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Service Manual - Page 1
...
4-1, Meguro 1-Chome, Meguro-ku, Tokyo 153-8654, Japan
PIONEER ELECTRONICS (USA) INC.
CRT3008
BRIDGEABLE POWER AMPLIFIER
GM-X972 XR/UC,XR/EW,XR/ES
For details, refer to "Important symbols for good services". NOV. 2002 Printed in Japan
Service
Manual
BRIDGED
BRIDGEABLE 2-CH POWER AMPLIFIER
30A
30A
GM-X972/XR/UC
ORDER NO. P.O.Box 1760, Long Beach, CA 90801-1760...
Service Manual - Page 2
...
E
glue may lead to properly and safely repair complex products such as those covered by the appropriate amount.For replacement parts or tools, the prescribed
ones should be installed before shipping out in this manual, if necessary.
5. Product safety
You should conform to restore their performances.
4.
GM-X972/XR/UC
A CAUTION
This service manual is not meant for good...
Service Manual - Page 3
...amplifiers.
EXPLODED VIEWS AND PARTS LIST 4
2.1 PACKING 4 2.2 EXTERIOR 6 3. ELECTRICAL PARTS LIST 18
6. ADJUSTMENT 20
7. GM-X972/XR/UC
5
6
7
C
D
E
F 3 8 SCHEMATIC DIAGRAM 8 3.1 OVERALL CONNECTION DIAGRAM(GUIDE PAGE)....8 4. SPECIFICATIONS...(H) × 12-1/8 (D) in]
Weight ...3.7 kg (8.2 lbs) (Leads for wiring not included) Maximum power output ...300 W × 2 / 800 W ...
Service Manual - Page 4
EXPLODED VIEWS AND PARTS LIST
2.1 PACKING
A
B
C
D
E
F
4
GM-X972/XR/UC
1
2
3
4 1
2
3
4
2.
Service Manual - Page 5
..., Italian, Dutch HRD0222 English, Spanish HRD0223 Portuguese(B), Arabic
D
E
F
GM-X972/XR/UC
5
5
6
7
8 PACKING SECTION PARTS LIST
Mark No. Screws adjacent to ∇ mark on the product are not in this manual.
( In the case of lubricants or glue, follow the instructions in our Master Spare Parts List.
-
Owner's Manual Part No. For the applying amount of no amount...
Service Manual - Page 8
1
2
3
4
3. SCHEMATIC DIAGRAM
3.1 OVERALL CONNECTION DIAGRAM(GUIDE PAGE)
Large size
A-a
A-b
SCH diagram
A
A-a A-b Guide page
A AMP UNIT
A-a
A-a
A-b Detailed page
B
GAIN = 1
LPF SELECT
HCS0003 10kΩ(A)
GAIN = -12dB
HCS0003 10kΩ(A)
C
LPF SELECT
D
E
F
8A
1
75µH 75µH
GM-X972/XR/UC
2
3
EW, ES ONLY BFC
4
Service Manual - Page 9
...made between chip resistors and discrete resistors. Therefore, when replacing, be sure to use parts of the part. 5
6
7
8
A-b
A
AMPLIFIER GAIN = 11.5 - 41.8dB
B
C
D
...on some component parts indicates the importance of the safety factor of identical designation.
← ←
Decimal points for resistor and capacitor fixed values are expressed as : 2.2 2R2 0.022 R022
GM-X972/XR/UC
5...
Service Manual - Page 14
...GM-X972/XR/UC
1
2
3
4 1
2
3
4
4. SIDE A
For further information for
several destination.
R+
SPEAKER
INPUT
C
R+ L+ R-
L+
3
1
R- PCB CONNECTION DIAGRAM
4.1 AMP UNIT
NOTE FOR PCB DIAGRAMS
2.Viewpoint of PCB diagrams
1.The parts mounted on this PCB
Connector Capacitor
A
include all necessary parts for
respective destinations, be sure
to check with the schematic...
Service Manual - Page 18
...CCS....., CSZS.....
=====Circuit Symbol and No.===Part Name
Part No
B
A Unit Number : HWH0194 (UC) : HWH0195 (EW)
: HWH0196 (ES)
Unit Name : Amp Unit
MISCELLANEOUS
IC 101 IC IC 301 ...RD1/4PU102J
18
GM-X972/XR/UC
1
2
3
4 ELECTRICAL PARTS LIST
A
NOTES:
-
The part numbers shown below indicate chip components. 1
2
3
4
5. Parts whose parts numbers are omitted are subject to...
Service Manual - Page 20
ADJUSTMENT
There is no information to be shown in this chapter. E
F
20
GM-X972/XR/UC
1
2
3
4 1
2
3
4
=====Circuit Symbol and No.===Part Name
Part No
C 618
C 619
A
C 620
C 621
C 622
CEAT2R2M50 CEAT101M16 CQMA472J50 CQMA472J50 CQMA102J50
C 623 3900µF/16V C 624 3900µF/16V C 628 C 631 C 632
HCH0018 HCH0018 CFTNA564J50 ...
Service Manual - Page 21
... the Case.
- Removing the Amp Unit (Fig.1)
Panel
1 Remove the eight screws. B
1
1
1
1
2 Remove the screw and then remove
the two Panels.
3 Remove the eight screws and then
remove the two Heat Sinks.
4 Remove the five screws and then
remove the Amp Unit.
3
4
4
3
C
3
3
4
3
3
3
3
D
4
4
1
1
2
1
1
E
Heat Sink
Amp Unit
Panel
Heat Sink
Fig.1
F
GM-X972/XR/UC
21...
Service Manual - Page 22
1
2
3
4
7.1.2 CONNECTOR FUNCTION DESCRIPTION
A
- GM-X972/XR/UC
6.5V 0.2V
B
C
BRIDGED
D
BRIDGEABLE 2-CH POWER AMPLIFIER
30A
30A
E
F
22
GM-X972/XR/UC
1
2
3
4
Service Manual - Page 23
GM-X972/XR/UC
5
6
7
8 A
B
C
D
E
F 23 8
Be careful in handling them because they are very liable to be damaged by * are MOS type. STAND-BY GND INVERTING INPUT NON INVERTING INPUT
SIGNAL GND CLIP AND SHORT CIRCUIT DETECTOR
BOOTSTRAP +Vs (SIGNAL) -Vs (SIGNAL)
STAND-BY MUTE
BUFFER DRIVER BOOTSTRAP LOADER
+Vs (POWER) OUT
-Vs (POWER...
Service Manual - Page 24
GM-X972/XR/EW GM-X972/XR/ES
LPF (Low-Pass Filter) Select Switch
Set the LPF select switch as follows according to the type of speaker that is switched on the front of the power amplifier clockwise. A
8. E
D
C
B
Power Indicator
The power indicator lights when the power is connected to the speaker output connector and the car...
Service Manual - Page 25
... terminal See the "Connecting the Speaker wires" section for speaker connection instructions.
System remote control wire (sold separately) After making all other connections at the amplifier, connect the battery wire terminal of the amplifier to the system remote control terminal of the battery. F
GM-X972/XR/UC
25
5
6
7
8 Special red battery wire [RD-223] (sold separately) Connect...
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