Blue picture tube light up at the bottom but the blue ray that shines on the screen will not light up is there a bulb in this tube or is there a problem on one of the circuit boards that,s causing this tube not to light up blue i need a response as soon as possible
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Good Day, jessayala;
It sounds like you may have Ethylene Glycol on the boards, leakage from the TV's CRT's. The Glycol is a fluid that help's the tube cool. If you are not handy, very, very handy, I would call an Authorized Service Center to come out and give you an estimate before the repair is performed.
Good Luck, big IRISH......PS..... If can handle your self ..... come back here.
this model is famous for fluid leaks. each projector tube has a
reservoir on the front of it with a fluid in it. this keeps the face of
the tube cool. this depends on how bad the damage is in the tv. in most cases we can
reseal the tube and clean up the fluid 400-600. Once you take the tube out you will see where it leaked. The problem is that the frame on the CRT that the heavy screws with springs are mounted on (that hold the lens coupled to the CRT) is weak and they can bend. We have seen several that have leaked after the customer moved the set. You can only tighten them down so much because the frame bends. It is just stamped metal and not welded at the corners to support the bend.
We remove the CRT, clean it all up, add a very small amount of RTV sealer to the gasket, reassemble, let the RTV cure thoroughly and refill with coolant. The extra sealer should prevent future leaks. Haven't had a recall yet. Mits says replace the CRT...too costly.
You msut check the yokes carefully as well. If any coolant gets into them you can end up with shorts there and a mess.
Clean the boards carefully and repair any corrosion damage. The coolant is ethylene glycol and glycerine which is water soluable.