Pioneer DVH-P500UB Service Manual page 38

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QQ
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Check 7: Is VD8, VCC5 power supply voltage OK?
A
VD8_1
F.E. driver system
DISC detection LED
IC1004
VD
REG IC
for VCC 5 V.
Fig 7.1: Power supply configuration
B
<Check> Check the voltage at the "VD8_1, VD and VCC5_1" test point while the power is on.
Use the "PGND3 and AGND1" test point at the reference.
NO. Check point
1 VD8_1 - PGND3
2 VD - PGND3
3 VCC5_1- AGND1
Side A
C
TE
L 13942296513
PGND3
D
Fig 7.2: VD8, VCC5 voltage check points
E
www
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http://www.xiaoyu163.com
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VCC5 (= 5.0 V )
Module No.
ALL
ALL
ALL
x ao
y
. i
DVH-P5000UB/XN/EW5
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http://www.xiaoyu163.com
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8
Power supply
for PU
Specification value Unit
8.0 ± 0.4 V
8.0 ± 0.4 V
5.0 ± 0.1 V
VD8_1
VD
AGND1
Q Q
3 6 7 1 3
VCC5_1
u163
.
3
4
2 9 9 4 2 8
1 5 0 5 8 2 9 9 4
m
co
4
9 9
2 8 9 9