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Focus section
Is +10V applied to the
colector of Q601,and - 10V
to the colectorof Q602 ?
Check the power
supply circuit.
Does the following
waveform appear at
pini2 of J601?
Does the pickup lens
move up and down
when the tray is
closed using the OPEN
/ CLOSE switch??
Does the following
waveform appear at
TPS immediately after
ba
a disc is loaded when
Check the pickup and
TP 6 is shorted?
Approx.
ov Ay,
| £20V
1~2ms
connections.
Check the pickup ,IC501
and associated
components.
Check IC601and
associated components.
Tracking section
Check the power
is + 10V
applied to the
NO
V
i e
P s
supply circuit.
colector of Q603,and - 10
to the colectorof Q604 ?
TOC read?
NO
YES
Can all tunes be
correctly searched?
NO
Can the waveform be
observed at TP7 when
TP2 is shorted?
Check the pickup and
associated components.
Check 1C401,1C201 and
associated components.
Check IC401,1C601 and
associated
components.
XL-V163TN/V164BK
XL-V263TN/V264BK
1-33 (No.20392)
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