June 2005 - TechToolsList - listserv.classicarcade.com

pole position 2 z8002 help
by tony 27 Jun '05

27 Jun '05

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9100a floppy replaced
by Martin 16 Jun '05

16 Jun '05

Managed to get it working well enough that I can load software. Details at http://iobium.com/9100a%20tester/9100atester.htm I used a TEAC FD235HG drive, $12 at Fry's. Some soldering on the opened drive required. I may also have to mod the 9100a to sort out a disk change problem. Next step, get Teledisk working. Have to go rummage around for some of those really old systems... _______________________________________________ Techtoolslist mailing list Techtoolslist(a)flippers.com http://seven.pairlist.net/mailman/listinfo/techtoolslist

2 1

Floppy disk drive
by Martin 12 Jun '05

12 Jun '05

OK, so I am new to this. I have a 9100a with what appears to be a bad floppy and a temperamental hard drive. So I can probably use it for as long as the HDD lasts, but I would like to make some insurance and to do that I have to start by getting a floppy running. First try, stuff a modern drive on and see what happens. Nothing useful, of course - the thing uses what appears to be a custom drive. I check the pinout. Most of it is OK; here are the problem pins: Pin 2 Density select Listed as spare, but could be set by the 9100a Pin 4 Reserved Change 2 detect Pin 10 Motor enable A DS0 Pin 14 DRV SEL A CHNG1 Pin 34 Disk change READY input on FDD controller Given that I am only interested in Drive A, here is what I am thinking: Pin 2 Cut and (ground or float) on floppy side to ensure always double density Pin 4 Ignore or cut Pin 14 Cut and connect to pin 10 on floppy side Pin 34 looks OK; disk change goes with the disk loaded or not. Maybe jumper to 14 on the controller side. May, however, have a logic level problem. My thinking is that maybe I can get the 9100a to accept an HD floppy, but using its cranky format. If I can create disks in the new format, things could be good. _______________________________________________ Techtoolslist mailing list Techtoolslist(a)flippers.com http://seven.pairlist.net/mailman/listinfo/techtoolslist

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Re: [Techtoolslist] Unipak 2B adaptor query
by Electronicamuse＠aol.com 09 Jun '05

09 Jun '05

7 6