Aiwa HV-FX5100 Service Manual page 38

PLAYBACK PICTURE IS NOISY
(EVEN AFTER CLEANING HEADS)
Is FM signal at pin 79
of IC4001 270mVp-p ?
Yes
Is FM signal at pin6 of
IC1002 more than 1V ?
Yes
Is VIDEO output at the
emitter of Q4802 2Vp-p,
and are there any noises ?
Yes
Replace J4501.
TROUBLESHOOTING GUIDE
No
No
No
E-15
Check CYLINDER UNIT.
Perform the interchangeable
adjustment of DECK.
Check IC4001 and Q4802.