Question about Philips Magnavox 9P6034C 60" Rear Projection Television
Hey guys... I'd appreciate some insight if you could...
I started with the problem of needing a coolant fluid change... so I tried changing the coolant inside the TV... ended up dropping spilling some drops of old coolant on the board with my first attempt at the blue CRT. So, I stopped what I was doing, and removed the crt assemblies from TV and took out the board and went through a thorough and careful cleaning up of the fluid.
With the CRTs out of the TV, I cleaned the other lenses and changed fluids of the Green and Red CRTs.
So... I put it back together and with minor adjustments, I had the prettiest picture I've seen from the thing since I brought it home in 2000... I watched it for a couple hours before declaring victory and hitting bed.
Well, that didn't last long, apparantly after about 45 of viewing the next morning, the convergence went haywire. All 3 colors went nutty and none were on the same convergence... and after a couple minutes, I was left with wiggly convergence lines and no picture what-so-ever.
So... I thought maybe I missed some spilt fluid and went to work in re-disassembling the thing. I didn't see any evidence of residue anywhere, and even used some compressed air to make sure nothing was hiding.
I put it back together and found that I once again had a picture... but the red convergence was severely pulsing. The Blue and Green lined up fine. I used the convergence menu to get the Red as close as I could... but couldn't get it right. I noticed that the Red would be more tame when I toned down the Red intensity adjustment, but the first colorful picture that showed up on the TV would scramble the whole screen.
If I turn up the Red intensity adjustment... not maxed or even halfway... it hums (which is a reassuring sound) and affects the other two colors by causing them to severely flicker and sometimes shut off entirely.
I went into the factory adjustment screen in hopes to fix the convergence, and got things just about perfect... but as soon as I started watching something on the screen, the Red would again flare.
For now, I have the Red intensity adjustment turned all the way down... and am living with a mostly Blue and Green screen (the red still shows a bit)... which still looks better than the picture I had before I tried changing the fluid... I've also toned down the TV's color, brightness, and picture settings because when a screen of intense red or orange comes on, the tv tends to scramble...
Another thing that I tried was swapping the convergence connections for the Red and Blue... by hooking the Blue CRT to the red controls, I was able to easily converge the Blue and the Green in the factory screen... but the Blue control wasn't able to fix any of the pulsing of the Red CRT
So, any ideas?
Sorry about the book... but I figured more information would be better than less...thanks!
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Posted on Jan 02, 2017
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