Schematic Diagram - Pioneer GM-X422 Service Manual

1
GM-X422, GM-X322

3. SCHEMATIC DIAGRAM

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