Commodore CBM 8032: Help with repair
Posted: Wed Sep 05, 2018 11:53 am
Last year I got a Commodore CBM Model 8032. I like that old computers really, but it needs some work.
One thing that I can't solve myself - or I at least need hints were to start - is, that the screen shows characters in every 2nd column, right after switching on. And if I type, even the typed in character changes. I hope it is visible in the picture.
I already took out the mainboard and cleaned it completely - but it seems some chip has an issue. Can anybody lead me to the direction which one it is and how to test it (I even have a oscilloscope at my disposal).
Here is the mainboard of the computer: Btw.: Shortly after I picked it up from the post office it worked - but only for an hour or so: The working computer - sadly that didn't last too long.
Can anybody help?
Thank you very much!
One thing that I can't solve myself - or I at least need hints were to start - is, that the screen shows characters in every 2nd column, right after switching on. And if I type, even the typed in character changes. I hope it is visible in the picture.
- CBM_working.JPG (96.5 KiB) Viewed 6271 times
Here is the mainboard of the computer: Btw.: Shortly after I picked it up from the post office it worked - but only for an hour or so: The working computer - sadly that didn't last too long.
Can anybody help?
Thank you very much!
