Check if the power cord
connect well?
Power on and check
PD3 whether have 12V
No
Replace
PD3
How to know whether the Power board is broken?
Still
having
problems
Check
if
Main
board
/
LVDS
wire
/
Panel
are
in
good
condition
?
No
Reconnect
the
power
cord
with
the
outlet
or
Power
board.
Yes
EC805 whether have
300V
No
F800
or
D803/D804/D805/D807
Yes
S
ervice M
a
nu
a
l
Model No.:
- 57 -