Reference Section; Troubleshooting; Symptom And Solution - Toshiba 42WL55A Owner's Manual

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

Symptom
TV will not turn on
No picture, no sound
No sound, picture OK
Poor sound, picture OK
Poor picture, sound OK
Poor reception of broadcast channels
Teletext problems
Multiple images
Poor color or no color
The remote control does not operate
Some pixels of the screen do not light 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.
The picture brightness varies when you
switch the TV on.
• Make sure the power cord is plugged in, then press
• The remote control batteries may be dead. Replace the batteries.
• Check the antenna connections.
• The sound may be muted. Press
• The station may have broadcast difficulties. Try another channel.
• The station may have broadcast difficulties. Try another channel.
• Check the antenna connections.
• The station may have broadcast difficulties. Try another channel.
• Adjust the PICTURE menu.
• Check the antenna connections.
• The station may have broadcast difficulties. Try another channel.
• Make sure the Color system is properly set.
• Check the antenna connections.
Good performance of text depends on a good strong broadcast signal.
• 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.
• The station may have broadcast difficulties. Try another channel.
• Adjust the Tint and/or Color in the PICTURE menu.
• Remove all obstructions between the remote control and the remote
control sensor in the TV.
• The remote control batteries may be dead. Replace them with new
ones.
• Check that the TV/VCR/DVD switch on the remote control is
properly set.
• 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.
• 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.
• If you switch the TV on at 0°C and under, wait until the display
warms up.
Solution
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