LG CED-8081B Service Manual page 10

Tray operating is abnormal.
(Tray open/close doesn't work)
Is the input voltage
0V at IC301 pin 10 when push the
SW802?
YES
Is there Tray control signal input?
(IC501 pin 26)
YES
Is there Tray
drive voltage output?
(IC501 pin 15, 16)
YES
•
Check the Tray Connector(PN301).
•
Check the Motor Line and Motor.
NO
•
Check the connection of IC301 pin 10.
•
Replace the SW802(Eject s/w)
•
Check the connection of IC409 pin 12.
NO
•
Replace the IC409(BU2500FU).
•
Check the communication line between
IC409 and IC301(MICOM).
NO
Is TRAY_MUTE signal "L"?
(IC501 pin 20)
YES
When PN301
is open, Is there Tray drive
signal output?
YES
NO
•
Check the connection of IC301 pin 18.
•
Replace the IC301.
NO
•
Replace the IC501(BA5983FM).
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