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Q501 Emitter output varies
with different DAC values?
IC401 Pin 33, 34
output varies with different
DAC values?
IC401 Pin 26
output duty varies with
different DAC values?
13. Tilt Failure
Check tilt connector
connection
Check and replace CRT.
NO
NO
Check and replace IC401.
Check Q503,Q501,Q502.
YES
YES
14. V Size or Pos. Variation Failure
Check and replace IC401
and IC601.
NO
Check some parts around IC401.
YES
- 28 -
IC401, #33 IC401, #34
Waveforms