gomez@enuxha.eas.asu.edu (Jose L. Gomez-Rubio) (02/04/90)
Is it possible to convert an external California Access 880 Disk Drive into an Amiga 2000? Thanks for the info. -- gomez@enuxha.eas.asu.edu
packer@h.cs.wvu.wvnet.edu (Michael A Packer,Knapp Hall,,2928607) (02/04/90)
From article <465@enuxha.eas.asu.edu>, by gomez@enuxha.eas.asu.edu (Jose L. Gomez-Rubio): > Is it possible to convert an external California Access 880 Disk Drive > into an Amiga 2000? Thanks for the info. > -- If you find out how to convert an external disk drive into a computer please post!!!! USMAIL: 318 Knapp Hall, WVU, Morgantown, WV 26506 PHONE: 304 293-3607 INTERNET : packer@a.cs.wvu.wvnet.edu USENET: {allegra,bellcore,ihpn4!cadre,decvax!idis,psuvax1}!pitt!wvucsa!packer
gomez@enuxha.eas.asu.edu (Jose L. Gomez-Rubio) (02/04/90)
Forgot to add two words: internal drive. Funny, when the mind operates in light speed. :-) -- gomez@enuxha.eas.asu.edu
davids@ucscb.UCSC.EDU (Dave Schreiber) (02/04/90)
In article <465@enuxha.eas.asu.edu> gomez@enuxha.eas.asu.edu (Jose L. Gomez-Rubio) writes: >Is it possible to convert an external California Access 880 Disk Drive >into an Amiga 2000? Thanks for the info. >-- >gomez@enuxha.eas.asu.edu Last August, at the suggestion of my users' group chairman, I took apart my external California Access drive and put it inside my 2000. Afterwards, he convinced me to write an article about it for the group's newsletter. Below is a copy of that article. I haven't had any problems with it since I installed it (over five months). The drive is a bit small for the bay, but looks are only skin deep :-). The article was written with a local audience in mind, so let me clarify a few of the names: Fry's Electronics is a local computer/electronics/ appliance "supermarket" that sells Amigas (among other things) and had the Commodore 2010 manual available to be read. Orchard Supply Hardware is a general purpose hardware store chain; I don't know how far the chain extends, and I apologize for the OSH part numbers if you don't have one of the stores nearby. Also, AugNET is the name of the users' group. No guarantee or warrenty is expressed or implied with this article. "It worked for me." I doubt Commodore or California Access would approve of this procedure and it will certainly void the warrenty of your drive, and perhaps your Amiga 2000 as well. The diagrams are in the form of a 2400x1200 IFF-ILBM bitmap that I designed to be printed out on a 300dpi printer. It's about 27K ZOOed & uuencoded; mail me if you want a copy, and if there are enough requests (say five or more), I'll post it to the net. Whew. Now that I've gotten all that out of the way, here's the text of the article. Enjoy. ------cut here----------cut RIGHT here------thank you------- At the July AugNET workshop meeting, someone asked me if I had considered putting my external drive into my Amiga 2000. Fifteen hours later, after a trip to Fry's Electronics and two trips to Orchard Supply Hardware, I had two internal drives and an empty disk drive shell. For those of you with a California Access external drive, this article is designed to show you how to install one of those drives in the second internal drive bay in your 2000. First off I should state that neither I, AugNET, nor any of it's officers will take responsibility for any damage you cause to your equipment because of this article. This procedure is not for those who are unsure of themselves when it comes to hardware; if you have any doubts, have a dealer do it for you. The model I used was an early California Access drive, the one without the on/off switch, so I can't say if what I describe will work on those drives with the switch. If anything described in this article seems different from your setup, stop and consult your dealer or California Access. Also be sure to read this article through at least once before attempting anything. To start off, you'll need the following items: a California Access external 3.5 inch Amiga floppy drive, a Phillips head screwdriver, a flat head screwdriver, 4 screws (Orchard Supply Hardware part #9214602), 16 nuts (OSH part #9215047), and a jumper. Shut off the power to your computer and unplug everything. Unscrew the screws on the C-A drive and gently pull it apart. Be careful, as the drive is attached to the top of the case and the cable connector is attached to the bottom. Unplug the power cable and the ribbon cable from the drive. Put the drive pieces down and unscrew the five screws holding the 2000 case to the computer. Unscrew and remove the plate that the internal floppy drive is sitting on (you may need to remove the cards you have in the 2000 to be able to reach the screws). If you have a 3.5 inch hard drive in the second drive bay, it will have to be moved into the 5.25 inch drive bay or on the hard drive controller card if it has space for the drive. Hold the drive place drive side up and insert a screw in the appropriate screw hole (use the Commodore drive as a reference if necessary). Screw on four nuts, leaving room for the screw to be screwed into the drive. Do this for each screw hole (four in all). The nuts are to raise the drive off the drive plate high enough to reach the drive bay hole. When all four screws are in, put the drive on top, aligning it and the screws. Screw each screw in gently but firmly. When finished, pull on the drive gently to make sure that each screw in is securely. The drive should be at approximately the same level as the Commodore drive. Orient yourself so that you are facing the back of the drives. On the back of the Commodore drives, you'll see a small jumper on two pins (see diagram #1). You need to move the jumper over so that it is covering the two left pins (the center pin is jumpered in both configurations). Once you've moved the jumper over, you'll need to connect the cables. While still facing the back of the drive, plug the four wire power cable into the C-A drive so that, left to right, the wires are colored orange, blue, blue, yellow. Take the ribbon cable out of the Commodore drive and plug it into the C-A drive (colored edge to right, see diagram 2). This is the end of the cable with the twist in it. Plug the other connector into the Commodore drive, colored edge to left (see diagram 1). You need to put a jumper on a couple of pins in order for the Amiga to recognize both drives. Look for the part number in your computer (in should be towards the back). If it's #312723, the jumper is under the drive cable on the motherboard (see diagram #3). If the part number is #380705-01, the jumper is under the whole drive/power supply assembly, between two sets of three chips (see diagram #4). Unscrew the drive/power supply assembly (six screws), jumper the pins, and put the assembly back into place. If you can't find the jumper, you can get more information from the place I got mine: the Commodore Amiga 2010 installation guide. Now, before you put the computer back together, you'll need to test it to make sure it's working. Put the drive plate back into place, and make sure any autobooting hard drive is disconnected. Plug in the computer and monitor, and then turn on the computer. Insert a Workbench disk. As soon as the bootup starts, press CTRL-D repeatedly until you break out of the startup-sequence. Put a formatted, unprotected disk into the Commodore drive. Type at the CLI "info df1:". You should get the standard information about the disk, including a READ/WRITE status. Take out the disk, write-protect it, and reinsert it. Type "info df1:" again. You should get a READ ONLY status. Next try reading from and writing to the disk (be sure to unprotect it first). Try the same things with the C-A drive. If the testing procedure above doesn't go as described, turn off the computer and check all the connections. If it still doesn't work, you should consult a dealer as you may have damaged a component in your computer. Assuming everything went fine, you can assume you have two working internal drives! Screw the drive plate back in firmly and put any cards back into the computer. Take the second drive bay face plate out of the case. Put the cover back on carefully and screw it on. The Commodore drive is DF0: and the California-Access drive is DF1:. Enjoy! ------cut here--------------cut here----------the end------------- P.S. Don't worry about the fifteen hours. I slept for nine of them :-). -- Dave "Welcome to the Nineties. Now go home." Schreiber at davids@slugmail.ucsc.edu (prefered) or davids@ucscb.ucsc.edu
dcr3567@ultb.isc.rit.edu (D.C. Richardson) (02/05/90)
In article <465@enuxha.eas.asu.edu> gomez@enuxha.eas.asu.edu (Jose L. Gomez-Rubio) writes: >Is it possible to convert an external California Access 880 Disk Drive >into an Amiga 2000? Thanks for the info. ^^^^ ^^^^^^^^^^ >-- >gomez@enuxha.eas.asu.edu Wow! If you find out how to do this, let me know! I'd love to get a 2000 for $199 list! ;-) (Couldn't resist) Daniel Richardson Up In Snow Country