Samsung SyncMaster 170MP PLUS Service Manual download pdf (Page 14)

CONFIDENTIAL

5 Troubleshooting

GD17N*/GD17A* 5-3

5-3 No Picture (TV, Video 1, Video 2)

Check Pin 8 (AGC)

of IC703 (CN402).

Check replace the tuner.

Yes

No

Check Pin 52, 53, 55, 56 of IC402.

Replace IC402.

Yes

No

Does the signal appear at D405.

Check related circuit of

D405 and replace D405.

Yes

No

Check Q401 and replace mainboard.

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