Search results

Thanks for this, it indeed saved me some hassle (12 years later)! I just picked up a MultiSync 3D with only the HD15 connector. I built a CGA adapter using your pinout and it works great!

Very interesting project. Subscribing to thread!

Small update: my system wasn't able to boot the disk I created from copwrcpm.td0, but it could read it in drive B when booting another disk in A. I was able to get the ramdisk to initialize at address FE-FF successfully (the default did not work). I was not able to get it to boot msdos.com, I...

Sorry to bring this thread back from the great beyond, but I've got a 4+88 (with the full height drives) that came with MS DOS 1.25 disks. I was hoping to try 2.11, so created a disk from the copwrcpm.td0 image mentioned above. It only boots as far as the version string, then the drives stops...

It's a Tandon TM-100-2A. I toned out all the pins on the PCB, checked the solder joints, and power supply voltage. Still no luck. Then I swapped in a known good spare drive for the bad drive and wouldn't you know it, it had the exact same problems! So I put the bad drive B back in, this time as...

I checked items 1-3 and they all seem okay. The caps tested out fine and I even swapped the RPM board over to drive A and it continued to boot and work normally. I guess the next step is to look at radial alignment unfortunately I don't have a scope (yet). I did swap another similar drive from a...

Great stuff, thanks! I will start on #1 and work my way down the list tonight!

Hey all, I recently was given a Kaypro 4 Plus 88 machine in good working order. It boots and runs CP/M and DOS just fine from drive A. Drive B, however, is another story. Symptoms: - Can sometimes display a directory listing from original Kaypro disk - 1/10 chance that original copy of Wordstar...

Tried it again just now and getting the same thing. I have my WiFi modem set to 1200 baud, with the correct hostname/port spoofed to 555-1212 and I can see on the oled screen that it's connecting successfully, but then I just get endless plusses.

I know this is a long shot, but I'm looking to replace the main PCB in a PVM 1342q that got damaged pretty badly in shipping. Thanks!

Hey all, I recently pulled my old Amiga out of the closet when I read that they were prone to damage from leaking batteries. Here's a video about the repair process and some upgrades. https://youtu.be/sXn-kez-cRQ Enjoy!

Hey all, hot off the press is a new video about JiffyDOS with a little background, demonstration, and benchmarking. Might be useful to folks who have never used it before. https://youtu.be/6oW8ylqyyDY Enjoy!

Hey all, I was going to do a video on the speech synthesizer but got sidetracked and ended up with this instead. It's sure to be remedial for you serious enthusiasts, but I'm just getting started and would like to make more TI content in the future so your support and constructive criticism are...

Hey all, in this video I recap, retrobite, and add analog RGB input to a Commodore 1902 monitor. Enjoy! https://youtu.be/uQp39KbTBRE

Hey all, here's a short tutorial video on using ADTPro to bootstrap your early Apple when you have no existing media. https://youtu.be/5peRTdMCkrk Enjoy!