In case the main gear rotates once clockwise while the CD
mechanism is not chucking adisc and the tray is open, a series of
movements are performed as follows:
The open tray is closed. Complete closing is followed by UP
movement of the CD mechanism (disc chucking movement).
When the main gear continues rotation, a series of movementsto
open the tray is conducted again.
These movements are equivalent to the following actual use
condition; when the tray is open, a disc is loaded on the turntable.
Then the tray is closed to play CD. In this play mode the tray is
opened.
'The reverse movements are performed by rotating the main
gear
counterclockwise;
when
the main
gear
is rotated
once
counterclockwise while the CD mechanism is chucking a disc and
the tray is open, the tray is closed. The DOWN movement of the
CD mechanism and then the tray open movement follows. The
movement to open/close the tray, which does not simply corre-
spond to the rotating direction of the main gear, will change
according to the CD movement mode.
The Table 3 below shows the above-mentioned movement. The
CD stop condition is main in the actual use of the CD changer.
Figure 5-1 to 5-6 and 6-1 to 6-6 shows a series of process to close
the opening tray with the CD mechanism down, and Fig. 7, the
Timing Chart of Electric Signals.
The main gear to slide the tray is of rack' pinions.
Double pinion gearsof the main gear are set vertically. Their
diameters are slightly different. One gear with larger diameter
engages with the rack gear onthe left side ofthetray;theotherone
with smaller diameterengages with the rack gearon the right side
of the tray.
STATE
NU
I A I
INU
DIRECTION OF
GEAR
CD stop condition (CD Mechanism UP)
CLOCKWISE
COUNTERCLOCKWISE
Movement direction
The tray is opened with CD Mechanism UP.
To close the tray under the condition as
(In case the tray is opened in the CD mentioned left, the main gear is rotated
PLAY mode)
counterclockwise.
COUNTERCLOCKWISE
CLOCKWISE
The tray is closed with CD Mechanism Down.
To close the tray under the condition as
(In case the tray is opened by stopping CD.)
mentioned left, the main gear is rotated
clockwise.
-4-
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