Question about Polaroid 15'' HDTV Monitor FLM-1511

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Video screen will not stay on

I have to turn the power off and back on several times before the video screen will stay on. The audio continues to work each time but the screen goes black. At first it would stay on after 3 to 4 tries, Now it is taking about 30 cycles before the video will stay on. I cant take it any more. Is it worth looking for a repair location, is this a problem that other people are having. Is this just a power supply problem?

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  • stuart647 Nov 20, 2008

    O am using it as a tv so the input is still working, but just goes black. If I turn it of and then back on the picture will stay for about 5 seconds and goes black. Dont know why I have kept turning it of and back on this long, bet it has taken more times to get it to stay on. Once on it will work all day.

  • Tyler Bustinza May 11, 2010

    When you lose the picture, does your screen say "No Input Found" or something to that effect, possibly image or text that tells you that the monitor is still functional? This text only has to be on the screen for a fraction of a second to better diagnose the issue. Or is the screen completely black without any sign of ever turning on, other than the audio playing?

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I have a question does this apply to my polaroid 1511 tlxb and its doing the same thing, i opened it up exactly how you said to and i have the power suply board out and i am looking for the 1000uf 16v and i cant find it, and i dont understand about it being bulged and there are none that i can see burnt at all,, any help here would be helpful becouse i opened it all up and a regular tv guy would be upset if i carried it in in this condition, thank you

Posted on Jan 20, 2010

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Normal 0 false false false MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman"; mso-ansi-language:#0400; mso-fareast-language:#0400; mso-bidi-language:#0400;} Cause of power going off: There is a bad 1000uF, 16V cap on the power supply board.

Solution: Replace cap. Radio Shack sells a 1000uF, 35V cap for $2. This will work.

Why did the cap go bad? The cap is too close to a heat sink and over heated.

What does this cap do? This cap sends a signal to an IC which keeps the monitor 'on' after the power switch is pushed. When the cap is weak, AC ripple voltage is applied to the IC and it sends a signal to shut the monitor off.

Opening the Monitor: These monitors are difficult to open.

The two plastic pieces snap together and must be pried apart with a flat screw driver.

After removing the stand, you need to insert a flat screw driver at the bottom of the screen where two slots are located. Then work the screw driver around until the two plastic pieces are separated.

Remove the cover plate and unscrew the push button circuit board.

Unplug the monitor cords from the driver board and remove the screen.

Unscrew the mounting screws from the power supply board and remove.

You will need to pinch the plastic support in the middle of the board to remove.

Cap Replacement:

Cap is located near a copper heat sink and the value will be on the side of the cap. It will be bulged up on the top. You will see burn marks on the board surrounding the cap. Unsolder the cap.

Install the new cap and solder. Make sure you connect + of the cap to + marked on the board.

Be careful not to solder across joints.

Keep leads long so you can bend the cap as far away from the heat sink as possible.

Reassemble monitor and turn on.

This should solve the problem.

Posted on Jan 01, 2009

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SOURCE: Polaroid 15

Do you have to turn it back on with the remote after this?

If so, then you may have set a timer by accident through the menu system.

More information would be required.

Posted on Aug 04, 2009

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