Zenith XBR413 - Page 78

3-103
Focus Servo is unstable
Replace the IC107.
•Check the R158.
•Replace the IC107.
•Check the connection of IC202 pin 146.
•Check the communication line between
IC106 and IC202.
•Replace the IC106.
•Check the connection of IC302.
•Replace the IC302.
Is FE signal
output normal in Focusing
Up/Down?
(IC107 pin 86)
Is FDRV signal
output normal in Focusing
Up/Down?
(IC202 pin 146)
Go to “Focus Actuator
operating is abnormal”
Focus Actuator operating is abnormal.
Is there focus
search control signal input?
(IC105 pin 53)
Is there focus
search drive voltage output?
(IC105 pin 45,46)
Is DRV-CTRL1
signal “H ”?
(IC105 pin 23)
Replace the IC105.
•Check the connection CN101 pin 35,36.
•Check the connector CN101.
Replace the pick-up.
YES
YES
YES
YES YES
NO
NO
NO
NO NO