E-16
TROUBLESHOOTING GUIDE
YES
YES
NO
YES
YES
NO
Recording mechanism works,
but no video recorded from
input jack or tuner
Whether there is a
video signal for IC4001
36, 38th pin or not?
Investigate video input jack and
IC4001, tuner and IC4001
circuit.
Whether there is a
video signal for IC4001
46th pin or not?
Exchange IC4001.
Investigate Q4012 peripheral
circuit.
Whether there is FM
signal for IC4001 82,
85th pin or not?
NO
NO
Exchange IC4001.
Investigate a cylinder unit.
Whether there is a video
signal for IC4001 41st
pin or not?