Hi, Guest
06-11-2014, 09:49 PM
Well... yes the chips will get very hot without the heat sink. I've had one of mine on for a few minutes without the covers. I wouldn't leave it on for more than a few minutes without it.
Maybe someone out there can address this better than I. I haven't had to play with them too much.
They are getting old now so certainly common problems are going to surface.
Again, I'm a bit fuzzy on everything that happens to the video, besides the ram chips.
It seems there was issues with the video processor, and possibly the xtal drifting a bit.
Again maybe some other people on here who have been working on these over the years can jump in.
I think there is a coil in the circuit, on the second one you might want to rock and see if it effects the pix.
Why not swap the video chips and check the result?
If the first machine's video processor proves to be good you may have to install sockets and swap the ram. Since what you describe could be one or more failed memory chips.
Maybe someone out there can address this better than I. I haven't had to play with them too much.
They are getting old now so certainly common problems are going to surface.
Again, I'm a bit fuzzy on everything that happens to the video, besides the ram chips.
It seems there was issues with the video processor, and possibly the xtal drifting a bit.
Again maybe some other people on here who have been working on these over the years can jump in.
I think there is a coil in the circuit, on the second one you might want to rock and see if it effects the pix.
Why not swap the video chips and check the result?
If the first machine's video processor proves to be good you may have to install sockets and swap the ram. Since what you describe could be one or more failed memory chips.