Explanation Of Mechanism - Sharp DV-600S Service Manual

7. EXPLANATION OF MECHANISM

(1) Tray loading mechanism
When the tray loading motor rotates counterclockwise, motion is transmitted to the slide rack D through the intermediate
gear 1 A , intermediate gear 2 B and tray pinion C , resulting in insignificant motion in the arrow direction.
The slide rack is linked with the operating chassis. It lowers the pickup mechanism.
The protrusion of slide rack E is linked with the tray through the groove at the rear side of tray, so that the tray is
pushed ahead a little. When the tray is pushed out, the slide rack is disconnected from the tray pinion, and at the same
time the gear at the rear side of tray is connected with the tray pinion, and the tray is pushed ahead.
When the tray is pushed out fully, the slide rack moves further in the arrow direction through the groove at the rear side
of tray. The tray position detection switch F is turned on, and the tray loading motor stops.
When the tray closes the operation is as follows. If the tray OPEN/CLOSE button or tray is pressed and the detection
switch is turned off, the tray loading motor rotates clockwise, so that the tray is retracted. When the detection switch
is turned on again, the tray loading motor stops.
Tray position detection switch
Slide rack
(2) Pickup feed mechanism
When the sled motor A rotates, the rack C moves through the sled pinion B so that the pickup D is moved to the
internal or external periphery.
When it is moved to the innermost periphery, the position detection switch E is pushed by the rack, so that the position
of pickup is initialized.
(3) Disc rotation mechanism
The spindle motor is used to rotate.
IC701 is used to control.
When the spindle motor is replaced, replace the
spindle unit.
F
D
Pawl linked with the groove at the
rear side of tray
This groove is linked with the pawl of
pickup mechanism.
E
Pickup
Position detection
switch
E
Rack
C
Sled pinion B
7-1
DV-600S
DV-600H
Intermediate gear 2 B
Tray pinion C
Intermediate gear 1 A
Spindle motor
Pickup
D
Sled motor A