8Troubleshooting

Pictureproblems

Onscreen Demo Pop-up

If your TV is displaying a Delno pop-up screen, reset the Store / Home mode setting to Home. For more information see "Installation setup selection" on page 43

TV will not turn on.

Ensure the power cord is plugged in properly, and then press the POWER button. Ensure the TV is plugged into a working AC power outlet by plugging another device into the AC power outlet to verify the AC power outlet is working.

Replace the batteries in the remote control, see "Installing batteries" onpage 33

Try the control panel buttons on the TV.

Pictureproblems

General picture problems.

Check the antenna/cable connections, see "Connecting Your TV" on page 22

Press the INPUT button on the remote control or on the TV and select a valid video input source, see "Selecting the video input source" on page 49. If no device is connected to an input on the TV, no picture appears when you select that particular input source. For device connection details, see "Connecting Your TV" on page 22

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" on page 93

Picture size changes by itself or when the TV is turned OFF and back ON.

Turn the Auto Aspect feature of the TV to OFF. see "Using the advanced picture settings" on page 93

Cannot select external video sources or channels 3 or 4.

If you cannot view signals from external devices connected to VIDEO, ColorStream TM HD, HDMI 1, HDMI 2, or from channel 3 or 4, ensure that the Input Lock is set to Off, see "Using the input lock feature" on page 77

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Toshiba 40L2400U, 50L2400U manual Pictureproblems, Troubleshooting