LG LRM-519, Service Manual

Page: 71 / 192

4-7
Focus Servo is unstable
Replace the LIC201.
•Check the R534.
•Replace the LIC201.
• Check the connection of LIC301 pin 124.
• Check the communication line between
LIC205 and LIC301.
• Replace the LIC205.
• Replace the IC301.
Is FE signal
output normal in Focusing
Up/Down?
(LIC201 pin 87)
Is FDRV signal
output normal in Focusing
Up/Down?
(LIC301 pin 124)
Go to “Focus Actuator
operating is abnormal”
Focus Actuator operating is abnormal.
Is there focus
search control signal input?
(LIC502 pin 5)
Is there focus
search drive voltage output?
(LIC502 pin 51,52)
Is DRV-CTRL1
signal “H”?
(LIC502 pin 35)
Replace the LIC502.
•Check the connection CN102 pin 40,41.
•Check the connector LCN201.
Replace the pick-up. After replacing Perform
5. Optical Power Setting from ‘How to use Test tool’.
YES
YES
YES
YES YES
NO
NO
NO
NO NO