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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-ZZS. NOV. 2000 Printed in Japan
ORDER NO.
CRT2615
BRIDGEABLE FOUR-CHANNEL POWER AMPLIFIER
GM-X354
X1R/UC,EW,ES
Service
Manual
GM-X354/X1R/EW
CONTENTS
1. SAFETY INFORMATION............................................2
2. EXPLODED VIEWS AND PARTS LIST ......................2
3. SCHEMATIC DIAGRAM .............................................6
4. PCB CONNECTION DIAGRAM..................................8
5. ELECTRICAL PARTS LIST........................................12
6. ADJUSTMENT .........................................................15
7. GENERAL INFORMATION.......................................16
7.1 DISASSEMBLY ..................................................16
8. OPERATIONS AND SPECIFICATIONS ....................17


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2
GM-X354
2. EXPLODED VIEWS AND PARTS LIST
2.1 PACKING
1. SAFETY INFORMATION
- GM-X354/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-X354
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-X354/X1R/UC
HRD0163
English, French
GM-X354/X1R/EW
HRD0160
English, Spanish, German,
French, Italian, Dutch
GM-X354/X1R/ES
HRD0164
English, Spanish
HRD0175
Portuguese(B), Arabic
- PACKING SECTION PARTS LIST
Part No.
Mark No. Description
GM-X354/X1R/UC
GM-X354/X1R/EW
GM-X354/X1R/ES
*
1-1 Warranty Card
Not used
HRY1157
Not used
1-2 Owner's Manual
HRD0163
HRD0160
HRD0164
1-3 Owner's Manual
Not used
Not used
HRD0175
*
1-4 Card
ARY1048
Not used
Not used
2 Screw
BYC40P180FZK
BYC40P180FZK
BYC40P180FZK
3 Polyethylene Bag
HEG0011
HEG0011
HEG0011
4 Polyethylene Bag
HEG0013
HEG0013
HEG0013
5 Carton
HHG0279
HHG0279
HHG0279
6 Contain Box
HHL0279
HHL0279
HHL0279
7 Protector
HHP0106
HHP0106
HHP0106
8 Cord Assy
HDE0036
HDE0036
HDE0036
9 Cover
HNS0101
HNS0101
HNS0101


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4
GM-X354
2.2 EXTERIOR
A


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5
GM-X354
(1) EXTERIOR SECTION PARTS LIST
Mark No. Description
Part No.
Mark No. Description
Part No.
1 Screw
PPZ30P100FZK
2 Screw
BBZ30P050FMC
3 Screw
BBZ30P060FMC
4 Screw
BBZ30P080FMC
5 Screw
BSZ30P050FZK
6 Screw(M3x12)
CBA1323
7 Screw(M3x5)
HBA0006
8 Screw(M3x8)
HBA0011
9 Light Pipe Unit
HXA0322
10 Panel
See Contrast table(2)
11 Panel
See Contrast table(2)
12 Case
HNB0132
13 Holder
HNC0080
14 Heat Sink
See Contrast table(2)
15 Cover
HNS0101
16 Spacer
HNV0016
17 Amp Unit
See Contrast table(2)
18 Terminal(CN903)
CKF1059
19 Fuse(25A)
HEK0025
20 Pin Jack(CN802)
HKB0001
21 Pin Jack(CN801)
HKB0005
22 Terminal(CN851)
HKE0033
23 Terminal(CN901)
HKE0036
24 Connector(CN803)
HKM1077
25 Connector(CN804)
HKM1077
26 Buss Bar
HNC0043
27 Clip
HNC0054
28 Holder
HNC0082
29 Screw
PPZ30P100SAD
(2) CONTRAST TABLE
GM-X354/X1R/UC, EW and ES are constructed the same except for the following:
Part No.
Mark No. Description
GM-X354/X1R/UC
GM-X354/X1R/EW
GM-X354/X1R/ES
10 Panel
HNB0125
HNB0143
HNB0125
11 Panel
HNB0127
HNB0148
HNB0127
14 Heat Sink
HNR0180
HNR0188
HNR0180
17 Amp Unit
HWH0151
HWH0150
HWH0152