The Archimedes is back on the bench

Now I have an oscilloscope, I thought it was time to break out the Archimedes. So far it has resisted my attempts to diagnose exactly what is wrong with it but I will persevere. Symptoms are the same whether I use a Gotek or a real drive.When you try and access the drive you getContinue reading “The Archimedes is back on the bench”

Updates and some Smaller Projects

Well I haven’t stopped working on projects and while some of the have been successful, others have not been so successful. It doesn’t help that my desoldering station has broken. I just need to get some specialised glue to fix it. Archimedes The Archie still has a bunged Floppy Disk Drive and I’m stumped asContinue reading “Updates and some Smaller Projects”

Upgrades, Problems, Parts

It’s been an exciting few weeks. Archimedes The Archimedes continues to confound me. I finally got a replacement 1772, plugged it in and… No change! At this point I have swapped out all the chips that feed the floppy disk. If you look at the schematics, I have socketed and tested IC29, IC30, IC38, ICContinue reading “Upgrades, Problems, Parts”

Trying not to get discouraged

So it’s been a frustrating week of stuff not getting fixed. The kind of week where the hobby feels more like a “job” than “something fun”. Firstly the Archimedes is still having problems with the floppy disk, despite me swapping out the 74HC574. I will need some time to put it on the bench andContinue reading “Trying not to get discouraged”

Broken Archimedes, Working 3D printer

No post last week. I got busy with non “retro nerd” stuff and didn’t have anything to post. So far this week has been a lot more exciting. Poor Archie My Archimedes 440 has decided that, no, it no longer wants to read Floppy Disk images. This has kept me occupied for most of theContinue reading “Broken Archimedes, Working 3D printer”

Achievement Unlocked: 3D Printing

Over the last few weeks, I’ve been accumulating all the “bits and pieces” to finally properly use my 3D printer. Today everything came together and I finally printed my first 3d print! It’s a little holder for the rotary encoder and OLED display for a Gotek drive. I often mount them externally on some cable,Continue reading “Achievement Unlocked: 3D Printing”

Owner of a broken Arch.

So my purchases from AliExpress finally started trickling in, and, with some sockets from Jaycar I was ready to move forward with trying to fix the Archimedes. This was very heavily assisted by the always excellent team over on StarDot. Step 1: Burn off a set of Diagnostics ROMs to allow me to see whereContinue reading “Owner of a broken Arch.”