I broke my 600XL
Posted: Sun Oct 10, 2021 8:36 pm
Such a nuisance: I have a 600XL that worked fine. Mounted extension to 64k and U1MB, but it doesn't really matter. The modulator is also removed.
I have read that removing the C109 capacitor improves the image quality. So I took it out and it turned out that the image broke - dark screen and sometimes breaks synchro. I saw that when removing the C109 I broke my leg from the Q6 transistor. I changed the tenze.
At the moment, the painting is indeed edgy, but has no color. I changed GTIA and 4050 - no change. When I turn the potentiometer, sometimes a color appears, but the phase is shifted and the artifacts are very clearly visible.
I suppose I made some short circuit because all passive elements in the area are mounted vertically and easily tilted. I have looked through everything and I think I have removed any possible short circuits, but there is no change.
I was talking to Mr. Lothark and he suggests it is a passive component (capacitor or transistor). Well, before I start listing everything in turn around the video output, I wanted to ask the wiser than me if they have any suggestions, which could be the most likely cause of the problem?
I have read that removing the C109 capacitor improves the image quality. So I took it out and it turned out that the image broke - dark screen and sometimes breaks synchro. I saw that when removing the C109 I broke my leg from the Q6 transistor. I changed the tenze.
At the moment, the painting is indeed edgy, but has no color. I changed GTIA and 4050 - no change. When I turn the potentiometer, sometimes a color appears, but the phase is shifted and the artifacts are very clearly visible.
I suppose I made some short circuit because all passive elements in the area are mounted vertically and easily tilted. I have looked through everything and I think I have removed any possible short circuits, but there is no change.
I was talking to Mr. Lothark and he suggests it is a passive component (capacitor or transistor). Well, before I start listing everything in turn around the video output, I wanted to ask the wiser than me if they have any suggestions, which could be the most likely cause of the problem?