Re: Need to replace the glycol oil (coolant) in our rear...
Here is a step by step on how to change the tv coolant. I found a some help at the following web site forum http://www.tv-forums.com/forum/TV_Equipment_C4/Projection_TV_Forum_F24/Changing_CRT_Coolant_P15302/
I ordered the coolant from mcmelectromics.com
Projection TV Coolant - Techspray - 1915-16SQ
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The CRT coolant change is all mechanical which involves removing the crt and disassembling the coolant chamber so it can be cleaned then reassembled and filled with coolant the phillips CRT coolant kit from www.tvrepairworld.com has the coolant and the instructions for the repair on cd
Your fluid, known as Ethylene Glycol needs replaced in the picture tubes. Normally just the green and blue need done. This is what keeps the face of the tubes cool and after time just like your anti freeze in your car it breaks down and needs replaced. It turns what we call "beer brown". At Philips, we were charging $279.00 to do this. Today, places are charging anywhere from 200-300.
Sounds like some of the coolant has been lost. Refill with the same glycol based coolant as original.
see here: http://www.google.com/url?q=http://www.mcmelectronics.com/browse/CRT%2520Coolant/3830007&ei=VktsSr2wGcKFtgfvqYWbAQ&sa=X&oi=spellmeleon_result&resnum=2&ct=result&usg=AFQjCNHIbkkEwW3p8jUKnwgc30LApH-Xww
the coming out is glycol oil (coolant). If still under warranty or if you have no electronic repair experience
you should take the set back to the shop or to a repair person. Some of
the solutions described below can be dangerous, TV's are very hazardous
to service. Even when plugged out, TV's can store very high voltages.
Looks like a picture tube problem. Try to reduce the contrast, maybe it will be better.
Look into the three tubes while the TV is running, and observe the picture
quality of the three. If the red and green are crisper and clearer, and
the blue's all hazy from bacteria growing in the coolant, then the
fluid needs to be replaced. The CRTs of the colors that seem hazy need
to be removed from the light box to be serviced. The coolant needs to be drained, the CRT assemblies disassembled and totally scrubbed clean and refilled, then reinstalled and converged. If the coolant is clear, it can be a weak CRT.
Also the convergence STK ships might need to be replaced, and the soldering checked.
It is called Ethylene Glycol (PTV Coolant is what you ask for) . I don't believe radio shack has it, you can try, however, all Electronics Parts Suppliers will have it. If your going to do all three tubes then get 3 - 16oz bottles.
we just bought a 55 inch phillips magnavox and told it was working fine when we got it home and turned it on it was a red screen and was really foggy. we looked up some tv repair places and ONLY 1 told us it was the picture tube and to look down them with a flashlight for bacteria! sure enough the green and blue had it. so we found one place that would sell us the coolant fluid that you have to change the others could get it in or wanted us to bring the tv to them. we did it our selves the stuff was $17.00 a bottle or if we took it in it would be about $375.00. we have a great picture now and it wasn't as hard as all the other repair places said.
you need to change the coolant in the CRTs. Thats a common problem with the blue and green CRT in phillips magnavox rear projectionsIt makes the color and clarity as good as new after the coolant has been changed. If you need more info let me know, as there is a kit that has the coolant for all 3 tubes and CD with the step by step instructions with pictures available.
Sounds like you need Coolant fluid change, this is the fluid under the Lenses. If you have not done this before I suggest that you get some one who is qualified. Because if the coolant leaks and get to the circuit board, there goes your tv. You need new fluid in the 3 CRT's. If you look down with the back off and looking in the lense, you would see contamination in the fluid, this needs to be taken out and cleaned and replaced with new fluid. The fluid can come from places like MCM electronics corp.