Toshiba 52X3000A Flat Panel Television User Manual


 
39
Reference section
Troubleshooting
Before calling a service technician, please check the following
table for a possible cause of the symptom and some solutions.
Symptom and solution
TV will not turn on
Make sure the power cord is plugged in, then press ! or
1.
The remote control batteries may be dead. Replace the
batteries.
No picture, no sound
Check the antenna connections.
No sound, picture OK
The sound may be muted. Press 2+, 2– or U.
The station may have broadcast difficulties. Try another
channel.
Poor sound, picture OK
The station may have broadcast difficulties. Try another
channel.
Poor picture, sound OK
Check the antenna connections.
The station may have broadcast difficulties. Try another
channel.
Adjust the PICTURE menu.
Poor reception of broadcast channels
Check the antenna connections.
The station may have broadcast difficulties. Try another
channel.
Make sure the Color system is properly set.
Teletext problems
Check the antenna connections.
Good performance of text depends on a good strong
broadcast signal.
Multiple images
The station may have broadcast difficulties. Try another
channel.
Antenna reception may be poor. Use a high directional
outdoor antenna.
Check if the direction of the antenna has changed.
Poor color or no color
The station may have broadcast difficulties. Try another
channel.
Adjust the Tint and/or Color in the PICTURE menu.
The remote control does not operate
Remove all obstructions between the remote control and
the remote control sensor on the TV.
The remote control batteries may be dead. Replace them
with new ones.
Check that the TV/STB/DVD switch on the remote
control is properly set.
Some pixels of the screen do not light up
The LCD display panel is manufactured using an
extremely high level of precision technology, however,
sometimes some pixels of the screen may be missing
picture elements or have luminous spots. This is not a sign
of a malfunction.
The picture brightness varies when you switch the
TV on.
If you switch the TV on at 0°C and under, wait until the
warms up.
The brightness of the screen comes down, or flickers
of the screen are caused, or some parts of the screen
do not light up.
When you just buy and start to use this TV, a flickering
may be caused in the screen. In this case, switch off the
TV, then switch on it again to cure the condition.
The cold cathode fluorescent lamp used for the back light
on this TV has longevity. When the brightness of the
screen comes down, or the flickers of the screen are
caused, or some parts of the screen do not light up, it may
reach the end of its life. Contact a service technician.
Symptom and solution - digital only -
Poor picture
Check the antenna connections. Make sure it is aligned to
the correct broadcast direction.
Check the signal level and quality in the Manual Scan
menu.
If you use any kind of amplifier to boost the signal level,
check whether it works well, and ask for help from the
antenna installer.
No picture
•Use the Manual Scan menu to rescan this channel.
Try another channel.
Reduce RF amplifier gain if connected to RF booster.
No sound from DIGITAL AUDIO
The sound may be muted. Press 2 +, 2 - or U.
Make sure the TV is adjusted to the correct Audio Track.
•Use the Manual Scan menu to rescan this channel.
Try another channel.
Not all channels are available after using the Auto
Scan when tuning the TV for the first time.
This symptom is caused by unexpected frequency offset.
Using the Manual Scan menu to scan for the missing
channels. Once the TV picks up the signal, all the
transmission parameters will be stored in the internal
memory.
Cannot lock signal by using Manual Scan
Check the frequency that you have entered is exactly the
Middle frequency of the wanted channel.
Refer to the solutions for “Poor picture”.
No Teletext, no Subtitle
Make sure the channel that you are watching carries
Teletext/Subtitle information from I-Plate.
Cannot receive channels after moving the TV
between cities (e.g. from Melbourne to Sydney)
Refer to page 11 to reset data.
Weak signal appears on one channel but not the
other, but these channels have the same logical
number
Please make sure that you do not keep duplicate channels
(i.e. channels with the same logical channel number but
different physical numbers, see page 13). If you do, please
delete the duplicate ones and keep only one channel with
the best signal strength.
Program Timer and/or Alarm do not operate
properly.
Check the antenna connections.
Weak signal may cause inaccurate time information.
Forget Password
Please contact to the local dealer.