Relay-Version: version B 2.10.3 4.3bsd-beta 6/6/85; site cbmvax.UUCP Posting-Version: version B 2.10.3 4.3bsd-beta 6/6/85; site cbmvax.UUCP Path: cbmvax!daveh From: daveh@cbmvax.UUCP (Dave Haynie) Newsgroups: comp.sys.amiga Subject: 2000 Owners Relax (WAS: Re: 2000 owners beware!) Message-ID: <3147@cbmvax.UUCP> Date: 14 Jan 88 20:26:29 GMT Date-Received: 14 Jan 88 20:26:29 GMT References: <2808@homxc.UUCP> Distribution: na Organization: Commodore Technology, West Chester, PA Lines: 105 in article <2808@homxc.UUCP>, jonny@homxc.UUCP (J.HILL) says: > Keywords: missing disk pin, second drive > > This one should blow a few micro minds. Well, this posting did. > I followed the simple installation instructions to the letter > and powered up with a workbench disk in drive one. The disk > light came on and stayed on, but no telltale disk head noises > ensued. The the screen flashed the workbench disk request icon -- > recall that workbench was already in the disk drive. I powered > down and tried it again, with the same result. Next I tried booting > on some other disks, but got the same request for workbench. The second > drive light never came on during any of this. And by the way, > the first drive worked fine before I installed the second internal > drive. You may have had a second drive with it's jumpers incorrectly set. There are on-drive jumper blocks on every 3.5" drive, and no two manufacturers make them the same way. They're supposed to be shipped in the proper position for DF1: regardless of maker. > Can you guess what I found? There is a 34 pin ribbon cable > connector next to the power supply. Since the jumper pins you > connect to tell the system about the second internal drive are > underneath this cable, I had to lift the female socket to install > the jumper. The second time I lifted it I noticed that one of the > 34 pins coming up from the motherboard had taken a hike. Can > anyone out there guess where it went? Into the socket, of course. > Permanently. It had sheared off completely at the base. No it didn't. That's what's called a KEY. The 34 pin connector looks something like this (side view): O O O O O O O O O O O O O O O O O O X O O O O O O O O O O O O O O O The "X" there is your missing pin. And it's supposed to be missing. And the corresponding pin on the mating connector is supposed to be filled. That's how we prevent people from accidently plugging in this connector wrong. Who would? Last week I would have asked myself who would go crazy over a keying pin... > Up to this time I assumed the pin had just been faulty and > had separated when I pulled up the socket, but when I got to Family > Computers, there was another irate costumer there for the same reason: > I mean same pin, same malfunction. Sounds like your store may have received a batch of add-on 3.5" drives that are jumpered incorrectly. If you know the manufacturer, I could find out the proper jumper arrangement with no problem. Or maybe you're just having trouble installing the things right. THERE IS NOTHING WRONG WITH THOSE A2000s, HOWEVER! > So the store manager started opening A2000 cartons. Guess what he found? > Four more brand new 2000's with the same pin severed from the motherboard. I should hope so, they're supposed to be that way. > He finally found one machine, his last, from an earlier shipment that had > all of its teeth, and both my internal drives now live happily together. The first machines out went out with non-keyed drive connectors. I've got a few early boards without the keying around here. It's a bit more dangerous (at least I though it was!) having the non-keyed connector, but no reason to hold up production. The keyed pin isn't connected to anything, so it doesn't hurt if it's actually connected to the ribbon cable. > My advice to all 2000 owners is to open your cabinets right away and > check the 3.5 inch drive ribbon cable connector next to the power supply. > ... If yours is gone too, take it back before the warranty expires, or you > might as well install a can of dog meat where the second drive should go. Hopefully they won't take that advise, it's very wrong. > Lastly, I would really like to hear from the Commodore staff who post > to this news group. Here I be. > Do you folks know about the SEVERED PIN SCANDAL yet, and how for god's sake > did this happen? Could it have been, maybe, I dunno, SATAN! Or should we talk about the FALSE ALARM SCANDAL that could be sending many A2000 owners into senseless and needless panic. If you're having problems with the second floppy drive, chances are probably better than 99.9999% that the darn thing's jumpered wrong. I don't know which vendor's drives they're using this week (could be anyone, they seem to change all the time), but I'll try and post some jumper maps for the more common drives as soon as possible. > This is one for the books. All of them. Definitely going down in mine... > Jon Hill -- Dave Haynie "The B2000 Guy" Commodore-Amiga "The Crew That Never Rests" {ihnp4|uunet|rutgers}!cbmvax!daveh PLINK: D-DAVE H BIX: hazy "I can't relax, 'cause I'm a Boinger!"