Troubleshooting - Toshiba 40VL20 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.
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
display switch the TV on.
• If you switch the TV on at 0°C and under, wait
until the warms up.
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Reference section
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
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.
3D problems
• If 3D images are not correct, the 3D format
may be diff erent.
Change the 3D format from Quick Menu (-
page 27).
• The left and right sides of 3D images may be
reversed.
Switch the left and right (- page 29).
• If 2D images are not correct, the 2D format
may be diff erent.
Change the 2D format from Quick Menu (-
page 27).
• Remove all obstructions between the 3D
Glasses and the TV.
• Charge the battery.
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.