Troubleshooting - Toshiba 40L555 Series Owner's Manual

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, and
then press 1.
• The remote control batteries may be dead.
Replace the batteries.
No picture, no sound
• Check the aerial connections.
No sound, picture OK
• The sound may be muted. Press 2 +, − or
.
• The station may have broadcast diffi culties.
Try another channel.
Poor sound, picture OK
• The station may have broadcast diffi culties.
Try another channel.
Poor picture, sound OK
• Check the aerial connections.
• The station may have broadcast diffi culties.
Try another channel.
• Adjust the PICTURE menu.
Poor reception of broadcast channels
• Check the aerial connections.
• The station may have broadcast diffi culties.
Try another channel.
• Make sure the Colour System is properly set.
Teletext problems
• Check the aerial connections.
• Good performance of text depends on a good
strong broadcast signal.
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Reference section
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 or under, it takes
some time for the TV to warm up.
Multiple images
• The station may have broadcast diffi culties.
Try another channel.
• Aerial reception may be poor. Use a high
directional outdoor aerial.
• Check if the direction of the aerial has been
changed.
Poor colour or no colour
• The station may have broadcast diffi culties.
Try another channel.
• Adjust the Tint and/or Colour 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 the batteries.
If the PIN code has been forgotten:
• Use the Master PIN (code of 1276), then
change to a number of your choice. Ensure
that no-one else can use the Master PIN by
removing the Owner's Manual.
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