Samsung BD-UP5000 Service Manual page 36

Trouble Shooting
Check the Power of FMIC(Pin)
4-
Remote control does not work
Remocon battery
OK?
Yes
Is the
FFC cable (between
Front panel&Main)
OK?
Yes
FU PIN
SIGNAL OK?
Yes
or change the Main PCB
No
Change the battery
No
Re-insert FFC cable correctly
No
Check FU or change
the Front panel PCB
Refer to a pattern
image of Table 4-6
Samsung Electronics