Question about Mitsubishi WS-55807 TV

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Green crt been told center crt was leaking,arcing at line in so it needs to be replaced. recieved part # and runs about 250. My question is should I take the risk of putting a new crt in just to have it get arced out? or is that a common problem when the go bad? just trying to determin if i should cut my losses now or not

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  • dakota48078 Feb 09, 2008

    the set is a 2001 watch it regularly also looks like some fluid got on boards little I cleaned it up but hate to buy a new crt plug it in and have the new one shorted out what do you think is that possible

  • dakota48078 Feb 09, 2008

    watch it normally I guess not long enough for this to happen lol its about a 2001 just wondering what my chances of buying the new crt and not having something short the new one out? there was a slight amount of coolant that leaked on boards but i beleive that i cleaned it all up

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It will be worth it to replace it as long as the coolant did not leak on the board. If any fluid got on the boards there is a chance your boards will be ruined. If the tube was just shorted and arcing then it just takes replacing the tube. This also will take some major convergence to get it back watchable.

Josh

Posted on Feb 09, 2008

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How old is your set and how many hours do you put on it every month? These are questions that you'll have to weigh to decide whether to keep or replace the unit...accordianman

Posted on Feb 09, 2008

  • Michael Borelli Feb 09, 2008

    The fluid involved is non-corrosive and usually silicone-based,.Therefore, the fact that some has gotten onto the boards is a moot point, unless some other contaminant has mixed with this substance, such as spider webbbing,(very conductive) or any other such item. In other words, don't worry about the fluid that has already spilled....accordianman

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Sounds like you may have just left one of the wires loose from the red tube. Not likely an issue from the gren tube but you can always cover the top of the lens and let just green shine up. That may help narrow it down also.

Here is more detailed info for you also.....

Projection TV tubes have a liquid coolant that is used to keep them from overheating. After many years the coolant in the blue and green tubes will become cloudy and cause the screen to look dull, red/orange, etc. You may even see halos around images.

Picture of a set that needs the fluid changed.

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TV set after fluid change

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69189a5.pngSOLUTION

What you will need to do is replace the coolant and clean the crt. You can get a repair kit from TvRepairKits.com . It includes replacement coolant,step by step instructions, support, etc.

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To fix this you must use RTV or silicone and put it all around the suction cups that are on the CRT, this is usually where the voltage develops a leak and can short out various components.
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Mitsubishi ws 55807


The green Crt for your set is part number 251C207050. You said that you cleaned up where the fluid leaked but if even the slightest is left it can and will short this board. You are looking at about 200-250 for this CRT and if it leaked you would want it replaced. I couldnt find any in stock anywhere most had feb ship dates. You can get it from andrews electronics and union electronics.

Feb 06, 2008 | Mitsubishi WS-55807 TV

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