Philips DVDR630VR Service Manual page 100

Focus Servo is unstable
Is FE signal
output normal in Focusing
Up/Down?
(IC106 pin 87)
YES
Is FDRV signal
output normal in Focusing
Up/Down?
(IC201 pin 131)
YES
Go to "Focus Actuator
operating is abnormal"
Focus Actuator operating is abnormal.
Is there focus
search control signal input?
(IC102 pin 5)
YES
Is there focus
search drive voltage output?
(IC102 pin 51,52)
YES
•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'.
NO
NO
• Check the connection of IC201 pin 131.
NO
• Check the communication line between
IC104 and IC201.
• Replace the IC104.
Is DRV-CTRL1
NO
(IC102 pin 35)
Replace the IC102.
• Check the connection of IC301.
• Replace the IC301.
3-119
Replace the IC106.
•Check the R177.
•Replace the IC106.
signal "H"?
YES
NO