On Wed, Jul 5, 2017 at 9:09 PM, Ethan Dicks <firstname.lastname@example.org> wrote: > On Wed, Jul 5, 2017 at 2:23 PM, Francesco Messineo >> >> Inside the VIC metal box there's a 10k potentiometer that sets the >> video signal level. Again, this signal is then buffered by another >> emitter-follower. A DC-blocking electrolytic is placed before the base >> input to the emitter follower, so this one might also be dried out and >> have high ESR. >> Your best friend is an oscilloscope in both cases. > > Awesome advice. I'll keep your words in mind as I check the > schematics. Thanks! just don't quote me on the 10k trimmer. It could be anything from 1k to 1M actually (but it does set the video level). I don't come to see and repair many VIC-20s lately :/ Frank Message was sent through the cbm-hackers mailing listReceived on 2017-07-05 20:02:21
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