LG DK589XB Service Manual page 16

B
Does the SLED move to
inner side when it is at outter
position?
YES
Do not put in disc and tray
close.
Optical Lens has movements
for searching Focus?
YES
C
NO
Motor Driver STBY Pin is
High?
Is FMSO DC Level higher
than 1.4V?
SL+ and SL- output
properly?
Check the cable connection
with MECHA.
NO
Proper FOSO outputs
to motor driver?
Proper F+ & F- outputs?
Check cable connect on with
pick-up head.
3-6
NO
YES
NO
YES
NO
YES
NO
YES
NO
YES
Check the connection line of
STBY signal.
Check the related circuit of
FMSO.
Check the amp circuit on
motor driver.
Check FOSO connection on
MT1389C and motor dirver.
Check the amp circuit on
motor dirver.