80
Focus Servo is unstable
Is FE signal
output normal in Focusing
Up/Down?
(IC121 pin25*)
Check Pickup Read Power
is 1.3~1.7mW?
YES
Replace the IC121.
Replace the Pick up.
Go to “Focus Actuator
operating is abnormal”
NO
NO
Is FDRV signal
output normal in Focusing
Up/Down?
(IC201 pin 62)
•
Replace the IC201.
NO
YES
Focus Actuator operating is
abnormal
Is there Focus
Search control signal input?
(IC301 pin5)
Is DRVMUTE2 signal “H”?
(IC301 pin 35)
•
Replace the IC301.
•
Check the connection CN101 pin40,41.
•
Check the connection of IC121 pin 32.
•
Replace the IC121.
NO
YES
Replace the Pick-Up.
Is there Focus
Search drive voltage output?
(IC301 pin 51,52)
NO
•
Check the connection of IC201 pin 62.
•
Check the communication line between
IC121 and IC201.
•
Replace the IC201.
YES
NO
YES
* IC121 pin25 is MOUT2(FEP Monitor2).
After disc recognition action, Monitor port
is off. So, please check FE signal during
disc recognition.
Содержание GSA-4166B
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