Zenith A27A74R Operating Manual

Also see for A27A74R: Service manual Operating guide

Contents

206-3372-AR E F E R E N C E M A I N T E N A N C E P A G E 3 7Some quickand easytips to fixingproblemsyourself.TroubleshootingSYMPTOMSSnowy picture and lousy sound.Multiple images or ‘ghost shadows.’Interference: Sharp lines acrossthe screen and lousy sound.Normal picture but no sound.No picture and lousy sound.No picture and no sound —The thing is just DEAD!No color, but the sound is O.K.Picture has a big black boxon it, but the sound is O.K.Picture has two horizontalblack bars, one on top andone on bottom.Remote control doesn’t work.Menu options won’t change.If all else fails, call 1 (847) 391-8752, extension 5, between 8:30 a.m. and 4:30 p.m. Central Standard Time.SOLUTIONS• Check your antenna connection or location.• Check your antenna direction and/or location.• Make sure the wire from your antenna to your Entertainment Machine isproperly connected.The following may cause image problems or distortion:Electrical appliances, powerful lights, cars, trucks; computers or portable phones;Medical equipment• If possible increase the distance between your Entertainment Machine andthe offending appliance. Or shut one of them off.• Check volume control.• Make sure the TV is not Muted.• Try another channel. The problem may be the broadcast, not yourEntertainment Machine.• Are the Audio A/V cables properly installed?• Are the wires for external speakers (if you have external speakers)properly installed?• Are you in TV or Cable tuning mode (See Auto Program on page 11), and shouldbe in the other?• Make sure output channels on all A/V equipment are on the same channel (3 or 4).• Check that all connections are tight.• Is the AC power plugged in?• Check that your AC power outlet works. (Test it by plugging in something elseor try another plug.)• Make sure your brightness and audio controls are set properly.• Try another channel. The problem may be with the broadcast, not yourEntertainment Machine.• Check the color control in the Video menu.• Try another channel. The problem may be with the broadcast.• The CC (closed caption) option may be in Text mode. Select OFF in theCaptions/Text menu. See page 16.• Your program is in letterbox. This means that the shape of your TV issquare, but the program is a rectangle. Think of the bars as empty space theprogram doesn’t fill; not picture that’s blocked out. Because this format is adirect representation of film as you see it in the movies, you are actually seeingMORE of the program when you see those bars. Trust us.• Make sure the batteries are fresh and installed properly.• Check to see that the MBR (Multi Brand Remote available on some models) is inthe right mode for your equipment.• Try unplugging the TV, waiting about five minutes, and then plugging it back inand trying again.