Zenith XBR411 Manual page 77

Tray operating is abnormal
Tray open doesn 't work.
Is the
Input voltage 0V at IC301
pin 60 when push the
EJECT SW?
YES
Is there tray
control signal input?
(IC102 pin46)
YES
Is there tray
drive voltage output?
(IC102 pin 1, 2)
YES
•Check the connector (CN303).
NO
•Check the connection of IC301 pin 60.
•Replace the EJECT SW.
•Check the connection of IC107 pin 19.
NO •Replace the IC103.
•Check the communication line between
IC107 and IC301.
When CN303 is open,
NO
Is there tray drive signal
YES
•Replace the IC105.
3-100
NO
output?