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CA-MXS3BK
Focus section
Are
+12V and
-—12V
applied to the
collectors of Q701
and Q702?
Check the power
supply circuit.
Does the
pickup lens
go up and
down
Does the following
OpenCloseSW?
fe
ee ribs
Check Q701, 702,
1C703 and associated
components.
Does the following
waveform appear at
TP5(FE) immediately
after
the CD tray is close
when TP 6 (FEIN) is
connected to GND?
Approx.
fs
Check IC703 and
associated components.
Check the connection
to the pickup.
Check the pickup,
1C702 and associated
components.
Tracking section
Are
12V and
-12V
applied to the
collectors of Q703
and Q704?
Check the power
supply circuit.
Can all tunes be
correctly searched?
TOC can be read?
NO
connected to GND?
Check the pickup,
IC702 and associated
components.
Check IC701, 801 and
associated
com ponents.
1-58
(No. 20373)
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