I will check that, Brian. Thanks for your help. My other question is around the boot disk. I was sent 2 boot disks with the cable, but now only 1 seems to work. I’m worried now only having one working disk.
How do I back it up? Is there a way to do that with the DVI? Can I create one in a different disk drive, like the drive in the TRS-80 Model 4P? thanks Randy > On Feb 17, 2018, at 9:15 PM, Brian White <bw.al...@gmail.com> wrote: > > This sounds consistent with Fugu's idea about old capacitors. It sounds like > both dvi's are marginal, but one is slightly better than the other, and one > of your M100's is slightly better than the other, and so with the two best > ones combined, it just barely works, sometimes. > > I would check that voltage as he described and I expanded. > > On Feb 17, 2018 8:37 PM, "Randall Kindig" <randall.kin...@gmail.com > <mailto:randall.kin...@gmail.com>> wrote: > SUCCESS! > > Per John’s suggestion (and was thinking the same thing when he suggested it) > I now have a working system. I started trying different combinations of > DVI/M100/cable (of which I have 2 each). > > DVI #2, M100 #2, Cable #2, no luck > > So I swapped out M100 #2 (32K) for M100 #1 (24K/REX), and it worked! > > It’s still a little finicky and doesn’t always work, but has worked multiple > times now. I don’t know if there’s anything I can do to “tune” it so it’s > more consistent, but I”m pumped that I finally got it to work. > > I had tried this M100/cable combination with DVI #1, so I’m wondering if > there’s an issue with that DVI. There also must be an issue of some sort > with M100 #1 as the current DVI/cable setup didn’t work with that machine, > but does with the other. > > This sure seems like a finicky setup. I would love to see a modern DVI > replacement, perhaps with SD card for disk and video output, that would take > up far less desk space and be more robust. > > Thanks all! Any other suggestions for troubleshooting why the M100 (#2) > doesn’t work with this and also why DVI #1 doesn’t work with either M100 > would be much appreciated. > > Randy > > > > On Feb 17, 2018, at 4:22 PM, Randy Kindig <randall.kin...@gmail.com > > <mailto:randall.kin...@gmail.com>> wrote: > > > > I was just thinking the same thing John. It’s worth a try. > > > > Thanks > > > > Sent from my iPhone > > > >> On Feb 17, 2018, at 3:07 PM, John R. Hogerhuis <jho...@pobox.com > >> <mailto:jho...@pobox.com>> wrote: > >> > >> Btw it occurs to me that there are 16 permutations possible there. Not so > >> high that you couldn’t do all 16 and see if you ever get different results > >> in any of 16 if you haven’t already. > >> > >> — John. >
