Haier LE39B8550T Service Manual page 30

No sound No picture NO LED indicate
Check PD15(24V)
Yes
Check PD3(12V)
Yes
Check LD22(3.3V)
Yes
Check C138(1.2 V)
Check CD86(1.5V)
Check C113(3.3V)
Yes
Change mainchip
U202
No
Change Mainboard
No
Change Mainboard
No
Change UD8
Change U107
No
Change UD7
Change Q101
No
Change Mainboard
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Service Manual
Model No.:
Still having problems
Change
Mainboard