28 TroubleshootingDX-32L151A11/DX-37L130A11TroubleshootingBefore calling for service, check the following information for possiblesolutions to problems you may experience. If none of these solutionswork, turn off the TV, then turn it on again.Caution: Do not try to repair the TV yourself. Refer all servicing toqualified repair personnel.Video and audioRemote controlGeneralProblem SolutionNo picture (screen is not lit)and no sound.• Make sure that the power cord isplugged in.• Press POWER on the TV or theremote control.• Make sure that the correct videoinput source is selected. For moreinformation, see “Selecting thevideo input source” on page 12.• Try another channel. The stationmay be experiencing problems.Dark, poor, or no picture(screen is lit), but sound isgood.• Adjust the brightness. For moreinformation, see “Adjusting theTV picture” on page 14.• Make sure that the correct picturemode is selected. For moreinformation, see “Adjusting theTV picture” on page 14.• Make sure that the antenna orcable TV is connected correctlyand securely. For moreinformation, see “Connecting anantenna, cable TV, or satellite TVbox” on page 9.No color, dark picture, orcolor is not correct.• Adjust the color saturation. Formore information, see “Adjustingthe TV picture” on page 14.Only snow (noise) appearson the screen. • Try another channel. The stationmay be experiencing problems.• Make sure that the antenna orcable TV is connected correctlyand securely. For moreinformation, see “Connecting anantenna, cable TV, or satellite TVbox” on page 9.• Check the signal strength. See“Checking digital TV signalstrength” on page 19.Dotted lines or stripesappear on the screen.• Adjust the antenna.• Move the TV away from noisesources such as cars, neon signs,or hair dryers.Double images. • Use a highly directional outdoorantenna or cable TV.The picture has a few brightor dark spots.• A few bright or dark spots on anLCD screen is normal. It does notaffect the operation of this TV.Good picture, but nosound.• Make sure that the sound is notmuted.• Make sure that the sound mode isset to Stereo or Mono. For moreinformation, see “Selecting theaudio mode” on page 16.Audio noise. • Make sure that there is nointerference with infraredequipment such as a cordlesstelephone or headphones. Movethe infrared equipment awayfrom the TV to eliminate thenoise.Problem SolutionRemote control does notwork.• Make sure that the power cord isplugged in.• Make sure that there are noobstructions between the remotecontrol and the remote controlsensor on the front of the TV.• Make sure that the batteries areinstalled correctly. For moreinformation, see “Installingremote control batteries” onpage 7.• Replace the batteries. For moreinformation, see “Installingremote control batteries” onpage 7.Trouble programming yourexisting universal remotecontrol.• See instructions and a table ofcommon codes in “Programminga universal remote control towork with your TV” on page 8.• Codes are subject to change. Forup to date codes, go towww.dynexproducts.com.• Replace the batteries. For moreinformation, see “Installingremote control batteries” onpage 7.• Refer to the User Guide thataccompanied your universalremote control and contact themanufacturer if problems persist.Problem SolutionOne or more channels donot display. • Make sure that the channels arenot blocked. For moreinformation, see “Setting parentalcontrol levels” on page 21.• Make sure that the channels arenot hidden. For more information,see “Hiding channels” on page 17.• The channel may have beendeleted from the channel list. Youcan tune to the channel bypressing the number buttons oryou can add the channel back tothe channel list. For moreinformation, see “Changingchannel settings” on page 17.Password is lost. • Enter 9999 to access parentalcontrols, then set a newpassword. For more information,see “Setting parental controls” onpage 19.Some settings cannot beaccessed.• If a setting is grayed, the setting isnot available in the current videoinput mode.TV cabinet creaks. • When the TV is in use, thetemperature rises naturally andmay cause the cabinet to expandor contract which can cause acreaking noise. This is not amalfunction.Control buttons on the TVdo not work.• Disconnect the power cord, wait afew seconds, then reconnect thepower cord and turn on the TV.