29
Troubleshooting
Symptoms
Explanation/solution
No picture is available
No picture is available. Check the energy saving settings.
Fail to receive any
channel.
Ensure proper power cord connection. Turn on the TV set. Check antenna/cable
connection.
Ensure your TV source cable settings are correct.
The TV set is locked in
a certain channel.
Execute auto program searching and add available channels not saved in the TV channel
memory.
Fail to receive or select
channels.
Execute auto channel scanning and add available channels not saved in the TV channel
memory.
Check the antenna connection at the back of the TV set to confirm whether it is
connected to the TV set correctly. The symptom in the left may be caused by the
broadcasting station. Try other channels and adjust the contrast and brightness settings.
The TV set is turned off
automatically.
Check whether the sleep timer is enabled or identify the auto turn-off time settings.
Check the computer power management in general settings.
Some AV files can not
be displayed.
Check connection between optional AV equipment and the TV source. Press the Source
(input) key on the remote control.
Select the input you desire from the external input list.
Poor picture quality
Image quality is inferior
to that as viewed in the
seller shop.
Picture quality depends on the source quality.
Ghost.
Check antenna/cable connection. Check the antenna position and direction.
The TV screen only
displays snowflakes and
noise.
Check whether the antenna has been broken or bent.
Check whether eth antenna has reached its service life (3-5years under normal use
conditions and 1-2 years if used by seaside).
Dotted line or fringe.
Keep the TV set far away from noise source such as automobile, motorcycle or blower.
If 300
Ω
dual-core cable is used, keep noise far away from the TV set or try to use 75
Ω
coaxial cable.
No color/dark/
improper color/too
bright
Select the intended mode according to the picture settings.
Adjust the picture mode option in the picture settings.
Picture noise
Ensure the antenna is connected by a 75
Ω
coaxial cable and keep the antenna cable far
away from other connection cables.
To avoid TV set interference, be sure to use unworn antenna cables.
Fail to play photos,
music files or AV files
or the playing quality
is poor.
Check whether the source is proper for the supported mode.
MP3/MP4 player
failed to be identified
normally by the USB
interface of the TV set.
Whether the USB cable is good.
Whether the USB connection cable of the TV set side is inserted properly.
Whether the power supply for the MP3/MP4 player is turned on.
Try to connect the USB cable properly and switch on the MP3/MP4 player for normal
identification of the TV set side.
The user forgets the
password already set.
Try to enter the general password-5363.
No sound/noise
Normal picture
without sound.
Check the volume control. Press the Mute key on the remote control or the VOL
∧
key to
make the
symbol on the screen. Disconnect the earphones.
For the HDMI equipment, identify the output settings of equipments connected are set as
PCM. The HDMI input of the TV set supports PCM 32, PCM 44.1 and 48kHz.
Noise
Ensure the antenna is connected with a 75
Ω
coaxial cable and keep the antenna cable
away from other connection cables.
To avoid TV set interference, ensure to use unworn antenna cables.
