LG BD370 - Tray Operating Is Abnormal

4-4
Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
ELECTRICAL TROUBLESHOOTING GUIDE
3. TRAY OPERATING IS ABNORMAL
Tray operating is abnormal
Tray open doesn’t work.
Check the loading motor
and front loading mechanism.
Is there tray
control signal input?
(LIC201 Pin41)
Is there Tray
control signal output?
(LIC501 Pin55)
YES
YES
Is there tray
drive voltage output?
(LIC201 Pin27,28)
NO
NO NO
• Check the serial flash operation.
• Check the SATA communication between
B/end MPEG Chip.
• Go to reset or power check.
Check the connection from
LIC501 Pin55. to LIC201 Pin4.
Check the LIC201
YES
Is there tray
drive voltage output?
(Loading Motor)
NO
Check the connector LPF301
and FFC cable connection.
YES
YES