MaierTV
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Jul 23, 2004, 3:53 PM
Post #6 of 8
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Try MCM www.mcminone.com the coolant part # 20-2041 buy at least two they also have a pump #22-2780 that makes a coolant change real easy. Now for how to do this if youre mechnicaly inclinde it appers to be real easy, first try tipping the set so the white expantion chambers are pointed up this will keep the old coolant from gettin all over the board below, second cover the curcuit board with towels to prevent the above problem. remove the expantion chamber and pump out the old crap. youll notice that the blue crt on some models is reversed, just tilt that sucker the other way.
once all the goo is out we usaly have to remove the lens and the top of the CRT to clean out all the Goo. then wipe out the inside with alchol and wet the seal with a touch of vasaline and reasemble the lenses. Do this one at a time so you dont go swapin parts from one crt to the other, Fill the CRT, reinstall the chamber and set the set back upright, check for leaks ( remember you havent taken the towels out yet or pluged this set in ) clean all and we do mean all spilled coolant off every thing, when this stuff warms up it becomes more fluid and will leak down destoying that $300.00 dollor board under it. Then as another good idea is to make sure your towles or whatever you got stuffed in there are nonconductive or wont short someting out ( this is why you dont use tin foil ) and the set has some room to breath, fire that bugger up and let it run till warm about 15 to 20 minuts all the while checking for leaks. if it passes that test reasemble the set and re converge the colors and it should look a lot better
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I have a Magnavox rear project tv PTV735. Service guy said the fluid in the blue needs to be replaced for about $300. How do I do this myself? Where can I get the fluid?