Haier LE22T1F Service Manual page 42

Check if the power cord
is correctly connected
Check if there is voltage
pressure in J3(12V)、
J5(5Vstb)
Replace
Remote
Control Board
Chang
U1
No sound No picture No light
No
Yes
No
Yes
Check if L101（1.32V）、
L102（1.8V）、L103（
3.3V）、D101（2.5V）is
working
Yes
- 41 -
Connect the
power cord to the
socket
Replace D806 or
U2
No
Chang U101 OR U102 OR U105
OR D101
Still having
problems
Change
Mainboard