1-12
KD-SX883
Feed section
Focus section
Spindle section
Tracking section
Is the voltage output at
IC521 pin "53" 5V or 0V?
Is the wiring for IC521
(90)~(100) correct?
Is 5V present at IC581
pin "20"?
Check CD 9V
and 5V.
Check the vicinity of
IC521.
Check the feed motor
connection wiring.
Is 6V or 2V present at
IC581 " 6 " and " 7 "?
Check IC581.
Is 4V present at both
sides of the feed motor?
Check the feed motor.
YES
YES
NO
YES
NO
YES
NO
NO
NO
NO
NO
NO
NO
NO
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
When the lens is
moving:
4V
Does the S-search
waveform appear at
IC581 pins "8" and "9"?
Check the circuits in
the vicinity of IC501
pins "8","9"and"15".
Check the pickup and
its connections.
Is the disk rotated?
Does the RF signal
appear at TP1?
Is the RF waveform at TP1
distorted?
Proceed to the Tracking
section
Is 4V present at IC581
pins "4" and "5"?
Check the spindle motor
and its wiring
Check the circuits in the
vicinity of IC501 "19"~
"24" or the pickup
Is 4V present at
IC521
pins "55" ?
Check IC501 and
IC521.
Check the vicinity of
IC581.
When the disc is rotated
at first:
Approx. 1.2V
Is the tracking error signal
output at IC501 "12"?
Check IC521.
Check the circuit in the
vicinity of IC501 pins
"2"~"12".
Check the pickup and
its connections.
NO
Summary of Contents for KD-SX883
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