Re: [M100] DVI help

No problem of course. It's nice to think of another couple units working and another couple people learning how something old worked and carrying it forward another few years. -- bkw On Feb 19, 2018 9:11 PM, "Randall Kindig" wrote: > Brian, you are absolutely

Re: [M100] DVI help

Brian, you are absolutely correct. You sent me everything I possibly needed to understand how this should work and I managed to ignore some of it. I really, really appreciate all your help. I’m just pumped that both DVI’s work when for a while I thought neither did. I will check the disk to

Re: [M100] DVI help

The manual, which is on-line btw, does mention somewhere in there that the first step loads software from the disk to the dvi. Then the 2nd step loads from the dvi to the M100. It also shows the backup procedure and all kinds of other stuff. Also, 3 observable things do happen when the M100 is

Re: [M100] DVI help

On Sun, 18 Feb 2018 21:02:15 + (UTC) Joan Leach wrote: > Randy, I'm not sure, but I wonder if an old Central Point Copy2PC > Option Board could make a copy of that boot disk. Anyone back in the > try it? Joan in Reno There's nothing on the DVI disks that are that

Re: [M100] DVI help

probably had to warm up caps.. when they get old.. sometimes it takes a bit. Greg On Sun, Feb 18, 2018 at 2:45 PM, Randall Kindig wrote: > This worked perfectly, Brian! I now have a backup system disk and both > have the write-protect tab on them. > > thanks! > > By

Re: [M100] DVI help

This worked perfectly, Brian! I now have a backup system disk and both have the write-protect tab on them. thanks! By the way, the system is consistently booting now. Just had to shake the dust off of it, I guess. Still would like to see if I can get the other DVI box working. Randy > On

Re: [M100] DVI help

ct: Re: [M100] DVI help 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?

Re: [M100] DVI help

Thanks again, Brian. I’ll try these steps. It will make me feel better to get a backup made. Randy > On Feb 17, 2018, at 10:26 PM, Brian White wrote: > > Also make sure your new disks are double density, 360K, not high density, > 1.2M. > > On Feb 17, 2018 10:24 PM,

Re: [M100] DVI help

Also make sure your new disks are double density, 360K, not high density, 1.2M. On Feb 17, 2018 10:24 PM, "Brian White" wrote: The easiest way is using the backup program on the system disk. It's possible but I think it's probably more difficult with a modern pc. I don't

Re: [M100] DVI help

The easiest way is using the backup program on the system disk. It's possible but I think it's probably more difficult with a modern pc. I don't think just any modern floppy controller chip can do it, and you need a 360K drive too, ideally, not the more common 1.2M drive. Then you also need

Re: [M100] DVI help

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

Re: [M100] DVI help

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

Re: [M100] DVI help

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

Re: [M100] DVI help

-boun...@lists.bitchin100.com> on behalf of Brian White < bw.al...@gmail.com> Reply-To: <m...@bitchin100.com> Date: Saturday, February 17, 2018 at 1:48 PM To: <m...@bitchin100.com> Subject: Re: [M100] DVI help That is interesting. I have just confirmed that there is continuity fro

Re: [M100] DVI help

February 17, 2018 at 1:48 PM To: <m...@bitchin100.com<mailto:m...@bitchin100.com>> Subject: Re: [M100] DVI help That is interesting. I have just confirmed that there is continuity from pins 1 & 40 on the M100 end of my DVI cable, all the way to the + side of C67 inside the DVI, And c

Re: [M100] DVI help

That is interesting. I have just confirmed that there is continuity from pins 1 & 40 on the M100 end of my DVI cable, all the way to the + side of C67 inside the DVI, And continuity from pins 2 & 39 all the way to the - side of C67 (and every other ground in the dvi, including the case) C67 is a

Re: [M100] DVI help

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.

Re: [M100] DVI help

How are the M100¹s powered? AC or battery? The DVI box relies on the +5V from the M100 to enable the interface without that nothing will happen. You might want to check that both M100¹s are providing a good +5V at pins 1 and 40 on the IC Bus socket. Even though the M100¹s are working they can

Re: [M100] DVI help

That is correct, sir. That’s exactly what’s happening with any combination of M100’s, cables, and DVI’s. > The only other hint I can suggest is that it IS possible to plug the bus > connector on a M100 off-center by one pin, and leave 2 pins hanging off the > edge of the connector. I’ve

Re: [M100] DVI help

If you get the 3 lines of microsoft version info on the tv screen, that does prove the drive is working at least well enough to read the first sector. When you say nothing happens, let me get this exactly: You get both the "please wait" and the "insert system diskette" prompts. You close the

Re: [M100] DVI help

appreciate the thoughts, John. My question is: both drives? That’s why I bought a second DVI; to see if there was a problem with the first one. Also, it seems to me, and I could be totally in left field, that the fact that it boots to the Microsoft screen off the disk (both of them do this)

Re: [M100] DVI help

Disk drive broken? Loose belt maybe? Damaged or dirty head? Is there some way you can test it to gain some confidence? Say, in a pc? That’s what was wrong with Brian’s DVI in the end. I think there are some disk drive replacements around. Either you could buy a new one or find a gadget that