Question about Toshiba 40H80 40" Rear Projection Television

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TOSHIBA 40H80 projection TV - no sound / no picture

I've a Dec. 2000 build Toshiba 40H80 - no picture / no sound. Power indicator lamp comes on - doesn't blink - can hear speakers 'bump' when set is turned on. Worked perfectly yesterday. Is this also a convergence board problem ?

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Re: TOSHIBA 40H80 projection TV - no sound / no picture

It could be, that would be the first thing i would do to rule out I would first check for loose connections on the board.

Posted on Dec 06, 2007

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Toshiba 40h80 red light blinking

I would suspect the problem is in the convergence circuit---only one simple way to know---get at and un-solder all 18 pins on both the STK chips it uses.

Once they are free try to turn set on--if it comes on one of the chips is bad and both will have to be replaced.

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The tv "LAMP" LED light indication flashes or stay on.Ur tv the projection lamp life are over.Ur tv require a new projection lamp.

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The only thing you can do is to unplug the tv for 30 min. Then turn it back on and see if that fixed it. If not call a repair man, you are most likely missing a power supply voltage or deflection voltage.

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you didnt say if the set was working?? if its not I would first try the power regulator IC in the power supply It will start with an STR#####.. This goes bad alot in these sets. Good luck

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