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Service Manual - Page 1
...contact with the solder. SAFETY INFORMATION 1 2. P.O.Box 1760, Long Beach, CA 90801-1760 U.S.A. CRT2167
BRIDGEABLE POWER AMPLIFIER
GM-X422 X1R/UC, ES, EW
GM-X322 X1R/UC
CONTENTS
1. ADJUSTMENT 14 7. OPERATIONS AND SPECIFICATIONS 16
This service manual is not meant for the casual do-it -yourselfer. Improperly performed repairs can adversely affect the safety and reliability of this...
Service Manual - Page 2
... table (2) HHP0020 HEG0010 BYC40P180FZK
Mark No. Parts marked by "*"are generally unavailable because they are used for disassembly.
(1) PACKING SECTION PARTS LIST
Mark No. Screws adjacent to ∇ mark on the product are not in our Master Spare Parts List. -
Description
6 Polyethylene Bag 7 Terminal(x8) 8 Cord Assy 9-1 Owner's Manual 9-2 Owner's Manual
Part No. GM-X422, GM-X322
2.
Service Manual - Page 3
Owner's Manual Model GM-X422/X1R/UC GM-X422/X1R/ES
GM-X422/X1R/EW GM-X322/X1R/UC
Part No. GM-X422
X1R/ES
X1R/EW
HHL0135
HHL0136
HHG0135
HHG0136
HKC0003
HKC0003
HDE4419
HDE4419
HRD0045
HRD0047
GM-X322 X1R/UC HHL0133 HHG0133 HKC0003 Not used HRD0046
9-2 Owner's Manual * 9-3 Warranty Card * 9-4 Caution Card * 9-5 Card
Not used HRY1070 HRP0006 Not used
HRD0049 Not used Not used...
Service Manual - Page 5
...Part No.
GM-X422
X1R/ES
X1R/EW
HDE4453
HDE4453
HEK0015
HEK0015
HDE4455
HDE4455
HNB0073
HNB0056
HNB0072
HNB0072
GM-X322 X1R/UC Not used Not used Not used HNB0058 HNB0051
14 Heat Sink 16 Amp... Wire(Black) Panel Panel
X1R/UC Not used Not used Not used
5 GM-X422, GM-X322
(1) EXTERIOR SECTION PARTS LIST
Mark No.
BSZ30P050FZK CBA1320 CBA1323 CBA1382 HBA0006
6 Cord Assy 7 Fuse(...
Service Manual - Page 6
SCHEMATIC DIAGRAM
Note: When ordering service parts, be sure to refer to "EXPLODED VIEWS AND PARTS LIST" or "ELECTRICAL PARTS
A
LIST". 1
2
3
4
GM-X422, GM-X322
3. A MOTHER PCB
SPEAKER INPUT LEVEL UC and ES models only
10/50
10/50
L
C851, 852 UC, ES : 100P EW : 470P
LPF / HPF
R469, 470 : GM-X322 only VR452 : GM-X422 only
BASS BOOST
4R7/50
MUTE...
Service Manual - Page 7
5
6
7
8
GM-X422, GM-X322
A
MUTE
BUFFER AMP
PRE DRIVER
POWER AMP
OVER CURRENT DETECTOR
B
22/50
OVER CURRENT DETECTOR
SWITCHING CONTROL
ES and EW models only
OVER VOLTAGE PROTECTOR
POWER CONTROL / MUTE
5
6
C
ES and EW models only
HEK0015 15A
GROUND WIRE BATTERY WIRE SYSTEM REMOTE
CONTROL
D
Fig. 3
A7
7
8
Service Manual - Page 8
... of PCB diagrams
Connector Capacitor
SIDE A
A MOTHER PCB
CORD ASSY
B
P.C.Board Chip Part
SIDE B
G G
C
D
A 8
1
2
3
4 The parts mounted on this PCB include all necessary parts for respective destinations, be sure to check with the schematic diagram.
2. 1
2
3
4
GM-X422, GM-X322
4. For further information for several destination. PCB CONNECTION DIAGRAM
A
NOTE FOR PCB...
Service Manual - Page 12
... Resistor RS1/_S___J,RS1/__S___J
Chip Capacitor (except for CQS.....) CKS....., CCS....., CSZS.....
=====Circuit Symbol and No.===Part Name
GM-X422/X1R/UC
AMP UNIT Consists of MOTHER PCB ISOLATOR PCB
A B Unit Number : HWH0059 Unit Name : Amp Unit
MISCELLANEOUS
IC 121 IC IC 123 IC IC 451 IC IC 551 IC IC 651 IC
IC...
Service Manual - Page 14
...in this chapter.
14 Amp Unit
Part No. Symbol and Description GM-X422/X1R/UC
GM-X422/X1R/ES
GM-X422/X1R/EW GM-X322/X1R/UC
S901 Switch.../4PU105J
Not used
C851, 852 C861, 862
CCSQCH101J50 CEAS100M50
CCSQCH101J50 CEAS100M50
CKSQYB471K50 Not used
CCSQCH101J50 CEAS100M50
6. GM-X422, GM-X322
=====Circuit Symbol and No.===Part Name
CAPACITORS
C 121 C 122 C 125 C 126 C 129
C 130 C 131 C 132 ...
Service Manual - Page 15
Remove six screws A, and then remove case. 2. therefore, to remove the Amp Unit from the Heat Sink. GENERAL INFORMATION
7.1 DISASSEMBLY
A
GM-X422, GM-X322
- Remove panel.
Remove four screws B and Three screws C. 2. Use 2 pcs. 7. Removing the Amp Unit Some silicone glue has been applied between the Heat sink and the Sub Heat Sink. Sub Heat Sink...
Service Manual - Page 16
...
Set the LPF/HPF select switch as follows according to a position other than HPF.
GM-X422, GM-X322
8. If the sound is set to the type of the power amplifier clockwise...GM-X422)
You can boost the level around the frequency selected by the bass boost frequency control to 0 to 120 Hz with your car stereo, change the BFC switch using a small screwdriver. OPERATIONS AND SPECIFICATIONS...
Service Manual - Page 17
... Output
GM-X422, GM-X322
17
RCA output jack
Fuse (20 A)
Speaker terminal See the "Connecting the Speaker wires" section for speaker connection instructions.
If...amplifier, connect the battery wire terminal of the amplifier to the power terminal through the ignition switch. RCA input
Amplifier with RCA input jacks
Connecting wires with RCA output jacks
(2) GM-X422/X1R/ES, GM-X422...
Service Manual - Page 18
...of the battery. UC and ES models:
Terminal screw
Speaker input terminal
RCA input jack
Blue Connect the male terminal of the amplifier to use the special red battery ... plugs (sold separately).
GM-X422, GM-X322
18
(3) GM-X322/X1R/UC
Grommet
Fuse (30 A)
Fuse (20 A)
Speaker terminal See the "Connecting the Speaker wires" section for speaker connection instructions.
Ground wire (black)...
Service Manual - Page 19
...
Speaker (Mono)
Fig. 19
Three-channel mode (stereo + mono)
The power amplifier is basically a twochannel/one-channel bridgeable amplifier, but three channels can be two-channel (stereo), one-channel (mono). pass ... ratings it may cause
damage to the amplifier.
• When the inductors and capacitors are
connected to prevent short circuits.
(2) GM-X422/X1R/ES
The speaker output mode can ...
Service Manual - Page 20
...
when an audio signal is nearly the maximum current drawn by multiple power amplifiers. GM-X422, GM-X322
- SPECIFICATIONS
Power source ...14.4 V DC (10.8 - 15.1 V allowable) ...Hz, 0.8% THD) 50 W × 2 (at 14.4V, 2 Ω, 20 - 20,000 Hz, 0.8% THD) Continuous power output (EW model 55 W × 2 / 125 W × 1 (DIN45324, +B=14.4 V) Load impedance ...4 Ω (2 - 8 Ω allowable)
...
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