To anybody still browsing this forum and wondering if I ever got everything working... the answer is mostly yes. The SIO device works as expected and I can actually use it to create floppy disks, or just run images of software from the PC. Cool beans! The XF551 is 100% and so is the 1050. Using Spar...

Hi, Me again. Well, not much has changed with the XF551. It still can't format a disk, but the 1050 drive was able to format a disk that I thought was unrecoverable, and I was able to write and read files from both the 1050 and the XF551. I'm hoping that someone can give me an idea about what may be...

Anybody still alive on here? Well, I had the XF551 apart to fix a cracked solder joint at the power plug. While I had apart, I traced the wired from the switch on the front. It basically takes two wires to ground. The two wires on one side of the switch going to jumper wires on the top side of the s...

Well, the Asteroids cart seems to be fixing itself.

It's not 100% yet, but I'm thinking the problem is contacts in the cart slot. I've got to get some of that DeOxit spray.

I hope everybody had a great Christmas and will have a great New year!

No guesses on the toggle switch? Well, I guess I'll be taking it apart to see what it's soldered to. Here's another issue I could use some guidance on. I bought several used game cartridges from a place called 2nd and Charles. All worked except for Asteroids. I know I can download most of these cart...

Hi, I recently decided to get back into Atari computers and bought some units at a local surplus store I bought an 800XL with a 1050 drive (unmodded), and a 130XE with an XF551. Everything is as Atari sold them with the exception of the XF551. It has a 3-way toggle switch installed in the front pane...