3-2
DVD-P-ON+12V is not outputted.
FLOW CHART NO.11
Is 12V voltage supplied to the emitter of Q1006?
Replace Q1006.
No
No
Yes
Yes
Is the "L" pulse (approximately 0V) outputted to
the collector of Q1005?
Check D015, D031, C018 and their periphery,
and service it if defective.
Check Q1005 and PWRCON line, and service it if
defective.
FLOW CHART NO.7
P-ON+5V is not outputted. (P-ON+9V is outputted normally.)
Is 5V voltage supplied to the collector of Q056?
Replace Q056.
No
No
Yes
Yes
Is the "H" pulse inputted into the base of Q056?
Check D016, L009, C020, C021, and their
periphery, and service it if defective.
Check Q056, R057 and their periphery, and
service it if defective.
FLOW CHART NO.6
P-ON+9V is not outputted. (AL+5V is outputted normally.)
Is 12V voltage supplied to the collector of Q055?
Check Q052, D052 and their periphery, and
service it if defective.
No
No
Yes
Yes
Is the "L" pulse inputted to the base of Q052?
Check D015, D031, C018, and their periphery,
and service it if defective.
Replace IC501.
FLOW CHART NO.8
TIMER+5V is not outputted. (AL+5V is outputted normally.)
Is the "H" pulse inputted to the base of Q063?
No
Yes
Replace Q063.
Check Q064, D062 and their periphery,
and service it if defective.
FLOW CHART NO.9
AL+33V is not outputted.
Is the supply voltage 44V fed the cathode of D013?
No
Yes
Check D701, R702, and service it if defective.
Check D013, C013 and their periphery, and
service it if defective.
FLOW CHART NO.10
AL+18V is not outputted.
Is the supply voltage 44V fed the cathode of D013?
No
Yes
Check D504, R092, R095, and service it if defective.
Check D013, C013 and their periphery, and
service it if defective.
Summary of Contents for DV-PF35U
Page 79: ...S 5 S 4 Main 1 8 Schematic Diagram ...
Page 81: ...S 7 S 6 Main 3 8 Schematic Diagram ...
Page 82: ...S 8 S 7 Main 4 8 Schematic Diagram ...
Page 83: ...S 9 S 8 Main 5 8 Schematic Diagram ...
Page 84: ...S 10 S 9 Main 6 8 DVD Open Close Schematic Diagram ...
Page 86: ...S 12 S 11 Main 8 8 Schematic Diagram ...
Page 88: ...S 14 S 13 DVD Main 2 3 Schematic Diagram ...
Page 90: ...S 16 S 15 DVD Main 3 3 Schematic Diagram ...
Page 102: ...DV PF35U No 0508E TK Digital Media Division Yokohama ...