Focus Servo is unstable
Replace the IC106.
•Check the R177.
•Replace the IC106.
• Check the connection of IC201 pin 131.
• Check the communication line between
IC104 and IC201.
• Replace the IC104.
• Check the connection of IC301.
• Replace the IC301.
Is FE signal
output normal in Focusing
Up/Down?
(IC106 pin 87)
Is FDRV signal
output normal in Focusing
Up/Down?
(IC201 pin 131)
Go to “Focus Actuator
operating is abnormal”
Focus Actuator operating is abnormal.
Is there focus
search control signal input?
(IC102 pin 5)
Is there focus
search drive voltage output?
(IC102 pin 51,52)
Is DRV-CTRL1
signal “H”?
(IC102 pin 35)
Replace the IC102.
•Check the connection CN102 pin 40,41.
•Check the connector CN102.
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
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