Article 25122 of comp.sys.dec:
Path: cs.utk.edu!emory!swrinde!pipex!sunic!columba.udac.uu.se!news.uu.se!tomk
From: tomk@csd.uu.se (Tom Karlsson)
Newsgroups: comp.sys.dec
Subject: Re: LA50 help
Date: 23 Jul 1994 10:47:40 GMT
Organization: CS, University of Uppsala, Sweden
Lines: 14
Message-ID: <TOMK.94Jul23124740@kobra.csd.uu.se>
References: <22JUL199415251318@vx.cis.umn.edu>
NNTP-Posting-Host: kobra.csd.uu.se
In-reply-to: tkennedy@vx.cis.umn.edu's message of Fri, 22 Jul 1994 20:25:00 GMT

In article <22JUL199415251318@vx.cis.umn.edu> tkennedy@vx.cis.umn.edu (Tim Kennedy) writes:

> Anybody have the pinouts and/or DIP settings for an LA50-RA?

You can get a complete description file for the LA50 from ftp.update.uu.se
(the file is /pub/rainbow/doc/la50inst.txt).

/Tom
--
|  Tom Karlsson    E-mail: tomk@Student.DoCS.UU.SE   phone: +46 18 260097  |
|  Student of Computer Science @ Uppsala University, Sweden.               |
|  Secretary of Update.  E-mail: tomk@Update.UU.SE                         |
|  WWW:  http://www.update.uu.se/~tomk/                                    |
|           "Intelligence is to do stupid things in a smart way"           |


Article 95103 of comp.os.vms:
Path: cs.utk.edu!emory!europa.eng.gtefsd.com!MathWorks.Com!news.duke.edu!concert!hearst.acc.Virginia.EDU!gems.vcu.edu!agnew
From: agnew@gems.vcu.edu (Brainwave Surfer)
Newsgroups: comp.os.vms
Subject: Re: HELP!!! LA50 Problem!!
Message-ID: <1994Aug28.152028.1804@gems.vcu.edu>
Date: 28 Aug 94 15:20:28 -0400
References: <1994Aug24.160613.7716@ivax>
Organization: Medical College of Virginia
Lines: 31

In article <1994Aug24.160613.7716@ivax>, dtcampbe@indyvax.iupui.edu writes:
> HELP!!!!
> 
> I recently bought a LA50 printer used from someone for $20.00 and I am 
> having problems getting it to work right.  I have the switches inside set
> to factory default (I called DEC on how to set them) and I have it 
> connected to my MicroVAX-II running VMS 5.3 using a null modem cable.
> 
> When I go to print something, it will print maby a page and then go
> crazy and start printing what appears to be "?" but turned backwards.
> Sometimes I can print just a single page O.K., others I can't even
> print a line, it just does what it want's to do.

When a LA50 breaks, the usual thing that goes is the xon xoff circuitry.
you can try to use hardware dtr flow control, and cross it over to the
right wires..  You should be able to run at 300 baud forever with NO
problems if it gets down to that..  also, someone mentioned 7 bit vs
8 bits.  That will trip you up too.  what happened with me is that i had
7 bits mark parity, and with that, the xoff appered to be something else.

voila, question marks!!!

check 7bit/8bit, and parity must be none, off, or space.

Jim

         /^^^\   \ /   Jim Agnew         | AGNEW@RUBY.VCU.EDU  (Internet)
        /      >  ||   Neurosurgery,     | AGNEW@VCUVAX        (Bitnet)
   /\_/     '   \  /   MCV-VCU           | This disc will self destruct in
 /________________>    Richmond, VA, USA | five seconds.  Good luck, Jim..."



