Question about Sony KP-46WT500 46" Rear Projection HDTV-Ready Television

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HELP, Please! My Sony KP-46WT500 (6-year old) suddenly just flashed a few bright lights and turned itself off. After I turned it on for a few minutes it would die again. Does anyone know what could be the problem or solution to this?

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  • AlaVOL Oct 02, 2008

    At start up the picture will look almost normal except with a more red tone, then the picture will dim to light red while flashing and finally turn off.

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Pict tube probably shorted and damaged tda 6120 video drive ic also 4.7 resistor on blue crt drive board now open .

Posted on Sep 03, 2008

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My TV began with a flash of white light then will turn itself off. It won't turn off every time the screen flashes. It started a month ago then worked trouble free until now and it began again. You can...


I hope you have a service plan for this set. Most likely--the CRT"s are going bad. This was a VERY common problem for Sony sets of this age. the CRT tubes SHOULD last a long time...BUT Sony had a BUNCH of the tubes that had 'contamination" on the cathodes of the guns...and after a few years..this 'flakes off" and shorts out the tubes. There WAS a recall on these a couple of years ago, but I am not sure about it now. You will need ALL 3 tubes to fix this problem. If it was me...I would try and find out if there is any way to get Sony to cover it..., if the set is not more than about 8years old.

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Sony KP-511HW40 fleshing with green color and shuts off


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4 Answers

Green flashes then tv turns off


or a new lamp. you could first replace the lamp.
the screen might work fine for a couple of seconds, but then it fades away or deteriorates. This means the lamp is going bad.

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1 Answer

SONY KP-57HW40


you are experiencing one or more of three things
1.the crt itself is damaged
2. the vertical ic on blue crt board is bad
3. the focus block is bad
if you hire a sony authorized technician they should be well aware of this problem.

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1 Answer

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SYMPTOMS
No power
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Found IC601, F601, and R612 on the G Board defective.

Get the manual at http://fletchersite.com/contact.php

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