Troubleshooting - NEC MultiSync LCD3735WXM User Manual

Troubleshooting

Problem
There is no picture or sound
There is no sound.
There is no picture or sound , just noise.
Picture is not clear.
Picture is light or improperly tinted.
The picture is too dark.
Remote control does not work.
The picture is not sharp.
The picture is doubled or tripled.
The picture is spotted.
There are stripes on the screen or colors fade.
Check item
·
Make sure the Power cord is properly inserted in the
power outlet.
·
Unit is picking up interference from something other
than a broadcast source. Place antenna away from
devices that can cause interference. Make sure the
input mode is correctly set for the desired input type.
·
Make sure the main power switch of the main unit is
on.
·
Make sure the volume is not set to minimum.
·
Make sure the sound is not set to mute.
·
Make sure that headphones are not connected.
·
Make sure input source is connected correctly.
·
Make sure the antenna cable is properly connected.
·
Consider whether TV/PC/AV/S-V/Y,Cb,Cr signals are
being properly received.
·
Make sure the antenna cable is properly connected.
·
Consider whether TV signals are being properly
received.
·
Check color adjustment.
·
Check tint setting.
·
Check the Brightness setting.
·
Fluorescent lamp may have reached the end of
service life.
·
Check the batteries in the remote controller.
·
Make sure the remote sensor window is not under
strong fluorescent lighting.
·
Make sure there is nothing blocking the remote sensor
on the unit.
·
The reception may be weak.
·
Make sure the antenna is facing the right direction.
·
Check the sharpness function.
·
Make sure the antenna is facing the right direction.
·
There may be reflected electric waves from mountains
or buildings causing interference.
·
There may be interference from automobiles, trains,
high voltage lines, neon lights, etc.
·
There may be interference between the antenna cable
and power cable. Try positioning them further apart.
·
Is the unit receiving interference from other devices?
Transmission antennas of radio broadcasting stations
and transmission antennas of amateur radios and
cellular phones may also cause interference.
·
Use the unit as far as possible from devices that may
cause possible interference.
LCD 3735WXM E-27