SAMSUNG Proprietary-Contents may change without notice
Level 3 Repair
8-6
This Document can not be used without Samsung's authorization
8-3-1-2 LCD WORKING
Power Switch On
LCD FPCB
connector is
correctly conn
ecting?
Yes
Check UCP300
(open, short, etc)
Yes
Replace UCP300
Check U401
Replace LCD
C618
LED+_23V=
23V?
U601
6pin >
"1.8V"?
Yes
C616(VLCD_3.
0V) = 3.0V?
C615(VLCD_1.
8V) = 1.8V?
Replace
F600, F601, F602,
F603, F604, F605
NO
F600, F601, F
602, F603, F6
04, F605 Corr
ectly mounted?
NO
correctly connect
Yes
NO
LCD Backlight
On?
Yes
Yes
NO
Replace U601
NO
NO