5 Troubleshooting
5-1-11 Tilt Failure
Check tilt connector connection
IC201 Pin 5 output duty varies No
Check and replace IC201.
with different DAC values?
Yes
IC403 Pin 10, 11 output varies withNo
Check and replace IC403.
different DAC values?
Yes
Check and replace CRT.
5-1-12 V Deflection Failure
Is 14V at IC301 Pin 2?NoCheck and replace R312, R316.WAVEFORMS
Is -14V at IS301 Pin 5?Refer to 5-1-1 No Power supply.
10 IC250, #23
Yes
IC250 Pin 23 output exists?No
10Check and replace IC250.
The waveform is right?
Yes
IC301 Pin 6 output exists?NoCheck and replace some
11
The waveform is right?parts around IC301.11 IC301, #6
Yes
Check V DY connector connection.
5-6AQ17HS/AQ17IS/AQ17NS
AQ19MS/AQ19IS/AQ19NS/AQ19FS |
ACEC
