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Check if the po
w
er cord
connect
w
ell?
Po
w
er on and check if
5V standby on the
Po
w
er board exists ?
Check if there is hi
g
h
level (2.5V-5.0V) at
Pin2 in J7
Check J3 volta
g
e of 12V
and J8 of 5V
No
No
Yes
Yes
Replace U201
Replace U201
Ho
w
to kno
w
w
hether the Po
w
er board is broken?
Still havin
g
problem
s
Check if Main board / LVDS
w
ire / Panel are
in
g
ood condition ?
No
Reconnect the po
w
er cord
w
ith
the outlet or Po
w
er board.
Yes
No
Check if the break in the po
w
er
circuit
Replace Q806 or Q809
No
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