Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!batcomputer!cornell!rochester!rit!ajl3578
From: ajl3578@cs.rit.edu (Anthony J Leccese)
Newsgroups: comp.sys.m6809
Subject: Re: Info on Coco 3 needed
Message-ID: <2372@cs.rit.edu>
Date: 12 Jun 91 16:27:41 GMT
References: <2364@cs.rit.edu> <6858@mcrware.UUCP>
Sender: news@cs.rit.edu
Distribution: usa
Organization: Rochester Institute of Technology, Rochester, NY
Lines: 45

In article <6858@mcrware.UUCP> jejones@mcrware.UUCP (James Jones) writes:
>In article <2364@cs.rit.edu> ajl3578@cs.rit.edu (Anthony J Leccese) writes:
>>1. Is there anyway to get a 40-track drive to read the 35-track disks that
>>   you get software on?
>
>In the OS-9 case, definitely; LSN 0 of the disk tells OS-9 that there are
>only 35 tracks (and the device driver will even double-step a 96tpi (80
>track) drive to read a 35 or 40 track disk).
>
>In the Disk BASIC case, yes, too; Disk BASIC won't even notice that the
>extra tracks are there.
>
>	James Jones

Sorry for writing the question that way, but let me clarify my problem. I'm
trying to use two old (circa 1981) TEAC FD-50E-20 full-height drives with
my coco using the FD-500 controller. They can format and read disks, but can't
read the standard Radio Shack drive formated disks. I have tried most of the
different combinations of the jumpers (they are, in case someone knows about
the drive, hs, ds0, ds1, ds2, mx, ds3, and hm). Someone suggested it's the
alignment, which after thinking about it is probably the problem since it did
start to read the other disk on a couple of occasions before it got an error.

While I'm at it, I have two new questions.

Does anyone know how to connect two 34pin card edge connectors together?

On the original Tandy FD-500 drive, (Texas Peripherals model # 01-0065-001),
there is a blue 16pin chip near the card edge which I believe has been fried.
The only numbers on the chip are 16-1-151 and 8431(been told thats the date).
The number doesn't cross-over to anything, so if someone knows what it is or
who might know (local Radio Shack wasn't much help) I'd appreciate it if you
let me know.

Thanks for everyones help.

     						Anthony Leccese

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
E-mail:			    Rochester Institute   "I'm just ordinary average 
ajl3578@cs.rit.edu	       of Technology 	    guy" -Joe Walsh       
ajl3578@ritvax.bitnet			  	  "It's a dog eat dog world,
ajl3578@ultb.isc.rit.edu    Anthony John Leccese   and I'm wearing milkbone
ajl3578@ritvax.isc.rit.edu    Computer Science	    underwear!" -Norm-Cheers
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%