Pioneer GMX-552 Service manual
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.
CRT2616
BRIDGEABLE POWER AMPLIFIER
GM-X552 X1R/UC
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 .........................................................18
7. GENERAL INFORMATION.......................................19
7.1 DISASSEMBLY ..................................................19
8. OPERATIONS AND SPECIFICATIONS....................20
GM-X552/X1R/EW
GM-X552
X1R/EW
GM-X552 X1R/ES
2
GM-X552
2. EXPLODED VIEWS AND PARTS LIST
2.1 PACKING
1. SAFETY INFORMATION
- GM-X552/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.
W
ARNING
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-X552
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-X552/X1R/UC HRD0165 English, French
GM-X552/X1R/EW HRD0157 English, Spanish, German,
French, Italian, Dutch
GM-X552/X1R/ES HRD0166 English, Spanish
HRD0172 Portuguese(B), Arabic
- PACKING SECTION PARTS LIST
Part No.
Mark No. Description GM-X552/X1R/UC GM-X552/X1R/EW GM-X552/X1R/ES
* 1-1 Warranty Card Not used HRY1157 Not used
1-2 Owner’s Manual HRD0165 HRD0157 HRD0166
1-3 Owner’s Manual Not used Not used HRD0172
* 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 HHG0280 HHG0280 HHG0280
6 Contain Box HHL0280 HHL0280 HHL0280
7 Protector HHP0106 HHP0106 HHP0106
8 Cord Assy HDE0036 HDE0036 HDE0036
9 Cover HNS0101 HNS0101 HNS0101
4
GM-X552
2.2 EXTERIOR
A
5
GM-X552
(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 Screw PPZ30P100FZK
9 Panel
See Contrast table(2)
10 Case HNB0133
11 Panel
See Contrast table(2)
12 Holder HNC0080
13 Heat Sink
See Contrast table(2)
14 Cover HNS0101
15 Spacer HNV0016
16 Amp Unit
See Contrast table(2)
17 Terminal(CN999) CKF1059
18 Fuse(25A) HEK0025
19 Pin Jack(CN851) HKB0002
20 Terminal(CN901) HKE0020
21 Terminal(CN902) HKE0021
22 Terminal(CN903) HKE0021
23 Connector(CN852) HKM1077
24 Holder HNC0082
25 Screw PPZ30P100SAD
26 Light Pipe Unit HXA0322
(2) CONTRAST TABLE
GM-X552/X1R/UC, EW and ES are constructed the same except for the following:
Part No.
Mark No. Description GM-X552/X1R/UC GM-X552/X1R/EW GM-X552/X1R/ES
9 Panel HNB0124 HNB0141 HNB0124
11 Panel HNB0137 HNB0145 HNB0137
13 Heat Sink HNR0180 HNR0188 HNR0180
16 Amp Unit HWH0142 HWH0141 HWH0143
LPF SELECT
LP FILTER
80Hz - 12dB/OCT
SPEAKER INPUT
A
L+ R+
L-
R-
ISOLATOR
GAIN = 1
BFC
AMP UNIT
(EW,ES mo
REGULATOR
DC/DC CONVERTER
6
GM-X552
A
1
234
B
C
D
12
34
A-a A-b
A-aA-a
A-b A-b
A-b A-b
A-a A-a
Large size
SCH diagram
Guide page
Detailed page
3. SCHEMATIC DIAGRAM
3.1 OVERALL CONNECTION DIAGRAM(GUIDE PAGE)
Note: When ordering service parts, be sure to refer to “EXPLODED VIEWS AND PARTS LIST” or “ELECTRICAL PARTS
LIST”.
A-a
A
GAIN
AMP GAIN = 6.2 - 30dB
odel)
7
GM-X552
5
6
7
8
A
B
C
D
5
6
7
8
A-b
A
8
GM-X552
A
1
234
B
C
D
12
34
LPF SELECT
LP FILTER
80Hz - 12dB/OCT
SPEAKER INPUT
A
L+ R+
L-
R-
ISOLATOR
GAIN = 1
AMP UNIT
A-a
A-b
1
A-a
2
3
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