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AV-20F703
NO VERTICAL
Is the waveform at pin
6 of CP401 normal ?
Is the waveform at pin
1 of IC401 normal ?
Is the waveform at pin
36 of IC601 normal ?
No
Check the associated circuit of IC601.
MC-Service
18
TROUBLESHOOTING GUIDE
Yes
No
Yes
No
Yes
Yes
Is the voltage at pin 2
of IC401 25V?
No
Check the 25V line.
No. 52001
Check DY.
Check IC401 and check the
peripheral circuit.
Check the circuit from pin 36 of
IC601 to pin 1 of IC401.
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