Question about Westinghouse LTV-32w4 32.02 in. LCD HDTV

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Westinghouse lcd hd 32"

I usually have a beautiful picture then intermittently, it appears I lose video synch and the picture appears as lines of colors. Usually it stops on it own. I try other video sources and I get the same behavior. When I pull the HD cable I can usually load up the menu. I put the cable back the picture is as described. Re-setting the TV or re-cycling power seems to have no effect. It is still under warranty. It happens when hooked up with coax or HD cables. Usually the disturbance lasts 10-15 minutes and then I could go hours before it happens again. It usually happens within the first 20 minutes of powering the set on.

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  • Steve_b Sep 20, 2007

    The lines constitute three rows of vertical lines that reflect the predominate color of the picture.

  • Steve_b Sep 20, 2007

    Does this shed any light? I hooked up a glass tube TV off of the same cable box feeding the HDTV. When the HDTV goes "vertical" the regular TV is just fine. That would seem to eliminate any problems with cable provider. I gather from the posts that these LCD TV?s are more susceptible to interference that regular TV?s? Thanks,




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  • 6,966 Answers

Hi, In my location, this problem is usually caused by RF interference. Based on your posting/description, you only get the "lines of colors" when "hooked up with coax or HD cables". Please try a known good DVD disc with not other (cable/HD) connections to the input side of your TV. Make sure the disconnected cables are really far from the TV. Play your DVD and powerup your HDTV. Check if problem persist. If no, then you have RF interference which can come from a variety of sources; CB Radios, old wireless phones, two-stroke engines, electronic ballasts which piggy rides on your input cable/HD coaxial cable. It is also possible that the grounding/shielding of your cable/HD is loose, corroded or partially defective. If yes, your best bet is to seek replacement since as you posted it is still under warranty. Hope this be of some help/idea. Post back how things turn up or should you require further information. Good luck and kind regards.

Posted on Sep 20, 2007

  • 1 more comment 
  • Louie  Role
    Louie Role Sep 20, 2007

    Hi again,

    A couple of other actions you can try:
    1. Plug the HDTV to another outlet;
    2. If using a cable box, try plugging that to the same outlet as the TV (if possible) or try another outlet;
    3. Try a surge suppressor, line filter or an AVR (as used in PCs) with your HDTV (pls make sure it is capable of handling power requirement of the TV);
    4. Try the HDTV with no other appliances in the house running (just to check);


  • Louie  Role
    Louie Role Sep 20, 2007

    and then again,
    It may be your cable/HD provider. Have you tried the same cable hooked up to your HDTV with another TV?

  • Louie  Role
    Louie Role Sep 20, 2007

    Hi Steve,

    I have to agree with you then that we can rule our the cable TV provider.

    On the next point of being "more susceptible to interference", normally HDTV by their very nature have more filters and shielding than "normal" TVs so interference should not really have that much effect on them. It is just that other than an internal component's intermittent failure, interference is the next possible cause of your problem. If we rule out interference as well as your cable TV, that leaves us only with the HDTV itself.

    If it is the HDTV itself, merely opening it up for a look & see would void your warranty. On the other hand, what's to stop any user from tinkering with the remote? If you'd care to try on the original remote control:
    1. press the menu button (set-up menu);
    2. scroll down to the Video/Picture settings;
    3. on the VGA settings select Auto Sync;
    4. If problem persists, manually adjust the horizontal and vertical settings (the idea is to bring the display to the center).

    If problem persist, then probably your best bet is to call in for service of a qualified professional or demand unit replacement.



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