LG RHT497H Service Manual page 89

Track servo is unstable
Is TE signal
output normal in focusing
ON and tracking OFF?
(LIC101 pin20*)
YES
Is there
TDRV signal output
in tracking ON?
(LIC201 pin73)
YES
Check the Drive IC
(LIC301) and P/U
referring to "Focus actuator
operating is abnormal".
Is PICK UP
NO
(E, F, G, H) output normal?
(LPM101 pin35, 38,
39, 42)
YES
Replace the LIC101.
NO
Replace the LIC201.
4-8
NO
Check the PICK UP FFC.
Replace the PICK UP.
* LIC101 pin20 is MOUT1(FEP Monitor1).
After disc recognition action, Monitor port is
off. So, please check TE signal during disc
recognition.