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6 Troubleshooting
6-2 SyncMaster 33*TFT/53*TFT
6-2 No Video
Replace IC101.
Power indicator is green
Replace IC305 or check its
related circuit.
Replace IC310 and IC311 or
check its related circuits.
Replace IC106.
Replace IC105 (seperate sync)
or IC104 (SOG).
Check IC401 and IC101.
No
Does the clock pulse
appear at output of
FT110, FT111, FT112?
Does the H-sync pulse appear
at Pin 94 of IC101?
Does the pulse appear at Pin 10
of IC105 or Pin 1 of IC104?
7 8 9
No
Does the sync pulses appear at
Pins 13 and 14 of IC110?
Does the sync pulses appear at
Pins 2 and 3 of IC110?
Replace IC110 or check its
related circuit.
18 19 20 1
Replace IC301 or check its
related circuit.
Replace LCD Panel
No
Do the sync pulses appear at
Pins 22, 23, 25 and 26 of IC310?
Do the sync pulses appear at Pins
2, 3, 54, 55 and 56 of IC301?
2 3 4 5 10 11 12 13 14
No
Do the waveforms appear at
Pins 5 and 20 of CN301?
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
No
6