CH-X400/CH-X450
1-23
Turn the power on with
no magazine loaded.
Reset
Move the lifter until it
comes to the STOP
position
(shipping position).
Connect the receiver,
etc. and turn the power
on.
Set to the changer
mode.
CD changer indication
appears on the receiver,
etc.
Load the magazine.
Is the disc pulled out to
start play?
IC521 pin z 2.5 V while
Is the disc taken out?
Is the disc rotated?
correctly?
10. Is the playback
sound normal?
Normal
Proceed to the Signal
Processing section.
Proceed to the Tracking
The lifter moves up or
down and stops.
The position motor does
not function.
The tray motor goes
forward and back
several times.
Check the connections
to the receiver or the
circuits in the vicinity of
IC651.
Check the linear position
sensor (VR601).
Check the wiring of the
CD 9 V power supply
position motor.
Check the TRAY-IN and
TRAY-OUT switches.
Exchange discs, then
check whether or not the
feed motor moves.
Set from the STOP to
PLAY mode, then check
that the triangle wave
appears at IC581 pins H
and I .
Does the laser emit?
Check the MAG SW,
TRAY-IN, and TRAY-
OUT switches.
Proceed to the Focus
section.
Proceed to the Focus
section.
Proceed to
the Signal
Processing
section.
Check the RESET
switch and feed
section
Check the vicinity of
IC501 6and 7.
(Refer to the Feed section).
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
General section
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