Re: Another A5 board repair attemp - help needed
Hey Roger,toggle quoted messageShow quoted text
Outstanding, congrats on getting the traces going!
TEST04 means your calibration data is gone, and you'll have to re-calibrate
the scope. See pages 6-11/6-12 in the service manual. It's not the worst
thing in the world, as the scope probably could have done with a
I believe that the dots are unrelated to the calibration error, they're
likely there because your grid bias is too high (as Leo, satbeginner had
mentioned). This means you see the portions of the readout where the beam
should be blank. This probably also means that someone was in there before
you, but they only went so far as to tweak the grid bias.
On Fri, Nov 6, 2020 at 1:30 PM Rogerio O <firstname.lastname@example.org> wrote: