6
GM-X422, GM-X322
A
1
2
3
4
B
C
D
1
2
3
4
3. SCHEMATIC DIAGRAM
Note: When ordering service parts, be sure to refer to "EXPLODED VIEWS AND PARTS LIST" or "ELECTRICAL PARTS
LIST".
MOTHER PCB
A
ISOLATOR PCB
B
UC and ES models only
C851, 852
UC, ES : 100P
EW : 470P
R469
R470
22k
22k
R469, 470 : GM-X322 only
VR452 : GM-X422 only
10/50
10/50
4R7/50
4R7/50
SPEAKER INPUT LEVEL
LPF / HPF
BASS BOOST
+15
REGULATOR
-15
REGULATOR
SWITCHING REGULATOR
THERMO-DETECTION
MUTE
L
R
R
L
AMP UNIT
Consists of
MOTHER PCB
ISOLATOR PCB
: AUDIO SIGNAL
SIGNAL ROUTE
A B
Summary of Contents for GM-X322
Page 4: ...4 GM X422 GM X322 2 2 EXTERIOR Fig 2 ...
Page 9: ...9 GM X422 GM X322 5 6 7 8 A B C D 5 6 7 8 Fig 4 B A SIDE A OUT IN B ISOLATOR PCB ...
Page 10: ...10 GM X422 GM X322 A 1 2 3 4 B C D 1 2 3 4 A B B ISOLATOR PCB A MOTHER PCB ...
Page 11: ...11 GM X422 GM X322 5 6 7 8 A B C D 5 6 7 8 Fig 5 A SIDE B ...
