Manual - Maintenance Electronique / Monitors Service Center
Manual - Maintenance Electronique / Monitors Service Center
Manual - Maintenance Electronique / Monitors Service Center
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7 Troubleshooting<br />
7-1-14 ABL Failure<br />
46<br />
Input full white pattern to monitor.<br />
Does the IC104 Pin 15 input<br />
vary with different patterns?<br />
(Crosshatch)<br />
No<br />
Check CN101 Pin 23 and<br />
CN221 Pin 23.<br />
Is the T502 Pin 8 waveform<br />
correct?<br />
Yes<br />
Does the IC221 Pin 23 output<br />
level vary with different pattern?<br />
(Crosshatch)<br />
Yes<br />
Check and replace Q201,<br />
Q202 and +12 V line.<br />
Yes<br />
No<br />
No<br />
Check and replace IC104.<br />
Check and replace T502.<br />
Check and replace IC201.<br />
WAVEFORMS<br />
46<br />
3.62 V (T502, #8)<br />
CH1 P-P = 3.62 V CH1 RMS = 3.330 V<br />
7-8 SyncMaster 1000s (CGP1607L)