Focus Actuator operating is
abnormal
Is there Focus
Search control signal input?
(IC501 pin 3)
YES
Is there Focus
Search drive voltage output?
(IC501 pin 13,14)
YES
•
Check the connection of PN401 pin 1, 4.
•
Check the Pick-up Connector(PN401).
•
Replace the Pick-Up.
Spindle control is abnormal 1
(CD-ROM Disc)
Does FOCUS Servo
operate normally?
YES
Is there RFAC signal input?
(IC201 pin 163)
YES
Go to "Spindle operating is
abnormal"
54
•
Check the connection of IC201 pin 207.
NO
•
Check the communication line between
IC201 and IC301.
•
Replace the IC201 (OTI-9790)
NO
Is Act_Mute signal "L"?
(IC501 pin 9)
YES
•
Replace the IC501(BA5983).
NO
•
Go to "Focus Servo is unstable"
NO
Is there a output normally?
(IC401 pin 71, 72)
YES
•
Replace the IC413(EL2245).
NO
•
Check the connection of IC301 pin
26.
•
Replace the IC301(MICOM).
NO
•
Replace the IC401(CXA2551R).