No E-E(No Video From Tuner) - JVC HR-J3009UM Service Manual

NO E-E
(NO VIDEO FROM TUNER)
Are the plugs
connected to the
VIDEO input jacks?
Yes
Do the voltages appear at
each terminal +B(5V), PB(5V)
and TU(32V) of TU6001?
Yes
Check VIDEO
Does VIDEO signal
appear at pin 24 of
TU6001?
Yes
Is there VIDEO
waveform at pin
32 of IC4001?
Yes
Replace IC4001.
TROUBLESHOOTING GUIDE
No
No
No
No
Disconnect the plugs from the
VIDEO input Jacks.
Check peripheral circuit.
Replace TU6001.
Check J4201.
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