5 Troubleshooting
5-12 SyncMaster 753DF/755DF
5-1-19 User Control Failure
Does the DC level change at
Pin 36 of IC201 when you push the
button S/W?
Yes
Check the button.
(SW201 ~ SW204)
No
Check IC201.
RL601 operation is right?
Q601 base input is right?
Check and replace Q601.
No
No
Yes
Check D-coil and TH601.
Yes
IC201 Pin 4 output is right?
Check and replace IC201.
Yes
No
Done
Check degaussing connector.
5-1-20 Degaussing Failure
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