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No sound No picture No light
Check if the power cord
is correctly connected
Yes
No
Connect the
power cord to the
socket
Check if there is voltage
pressure in J3(12V)
ଞ
J7(5Vstb)
Replace
Remote
Control Board
Yes
Replace D806 or
D811
Still having
problem
s
Change
Mainboard
Check if L801
ஂ
1.32V
ஃଞ
L804
ஂ
1.8V
ஃଞ
L808
ஂ
3.3V
ஃଞ
D800
ஂ
2.5V
ஃ
is
working
No
Chang
U7
Yes
Chang U801
OR U802
OR U803
OR U804
No
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