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.
CRT2613
BRIDGEABLE FOUR-CHANNEL POWER AMPLIFIER
GM-X554
X1R/UC
Service
Manual
GM-X554/X1R/EW
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........................................16
6. ADJUSTMENT .........................................................19
7. GENERAL INFORMATION.......................................20
7.1 DISASSEMBLY ..................................................20
8. OPERATIONS AND SPECIFICATIONS ....................21
GM-X554
X1R/EW
GM-X554
X1R/ES
2
GM-X554
2. EXPLODED VIEWS AND PARTS LIST
2.1 PACKING
1. SAFETY INFORMATION
- GM-X554/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
3
GM-X554
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-X554/X1R/UC
HRD0167
English, French
GM-X554/X1R/EW
HRD0159
English, Spanish, German,
French, Italian, Dutch
GM-X554/X1R/ES
HRD0168
English, Spanish
HRD0174
Portuguese(B), Arabic
- PACKING SECTION PARTS LIST
Part No.
Mark No. Description
GM-X554/X1R/UC
GM-X554/X1R/EW
GM-X554/X1R/ES
*
1-1 Warranty Card
Not used
HRY1157
Not used
1-2 Owner's Manual
HRD0167
HRD0159
HRD0168
1-3 Owner's Manual
Not used
Not used
HRD0174
*
1-4 Card
ARY1048
Not used
Not used
2 Screw
BYC40P180FZK
BYC40P180FZK
BYC40P180FZK
3 Polyethylene Bag
HEG0011
HEG0011
HEG0011
4 Polyethylene Bag
HEG0022
HEG0022
HEG0022
5 Carton
HHG0281
HHG0281
HHG0281
6 Contain Box
HHL0281
HHL0281
HHL0281
7 Protector
HHP0107
HHP0107
HHP0107
8 Cover
HNS0101
HNS0101
HNS0101
4
GM-X554
2.2 EXTERIOR
A
5
GM-X554
(1) EXTERIOR SECTION PARTS LIST
Mark No. Description
Part No.
Mark No. Description
Part No.
1 Screw
BBZ30P050FMC
2 Screw
BBZ30P060FMC
3 Screw
BBZ30P080FMC
4 Screw
BSZ30P050FZK
5 Screw(M3x12)
CBA1323
6 Screw(M3x5)
HBA0006
7 Screw(M3x8)
HBA0011
8 Panel
See Contrast table(2)
9 Case
HNB0134
10 Panel
See Contrast table(2)
11 Holder
HNC0080
12 Heat Sink
See Contrast table(2)
13 Cover
HNS0101
14 Spacer
HNV0016
15 Amp Unit
See Contrast table(2)
16 Terminal(CN604)
CKF1059
17 Fuse(20A)
HEK0020
18 Pin Jack(CN852)
HKB0002
19 Pin Jack(CN851)
HKB0006
20 Terminal(CN601)
HKE0020
21 Connector(CN301)
HKE0030
22 Clip
HNC0054
23 Holder
HNC0082
24 Screw
PPZ30P100SAD
25 Light Pipe Unit
HXA0322
26 Screw
PPZ30P100FZK
(2) CONTRAST TABLE
GM-X554/X1R/UC, EW and ES are constructed the same except for the following:
Part No.
Mark No. Description
GM-X554/X1R/UC
GM-X554/X1R/EW
GM-X554/X1R/ES
8 Panel
HNB0128
HNB0147
HNB0128
10 Panel
HNB0136
HNB0142
HNB0136
12 Heat Sink
HNR0181
HNR0187
HNR0181
15 Amp Unit
HWH0148
HWH0147
HWH0149