Dynex DX-40L260A12 User Manual (English) - Page 37

Troubleshooting DX-32L221A12/DX-40L260A12 33 Troubleshooting Warning Do not try to repair your TV yourself. Contact authorized service personnel. Video and audio Problem Solution Picture does not fill the screen. There are black bars around the picture. • Change the aspect ratio. An increasing amount of digital TV and movies are presented in wide screen (16:9). See "Adjusting the TV picture" on page 20. No picture (screen is not lit) and no sound. Dark, poor, or no picture (screen is lit), but sound is good. • Press on the TV or the remote control. • Make sure that Audio Only option is set to Off. See "Playing TV audio only" on page 22. • Make sure that the video cables are connected securely to the side of your TV. • Adjust the contrast and brightness. See "Adjusting the TV picture" on page 20. • Make sure that the power cord is plugged in. • Make sure that the correct video input source is selected. See "Selecting the video input source" on page 18. • Try another channel. The station may be experiencing problems. • Make sure that the incoming signal is compatible. • Make sure the antenna or cable TV is connected correctly and securely. See "Connecting a cable or satellite box" on page 8 or "Connecting an antenna or cable TV (no box)" on page 11. • Check the closed caption settings. Some TEXT modes can block the screen. • Try another channel. The station may be experiencing problems. • Make sure that the antenna or cable TV is connected correctly and securely. See "Connecting a cable or satellite box" on page 8 or "Connecting an antenna or cable TV (no box)" on page 11. • Adjust the brightness. See "Adjusting the TV picture" on page 20. • Make sure that the correct picture mode is selected. See "Adjusting the TV picture" on page 20. • If you are using an antenna, the digital channel signal may be low. To check the digital channel signal strength, see "Checking the digital signal strength" on page 24. • If you are using an antenna and the signal strength is low, adjust the antenna or use a highly directional outdoor antenna or set-top antenna with a built-in amplifier. • Make sure that the video cables are connected securely to the side of your TV. • The video cable(s) you are using may be bad. Try a new set. • Try another channel. The station may be experiencing problems. Problem No color, dark picture, or color is not correct. Only snow (noise) appears on the screen. Dotted lines or stripes appear on the screen. Double images. The picture has a few bright or dark spots. Solution • Try another channel. The station may be experiencing problems. • Adjust the color saturation. See "Adjusting the TV picture" on page 20. • Make sure that the video cables are connected correctly and securely to the side of your TV. • Make sure that the antenna or cable TV is connected correctly and securely. See "Connecting a cable or satellite box" on page 8 or "Connecting an antenna or cable TV (no box)" on page 11. • If you are using an antenna, the digital channel signal may be low. To check the digital channel signal strength, see "Checking the digital signal strength" on page 24. • If you are using an antenna and the signal strength is low, adjust the antenna or use a highly directional outdoor antenna or set-top antenna with a built-in amplifier. • Try another channel. The station may be experiencing problems. • Make sure that the antenna or cable TV is connected correctly and securely. See "Connecting a cable or satellite box" on page 8 or "Connecting an antenna or cable TV (no box)" on page 11. • If you are using an antenna, the digital channel signal may be low. To check the digital channel signal strength, see "Checking the digital signal strength" on page 24. • If you are using an antenna and the signal strength is low, adjust the antenna or use a highly directional outdoor antenna or set-top antenna with a built-in amplifier. • Make sure that the antenna or cable TV is connected correctly and securely. See "Connecting a cable or satellite box" on page 8 or "Connecting an antenna or cable TV (no box)" on page 11. • If you are using an antenna, the digital channel signal may be low. To check the digital channel signal strength, see "Checking the digital signal strength" on page 24. • If you are using an antenna and the signal strength is low, adjust the antenna or use a highly directional outdoor antenna or set-top antenna with a built-in amplifier. • Make sure that the video cables are connected securely to the side of your TV. • The video cable(s) you are using may be bad. Try a new set. • Other devices (for example, surround sound receiver, external speakers, fans, or hair dryers) may be interfering with your TV. Try turning off one device at a time to determine which device is causing interference. Once you have determined which device is causing interference, move it further from the TV to eliminate the interference. • Use a highly directional outdoor antenna, cable TV, or satellite TV. • A few bright or dark spots on an LCD screen is normal. It does not affect the operation of this TV.