[Info-vax] Troubles with using LCD monitor on Vaxstation 3100/38

[Kerry Main]

> -----Original Message-----
> From: Info-vax [mailto:info-vax-bounces at rbnsn.com] On Behalf
> Of maltboy20--- via Info-vax
> Sent: 04-Nov-16 5:40 PM
> To: info-vax at rbnsn.com
> Cc: maltboy20 at gmail.com
> Subject: [Info-vax] Troubles with using LCD monitor on
Vaxstation
> 3100/38
> 
> I am testing a number of Vaxstations before sending them to my
> users and none of them are generating output to the monitor.
> 
> 1) I am using the Digital brand cable of 15 pin male breaking
out to
> 5 BNC connectors and then into VGA end for LCD monitor.
> 
> 2) I am using the same Dell 1908FP monitor they use at the
plant
> that is autosyncing and has the range to work with the output
> from the VAxstation.
> 
> 3) I have a keyboard and mouse connected to the Vaxstation, but
> no network (is that the problem)?
> 
> 4) The S3 switch is down, but I've tried it in the up position
> without any luck.
> 
> I have tried other monitors as well with no luck.  I don't have
a
> SOG type monitor, nor any CRT ones.
> 
> The monitor is telling me no output is coming.
> 
> Any ideas?  I am stuck and the vendor is not helping.
> 
> Thanks, Mike
> 

A few suggestions:

Good VAXstation 3100 FAQ (text) with a wide range of info (even
thinks like associated SID with type of Alpha)

http://www.people.vcu.edu/~agnew/MVAX/MVAX_FAQ_TEXT.HTML

Since it is not just one VAXstation with the same issue, one
might assume that it is therefore not a single system issue, but
rather a common config or cable type issue.

May not be related, but interesting extract from a history buff
"good stuff" articles:
http://www.people.vcu.edu/~agnew/MVAX/MVAX_FAQ.HTML 
http://www.people.vcu.edu/~agnew/MVAX/9412_DECUSERVE_JNL.HTML

" Note 1767.4, 12-Oct-1994
Hanrahan: 
----------
> There is a device which plugs into the 9 and 15 male D
connectors
> and has three (3) MMJ conectors labeled 1 2 3.  
> I am guessing that these must be for a terminal, a mouse, and
?, 
> but which is which.
    
if you were using the unit as a VAXstation, you'd remove this
device and
plug the monitor/mouse/keyboard cable into the D15 connector.
This 
connector provides access to OPA0 and TTA1, used for the keyboard

and mouse (they're serial, near-EIA232 devices), along with the
video
leads.  At the other end of the monitor/mouse/keyboard cable are
three BNC
plugs, the mini-modular jack to accomodate DEC keyboard cables,
and the mini-DIN
socket to accomodate the DEC mouse. 

The D9 connector remains the printer port, TTA3, and the D25 
connector is TTA2, providing full modem control (even CTS, which
iis odd given
that it's a DZ-like device, but it does).  The box with the 
MMJ sockets on it simply converts all of these to MMJ (and
ignores the
video signals).  "

Btw, contact me offline as well if you need thinwire,
terminators, T-connectors etc. I still have a bunch of each.


Regards,

Kerry Main
Kerry dot main at starkgaming dot com