Picture Problems - Toshiba 39L4300UM User Manual

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
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
page 47.
Try the control panel buttons on the TV.

Picture problems

General picture problems.
Check the antenna/cable connections, see
26.
Press the INPUT button on the remote control or on the TV and select a
valid video input source, see
71. If you have no picture after selecting a Input source, check the
device connected to that input for proper operation. For device connection
details, see
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
features" on page
If Edge Enhancer does not achieve a sharper picture, change the
Sharpness value to increase the sharpness level, see
page 99.
Video Input Selection problems.
If the Input Selection window does not appear when you press the INPUT
button on the remote control or the TV control panel, press the INPUT
button 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,
ensure that the Input Lock is set to Off, see
page 80.
"Resetting to Factory Defaults" on page
"Connecting Your TV" on page
99.
Troubleshooting
Picture problems
"Connecting Your TV" on page
"Selecting the video input to view" on page
26.
"Using the advanced picture settings
"Locking video inputs" on
90.
"Installing batteries" on
"Edge Enhancer" on
161