Samsung CF21M Service Manual page 55

5 Troubleshooting
5-1-11 Tilt Failure
Check tilt connector connection
IC201 Pin 5 output duty varies
with different DAC values?
Yes
IC403 Pin 10, 11 output varies with
different DAC values?
Yes
Check and replace CRT.
5-1-12 V Deflection Failure
Is 14V at IC301 Pin 2?
Is -14V at IS301 Pin 5?
Yes
IC250 Pin 23 output exists?
10
The waveform is right?
Yes
IC301 Pin 6 output exists?
11
The waveform is right?
Yes
Check V DY connector connection.
5-6
No
Check and replace IC201.
No
Check and replace IC403.
No
Check and replace R312, R316.
Refer to 5-1-1 No Power supply.
No
Check and replace IC250.
No
Check and replace some
parts around IC301.
WAVEFORMS
IC250, #23
10
IC301, #6
11
CF21M*