Cd Changer Mechanism; Operation Description - Sanyo MCH-900F Service Manual

iii
CD CHANGER MECHANISM OPERATION DESCRIPTION
The
unit is capable of toading LIP [o six 12
cm CDs al once and playing
[hem in sequence.
d
Immediately before power is Iurned
on (off status),
it is in the home position.
Disc case
:
Disc 1 (top level)
Turntable : Chucking
Loading plate: Holding
disc
. When
the unit is powered on with the CD function
selected, chucking takes place on the CD that was programmed
when
the
unit was last operated and the unit enters the standby mode.
a.
UP/DOWN OPERATION OF THE CD MECHANISM AND DISC CASE
Normally, the UP/DOWN MOTOR (414) of the disc
case and CD mechanism turns the up/down cam gear (391) of the
CD mechanism in a clockwise direction, causing
the
up/down switch (393) to move to the "up on" position.
This puts the turntable into chucking status.
(1)
(2)
(3)
UPI
When the OPEfWCLOSE button is pressed, the cam gear (391) turns counterclockwise, putting the turntable into the
down position.
(CD mechanism: down.)
When the plunger (395) operates, it turns
the worm gear (366), using the gear (408)
as a junction.
This causes the disc case to move up or
down.
The rear of the disc case is equipped with slits (the protrusions to the right of 363) and switches, which cause a disc
case
stop signal to be generated.
CD MECHANISM
UP/
DOWN OPERATION
DISC
CASE UP/
DOWN OPERATION
GEAR ( 408)
CD MECHANISM
UP/ DOW,N CAM GEAF?(391 )
G&&
GEAR ( 408)
BOSS
I
t-
CC) N TROL LEVER (407)
DISC CASE &
CD MECHANISM
I
DO~oT~~T~~~;l & )
p~"NGER(395)
.
"'OFF"
—
WO~~6~AR
DISC ~SE ELEVATOR
DISC CASE(363)
~1————
SENSOR P.CB (315)
.
%~~
IJN-I
OADING
;H
Y
SENSOR'
uJ\
-----
SWITC
/— —
DISC CASE
/(1 \
DISC CASE( 363)
.!T
GEAR
(408)
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