PIONEER GM-X944 Service Manual

Cover page of PIONEER GM-X944 Service Manual

Service Manual for PIONEER GM-X944, downloadable as a PDF file.

We also have owner's manual to this model.

Manual details

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  • The manual has 31 pages
  • File size: 2.01 MB
  • Available language versions: English
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Sample pages

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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. MAR. 2000 Printed in Japan
ORDER NO.
CRT2483
BRIDGEABLE FOUR-CHANNEL POWER AMPLIFIER
GM-X944
X1R/UC,EW,ES
Service
Manual
CONTENTS
1. SAFETY INFORMATION............................................2
2. EXPLODED VIEWS AND PARTS LIST ......................2
3. SCHEMATIC DIAGRAM .............................................6
4. PCB CONNECTION DIAGRAM................................12
5. ELECTRICAL PARTS LIST........................................18
6. ADJUSTMENT .........................................................24
7. GENERAL INFORMATION.......................................25
7.1 DISASSEMBLY ..................................................25
8. OPERATIONS AND SPECIFICATIONS ....................26
GM-X944/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. MAR. 2000 Printed in Japan
ORDER NO.
CRT2483
BRIDGEABLE FOUR-CHANNEL POWER AMPLIFIER
GM-X944
X1R/UC,EW,ES
Service
Manual
CONTENTS
1. SAFETY INFORMATION............................................2
2. EXPLODED VIEWS AND PARTS LIST ......................2
3. SCHEMATIC DIAGRAM .............................................6
4. PCB CONNECTION DIAGRAM................................12
5. ELECTRICAL PARTS LIST........................................18
6. ADJUSTMENT .........................................................24
7. GENERAL INFORMATION.......................................25
7.1 DISASSEMBLY ..................................................25
8. OPERATIONS AND SPECIFICATIONS ....................26
GM-X944/X1R/UC
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2
GM-X944
2. EXPLODED VIEWS AND PARTS LIST
2.1 PACKING
1. SAFETY INFORMATION
- GM-X944/X1R/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.
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
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3
GM-X944
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.
- Owner's Manual
Model
Part No.
Language
GM-X944/X1R/UC
HRD0138
English, French
GM-X944/X1R/EW
HRD0139
English, Spanish, German,
French, Italian, Dutch
GM-X944/X1R/ES
HRD0140
English, Spanish
HRD0141
Portuguese(B), Arabic
- PACKING SECTION PARTS LIST
Part No.
Mark No. Description
GM-X944/X1R/UC
GM-X944/X1R/EW
GM-X944/X1R/ES
1 ·····
2 Screw
BYC40P180FZK
BYC40P180FZK
BYC40P180FZK
3 Polyethylene Bag
HEG0011
HEG0011
HEG0011
4 Polyethylene Bag
HEG0021
HEG0021
HEG0021
5 Carton
HHG0248
HHG0249
HHG0250
6 Contain Box
HHL0248
HHL0249
HHL0250
7 Protector
HHP0079
HHP0079
HHP0079
8-1 Owner's Manual
HRD0138
HRD0139
HRD0140
8-2 Owner's Manual
Not used
Not used
HRD0141
*
8-3 Warranty Card
Not used
HRY1157
Not used
*
8-4 Card
ARY1048
Not used
Not used
*
8-5 PRC
HRY0012
Not used
Not used
9 Cover
HNS0101
HNS0101
HNS0101
10 Protector
HHP0096
HHP0096
HHP0096
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4
GM-X944
2.2 EXTERIOR
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5
GM-X944
(1) EXTERIOR SECTION PARTS LIST
Mark No. Description
Part No.
Mark No. Description
Part No.
1 Screw
BSZ30P050FZK
2 Screw(M3x12)
CBA1323
3 Screw(M3x5)
HBA0006
4 Screw(M3x8)
HBA0011
5 Screw(M2.6x6)
HBA0012
6 Screw(M3x16)
HBA0020
7 Panel
See Contrast table(2)
8 Case
See Contrast table(2)
9 Holder
HNC0078
10 Heat Sink
See Contrast table(2)
11 Plate
HNS0077
12 Plate
HNS0080
13 Cover
HNS0101
14 Spacer
HNV0016
15 Amp Unit
See Contrast table(2)
16 Screw
BBZ30P060FMC
17 Screw(M3x14)
CBA1382
18 Terminal(CN905)
CKF1059
19 Plug(CN906)
CKS1035
20 Connector(CN101)
CKS3146
21 Connector(CN103)
CKS3146
22 Fuse
HEK0030
23 Pin Jack(CN852)
HKB0002
24 Pin Jack(CN851)
HKB0006
25 Fuse Holder
HKE0012
26 Terminal(CN901)
HKE0020
27 Connector(CN301)
HKE0030
28 Clip
HNC0054
29 Holder
HNC0076
30 Bar
HNR0124
31 Heat Sink
HNR0148
32 Heat Sink
HNR0149
33 Network Unit
See Contrast table(2)
34 Connector(CN102)
CKS3145
35 Connector(CN104)
CKS3145
36 Clip
HNC0054
37 Screw
PPZ30P100SAD
38 Light Pipe Unit
HXA0322
39 Fan Motor
HXM0001
40 Screw
PPZ30P100FZK
41 Thermistor(TH901, 902)
CCX1013
42 Thermistor(TH904)
CCX1027
43 FET
94-4981
(Q361, 362, 363, 364, 365, 366, 367, 368)
44 FET
STP50NE08
(Q905, 906, 911, 912, 913, 914)
45 Transistor(Q907)
2SD2395
46 Diode(D910)
FML22R
47 Transistor(Q908)
2SB1566
48 Diode(D907)
FML22S
49 FET
94-4980
(Q353, 354, 355, 356, 357, 358, 359, 360)
50 Screw
BBZ30P140FMC
51 Screw
BBZ30P060FMC
(2) CONTRAST TABLE
GM-X944/X1R/UC, EW and ES are constructed the same except for the following:
Part No.
Mark No. Description
GM-X944/X1R/UC
GM-X944/X1R/EW
GM-X944/X1R/ES
7 Panel
HNB0121
HNB0104
HNB0121
8 Case
HNB0122
HNB0106
HNB0122
10 Heat Sink
HNR0160
HNR0165
HNR0160
15 Amp Unit
HWH0134
HWH0123
HWH0135
33 Network Unit
HWG0020
HWG0016
HWG0021

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