Brian Instruments BRIKON model 723 floppy drive tester/analyzer

From: Joe R. <rigdonj_at_cfl.rr.com>
Date: Tue Jun 1 08:40:11 2004

Kenn,
  
  I have two model 723s and a manual. I don't remember the details of the
options off the top of my head but I'll try to find the manual and scan it.
 I THINK one of mine has some of the analog options but I don't have the
cables for them and I don't know the pinouts. Perhaps you can help with
that. BTW where are you loacted?

      Joe

At 05:09 PM 5/30/04 -0600, you wrote:
>I finally got around to fixing a Brian Instruments BRIKON
>model 723 floppy drive tester/analyzer I purchased (broken)
>some time ago. It was a pretty easy problem in the power
>supply (two shorted capacitors). It now powers up, lights
>blink, and I don't know how to use it :-)
>
>Inside the unit the EPROM stickers say "P723 Apple Dual
>Analog 4/29/92", so I assume that means this puppy can
>test Apple analog drives. Just for fun I tried plugging
>in an old 5.24 inch IBM-PC drive, and after moving the
>drive select (DS) jumper on the drive to "1", I can step
>the head back and forth using buttons on the front of the
>Brian. Ohh I'm a clever monkey!
>
>There's a lot I don't know about floppy drives, and I don't
>understand most of the info the unit presents on it's front
>panel or display. What's "Radial Select" mean? Or "Binary
>Select?" Or "Mux Control," for that matter? What does the
>following pattern mean when displayed following completion
>of a test cycle?
>
> --.
> |
> | |
>
>Looks like a seven, but there's an extra segment lit up!
>BTW, the 723 reported that my old floppy drive failed the
>test, which is quite possible. I was willing to sacrifice
>that drive in the interests of my education. :-)
>
>I would really like to get my hands on a manual for the
>unit. My search in Google took me to this web site, where
>someone way back in 2002 was looking for a BRIKON 723
>with the analog/alignment attachment (option R). I don't
>know if that's the same as the Apple Dual Analog feature
>my 723 has. There's nothing on the back of my unit that
>says "option R" has been installed. My unit has one "free"
>slot inside. I guess that's for an option I don't have.
>
>Could anyone out there provide me with a copy of the
>owner's manual? Of course I'll pay for photocopy charges,
>etc. Alternately, anyone out there interested in outlining
>how to use this puppy?
>
>Thanks so much,
>
>Kenn
>
Received on Tue Jun 01 2004 - 08:40:11 BST