Dynex DX-19L200A12 - Manual (Page 42)

38
Troubleshooting DX-19L200A12
Picture quality is
good on some
channels and poor
on others. Sound is
good. • The problem may be caused by a poor or
weak signal from the broadcaster or cable
TV provider.
• If you connect to cable or satellite TV
without a set-top box and experience poor
picture quality, you may need to install a
set-top box to improve signal reception and
picture quality. Contact your cable or
satellite TV provider about upgrading to a
set-top box.
Dark, poor, or no
picture (screen is lit),
but sound is good. • Try another channel. The station may be
experiencing technical issues.
• Make sure that the antenna or cable TV is
connected correctly and securely. See
“Connecting a cable or satellite box” on
page 7 or “Connecting an antenna or cable
TV (no box)” on page 10.
• Adjust the brightness. See “Setting your
picture preference” on page 17.
• Make sure that the correct picture mode is
selected. See “Setting your picture
preference” on page 17.
• 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 27.
• 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 back of your TV.
• The video cable(s) you are using may be
bad. Try a new set.
No color, dark
picture, or color is
not correct. • Try another channel. The station may be
experiencing technical issues.
• Adjust the color saturation. See “Setting
your picture preference” on page 17.
• Make sure that the video cables are
connected correctly and securely to the
back 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 7 or “Connecting an antenna or cable
TV (no box)” on page 10.
• 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 27.
• 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.
Only snow (noise)
appears on the
screen. • Try another channel. The station may be
experiencing technical issues.
• Make sure that the antenna or cable TV is
connected correctly and securely. See
“Connecting a cable or satellite box” on
page 7 or “Connecting an antenna or cable
TV (no box)” on page 10.
• 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 27.
• 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.
Problem Solution
Dotted lines or
stripes appear on
the screen. • Make sure that the antenna or cable TV is
connected correctly and securely. See
“Connecting a cable or satellite box” on
page 7 or “Connecting an antenna or cable
TV (no box)” on page 10.
• 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 27.
• 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 back 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. After you have determined
which device is causing interference, move
it further from the TV to eliminate the
interference.
Double images. • Use a highly directional outdoor antenna,
cable TV, or satellite TV.
The picture has a
few bright or dark
spots. • A few bright or dark spots on an LCD screen
is normal. It does not affect the operation of
this TV.
Good picture, but no
sound. • Increase the volume.
• Make sure that the sound is not muted.
• Make sure that the correct audio mode is
selected.
• Make sure that the audio cables are
connected correctly and securely to the
back 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 7 or “Connecting an antenna or cable
TV (no box)” on page 10.
• 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 27.
• The audio cable(s) you are using may be
bad. Try a new set.
Poor picture • Make sure that the room is not too bright.
Light reflecting off the screen can make the
picture difficult to see.
• If an S-VHS camera or a camcorder is
connected while another connected device
is turned on, the picture may be poor. Turn
off one or more devices.
Good sound but
poor color • Adjust the contrast, color, and brightness
settings.
Audio noise • 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. After you have determined
which device is causing interference, move
it further from the TV to eliminate the
interference.
Problem Solution
DX-19L200A12_11-0606 MAN_ENG_V1.book Page 38 Thursday, November 3, 2011 10:06 AM