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1B) evita |
18) Cea leh|
Press the play key or DISC KEY
Power switch ON
Traverse servo circuit
IC-102
IC-103
Traverse coil
Speed position sensor
Does PU move
toward the inner
circumference?
Piay operation key
System CPU
1C-401
Does indicator
illuminate?
Power circult
D451, D452
Stop position, and
"STANDBY?" is illuminate
TOC READ OPERATION - PLAY OPERATION
INDIVIDUAL CONDITIONS
CONTROL BLOCK/MAJOR PART
OBSERVATION
POINTS
Ly
Does laser diode
Optical Pick-up
illuminate?
Laser diode
Control circuit
Yes
IC-101, Q101
System CPU
tC-401
Is focus lens moved
System CPU circuit
vertically for search
{C-401
operation?
Servo control circuit
(visual check)
IC-101, 1C-102
Optical pickup
Focus coil
(none repairable)
System CPU circuit
1C-401
Spindle drive circuit
IC-351, IC2
Q351, Q352, Q353
DC spindle motor
Does spindle motor start
to rotate?
Yes
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