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TROUBLESHOOTING FLOW CHART
2. SERVO-SYSCON CIRCUIT
A.
Playback picture
is not good
Noise appears
although
adjusting tracking.
Check and re-adjust
the path of Deck.
YES
NO
NO NO
YES
YES
Adjust tracking.
Noise appears
although change
cassette tape.
YES
Is CTL pulse output
at pin 25 of IC501?
Playback picture
is not good
YES
NO
Check IC501
The voltage of pin 89
of IC501 not changing?
Check R527, C514.
CTL HEAD height
is normal and
there is not dust?
Adjust the HEAD
height and
remove dust.
Check circuit
adjacent to Ic501 & IC502.