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Troubleshooting guide LCD-40XR10F
1．Panel doesn't light up.
Switch on main power,
check if red indicator lights
up in STANDBY mode.
Check
if
X108-3# (STB) on main
board is 5V.
Check STANDBY circuits
on power board.
Yes
No
voltage
of
No
No
Check backlight control
circuits N101 on main
board.
Press key "POWER" of
remote control or the unit
to turn on TV set, check
indicator light.
Blue
Check if voltage of
X108-13#
on
board is high level.
Yes
Check backlight circuits
on power board and
backlight board.
Red
main
Check if voltage of
X108-1# on main
board is high level.
Yes
Check power
board.
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