Haier LE40U5000TF Service Manual page 37

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Check if there is voltage in
J16(Pin12-13:12V Pin6 5V
Pin5; 2-5V Pin3-4: 5V)
Yes
Check if there FLASH(U18)
has the right software and
work well
Yes
Change
Mainboard
No
Change the
Power board
No
Update the
software
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