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 C1&C2 if D1, D2, D3, D4 are
normal.
Check/ replace U1.
Check whether U1 are eroded.
All output voltages on
the power board is 0V or
deviated
Check whether there is
300V on C1 and C2.
Check whether 100KHz
oscillating signal on
Pin6 of U1
Check if +5V, , +12V and -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
Remark: Trouble shooting chart for
DVP3140/XX
Содержание DVP3112
Страница 37: ...6 5 6 5 Power Board Print Layout Bottom Side for DVP3140 XX DVP3142 K KM XX DVP3144 XX ...
Страница 38: ...Power Board Print Layout Bottom Side for DVP3144 K 55 6 6 6 6 ...
Страница 43: ...6 11 6 11 Main Board Print Layout Top Side for DVP3140 XX ...
Страница 44: ...6 12 6 12 Main Board Print Layout Bottom Side for DVP3140 XX ...
Страница 49: ...Main Board Print Layout Top Side for DVP3142 K KM XX DVP3144 k XX 6 17 6 17 ...
Страница 50: ...6 18 6 18 Main Board Print Layout Bottom Side for DVP3142 K KM XX DVP3144 k XX ...