
13 Amp Unit
See Contrast table(2)
14 Screw
BBZ30P060FMC
15 Screw(M3x14)
CBA1382
16 Terminal(CN902)
CKF1059
17 Fuse(30A)
HEK0030
18 Pin Jack(CN851)
HKB0002
19 Pin Jack(CN852)
HKB0002
20 Fuse Holder
HKE0012
21 Terminal(CN901)
HKE0020
22 Terminal(CN651)
HKE0021
23 Terminal(CN652)
HKE0021
24 Clip
HNC0054
25 Buss Bar
HNC0064
26 Buss Bar
HNC0065
27 Heat Sink
HNR0115
28 Heat Sink
HNR0116
29 Bar
HNR0124
30 Screw
PPZ30P100SAD
31 Light Pipe Unit
HXA0322
32 Screw
PPZ30P100FZK
33 Thermistor(TH901, 902)
CCX1013
34 Transistor(Q908)
2SB1566
35 Transistor(Q907)
2SD2395
36 Diode(D907)
FML22S
37 Diode(D910)
FML22R
38 FET(Q905, 906, 911, 912) STP50NE08
39 FET(Q563, 564, 565, 566) 94-4980
40 FET(Q567, 568, 569, 570) 94-4981
41 Transistor(Q573, 574)
2SC1845
42 Beads Core
See Contrast table(2)
(1) EXTERIOR SECTION PARTS LIST
Mark No. Description
Part No.
Mark No. Description
Part No.
5
Part No.
Mark No. Symbol and Description GM-X942/X1R/UC
GM-X942/X1R/EW
GM-X942/X1R/ES
7 Panel
HNB0118
HNB0105
HNB0118
8 Case
HNB0119
HNB0107
HNB0119
9 Heat Sink
HNR0153
HNR0161
HNR0153
13 Amp Unit
HWH0115
HWH0119
HWH0120
42 Beads Core
Not used
CTF1355
CTF1355
(2) CONTRAST TABLE
GM-X942/X1R/UC, EW and ES are constructed the same except for the following:

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