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Samsung My tv set will be on for an hour and half and then it looks like an xray and begins to flicker, and then we cannot watch it anymore. We turn it off for an hour and then we turn it back on and can watch it for another hour and half. Any suggestions?? Thank you

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The problem of your projection TV ,is most in vertical section ,is need to re solder all joint of the solder its already crack or cold ,,when cold solder occured in your unit that is cause abnormality delivery of current and voltage that its the problem of your TV if this problem not remedied,it can cause burnt of spare parts due cannnot supress limit of the current passed;you better reheat the all vertical section ; horizontal section ;and to jungle IC..find a tv technician to do this job in avoiding high voltage shock,reheating job cannot cost too much..

Posted on Jun 22, 2008

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Hi,

Based on your general description, it could be:
1. loose connection or cold solder on any of the connectors and/or boards specially those related to power;
2. heat related - at some point, the heat generated inside the unit could cause a component failure or worsen a cold solder/loose connection;
3. a component is about to fail - on most Samsung projection TVs, this would be the DM board. Exhibited symptoms would be screen flickers (white flashes) and in some instances after about a minute the screen gragually turns very very bright (almost white) from the bottom of the screen to the top.

Any of the above would require familiarity with electronic circuitry and components, use of a DVM and a soldering iron as well as access to a service manual or at the very least a schematic diagram with voltage readings. Should you be uncomfortable venturing into a DIY, perhaps your best bet would be to seek the services of a qualified professional.

Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.

Good luck and kind regards.

Thank you for using FixYa.

Posted on Jun 22, 2008

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The first thing to check are the capacitors, see if the tops look bulging. They are the cylinder looking things on the board. Let me know if the tops are smooth and rounded and we can go from there to narrow down this problem. Basically a board is probably over heating and need of replacing. Please don't rate this solution until you are satisfied and reply as soon as you check the capacitors and I will get back to you as soon as I can.

Posted on Jun 22, 2008

  • Benjamin Patri
    Benjamin Patri Jun 28, 2008

    If you are satisfied with your experience here, then feel
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    more help, I would be glad to assist you, just ask.



    Thanks for your time and service and I hope you have a Great Day!




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IF this is a CRT TV you better try checking the picture tube of this one because the symptoms pointing to a bad tube already then better take it to a repair center near so it will be properly diagnose by a professional of this unit and for your safety also..

Good luck......

Posted on Jun 22, 2008

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