bungy
Well-known member
I have a spare 4900 with an unacceptable amount of burn and I wanted to extend its life in case I need it. I had been studying raster tube swaps and other posts of the monitor gurus for a few months now and felt pretty confident I could handle it.
Near where I work, there is a dropoff container (truck size) for recycling bulky electronics. I always check it out for junk computers, but I have been bringing 19" TVs home in preparation. The first one I got was a Sylvania with the correct deflection angle, but the wrong neck pinout ("I told you we should have got a Zenith!"). Next up was a Zenith with the correct deflection angle and pinout - the model number was Z19A02G. The connectors for the yoke & degauss coil on the donor were the same, so I brought them with the tube and installed it.
Connected it up to a Tron and the picture came up, but it was inverted and squished and blurry. I knew enough to swap some yoke wires to fix the inversion, but I could not expand the picture enough to fill the screen. Some more research and I decided to swap the yoke & purity rings. This was the part that scared me the most, but it was easy as pie. While I was at it, I moved the original degauss coil back.
Turned it on, and the picture was beautiful. Still needs to be manually degaussed / adjusted, but that's easy, too. I've read a lot that says to keep the yoke with it's tube and I don't know if I was just lucky, but they seem pretty easy to swap.
I think I'm going to put this in my Satan's Hollow as Satan has some bad burn (Ha!) and swap another tube into that one.
If you have a monitor with bad burn, I say go for it! 19" TVs are practically free these days and there is more than enough info here to help you along.
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Near where I work, there is a dropoff container (truck size) for recycling bulky electronics. I always check it out for junk computers, but I have been bringing 19" TVs home in preparation. The first one I got was a Sylvania with the correct deflection angle, but the wrong neck pinout ("I told you we should have got a Zenith!"). Next up was a Zenith with the correct deflection angle and pinout - the model number was Z19A02G. The connectors for the yoke & degauss coil on the donor were the same, so I brought them with the tube and installed it.
Connected it up to a Tron and the picture came up, but it was inverted and squished and blurry. I knew enough to swap some yoke wires to fix the inversion, but I could not expand the picture enough to fill the screen. Some more research and I decided to swap the yoke & purity rings. This was the part that scared me the most, but it was easy as pie. While I was at it, I moved the original degauss coil back.
Turned it on, and the picture was beautiful. Still needs to be manually degaussed / adjusted, but that's easy, too. I've read a lot that says to keep the yoke with it's tube and I don't know if I was just lucky, but they seem pretty easy to swap.
I think I'm going to put this in my Satan's Hollow as Satan has some bad burn (Ha!) and swap another tube into that one.
If you have a monitor with bad burn, I say go for it! 19" TVs are practically free these days and there is more than enough info here to help you along.
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