Toshiba MW27H63 Service And Owner's Manual page 81

PLAYBACK PICTURE IS NOISY
(EVEN AFTER CLEANING HEADS)
Is FM signal at TP4501
more than 200mVp-p ?
Yes
Is FM signal at pins 72
and 73 of IC4501 ?
Yes
Is VIDEO waveform at
pin 26 of IC4501 and are
there any noises ?
Yes
Check IC601 and peripheral circuit.
TROUBLESHOOTING GUIDE
No
No
No
E-7
Check HEAD AMP and interchange
adjustments.
Check CP4501 and peripheral circuit.
Replace IC4501.