Haier LE55K5000TFNa Service Manual page 60

No sound No picture NO LED indicate
Check J20(5VSB)
Yes
Check J20 ON/OFF High?
Yes
Check J20(5V 12V)
Yes
U104(3.3Vsb)
Check
Yes
Check C512 (1.18V) CE38(1.5V)
Yes
Check U110 (3.3V)
Yes
Check Y201(24MHz)
Yes
Change mainchip
U201
No
Change Power Board
No
Remote ON
No
Change Power Board
No
Change U104 U201
No
No
Change U110
No
Change Y201
No
Change Mainboard
Change U109 U501 U201