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I have a Samsung LCD TV - Model number LE37B679, which is great, but I'm having and issue with it. I can be watching ok for a while and then the picture goes & I'm left with a black screen. The sound remains. I find I have to turn the power off for 30 minutes or so then I get the picture back. Does anyone have any idea as to what might be wrong. I read something about a T-CON Video board issue, but I'm not technically expert enough to know if this is a red herring or not. Please help if you can. Regards

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Posted on Jan 02, 2017

  • 2 Answers

SOURCE: goodmans flat screen TV.Blank screen

If it is a LCD TV, and there is a faint picture, it is probably the backlight or inverter board (probably the latter). This is a common problem (especially with PC monitors).
Do an internet search for your model and inverter, you may be able to replace it.
Make SURE you REMOVE the power lead before opening the set !!!!

Posted on Mar 03, 2008

  • 191 Answers

SOURCE: sound no picture, which component is tcon board? where all audio/video/cable/hdmi plug in to?

for bn94-00963b go and change your backlight inverter

Posted on Oct 05, 2008

  • 11 Answers

SOURCE: Samsung LN-S4041DX 40 in LCD TV

Hi. You can try to go into service mode and reset the LCDTV to Factory Default. This will clear out all buffer over run's and any software related issues. It may fix the problem or it may not. If this doesnt fix the problem than you need to have a qualified Technician to look at it. The problem is in the AV circuit board, a technician who is qualified to repair electronics at circuit board level should be able to repair this problem rather quickly and inexpensively. Most technicians who do not have the expertise in repairing cicuit boards to component level would rather replace the whole AV board than repair it and this will be rather expensive.So talk to the repair shop before you drop the TV off.

Be very careful when accessing service mode. I suggest to write down all information in all areas before proceeding to a factory reset. If you do not record all values correclty you run the chance of not being able to use the TV again. To go into Factory Service mode, use the original remote and in this sequence push POWER OFF-MUTE-1-8-2-Power ON, the set will turn on and enter service mode, if you hit all previous keys correctly. If it doesnt try again. When you are done hit POWER OFF and this will exit service mode and save the data.

Posted on Jan 28, 2009

romsky79
  • 822 Answers

SOURCE: screen goes dark after few minutes

check your LCD inverter maybe there is loss connection or some parts damage from inverter.

Posted on May 05, 2009

  • 19 Answers

SOURCE: Picture great then goes black

has to do with the main board like the other guy said go to www.shopjimmy.com way cheap and its that one cuz was told to me by the manufacturer you call tv repair man they give you all this **** it can be the power supply or the main board bring it so we can tell you just to get the money for checking it out go to this site get it but be real careful with the screen you can do it your self i did mines aint no science.

Posted on Apr 17, 2010

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