- 2303 Bytes free on startup. Seems low, since all of the 2114's are populated, unless I misunderstand how much RAM I'm supposed to have.
- Inconsistent keyboard responses. I can't always reset to the "C/W/M ?" prompt, nor does it always enter BASIC after pressing C.
- The machine faintly vibrates when you turn it on.
- Visible leakage on the 10000µF capacitors.
- Rats nest of wires leading to rear panel connectors.
- I accidentally broke off a pin from the DIP-16 ribbon cable from the keyboard. Oops.
- Funky rear-panel switches. I don't even know precisely what they do, but they're hooked into the serial ports...
I can handle the last 4 problems. I've got an order of capacitors en-route, along with a fresh set of DIP-16 ribbon connectors. I think I have suitable replacement switches for the back panel, and I have a reasonable stockpile of wire to overhaul things inside the case and eliminate the need for electrical tape.
I'm not so sure where to source 2114 RAM chips, should I need replacements. I'm not even sure if they've outright failed, and I have no easy way to test them individually. I could always pull the lot of them, and test in pairs.
I'm also not sure where to start with cleaning up the keyboard to alleviate the intermittent response (assuming it's the keyboard's fault), beyond throwing a continuity tester at every switch and cleaning the inter-board connectors of any tarnish. That's what I intend to do, but beyond that? I'm not sure what common problems cause these symptoms on OSI equipment.
I seem to be having a hard time attaching images, and it's late so I put them here: http://commodorez.com/OSIC4P/