Question about Toshiba TZ55V61 55" Rear Projection Television

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Toshiba auto shut off

Toshiba TZ55V61 just keeps shutting itself off and the power light keeps blinking like it is in a standby mode. I can't turn the tv back on without unplugging the power cord. it started turning itself off about six months ago and it was very random, and about once every couple weeks. u would be watching tv for a couple hours and all the sudden it would turn off and u would have to reset it by unplugging. and over time it began doing it more frequently and after shorter use. by now it wont stay on for more than a minute and sometimes unplugging it and plugging it back it dosent even do the trick. sometimes it shuts down immediately after plugging it before it even powers up. if anybody could help it would be greatly appreciated. i dont have the money right now to replace and it has been a great tv and still has a great picture and i'd like to fix myself if possible. any advice?

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