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Noise (it is really back to have
cleaned a head) for a picture
when playback
Whether does
TP4001 FM signal
appear or not?
YES
There is FM signal for
IC4001 41st pin, and
doesn't a noise
appear again?
YES
Video waveform of IC4001
29th pin is 2V, and doesn't
a noise appear again?
YES
Exchange IC701.
TROUBLESHOOTING GUIDE
NO
NO
NO
E-10
Exchange cylinder unit and
CP4001.
Investigate a peripheral
circuit of IC4001 46th pin.
Exchange IC4001.
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