ONKYO ML15AS
Instrukcja Serwisowa

5 Troubleshooting

5-2 No Video (PC Signal)
Power indicator is green

Does the signal appear at Pin 7, 15, 22, of IC107?

No

Check R155 ~ R157, C151 ~ C153.

Yes

Does the clock pulse appear at Pin 115, 117 of IC107?

No

Check IC107 and related circuit of IC107.

Yes

Does the clock pulse appear at output of RA301 ~ RA304?

No

Check related circuit of IC301.

Yes

Does the clock pulse appear at Pin 37 ~ 48 of IC501?

No

Check IC501 and related circuit of IC501.

Yes

Does the clock pulse appear at output of FT501 ~ FT510?

No

Replace FT501 ~ FT510.

Yes

Replace LCD Panel.

5-2

SyncMaster 150MP