Pioneer CX-3311 Service Manual page 40

1
Check 7: Is VD8, VCC5 power supply voltage OK?
A
VD8_1
VD8_2
B
<Check> Check the voltage at the "VD8_P, VD8_A and VCC5_1" test point while the power is on.
Check the "PGND1 and AGND1" test point at the reference.
No. Check point
VD8_P - PGND1
1
VD8_A - AGND1
2
VCC5_1 - AGND1
3
Side A
C
D
E
VCC5_1
VD8_A
F
40
1
2
F.E. driver
system
VCC5 (= 5.0 V )
Regulator IC
for VCC 5 V
Fig 7.1: Power supply configuration
Module No.
ALL
ALL
ALL
VD8_P PGND1
Fig 7.2: VD8, VCC5 voltage check points
CX-3311
2
3
Power supply
for PU
Specification value Unit
8.0 ± 0.4 V
8.0 ± 0.4 V
5.0 ± 0.05 V
3
4
AGND1
4