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Power Surge: TV Damaged?

Discussion in 'Electronic Repair' started by aether, Aug 13, 2005.

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  1. aether

    aether Guest

    Due to the heavy load on the local power grid during the summer,
    periodically, the power will go out. I noticed no change in the picture
    quality of my particular TV. (Philips 30" HDTV) Until now, that is.
    While looking at the screen, I noticed the usual crispness diminished,
    and an almost cataract type greyish film across the screen. It now
    looks like a somewhat old TV, when, in fact, it's not even a year old.
    It looks as if the brightness is turned up, but it's set low. (far
    before mid; I never have high settings)

    Would electrical damage be so subtle? Is there another explanation? I'm
    not imagining this, as, and I'm in no way bragging, my sense of
    perception is very good. For instance, if someone were to raise the
    level of brightness, picture, or sharpness, even an increase of one, I
    notice. This is quite irritating to me, as I always looked forward to,
    and admired, the nice picture I had.
  2. Guest

    A power surge problem would usually exhibit itself as a problem with
    the television not turning on or other control issues. Subjective
    picture issues like you described are things that could be contributed
    to source material or other problems.... but definately not power surge
    - - - - - - - -
  3. danyexp

    danyexp Guest

    Doubt it. If it's a plasma I'd say possibly since anything of the slightest
    nature can affect them, but if it's a CRT or LCD I seriously doubt it. As
    another poster said, power surge damage ususally results in a totally dead

    I'd check the picture settings in the menu. Some newer TVs like my Sony Wega
    will display a greyish film picture when the TV is in menu mode and the menu
    keys haven't been pressed for awhile. I also thought there was a problem
    until I figured it out.
  4. Someone

    Someone Guest

    Another source for surge that many overlook is when you plug in a vacuum
    cleaner, power tool, or a fitness equipment on the same multi-outlets surge
    suppressor. Surge suppressors don't protect what's plugged in the outlets
    from each other. They only protect from outside sources(from the wall
  5. aether

    aether Guest

    This has happened multiple times. Since there are so many appliances,
    and in the area, so many air conditioning units on, using the
    microwave, for instance, will sometimes result in the power going out.

    Also, there seems to be faint, horizontal lines. Little waves, almost.
    They're not so apparent, but are so when you look closely. They weren't
    present until a couple days ago.

    Another possible explanation: what if someone in the residence had
    increased the brightness, for instance, and then there was a
    (localized) power surge? Could this have damaged the picture? Stripping
    the picture, and leaving a kind of imprint? I appreciate the responses
    I've gotten.
  6. Guest

    NO, as it has been indicated in a couple reply posts now... a power
    surge, local or otherwise is NOT the source of your complaint.
    Maybe it's the other folks in the residence that are playing with the
    picture settings..... everybody is an expert.
    If you are still having problems it may be time to have a service shop
    fix it for you.... things do break and components do go bad.... and as
    has been said, you can not logically blame it on the power company so
    they won't be paying the bill to fix it for you. Maybe you should
    call Philips.... they might extend the warranty?
    .. . . . . . . . . .
  7. aether

    aether Guest

    I'm not one to return items like this unless there's great reason to.
    If it went dead, for instance. As it stands, other people will perhaps
    notice a slight change in the picture if I ask them, but it doesn't
    phase them. As yet, I've no idea what brought about this decline in
    picture quality. It seems to have happened out of nowhere, but I know
    something caused it. Maybe it's simply a bad CRT tube? Are Philips TV's
    known for this?
  8. aether

    aether Guest

    Something odd happened a few hours ago. There was a lightening storm,
    and the power went out for a minute. When the TV came back on, there
    was a reddish imprint on the bottom right portion of the screen.
    However, in less than an hour, the imprint was essentially gone. What
    was this exactly, and does it indicate any type of damge?
  9. Ken Weitzel

    Ken Weitzel Guest


    Betcha a dollar against a donut that the power flickered
    on for a fraction of a second and off again during the

    That may have started the degaussing process and then was
    rudely interrupted. Leaving you with a bit of a kaleidoscope
    effect for a while.

    If this is the case, then a couple of on and off cycles with
    ample cool down time between will leave it good as new, with
    no problem.

    Take care.

  10. Someone

    Someone Guest

    Try unplugging it overnight, and then plug it back on the next day. Normally
    30 minutes would suffice.
  11. Guest

    There was NO damage done by the power outage.....
    AGAIN... one more time....
    ..... the picture problems you are seeing ARE ABSOLUTELY NOT related to
    power surges. Power surge damage usually results in a dead set that
    will not turn on. The reddish imprint you saw was probably residual
    magnetic disturbance from the most recent power outage that went away
    as a result of the automatic degaussing circuitry.
    AGAIN... one more time....
    ..... the problems you are seeing ARE ABSOLUTELY NOT related to power
    AGAIN... one more time, for the last time....
    ..... the problems you are seeing ARE ABSOLUTELY NOT related to power
    - - - - - - - - - -
  12. aether

    aether Guest

    So, are the problems I'm experiencing in any way related to the power

    I'll try unplugging it overnight. Appreciate all the help I've received
    here. Even Mr. Electricity. ;)
  13. kip

    kip Guest

    Some people just don't understand and don't want to understand.
    aether are you one of those people ?
  14. James Sweet

    James Sweet Guest

    Probably not a surge, but a brief interruption, close enough to the average
    non-tech person. I have seen nearby lightning strikes magnetize the shadow
    mask as well and cause the same problem, again it goes away after a degauss
    cycle or two.
  15. Someone

    Someone Guest

    FYI, the reason I said to unplug it(not just turn it off), is that some TV's
    will not do degaussing unless the TV has been unplugged for a long time,
    plus there maybe some settings in its memory that were corrupted by a brief
    power outage that might have caused it to misbehave. My TV's manual for
    instance says to unplug the TV for 30 minutes if it was relocated...
  16. aether

    aether Guest

    At this point, it's on the cusp of returnable. It's not yet evident
    enough, however, that it would be accepted back. If you know what I
    mean. Subtleties are lost to most people. You could change most peoples
    screen font to 'clear' instead of standard, and they wouldn't notice.
    If this tube is in decline, as I suspect it is, it'll eventually be
    returned as I do have a warranty.

    Also, I failed to mention the horizontal lines. They're especially
    apparent when the background provides the proper shade. All in all, I
    doubt I'd ever purchase another Philips.
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