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YES
Check the power
supply circuit.
Is the pickup at the
innermost position?
Check the REST Switch, IC601,
1€201 and connections.
NO
Can each tune be
1C602?
of IC 601?
YES
Can the pulse
waveform be
when operating
the auto search?
Check IC 602 and associated
components.
Spindle section
associated components.
Check 1C201, IC601
and wiring.
Is the pin4 of 1C603 - 10V?
YES
NO
.
Is pin3 of IC401 +0V?
NO.
Check IC401 and associated
Is pind of 1C401 +0V?
Sor PONS.
Check the power
supply circuit.
Does the spindle
motor stop in the
STOP status?
YES
NES
Defective IC603 or C602
Does the disc pean
NO [isthere approximetely
| NO _ [Cana pulse waveform be | NO
rousing alter closing
"6V at pin 7 of IC602 Me
observed at pind of
Check 1C401 or 1C201
401?
YES
YES
YES
YES
alias bls spinels
Check 1C603, IC602 and
Pee
associated components.
YES
Check !C603 and
Check the spindle
associated components.
motor and wiring.
:
A
1-34 (No.20392)
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