Service manual

NO
YES
NO
YES
NO
YES
YES
NO
NO
YES
No display
(White)
Check the main
board 5V ?
+3.3V ?
H/V Input
Signal ?
Check the main
board
U3/Pin30 ?
Change
U3
Check
H/V Signal
Display ?
OK !
Change
Signal Cable
Check
U10
Check
U12
Check
3.3V Circuit