Question about Toshiba 50HPX95 50 in. Plasma HDTV

6 Answers

TV shuts down with Red Light blinking

My TV keeps shutting down and the red light in front keeps blinking with no sequence.
SOmedays it works fine and somedays it keeps doing this.

Please can anybody help in guiding me what could be wrong. I cant get the tv to turn on, the power light is blinking red, the owners book and toshiba have no clue what it is..I get sound but no picture...and it worked fine the night before!

J

Posted by on

  • 7 more comments 
  • brattbabie1 Aug 09, 2008

    the tv was turned off after only 3 hours of use, adn i have had it on for much longer than that in the past....so i dont feel it was a overheating issue...but thank you for the thought

  • brattbabie1 Aug 09, 2008

    the power supply is screwed directly into the wall so my cats and dogs wont knocked it out of the plug....but i did unscrew it and re screw it in, just in case....still not working though

  • brattbabie1 Aug 09, 2008

    i dont see any bulging.....

  • brattbabie1 Aug 09, 2008

    the picture quality is fantastic! well was fantastic when i had a picture...no graining or hazig or blurring, great picture!

  • brattbabie1 Aug 09, 2008

    i thought the picture tube starts to show some deterioration before it goes out?

  • brattbabie1 Aug 09, 2008

    does anyone else out there have any other suggestions?

  • brattbabie1 Aug 09, 2008

    i just unplugged it for 30 mins...the red light is still blinking.....its just so weird, thursday night it was fine, no issues, i turned it off just like normal. friday i had my floors cleaned adn now this....the tv is wall mounted, the plug is screwed in to the wall and i know my av rack was not moved when the floors were cleaned because there is still dust on my stuff...the floor person knows not to go near my entertainment rack....so im totally baffled!

  • brattbabie1 Aug 09, 2008

    so what I am gathering is that I am pretty much stuck...I need to have a tech come out and open it up....

  • brattbabie1 Aug 15, 2008

    thank you everyone for the advice, but it turns out---so far from what the repair tech said-its the SEIN board? we shall see when the part gets here Tuesday...

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6 Answers

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  • Master
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The most common cause of this is bad convergence ICs. These are large black ICs attached to a heatsink. They should be marked STKxxx.

if your comfortable, Try resoldering the pins on these first. if not they will need to be replaced and found pretty easy on ebay and electronic stores.

Posted on Aug 10, 2008

  • Wesley Gardner
    Wesley Gardner Aug 10, 2008

    im gonna have to go with ginko on this, sorry mate didnt read your post before posting.

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Ok, what about picture tube quality..
is it good or seems abnormal sometimes..
blinking light means that system has detected some fault.
it can cause by some drysoldering in the board.

regards,

Posted on Aug 09, 2008

  • 4 more comments 
  • SALMAN NASEER Aug 09, 2008

    can u hear any sound in flyback at the time of running or when it shuts down.









  • SALMAN NASEER Aug 09, 2008

    sometimes the problem causes by the flyback, b'coz it has to do alot and special work there,



    regards,

  • SALMAN NASEER Aug 09, 2008

    what about the condition of main filteration capacitor...

    the jumpo capacitor at the main..

    what about its physical condition..

    does it look normal or spreaded at the top end..

    another condition is caused by dropage of voltage too..



    regards,

  • SALMAN NASEER Aug 09, 2008

    deterioration, in sense of what.. do u mena that picture tube fickers a little bit with some different type of color or something..





    regards,

  • SALMAN NASEER Aug 15, 2008

    dear,

    one more thing to share is, have you do the inside cleaning/dedust of your set. with blower..

    if not and u feel dust on it then u have to clean it ..

    i think do it even u dont feel much dust.

    its better....



    regards,

  • SALMAN NASEER Aug 15, 2008

    dear,

    sometimes as i observed the tv or any electronic having these kind of criticality has to dedust...

    as all these comments u had got alot of ideas that u can share to theh technician so he may not charged alot.



    regards,

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  • Toshiba Master
  • 19,396 Answers

The tv has an internal safety switch that turn tv off when there is a short, overheating or overvoltage. This is often caused by a bad capacitor, bad cold joint or faulty IC.
Try first unplugging tv from power cable for 15 minutes or so, so to reset it, sometimes this fix the problem.
If this did not work, to find the cause of the problem you need to have a technician testing components inside tv.
You find the phone number for repair service printed on last pages of tv owner manual, also check your guaranty terms.

Posted on Aug 09, 2008

  • 1 more comment 
  • Ginko
    Ginko Aug 09, 2008

    Well it is not necessarily the power supply, if TV is not returning any error code is useless trying to guess, part and components need testing when it is like this.

  • Ginko
    Ginko Aug 09, 2008

    The tv has an internal safety switch that turn tv off when there is a
    short, overheating or overvoltage. This is often caused by a bad
    capacitor, bad cold joint or faulty IC.
    Try first unplugging tv from power cable for 15 minutes or so, so to reset it, sometimes this fix the problem.
    If this did not work, to find the cause of the problem you need to have a technician testing components inside tv.
    You find the phone number for repair service printed on last pages of tv owner manual, also check your guaranty terms.
    if TV is not returning any error code is useless trying to guess, part and components need testing when it is like this.




  • Ginko
    Ginko Aug 09, 2008

    Well you need somebody using a multimeter on a tv board, your tv is not returning any specific error code, therefore only way out is having a technician with his hands on your tv.

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The problem is with the loose connection in powersupply which sometimes supports so it works the power supply is towards its end so get it repaired quicly to save heavy loss.

Posted on Aug 09, 2008

  • 1 more comment 
  • tech expert12 Aug 09, 2008

    check whether any capacitors in the power supply bulged up, if yes than replace them with new one.

  • tech expert12 Aug 10, 2008

    do u require any tv repair sites links.

  • tech expert12 Aug 14, 2008

    Did the solutions from all of us experts solved your problem if not then let us know the current updates so all the fixya experts can assist you further.

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  • 623 Answers

Your picture tube needs replacement...

Posted on Aug 09, 2008

  • ritchie dempacco
    ritchie dempacco Aug 09, 2008

    or call 411 and 1800-555-1212 directoy assistance to locate nearest toshiba lab

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It must be your tv was heated on long usage.
sir, try to go to your nearest expert technician. they have tools to use on fixing your tv's hardware. or see if your tv has a warranty to send it back to the place what youve bought it. hope that helps!

CHARCOIS

Posted on Aug 09, 2008

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