24. TROUBLE SHOOTING
Before you call the service person, check the following points.
PROBLEM
No picture on screen and no sound
from speakers.
No picture from AV terminal
Picture is displayed but no sound from
the speakers.
Picture is too light.
Picture is too dark.
Remote control does not work
The picture is not sharp. The picture
moves. Picture is snowy and
noisy sound.
The Multiple image and normal sound
The picture is spotted or interference
on picture and noisy sound.
There are stripes on the screen or color
fade on interference
Picture with no color but normal sound
Picture is scrambled and with normal
or weak sound
Incorrect position of picture in PC mode
Vertical bars or stripes on background
in PC mode
Horizontal noise in PC mode
CHECK ITEM
> Insert the AC power cord plug securely in AC power socket.
> Make sure the set is not in stand by mode.
> Turn on the power button on the set.
> Check the brightness setting of the set
> Make sure a cable with no video input signal is connected to the AV
INPUT terminal.
> Check the volume settings.
> Make sure the sound is not muted.
> Make sure the speaker is not turned off in sound menu.
> Make sure that sound system is correct.
> Make sure COLOR and CONTRAST settings are proper.
> Make sure BRIGHTNESS setting is not set too low. Check the BRIGHTNESS setting.
> Change the batteries.
> Make sure the infrared transmitter window is not receiving strong light such as light
from fluorescent lamps.
> The reception may be weak try another channel.
> The state broadcast may also be bad.
> Make sure that the antenna is facing the right direction.
> Make sure the outside antenna is not disconnected.
> Try different channels if ok probably it is station problem.
> Make sure the antenna is facing the right direction.
> There may be reflected electric waves.
> There may be interference form automobiles, trains, high voltage lines, neon lights etc.
> There may be interference between the antenna cable and the power cable.
Try positioning them further apart.
> Check color setting or the set and check color system.
> Check if station is broadcasting color picture.
> Retune Channels
> Auto adjust H/V position.
> Manually trail to adjust HV position.
> Auto adjust, try to adjust clock manually.
> Auto adjust or adjust phase and clock.
22
> Is the unit receiving interference from other devices? Transmission antennas of radio
broadcasting stations and noisy sound and transmission antennas of cellular phone.
> Place the unit as far as possible from devices that may cause possible interferences
