Toshiba 14DL74 User Manual

If you experience any of the following difficulties while using the TV, check the list 
below before consulting your dealer.

 

Please note the following common causes of TV reception interference:

Black spots or vertical lines may appear. Screen jumps crazily or is very unstable. 
This is commonly the result of car ignition noise interference, neon lights, or other 
forms of electrical interference.

This is the result of two signals: one being the original signal while the second sig-
nal is a slightly delayed signal, normally the result of bouncing off tall buildings or 
other obstructions. This problem might be corrected by adjusting your outdoor 
antenna direction.

Lots of tiny dots appear on your screen. This is the result of poor reception signals.
You may have to boost your antenna signal.

You may have problems that can be fixed with a few minor adjustments. Look for 
the type of phenomenon you are experiencing in the following lists and then apply 
the suggestions to resolve the problem.

• Check if you have accidentally pressed the MUTE button.
• Check if the same problem exists on other channels. If the other channels can 

be viewed correctly, then there is probably a fault in the TV program you are 
viewing. 

• Verify all connections are firmly attached.
• If the problem persists, contact your dealer.

• Check brightness and contrast levels to see if they have been tuned to the min-

imum level thus making the screen dark.

• Check the main power source.
• Check if the same problem exists on other channels. If the other channels can 

be viewed correctly, then there is probably a fault in the TV program you are 
viewing. 

• Press the TV/AV1/AV2 button on the Remote Control or TV/VIDEO on the 

top of the unit to get to the desired display option.

• If you are using an outdoor antenna, please check your connections.
• Check if your power cord is connected properly; it may be loose.
• Disconnect cable. Reconnect cable.
• Ensure that the antenna and cable are properly connected to the TV.
• Ensure that the AC adapter and power cord are not damaged.
• Test the antenna or cable on another TV.
• If the problem persists, contact your dealer immediately.

• Check your brightness level.
• Check your contrast level.
• Load default setting. (See “Load Default Setting” on page 22.)
• Check your LCD monitor for possible damage.