LG LRM-519 Service Manual page 68

Tray operating is abnormal
Tray open doesn 't work.
Is the
Input voltage 0V at LIC301
pin 60 when push the
EJECT SW?
YES
Is there tray
control signal input?
(LIC502 pin46)
YES
Is there tray
drive voltage output?
(LIC502 pin 1, 2)
YES
•Check the connector (LCN504).
NO
•Check the connection of LIC301 pin 106.
•Replace the EJECT SW.
•Replace the LIC502.
NO
•Check the communication line between
LIC502 and LIC301.
When LCN504 is open,
NO
Is there tray drive signal
4-4
output?
YES