LG LH-T6740, Service Manual

Page: 30 / 57

- 3-5 -
B
NO NO
NO
NO
NO NO
NO
YES YES
YES
YES
YES YES
YES
Does
the SLED move
to inner side when it is at
outter position?
Motor Driver STBY
Pin is High?
Check the connection line of
STBY signal.
Is FMSO DC Level higher
than 1.4V?
Check the related circuit of
FMSO.
SL+ and SL- output
properly?
Check the amp circuit on motor
driver.
Check the cable connection with
MECHA.
Do not put in disc and tray
close.
C
Optical Lens has
movements for searching
Focus?
Proper FOSO outputs
to motor driver?
Check FOSO connection on
MT1389 and motor dirver.
Proper F+ & F- outputs?
Check the amp circuit on motor
dirver.
Check cable connect on with
pick-up head.