KC KC-3913 User Manual - page 33
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Troubleshooting
Do not use other functions that are not mentioned in this user’s manual.
In case a problem occurs with your LED TV, please take the following steps first.
If you still have the problem, turn the power off and contact your dealer or an
authorized service center.
Problem
Action
The screen does not
appear.
Is the television plugged in? Insert the power plug.
Press the power button on the TV.
The screen appears too
slowly after the power
is turned on.
This occurs during the power-on self test in order to
remove excess screen noise during starup. But if the
screen does not come after 1 minute, contact your
dealer or an authorized service center.
Screen is too bright or
too dark.
Perform brightness adjustment or Contrast adjustment.
Screen is too large or
too small.
Adjust the screen size or resolution.
Stripes appear on the
screen and it shakes.
Discontinue use of wireless telephones, hair dryers, or
power tools. Consider installing a surge protector.
The screen does not
move.
Press the PAUSE button. Check if the Pause button is
pressed on external equipment.
Screen appears, Voice is
not heard.
1. Press the "MUTE" button.
2. Increase the sound level by pressing volume
adjustment button.
3. Check if sound terminal of external input is connected
properly.
4. Check if audio cables are connected properly.
5. Select and check the other input.
If the sound still does not work and the other channels
are the same after you have done as the above, contact
your dealer or an authorized service center.
Remote control does
not work.
1. Check if main power is On.
2. Check that the batteries of the remote controller were
loaded properly.
3. Check to see if any obstacle exists between the LED
TV and the remote control, then remove it, if any.
4. If the batteries have no power, replace them with
new batteries.