Question about Toshiba 50HDX82 50" Rear Projection Television

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It only runs for 15 mins or so then the poicture and sound goes off, If I unplug it for a while it will come on and do the same. Main board I think.

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Main board it is

Posted on Jul 29, 2010

Testimonial: "thanks for the help, now how do find the board..."

  • AJbezares Jul 30, 2010

    well you will have to unscrew the tv of course. The board with all of the input connections like the hdmi/component/av. Thats the main board

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Comes on fine, good picture and sound. After about 15min. sound stays on but picture goes black


Fault to the main power supply regulator section. 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. 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.

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