TROUBLESHOOTING GUIDE
E-9
NO COLOR DURING PLAYBACK
No
Yes
No
Yes
No
Yes
No
Is there voltage at
pin 61 of IC4001?
Yes
Check TV Block.
Check IC4001.
Check C4075, R4050 and the
peripheral circuit.
Check L4013 or Replace IC4001.
Does FM ENVELOPE
appear at TP4002?
Check R4040, Q4006 and
peripheral circuit.
Does CHROMA signal
appear at pin 52 of IC4001?
Does CHROMA
signal appear at pins
55 or 54 of IC4001?