Pioneer VSX-1018AH-K Service Manual page 62

1
OL (Over Load) Detection Circuit
A
R
POWER AMP ASSY
+VL
Q5001
OL DETECTOR
B
R5043
OUTPUT
L ch
Q5002
R5044
-VL
C
D
E
F
62
1
2
Normal: Low (0V)
OL det: 0.6V
Q5041 D5043
R5732
GAMP
D5143
SL ch
D5243
SBL ch
D5343
R ch
D5443
SR ch
D5543
SBR ch
D5143
C ch
VSX-LX51
2
3
INTERFACE
E
ASSY
V+5UM
CN5803 CN4808 CN4803 CN108
-12
-12 -10
Q5731
GNDU
3
4
B
MAIN ASSY
V+5UM
UCOM
Normal: High (5V)
OL det: Low (0V)
IC101
-10
26
GNDU
4