Question about Toshiba 50H71 50" Rear Projection Television

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TV KEEPS SHUTTING OFF

My toshiba 50H71 tv keeps shutting off and comming back on every ten minutes or so .took it in for repair but no one can find anything wrong with it .when i took it home it started to do the same.shut off and come right back on.

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  • Anonymous Jun 21, 2008

    toshiba high def large tv after turning it on he tv shuts off and on green ligh and red light flass on and off

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  • Toshiba Master
  • 8,617 Answers

It may be solder related, but it may be something such as aleaky diode causing secondary voltages to increase thereby shutting down your set for protective measures. I would recomend getting a service manual and some free support to help you diagnose this. You can get both at the following link.
http://servicemanuals.vstore.ca/

Posted on Mar 19, 2008

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Posted on Jan 02, 2017

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the convergence ICs have shorted and thats whats shutting down the set. Its an easy repair you have to replace both the Convergence ICs they are STK392-110 ICs you can get replacements at the following link and they provide free instalation instructions with pictures and also free tech support. Heres the link.
http://servicemanuals.vstore.ca/

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You need to replace both of the convergence ICs they are number STK392-110 you can get new replacement ICs at the following link and they provide free instalation instructions so you can do the repair yourself which tkes about 30 minutes to do and saves you about 400 dollars. heres the link.
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Tvtek is on the right track. The remote will not solve the problem. Sounds like a voltage regulator in HV circuit if it only lasts a few seconds. If it stays on for a couple of minutes, beam limiter cicuit is pushing to overload and shutting unit down. Magnavox set not hard to repair, but a 27" set is not cost effective to repair either.

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