LG GCC-4241N Service Manual page 43

System Check
Load Tray without any discs.
Does Pick Up move to
inside?
OK
Does Pick Up lens move
up/down?
OK
Does LD turn on?
OK
After eject tray, Insert CD-ROM disc
and check rotation.
Does Disc rotate
continuously and the
drive recognize the
disc?
OK
After eject tray, Insert blank CD-R
and check rotation.
Does Disc rotate
continuously and the drive
recognize the disc?
OK
After eject tray, Insert DVD-ROM and
check rotation
Does Disc rotate
continuously and the drive
recognize the disc?
OK
OK
NG
Go to "Sled Motor Servo is abnormal".
NG
Go to "Focus Servo is unstable".
NG
Go to "LD Control is abnormal".
NG
Go to "Recognition Fail Case 1
NG
Go to "Recognition Fail Case 1
(Blank CD-R/RW Fail)".
NG
Go to "Recognition Fail Case 2
(DVD Disc Fail)".
(CD-ROM Fail)".
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