osiweb.org

In fact, it is freezing when tokenizing newly entered BASIC statements. Thanks for the lead. I test to see if there's something unique about the statements that could be problematic. I don't have another copy or version of BASIC to test. Will have to try downloading and serializing a new copy of BAS...

Hello, I'm working with a newly acquired C4PMF and OSD65 v3.2 NMHZ and hitting a few stumbling blocks: 1. single-drive so I'm keying in one of the old single drive copy programs in BASIC to get to a place where I can make copies of the one good disk I have. 2. Entering BA from A*, the system reports...

I'm restoring a C4PMF and have a question: * Did OSI ever produce the version of OS65D specifically designed for controlling/interfacing with the BSR AC control modules? * If I were to scrounge up an old BSR AC module, where could I find detailed instructions on how to interface it with the C4P? Tha...

I'll be listing for sale some C1PMF items on Ebay in the next few days: my Ebay seller ID is thomas_blu Set of original OSI BASIC ROMS -- working, pulled from a 600 RevB CARGEN V1 ROM -- working, pulled from a 600 RevB OSI C1PMF 5.25 floppy drive case. No floppy drive, just the case. PSU has been pu...

I hit a snag. 600B+610+D13 all connected but 610 board shorts (the PSU clamps down) when I apply 5V to molex pin 14 at the connection to the D-13. Being a relative novice may be the issue here. I am drawing the 5V directly from the 5V rail of the 610 board: soldered a wire to the rail and connected ...

Thanks Grant. Actually, I'm working with a SA-460, so 5.25 drive. Will report back on the TR1 calibration soon. Tom

Grant, D-13 is built, 600D is working, 610 is working. Almost ready to connect a 5.25 floppy drive. Two questions I'm hoping you can help with: 1. What's the recommended procedure for calibrating TR1 when using the D-13 with the 610 board. What pins should I hook the probes to and what waveform\timi...

Grant,

I'm assembling the D-13. Very exciting. Quick question... Which one of the .156 connectors is Pin 14 and which one should be connected to pin 1 on the original OSI 610 board? Just want to make certain I match up the D-13 with 610 correctly.

Thanks

Hi Dave, Thanks for the suggestions. I have a digital scope and will look for the signals and check the cable for continuity. The file I keep referring to was provide by Grant who generously packaged everything a person would need to build OS65D disk 5 from scratch, track-by-track. His instructions ...

I'm back to troubleshooting the disk drive on my C1PMF. I most likely have a bad logic board on the drive that is generating a faulty trk00 signal. But I'm still ruling out basic things. Here's one basic thing I'm hoping folks can help with: What is the appropriate orientation of the small, rectangu...