Pioneer VSX-LX53 Service Manual page 50

1
QQ
3 7 63 1515 0
OL (Over Load) Detection Circuit
A
H
POWER AMP ASSY
+VL
Q5001
OL DETECTOR
B
R5043
OUTPUT
L ch
GAMP
Q5002
R5044
SL ch
-VL
SBL ch
C
SR ch
SBR ch
TE
L 13942296513
D
E
www
F
50
1
http://www.xiaoyu163.com
2
V+5_UST
Normal: Low (0V)
OL det: 0.6V
Q5041 D5043
R5732
Q5731
GNDU
D5143
D5243
D5343
R ch
D5443
D5543
D5143
C ch
x ao
y
. i
2
http://www.xiaoyu163.com
3
8
DIGITAL MAIN
E
ASSY
CN5805 CN603 CN601
-10 -2 -9
Q Q
3 6 7 1 3
u163
.
VSX-LX53
3
4
2 9 9 4 2 8
J
DISPLAY ASSY
V+5_ST
UCOM
Normal: High (5V)
CN3001
OL det: Low (0V)
IC3001
-31
71
GNDU
1 5 0 5 8 2 9 9 4
m
co
4
9 9
2 8 9 9