
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)
Trouble shooting chart
Check whether
F1 is blown
Содержание DVP1120
Страница 29: ...Front Board Switch Board Print_Layout Bottom Side for DVP1120 55 93 98 6 8 6 8 ...
Страница 30: ...Infrared Board Print_Layout Bottom Side for DVP1120 55 93 98 6 9 6 9 ...
Страница 31: ...Power Board Print_Layout Bottom Side for DVP1120 55 93 98 6 10 6 10 ...
Страница 32: ...Main Board Print_Layout Top Side for DVP1120 55 93 98 6 11 6 11 ...
Страница 33: ...Main Board Print_Layout Bottom Side for DVP1120 55 93 98 6 12 6 12 ...
Страница 37: ...8 1 REVISION LIST Version 1 0 Initial release Version 1 1 Include 93 98 for DVP1120 models ...