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From: blgardne@esunix.UUCP (Blaine Gardner)
Newsgroups: comp.sys.amiga
Subject: WARNING! Wico trackball modification ERROR!
Message-ID: <257@esunix.UUCP>
Date: Wed, 3-Dec-86 00:55:25 EST
Article-I.D.: esunix.257
Posted: Wed Dec  3 00:55:25 1986
Date-Received: Fri, 5-Dec-86 05:51:10 EST
Lines: 37
Keywords: OOPS! Don't plug it in yet!

Monday I recieved mail telling me that I made an error in the Amiga
mouse connector pinouts. This is the first chance I've had to
double-check. Sure enough, I blew it.
(a 16 hour work day does wonders for clear thought!)  o)


Her are the correct pinouts:

1	V-pulse
2	H-pulse
3	VQ-pulse
4	HQ-pulse
5	NC
6	Button 1
7	+5 Volts
8	Ground
9	Button 2

The error I made was switching pins 9 & 7. 7 is +5 Volts, not pin 9.

I don't know how I managed to switch pins 9 & 7, but the above listing
is correct. Sorry for any trouble this caused. I think the worst case
would be a non-working trackball, not smoke + fire. Thanks again for 
showing me the error of my ways.

p.s. I got my 1.2 "enhancer" yesterday, 3 disks and a 77 page book for
     $15. That's nearly free! Thanks Commodore-Amiga, I guess you do
     care after all. (I still remember the $70+ Apple IIe "enhancement")

-- 
=================================================
"The Admiral is well aware of the regulations..."
=================================================

Blaine Gardner @ Evans & Sutherland
{ihnp4, decvax}!decwrl!esunix!blgardne
560 Arapeen Drive  Salt Lake City, Utah 84108  (801) 582-5847