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1.
Mainparts
2.
Operation ofparts
layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CONTENTS
3
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4
2-l. Operation of spindle base with loading motor..
1)
Tray
open ................................................................................................................ 4
2) Tray IN
2-2.
Operation of optical pick-up block with sled motor
2-3.
Operation of slide base with
3.
Tray close (Disc IN)
3-l. With disc (1)
With disc (2)
3-2.
Without disc..
4.
PB . . . . . . . . . . . . . . .
.................................................................................................................... 7
skew
motor
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*
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*
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*
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10
13
17
17
21
29
5. PB-PAUSE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.
PB-STOP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.
Tray open (Disc OUT)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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33
34
36
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2. Operation of parts
2-l. Operation of spindle base with loading motor
1) Tray open
Press open/close button.
Loading motor rotates in the direction of arrow mark.
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Loading (midway) gear rotates in the direction of arrow mark
through belt and loading pulley.
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Tray driving gear rotates in the direction of arrow mark.
+
Tray driving gear meshed with tray rack unit, and loading
(midway) gear both move in the direction of arrow mark @.
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Drive gear rotates in the direction of arrow mark to rotate cam
gear in the direction of arrow mark.
1
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1
Spindle base moves down in the direction of arrow mark
centering around the fulcrum@, and the gap between press
pulley and spindle motor becomes large.
* Disc is released from chucking.
Tray driving gear further rotates and tray is pushed out in
the direction of arrow mark.
* Disc can be set.
Tray open sensor switch
motor stops.
(SOOl)
detects “tray open” when loading
I
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@
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r’l
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Loading pulley
‘p
Loading
(midway) gear,
Tray open
sensor switch ---
(SOOl)
Tray driving
L
gear
\
.,
-0’
, Spindle base
\,
a
Loabint
Drive’ gear
Fig.
2-1
Belt
, Motor pulley
motor
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Loading pulley
Loading (midway)
gear
This portion touches
the cam gear, allowing
the spindle base to
move down
by the cam
Spindle motor
Loading motor
Tray driving gear
Belt
Fig. 2-2
Tray open sensor switch
to ON by the projection under the tray.
(SOOl)
IS set
Loading (midway)
gear
.
-l-L
Cam ‘gear
\
Loading motor
Fig. 2-3
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2) Tray IN
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Press open/close button. Slightly push in the tray with hand.
* Tray open sensor
switch (SOOl) OFF
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Loading motor rotates in the direction of arrow mark.
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Loading (midway) gear rotates in the direction of arrow
mark through belt and loading pulley
*
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1
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Tray driving gear rotates in the direction of arrow mark.
r
~~~
~~
~~ ~ ~~
Tray meshed with tray dnving gear is pulled in the
direction of arrow mark.
When tray is pulled in and reaches the given position, both
the tray driving gear and loading (midway) gear move in
the direction of arrow mark @ .
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Drive gear rotates in the direction of arrow mark to rotate
cam gear in the direction of arrow mark.
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Spindle base moves up in the direction of arrow mark
centering around the fulcrum @ .
I I
Disc is set between press pulley and spindle motor.
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Tray close sensor (PHOOl) detects “tray close
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@
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The portion touches cam gear, allow\ng spindle
base to move up by the cam of cam gear.
base
Cam bear
This portion touches
cam gear.
Tray driving gear
\
I
Belt
Fig.
2-5
Press pulley
\
Tray
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Drive gear
Gam
gear
Fig. 2-6
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2-2. Operation of optical pick-up block with sled motor
Press PB button
Sled motor rotates in the direction of gray
arrow mark.
Limiter gear ass’y rotates in the direction
of gray arrow mark through gear (S-A) and
gear (S-B).
Limiter gear ass’y is meshed with the rack
gear of optical pick-up block and optical
pick-up block moves m the
1
gray arrow mark.
’
.
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(b).
drrectron
of
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When optical pick-up block is moved and
reaches given posmon, and sled motor
( stops. .
.
.
* Sled motor detects FG.
* The gray arrow mark indicates the movement of optical
pick-up block from inner to outer surface of disc (NEXT).
* The black arrow mark indicates reverse movement (PREV).
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