Question about Sony BRAVIA KDL-40S2000 40 in. LCD HDTV

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Electrical discharge I have a Sony Bravia KLV 40D300A which appears to have static buildup or some other electrical discharge resulting in a loud bang and a momentary distortion of the picture several times each evening.

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6 Suggested Answers

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Posted on Jan 02, 2017

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SOURCE: Sony Bravia KLV-40U100M-screen is distorted, overlay or various vertical lines

The resolution on this was to check the surge protector the television was plugged into. Once we unplugged and plugged into another surge protector, the screen went back to normal and the appearance was great. We believe this was due to one of the resistors within the surge protector may have become faulty.




Posted on Oct 08, 2008

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  • 289 Answers

SOURCE: My Sony Bravia KLV-32U300A 32 in. HDTV-Ready LCD

hi..It's probably a loose cable. The first one to check is the
green connection but make sure they're all tight. RCA cables
tend to pop out part way which is enough to stop the signal.
If the green signal is lost, you get no picture. If the red or blue
are lost, you get a picture with bad coloring.

If you still have the problem check this
LOOK in the back of the TV when you have it turned on. Look in the slots near the top for a white glow coming out of it.

IF you see it, you need your signal board replaced...

IF NOT, then you need your power supply board replaced...

Posted on Apr 19, 2009

  • 27 Answers

SOURCE: bravia hdtv lcd momentary dim

It sounds like the power supply may be going. The back lights on a flat screen works the same as a flourescent light fixture. Flourescent lights have a ballast that powers on the bulbs. Flat screen tv's have capacitors on the power supply that when they charge power on the back lights of the tv. When you see the tv go dim it is actually the back lights that are dimming. This is usually from a faulty capacitor on the power supply not charging to its full potential. If you can open the tv and find the power supply look for any capacitors that are bugling at the top. These are most likely the culprits. A good cap tester is always handy to have although they are expensive ($100) it usually isn't cost effective to have it around just for rare occassions like this. You can remove the caps and take them to Radio Shack and they should be more than glad to test them for you. Before you do any of this though, look in your owners manual and see if there is a setting to where the tv does not use as much power. Maybe something like that is happening. The age of your tv can determine this too. If your tv is a few years old or burned for 20,000 to 50,000 hours the caps could very well be bad. Hope this helps. Good luck.

Posted on Mar 08, 2010

leusnerdus
  • 54 Answers

SOURCE: looking for a sony bravia klv-46x350a lcd spare

Usually the LCD panel cost is around 80% of total TV price. Look for it in a center of service.

Posted on Apr 20, 2010

techman007
  • 1112 Answers

SOURCE: The picture on the screen

HI:
This is due to a faulty digital board, your board has failed replacement is the only option.

Posted on Jan 24, 2011

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Four times blinks indicates an over voltage problem. If the DC voltage that comes out from its main power regulator board is abnormal. [high / low] this kind of fault can occur. If you wish to get more details about the blinking codes to Sony KLV 32S200A,check the site linked here. Blinking codes details to this TV is given in detail.
Products powered by electricity should be serviced or repaired only by experienced professional technicians. Any attempt to service or repair the product by anyone else could result in serious injury or death. If you are not familiar with electronics, do not attempt to repair. Whether you suffer fatal electrical shock. Instead, contact the nearest service center.

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It appears your looking for a power supply. Only place I could locate one was on ebay here http://cgi.ebay.com/1-789-496-11-New-Sony-Power-Supply-Board-KLV-40U100-/270664532068?pt=LH_DefaultDomain_0&hash=item3f04dd0064

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The resolution on this was to check the surge protector the television was plugged into. Once we unplugged and plugged into another surge protector, the screen went back to normal and the appearance was great. We believe this was due to one of the resistors within the surge protector may have become faulty.




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