Question about Televison & Video
The main power supply regulator section circuit fault. Short circuited component/s at it. Either it will be a separate board, or the part of main 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. 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 Dec 25, 2016
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Posted on Jan 02, 2017
You have short circuits, need to check the bridge rectifier, MOSFET that drives the AC to DC converter, etc. You will have to do component level repair at this point, better off getting new power supply module. I did not anything on the web yet using your model number (correct number?) you provided. Try EBAY and www.shopjimmy.com
Please see my basic troubleshooting guide here:
Posted on Jun 26, 2010
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