Power Configuration; Spots To Check In Vdd5, Vcc33, Vcc12 Voltages - Pioneer AVH-P5200BT Service Manual

1
Check 2: VDD5 (VCC33, VCC12) Power supply voltage OK?
VDD8
A
VDD5
<Check>
B
Check the voltage of the sending pin when the power is ON.
Checking should be based on DGND.
NO. Spot to check
1 VDD5_2 - DGND1
2 VCC33_1 - DGND1
3 VCC12-1 - DGND1
PCB side A
C
D
Fig. 2.2: Spots to check in VDD5, VCC33, VCC12 voltages
E
F
46
1
2
F.E. driver control system
IC1004 and IC1005
DC/DC converter
VCC 3.3V/1.2V output
Fig. 2.1: Power configuration
Module NO.
ALL
ALL
ALL
AVH-P5200BT/XNUC
2
3
IC1401 FLASH power(Data)
IC1402 FLASH power(Program)
IC1480 SDRAM power
VCC33 (= 3.3V) IC1501 DVD-LSI power
VCC12 (= 1.2V) IC1501 DVD-LSI power
Rated value Unit
5.0 ± 0.4 V
3.3 ± 0.15 V
1.2 ± 0.12 V
3
4
VCC12-1
VDD5_2
VCC33_1
DGND1
4