Question about Mitsubishi VS-5043 50" Rear Projection Television

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What is the chemical in a rear projection tv

I have a kp57hw40 sony rear projection tv. it looks like someone played with the back of it and it leaked some kind of chemical. what is it and how do i refile the light so that the tv works?

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  • djjackson23 Jul 27, 2009

    is the tv no good now. the tv turns on then turns off by itself then the stand by light blinks four times over and over. do you know what i could do to fix this?

  • djjackson23 Jul 29, 2009

    you helped me with the kp57hw40 coolant. thank you very much for the help. I have another problem though i fixed that problem and had it running last night the picture is off though. the picture starts about 6" above the bottom of the screen and its still has a little color setting i have to do but when i was playing with it my blue light flickered a little and shut off now it wont turn on. I dont have money to buy a new one or have it repaired what do you think i could do to fix it? thank you so much!
    you can email me at but i will keep checking this for your answer thanks again.

  • djjackson23 Jul 29, 2009

    well i tried to change that but that was a no go i got it to work for about 30 min but i couldn't figure out how to get the bottom of the screen to move down to fit the screen and then it shut off again and gave me 7 blinks. do you think there is anyway to fix this without buying any parts? if you think of anything could you talk me through what i am doing. thanks



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The CRTs contain coolant which is most likely what leaked as thats the only liguid inside the television.

Posted on Jul 27, 2009

  • Sonny Berry
    Sonny Berry Jul 27, 2009

    the 4 blink error is for vertical failure. Which means the coolant may have dripped onto the A Board ( Green board on the right side looking in the rear) near IC8003 which is the vertical. The recomended repair id to thoroughly clean the area wherever the coolant leaked, then let dry. I use denatured alcohol first then a warm damp cloth, then I also resolder all components that were affected by the coolant as the coolant will destroy the solder. If the spill was there long enough you may need to replace the A board. If I can assist you further please let me know.

  • Sonny Berry
    Sonny Berry Jul 29, 2009

    If you were adjusting the Blue drive control it may just be turned down to low to light the tube. Try turning up the blue drive control (screen) just a little the tube should then light again.



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