#retro #dosgames #repair Following on from Ep 1 when I managed to get this MG Headland 286 motherboard to post I continue with the repairs and work on the Keyboard circuit before a lot more testing and some very interesting problems.

EP.1 https://youtu.be/S1IrG-e3O4I

If you want a lot more information look at the tread over at Vogons https://www.vogons.org/viewtopic.php?f=46&t=89208 or my github for the LA files. https://github.com/midicdj1000/headland-286-files

I also tested a sound card that uses DMA and that does not work. Without sound Wolf3d will run for hours with no faults, but once installed a sound card and use DMA it started to get buggy and eventually crash, on top of this no digital sounds worked in any game or in the sound card test programs so the DMA is not limited to Floppy access.

Thumbnail is from @JamesOGradyWhatHoSnorkers https://www.youtube.com/c/JamesOGradyWhatHoSnorkers

Go and watch his channel if you like retro games especially type in games when he fixes bugs or adds new parts with lots of cosplay, So much fun .

00:00 intro 00:30 fixing the keyboard circuit 02:30 basic testing of the 286 board 06:28 trying a Floppy - IDE - Serial card 10:17 looking at all the bodge wires 15:33 using the Logic Analyzer to look deeper at the Floppy reading problems 20:25 A closer look at the LA Data 24:13 Testing the Floppy drive and controller on a Pentium. 25:41 conclusion - The 286 says NO floppy disc for you.