74
SDV-P7
Check 1: Are all power supply voltages normal?
Reproduce DVD-REF-A1(GGV1018) Title 1.
Verify the voltage of the sensing pin.
If results are not satisfactory, check to see if there are any problems with the resin flux cored solder,
parts and components, in the vicinity of IC1801 through 1804 (the section marked
1
in the circuit dia-
gram).
NO.
Verification location
Rated value
Unit
1
VD8-PGND
8
±
0.3
V
2
VD63-GND
5
±
0.25
V
3
VDD33-GND
3.3
±
0.3
V
4
SRVDD-GND
3.3
±
0.3
V
5
VCC5-GND
5
±
0.25
V
6
VCC33-GND
3.3
±
0.17
V
7
VCC27-GND
2.73
±
0.07
V
8
VCC18-GND
1.8
±
0.04
V
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