Pioneer GM-X642 Bedienungsanleitung
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.
CRT2480
BRIDGEABLE POWER AMPLIFIER
GM-X642 X1R/EW
Service
Manual
CONTENTS
1. SAFETY INFORMATION............................................2
2. EXPLODED VIEWS AND PARTS LIST ......................3
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-X542 X1R/UC,ES
GM-X642/X1R/EW
2
GM-X642,X542
1. SAFETY INFORMATION
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-X642,X542
2. EXPLODED VIEWS AND PARTS LIST
2.1 PACKING
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.
-PACKING SECTION PARTS LIST
Part No.
Mark No. Description GM-X642/X1R/EW GM-X542/X1R/UC GM-X542/X1R/ES
1-1 Owner’s Manual HRD0136 HRD0135 HRD0137
1-2 Owner’s Manual Not used Not used HRD0143
* 1-3 Warranty Card HRY1157 Not used Not used
* 1-4 Card Not used ARY1048 Not used
2 Screw BYC40P180FZK BYC40P180FZK BYC40P180FZK
3 Polyethylene Bag HEG0011 HEG0011 HEG0011
4 Polyethylene Bag HEG0009 HEG0009 HEG0009
5 Carton HHG0242 HHG0241 HHG0243
6 Contain Box HHL0242 HHL0241 HHL0243
7 Protector HHP0078 HHP0078 HHP0078
8 •••••
9 Cover HNS0101 HNS0101 HNS0101
4
GM-X642,X542
2.2 EXTERIOR
5
GM-X642,X542
(1) EXTERIOR SECTION PARTS LIST
Mark No. Description Part No. Mark No. Description Part No.
1 Screw BBZ30P060FMC
2 Screw BBZ30P080FMC
3 Screw BSZ30P050FZK
4 Panel See Contrast table(2)
5 Case See Contrast table(2)
6 Heat Sink See Contrast table(2)
7 Plate HNS0077
8 Plate HNS0081
9 Cover HNS0101
10 Amp Unit See Contrast table(2)
11 Terminal(CN902) CKF1059
12 Pin Jack(CN851) HKB0001
13 Pin Jack(CN852) HKB0001
14 Terminal(CN901) HKE0036
15 Terminal(CN601) HKE0035
16 Clip HNC0054
17 Heat Sink HNR0151
18 Screw PPZ30P100SAD
19 Light Pipe Unit HXA0322
20 Screw PPZ30P100FZK
21 Fuse Holder HKE0012
22 Fuse(FU902)(25A) HEK0025
23 Thermistor(TH902) CCX1013
24 Screw(M2.6x6) HBA0012
(2) CONTRAST TABLE
GM-X642/X1R/EW and GM-X542/X1R/UC, ES are constructed the same except for the following:
Part No.
Mark No. Description GM-X642/X1R/EW GM-X542/X1R/UC GM-X542/X1R/ES
4 Panel HNB0111 HNB0112 HNB0112
5 Case HNB0116 HNB0114 HNB0114
6 Heat Sink HNR0150 HNR0156 HNR0156
10 Amp Unit HWH0130 HWH0129 HWH0131
ISOLATOR CIRCUIT
GAIN=1
HP/LP FILTER
80Hz
12dB/OCTAVE
POWER SUPPLY
OFF/LPF/HPF
6
GM-X642,X542
A
1234
B
C
D
1234
A-a A-b
A-a
A-a
A-b
A-b
A-b
A-b
A-a
A-a
Large size
SCH diagram
Guide page
Detailed page
A
3. BLOCK DIAGRAM AND 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
AAMP UNIT
The >mark found on some component parts indicates
the importance of the safety factor of the part.
Therefore, when replacing, be sure to use parts of
identical designation.
>
Decimal points for resistor
and capacitor fixed values
are expressed as :
2.2 2R2
0.022 R022
←
←
Symbol indicates a resistor.
No differentiation is made between chip resistors and
discrete resistors.
NOTE :
Symbol indicates a capacitor.
No differentiation is made between chip capacitors and
discrete capacitors.
AMP
GAIN=7-31dB
BASS BOOST
60Hz
0-18dB/OCTAVE
/EW, ES
BFC
HEK0025
FU902
7
GM-X642,X542
5678
A
B
C
D
5678
A-b
A
10
GM-X642,X542
A
1234
B
C
D
1234
AAMP UNIT
Decimal points for resistor
and capacitor fixed values
are expressed as :
2.2 2R2
0.022 R022
←
←
S
ymbol indicates a resistor.
N
o differentiation is made between chip resistors and
d
iscrete resistors.
:
S
ymbol indicates a capacitor.
N
o differentiation is made between chip capacitors and
d
iscrete capacitors.
AMP
GAIN=7-31dB
S
S BOOST
60Hz
d
B/OCTAVE
A-a A-b
A-b
1
2
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1
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