Pioneer AVH-P5050DVD Service Manual page 45

5
Check 7: Is VD8, VCC5 power supply voltage OK?
VD8_1
F.E. driver system
DISC detection LED
IC1004
VD
REG IC
for VCC 5V.
Fig 7.1: Power supply configuration
<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
PGND3
Fig 7.2: VD8, VCC5 voltage check points
5
6
VCC5 (= 5.0V )
Module No. Specification value
ALL 8.0 ± 0.4
ALL 8.0 ± 0.4
ALL 5.0 ± 0.1
AVH-P5050DVD/XN/RC
6
7
Power supply
for PU
Unit
V
V
V
VD8_1
VD
AGND1
VCC5_1
7
8
A
B
C
D
E
F
45
8