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2. Troubleshooting guide
2.1 Panel is dark.
Power on main
power, check if
the red indicator
light in STANDBY
mode is bright ?
No
Check if the voltage
of
X601-11#
main
board
inputted 5V ?
No
Check if STANDBY
circuits
on
power
board are normal ?
Yes
Press key "POWER" of
remote control or the unit
to power on，check what
color of indicator light is?
on
is
Check if the voltage of
X601-1＃ on main board
is high level ?
Check if backlight board
is normal?
No
Check if circuits about
power control on main
board are normal?
Check if circuits about
power control on main
board are normal?
Red
Blue
Yes
Check if the voltage of
X601-13 ＃ on main board
is high level?
23
Yes
Check if power board
assembly is normal ?
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