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

CD CHANGER MECHANISM OPERATION DESCRIPTION
a.
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The unit is capable of loading up to six 12 cm CDs at once and playing them in sequence.
Immediately before power is turned on (off status), it is in the home position.
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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.
UP/DOWN OPERATION OF THE CD MECHANISM
AND DISC CASE
Normally, the UP/DOWN MOTOR (41 4) 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.
When the OPEN/CLOSE button is pressed, the cam gear (391) turns counterclockwise, putting the turntable into the
down position. (CD mechanism: down.)
(2) When the plunger (395) operates, it turns the worm gear (3661. using the gear (408) as a junction.
This causes the disc case to move up or down.
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(3) 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.
UPI
CD MECHANISM UP/ DOWN OPERATION
GEAR (408 )
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CD MECHANISfVl
UPI DOWN CAM GEAR ( 391 )
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GEAR (-408)
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BOSS
+
CONTROL LEVER (407)
:D MECHANISM
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WN M0T0R(414) PLuNGER (395)
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DISC CASE &
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(385)
ANISM
GEAR
(408)
DISC CASE UP/ DOWN OPERATION
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DISC CASE ELEVATOR
DISC CASE(363)
SENSOR P.C.B(315)
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SENSOR
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RESET SWITCH
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MOTOR GEAR
(0)
DISC CASE & CD MECHANISM
@J ) UP/ DOWN MOTOR(414)
UPI DOWN
SWITCH(393)
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