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From: whitcomb@ic.uucp (Gregg Whitcomb)
Newsgroups: comp.sys.amiga
Subject: A2000 serial port != A1000 (ackkkk!)
Message-ID: <1962@ucbcad.berkeley.edu>
Date: Mon, 19-Oct-87 19:56:20 EDT
Article-I.D.: ucbcad.1962
Posted: Mon Oct 19 19:56:20 1987
Date-Received: Tue, 20-Oct-87 23:35:24 EDT
Sender: news@ucbcad.berkeley.edu
Reply-To: whitcomb@ic.UUCP (Gregg Whitcomb)
Organization: U.C. Berkeley EECS CAD Group
Lines: 23
Summary: yaic

I decided to build the MIDI interface from the schematic which was posted
on the net several months ago.  It wasn't long before I discovered that
the A2000 (recently purchased) has a male serial connector (I suppose
the A1000 has a female connector since the circuit calls for a male DB25).
What's worse however is that unlike the A1000, a +5V supply is not available
on the A2000 serial port! I believe pin 21 of the A1000 port is the +5V pin.
This pin is left unconnected on the A2000 port (?????).

What I want to know is: why? (yaic - yet another incompatible computer)
  
Note to C=: Shouldn't people be warned that currently available
   Midi boxes (like the one advertised in the booklet enclosed 
   with the A2000) are for the A1000 only?.  I suppose it wouldn't take toooo
   long for them to find out themselves (after spending the $40-50).

I guess I'll have to connect a 5V regulator to the +12V signal that IS present.



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Gregg Whitcomb                              USENET: ucbvax!ic!whitcomb
					    ARPA:   whitcomb@ic.berkeley.edu
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