JVC TV-13142 Service Manual page 45

RECORDING MECHANISM
WORKS, BUT NO VIDEO
RECORDED FROM INPUT
JACK OR TUNER
Does VIDEO signal
appear at pin 28 or
32 of IC4001 ?
Yes
Is there VIDEO signal
at pin 28 of IC4001 ?
Yes
Does VIDEO signal appear
at pin 26 of IC4001 ?
Yes
Does FM signal appear at
pin 14.
Yes
Check IC1004, CYLINDER UNIT and
IC4001.
TROUBLESHOOTING GUIDE
No
No
Is the voltage at pin 23 of
IC4001 about 5V ?
Yes
Replace IC4001.
No
No
Check the circuit from VIDEO input
jack to IC4001 and from Tuner Pack
to IC4001.
No
Check P.CON +5V Line.
Check the peripheral circuit of Q4009.
Replace IC4001.
TV-13142
TV-13142W
45