LG GCC-4242N Service Manual page 46

Focus Drive Check.
Is Focus Drvie normal?
TL343.
NG
Is Focus Drive normal?
(IC201 side of R250)
NG
Replace IC201.
48
1) Check Soldering of PG301.
OK
2) Check voltage of TL338(5V).
3) Check voltage of TL347(1.65V).
4) Check insertion or damage of
Main FPC.
Repair/Charge NG parts.
OK
Check LPF (R250, C250).
OK
NG
Replace Unit Mecha and
Execute LD Calibration.