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Samsung hl-p5685w sound comes on lamp is working fans are working new color wheel and lamp installed still no picture please help

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  • Giovanni Latona
    Giovanni Latona May 23, 2011

    there are no blinking lights tv shows normal , last night the tv worked *** long as i kept the back open and a large fan running on it i checked the tv fan and is working , but today even with the fan on the tv it will only stay on for about 30seconds then the picture goes away

  • Giovanni Latona
    Giovanni Latona May 24, 2011

    no blinking lights all

  • Giovanni Latona
    Giovanni Latona May 24, 2011

    tv was working for around 3 hours last night after i pulled the back off and added a large fan for cooling but the tv fan is working fine but today tv comes on for 30 seconds and picture goes away volume is still on lamp is still on just no picture i just installed a new color wheel

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  • Master
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There's a good chance you have failing electrolytic capacitors most likely in the power section.
Any caps in this (or any) sections that look bulged at the top, or bulged/leaking at the bottom need to be replaced.
If you repeatedly turn it off and on, eventually it'll probably give a display when turned on, but every time you turn it off, the TV will get harder and harder to start up until one day it just won't.
Sometimes you have to do the opposite to start it up and unplug it for some time and then try again.

If you aren't tech savvy, don't worry, read the rest of this solution and watch the videos.

If you are handy with a soldering iron and can identify the power supply and inverter / FM section for the backlights, an inexpensive handful of capacitors will likely fix you right up.
Match the capacitance on the capacitors. Go over voltage if you can, and still have them fit.
IE - it's not a bad idea to replace a 10V cap with a 16V or 25V or even a 50V, but don't replace a 680uF cap with a 500uF or a 1000uF (unless you are positive it's only doing ripple filtering, and even then, you should go OVER, not under the uF rating).

Most of the caps that go are 10V 1000uF or 3300uF.

I found some great videos of the procedure (for many Samsungs with similar issues) on youtube.

http://www.youtube.com/watch?v=Mm51C_RDIZE
http://www.youtube.com/watch?v=BNHHrgX_6cs&feature=related
http://www.youtube.com/watch?v=8l0AUj8QUkg&NR=1&feature=fvwp
http://www.youtube.com/watch?v=Y7b_nTaZYcU&feature=related

As you can see, this issue spans plasma TVs, as well as large and small LCD TVs and monitors.
The parts are cheap, and skill required is minimal.

Posted on May 24, 2011

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  • Master
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The lamp is probably coming on just barely. There is hardly anything else in the tv that can cause this issue apart from the lamp and/or its power supply(ballast). What is the status of the LEDs infront of the tv? Which of them are blinking/lit when the tv is on and when you have sound but no picture?

Posted on May 23, 2011

  • eagle338
    eagle338 May 23, 2011

    ok. And you did not tell me whats the status of the LEDs at the front when it shuts off? Which of the 3 LEDs are blinking?

  • eagle338
    eagle338 May 24, 2011

    No no this is not a color wheel issue. 100% guarantee. Its the lamp thats reaching the end of its life. I am damn sure. Pretty sure the lamp will go out completeley and all the three lights at the front will keep blinking. It cannot be anything else

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  • Televison & ... Master
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Hello
Switch Off the set and pull out its power chord from the AC wall power socket, wait of one minute and then switch it On, and see whether it helps you.
If it does not help; reset the picture setting to factory defaults.
Resetting the Picture Settings to the Factory Defaults

Press the MENU button to

display the "Mode" menu.

Press the UP or Down button to

select "Reset", then press the

ENTER button.

The previously adjusted

picture settings will be reset

to the factory defaults.
Press the EXIT button to exit
If this also does not help you; suspect the set-top box, if used. just tune the TV with external antenna and see whether there is picture and sound with normally tuned Tv. If it is ok and there is no picture with set to p box only, make sure that either the video connection from set-top box to tv, of video out from set top box is faulty. OK

Posted on May 21, 2011

  • The Knight
    The Knight May 21, 2011

    If you do not get picture from your TV even with tuned stations, DLP chip inside it shoud be suspected.

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