Pioneer VSX-49TX Service Manual page 74

1
VSX-49TX, VSX-47TX
3.29 POWER AMP (R), POWER AMP (BR) and POWER AMP (G) ASSYS
POWER AMP (R) ASSY
X
(AWX7883)
A
AMUTE1
ON : +4.2V
OFF : -20V
B
C
D
X Y Z
74
1
2
Q 1/3
CN5005
POWER AMP (BR) ASSY
Y
(AWX7885)
Z
2
3
Voltage Amp.
Voltage Amp.
Voltage Amp.
POWER AMP (G) ASSY
(AWX7886)
3
4
4