After taking that pic, I got done cleaning the CBM. The entire Body, Board and keys all look a lot better now and im glad to say that after all of that, it turned on no problem as well! (Before and after)

Now that I finally get to use this thing properly, there are a couple of oddities which are worth a second look I reccon!

For one, it runs Basic V1, so I asume this machine must be from the early run of production? The 2 chip expansions which can be seen on the board, seem to be “Exbasic: Level II” which is a Basic Expansion sorta thing that replaces the original Basic if loaded. It too, fully works.

3 of the issues I noticed thus far is that for one, pressing the " Button has some odd effects on the top row of the num pad, in which if I press a button up there, instead of them doing thier normal thing, they type in Letters and Symbols with the Background change thing. Pressing " again reverts it back to normal… still quite annoying tho, since those are were the cursor keys are at. I’ve also cleaned both the keyboard as well as its actual Circuitboard underneath, so I’m not sure whats causing this.

Another odditie is that sometimes at pure random, all the Characters on screen change to @'s and P’s… then they revert back after a minute or two…

And for the final thing I’ll definetly wanna fix with no clue how, is that the Monitor is oddly Zoomed out. The text is all further back then it should be making for a weird look. Old Burn-in from when this thing was actively used also assures me of that. No clue how one can fix that, any suggestions?

Also working on getting a SD-2-PET so I can run games and Diagnostics too, but thats for some another time! I also wanna thank this community for all the feedback! Couldn’t have gotten this thing running if it wasnt for you!

  • wjrii
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    4 months ago

    And for the final thing I’ll definetly wanna fix with no clue how, is that the Monitor is oddly Zoomed out. The text is all further back then it should be making for a weird look. Old Burn-in from when this thing was actively used also assures me of that. No clue how one can fix that, any suggestions?

    Most CRT displays have potentiometers, adjustable by screw or knob, to control horizontal and vertical size. As always, be careful with flyback transformers, etc., so as not to die.

    Burn in is a real and AFAIK permanent thing.