JVC RC-XC3BK

RC — XC3BK B/E/EN/G/GI
@ Feed section
Is 4.2V or OV produced at
IC601 36 ?
IC601 is defective.
Check the circuitry in the
vicinity of R565, 566 and
1C502.
Do both ends of the feed
motor produce 2V?
Feed motor is defective.
OK IC502 is defective.
Fig. 7-3
W@ Focus section
Does a pulse waveform
appear at IC601 @ ?
TUL '
© LI ov
eS
2.4 sec.
N IC601 is defective.
Does a ramp waveform
appear at CN501 45 ?
Does a ramp waveform
appear at IC501 (9 ?
N N Check the circuitry in the vicinity
of IC 501 @- @.
IC501 is defective.
Y
Pickup is defective. Check the circuitry in the
vicinity of IC502 @ - @.
OK
IC502 is defective.
Fig. 7-4
(No. 1991) 51