grrlmechanic
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Mar 26, 2009, 4:22 AM
Post #132 of 174
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My story.. About a year and a half ago, I saw a Philips philips 9P6034 proj TV on the curb about a half a mile away from my house.. I do a lot of mixed media technology art, and figured if it didn't work, well, maybe I'd tear it apart and do something funky with the trapezoidal mirror inside.
Being pretty certain the TV was meant to be trash (you're supposed to take them to the dump yourself and pay big bucks) I rolled the TV down the street (which pretty much wore the casters down to nothing).
After an altercation with first a guy with a pickup truck who thought he had dibs on it (and nearly ran me over he was so pissed) and then a cop (who had seen the TV there and figured out pretty quickly that I was doing a civic service by cleaning off the sidewalks!), I got it home, and lo and behold, it worked!
Well, sort of. The picture was cloudy, and I soon found that there was horrible bacteria in the blue and green guns (red was fine)
What I didn't find at the time was this forum, and at the time I didn't know anything about CRT coolant or any of that stuff. So I start ripping it apart (I figured there was a place where I could clean it off) and I remove some of the 4 screws that hold the lens over the blue gun. And then gloosh!
Then I found this forum and read up and realized that maybe I should do a little research next time (I know well enough to keep away from the high-violatge stuff like the backs of CRTs and flyback transformer-type looking things)
Anyway, as you guess I got a bit of coolant on the boards. I cleaned it up the best I could. Since it was a free set, and the coolant could cost about $20 for 2 bottles, I might as well dive in and entirely remove both logic boards to clean them (little to lose). They were all connected to each other with ribbon cables that are nicely numbered, so with the exception of a couple of mystery black ground wires that I'm not sure where they go(with female blade connectors), I think I'm ok.
I didn't really keep track of what went where, but all the other connections are numbered, so i figure it will all make sense when I put it together (not the recommended way of doing it I imagine)
So, I cleaned up both logic boards top to bottom with the highest concentration of rubbing alcohol I could get. Then I blow dried them until they were pretty clean and dry, though there are a few places where I can't see under a capacitor or something, so I can't tell if it's all gone or not.
In any event, since I had to change some of the casters on the bottom, I removed the entire mirror/sceen top half of the set, and it's way more portable.. Since then I've let it all sit in the garage for a year and a half, and I've decided to finally tackle the rest.
So, my questions are:
Where are the drains for the chambers? Are they those plastic hex headed (but have a round hole in the center) that someone circled red in their pictures? I don't' see anything that looks like an expansion chamber though. Also, there are these thumb screws that seem to adjust the lenses which I don't want to mess with.
Now that I have the boards totally out, and the top half of the set off, I don't think I will have any problem tipping everything so that I can get the drain plug to be on top and turkey baste all the go out and go from there (which I assume is remove the lenses and then clean out the rest of the coolant per the pdf instrufctions, then reassemble and refill)
Also, would the spilled coolant ever evaporate? Can I be reasonably sure that after a year and a half since I cleaned the boards that they will be dry of any trace of the stuff?
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Great guide made the job so easy. Dont get scammed, use clear baby oil in your CRT's works great costs nothing and the job is dead easy. It takes longer to pull the back of your TV than it does to change the coolant in the CRT. Dont pay $100 bucks 
for the "COOLANT" you are getting ripped off 
