Technics SL-PG200A

(Operation Sequence Just After Power On)
Power On Open/Close switch
(no disc loaded) pressed.
@ Power supply failure:
¢ Voltage regulator (1C11,
Q11~16)
© IC protector (ICP1,2,11,12)
2 Microprocessor failure:
© 10401
Has the tray opened
FL display came on? and stopped?
Yes
Load a disc and press
the Open/Close switch.
Has the tray closed
and stopped?
Yes
@ Microprocessor failure:
10401
(2) Loading motor driver failure:
* |C402,motor
@ Tray switch failure
Tray closed?
Laser diode came on?
Yes
@ Radial control system
failure:
e1C6504, Radial motor
¢ 1C401
Does optical
pickup move toward
inner track?
Does focus lens
make vertical
movements?
Yes
Stops after making focus pull-
in operation for approx. 5 sec.
Spindle motor
started rotation?
Yes (A)
SL-PG200A
(TOC Read Operation-PLAY Operation)
@ Microprocessor failure
e 1C401
@ Operation key switch failure
@ Tray switch failure
@ Microprocessor failure
¢ 10401
@ Operation key switch failure
@) Tray switch failure
@® Pickup failure:
e Laser diode
@ Control system failure:
e 1C6501, Q6502
@ Microprocessor failure:
¢1C401
— Laser diode turn-on check method —
Remove the disc then close the tray,
and the laser diode wiil come on for
approx. 5 sec.
@ Microprocessor failure:
©1C401
2 Control system failure:
¢1C6501
@ FO error amp. failure:
¢ 1C6501, 1C6504
@) Pickup failure:
¢ Focus coil
(D> Microprocessor failure:
¢ 1C401
@ T.T. drive system failure:
© 1C301, 402, Q351,
Turntable motor