Toshiba MW27H63 Service And Owner's Manual page 80

NO PLAYBACK PICTURE
Does E-E appear on
the Monitor TV ?
Yes
Is there Y/C signal at pin
26 of IC4501 ?
Yes
Check IC601 and peripheral circuit.
NO COLOR DURING PLAYBACK
Does FM ENVELOPE
appear at TP4501 ?
Yes
Does CHROMA signal
at pin 26 of IC4501 ?
Yes
Check TV Block.
TROUBLESHOOTING GUIDE
Is the voltage at pins
No
23, 45, 52, 68 and 77
of IC4501 5V ?
No
No
No
E-6
No
Yes
Check Power circuit.
Replace IC4501.
Check IC4501 and HEAD AMP
BLOCK.
Replace IC4501.