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The screen on my Samsung dnie model ppm42m6sb just flashes and has a dark spot in upper right corner

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Fault in the main power supply regulator board. Check and replace damaged component/s at its main power regulator [SMPS] section circuit. Contact any service technician. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts.
http://electronicshelponline.blogspot.com/
It will be best to replace the power supply regulator board as card basis rather than making "Surgery" to it; which usually will make loss for both money and time. Even though you can make it right, it will cost around an amount equal to the cost of a new board; including the cost of (spare parts + service charge) More to say, most of the spare parts to it will be difficult to get from open electronic spare part market. This is true to most of the flat panel TV power supply boards; irrespective of its brand and screen size.

Posted on Apr 25, 2015

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Posted on Jan 02, 2017

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SOURCE: Olevia 540-B11

damm i have the same issue except the left side of the screen is far darker than the right. It still works but is very noticable. If you get this resolved please reply back!

Posted on Sep 06, 2008

  • 2 Answers

SOURCE: number 2 is in upper right corner; cannot remove

Had the same problems. Rebooted the box and the 2 was gone. Hope this works.

Posted on Jan 09, 2009

  • 1 Answer

SOURCE: Number 2 in upper right hand corner of screen

Had this problem also when I rebooted my Time Warner Cable box. Unplug everything from the wall including power strip and wait 60 seconds then plug back in and turn everything back on. Worked for me and havent had a problem since. Time Warner does not know what causes this yet.

Posted on Feb 01, 2009

dave1645
  • 834 Answers

SOURCE: Screen has black spot in corner that spreads to entire screen

one of the floresant bulbs has fail there is a place in Haverhill Ma called Tops Electronics that can fix you up really quick but you will have to ship it to them they do good work there
their new name is pinnacle solutions group over 30 year serviceing

Posted on Sep 18, 2009

  • 51 Answers

SOURCE: My screen has dark spots in the upper corners that

Could be Optical Unit (Probably)

Posted on Dec 03, 2009

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If by saying the upper right corner of the lens you really mean that there is a dark spot on each image AND the rear display, there may be dirt or dust on the lens itself. Clean the lens with an optical quality cleaner. Do not use paper towels and Windex or the like - as paper towels can scratch the lens.

It is also possible that the dark spot is a "stuck pixel" on the image sensor inside the camera. There is no way to repair a stuck pixel outside of replacing the sensor. Any dark spot (regardless of source) can be edited out by using image editing software. This will allow you to to make the dark spot less noticeable - or practically invisible.

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Screen has black spot in corner that spreads to entire screen


one of the floresant bulbs has fail there is a place in Haverhill Ma called Tops Electronics that can fix you up really quick but you will have to ship it to them they do good work there
their new name is pinnacle solutions group over 30 year serviceing

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