LG RCT689H Service Manual page 131

Writing Part Check
Load tray with DVD R/RW disc.
Press the "REC" key.
Does writing finish
without any error?
YES
Is the written file
read normally?
YES
OK
NO
NO
Go to "LD CHECK".
Is the re-written file
read normally?
YES
Check and replace LIC201, LIC101.
5-12
Eject tray.
YES