55
Is there RRF signal input?
(IC413 pin 3)
Spindle control is abnormal 2
(CD-ROM Disc)
Go to “RF output is abnormal”
Is there RFDC signal input?
(IC401 pin 85)
YES
YES
NO
Replace the IC413(EL2245).
NO
Does Tracking Servo
operate normally?
YES
Go to “Track Servo is unstable”
Go to “Disc recognition is abnormal”
NO
Is there WBLIN signal input?
(IC201 pin 132)
Spindle control is abnormal 3
Go to “RF output is abnormal”
Is there ATFM signal output?
(IC401 pin 25)
YES
YES
NO
Replace the IC401(CXA2551R).
NO
Is there DMO signal output?
(IC202 pin 2)
YES
Replace the IC201(OTI-9790).
Go to “Spindle operating is abnormal”
NO