Samsung CF21M Service Manual page 61

5 Troubleshooting
5-1-20 User Control Failure
Check connector Ass'y.
IC201 Pins 11 and 12 inputs are
right at each function?
Yes
Check and replace IC201.
Done.
5-1-21 Degaussing Failure
Check degaussing connector.
RL601 operation is right?
No
Q601 base input is right?
No
IC201 Pin 31 output is right?
Yes
Done.
5-12
No
Check and replace function key.
Yes
Check D-Coil, POS601.
Yes
Check and replace Q601.
No
Check and replace IC201.
Check user function key.
CF21M*