
TROUBLESHOOTING GUIDE
PLAYBACK PICTURE IS NOISY
(EVEN AFTER CLEANING HEADS)
Is FM signal at pin 79
of IC4001 250mVp-p ?
No
Yes
No
Yes
Check CYLINDER UNIT.
Replace J4501.
No
Yes
Is VIDEO output at the
emitter of Q4802 2Vp-p,
and are there any noises ?
Is FM signal at pin 6 of
IC1002 more than 1V ?
Check IC4001 and Q4802.
E-15
Perform the interchangeable
adjustment of DECK.
www.freeservicemanuals.info
18/1/2015
Digitized in Heiloo, Holland