Toshiba 55L7400U, User Manual

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Troubleshooting
Other problems.
If your TV’s problem is not addressed in this Troubleshooting chapter or
the recommended solution has not worked, use the Reset Factory Defaults
procedure, see “Resetting to Factory Defaults” on page 91 .
TV will not turn on.
Check the AC wall outlet by trying another device in the AC wall outlet.
Ensure the power cord is plugged in properly, and then press the
POWER
button.
Replace the batteries in the remote control, see
“Installing batteries” on
page 44 .
Try the control panel buttons on the TV.
Picture problems
General picture problems.
Check the antenna/cable connections, see “Connecting Your TV” on page
25 .
Press
INPUT
on the remote control or on the TV and select a valid video
input source, see “Selecting the video input to view” on page 70 . If
you have no picture after selecting an Input source, check the device
connected to that input for proper operation. For device connection
details, see “Connecting Your TV” on page 25 .
Antenna reception may be poor. Use a highly directional outdoor antenna
(if applicable).
The station may be having broadcast difficulties. Try another channel.
Adjust the picture quality, see “Using the advanced picture settings
features” on page 100 .
If Edge Enhancer does not achieve a sharper picture, change the
Sharpness value to increase the sharpness level, see “Edge Enhancer” on
page 100 .
Video Input Selection problems.
If the Input Selection window does not appear when you press
INPUT
on the remote control or the TV control panel, press
INPUT
a second
time. The TV displays the next video input source and the Input Selection
screen.
Cannot view external signals.
If you cannot view signals from external devices connected to VIDEO 1,
VIDEO 2, ColorStream HD, HDMI 1, HDMI 2, HDMI 3, HDMI 4 or PC,
Picture problems