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xtronics
New Member
Last Activity: 09-15-2014, 10:49 PM
Joined: 09-14-2014
Location: Lawrence KS
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  • Re: Samsung Syncmaster 245BW



    My hunch is that this one probably should be changed out on most units - the two I have that failed - one was completely open - the other had lost 30% of its capacitance. Again, I think they cut too many corners. I bet these bit them in warranty costs.

    I have 8 of these total - or I wouldn't have bothered learning how to fix them. These were the best monitors in their class when they were new - today everything is 1080I. I've was thinking of getting some 4K TV sets - 39" for $339 - the reviews are saying the power...
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  • Re: Samsung Syncmaster 245BW



    Panasonic ECW-H6184HC CAP FILM 0.18UF 630VDC RADIAL
    Digikey - P15435-ND

    Designed for high frequency and pulse applications.
    •Low loss

    Should work here - pretty good dissipation factor. There might be something better out there - didn't look that far. This is in the current path - needs to be a good cap....
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  • Re: Samsung Syncmaster 245BW

    OK - this is a bit of a different post as I'm not a hobbyist - I've actually designed some SPS(Switching Power Supplies). So I figured I would leave a few notes that might help you guys out.

    First, The problem with the 68ohm resistors probably wasn't due to the engineer - some idiot thought they were improving reliability by globing the glue on them. The problem is that the resistors power dissipation is rated in free air - not insulated with glue. This means that the advice to remove the glue from these and the other power resistors is...
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  • Re: New Members - please post your introductions here

    I'm an old fart that has designed electronics from back in the '80s - started soldering in the '60s. My background is things like digital video, SPS, and lots of analog magic as well as assembly language work for embedded micros.

    I have several Samsung 245BW and now two that don't work. Looking to figure out how to turn the powersupply on when not in the monitor..
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