Philips DVP 1013, Service Manual

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4-3
All output voltages on the power board is 0V or deviated.
No
No
No
Yes
No
U1(PIN 8 - Drain waveform)
Replace F1
Replace C4 if D1, D2, D3, D4
are normal.
Check/ replace U1.
Check whether U2 are eroded.
All output voltages on the
power board is 0V or deviated
Check whether
there is 300V on C4.
Check whether 100KHz
oscillating signal on Pin6 of U1
Check if +5V, +12V, -12V
are short.
Check whether the components in the
short-circuit voltage are defected or eroded.
Yes
Yes
Yes
Yes
U1(PIN 3 - RC waveform)
Check whether
F1 is blown
Trouble shooting chart