[Info-vax] System doesn't display anything on the Console port.

Ed Rahn edrahn01 at gmail.com
Wed Mar 3 21:30:06 EST 2021


On Thursday, February 25, 2021 at 2:14:33 AM UTC-6, Jan-Erik Söderholm wrote:
> Den 2021-02-25 kl. 03:58, skrev abrsvc: 
> > On Wednesday, 24 February 2021 at 19:06:35 UTC-5, edra... at gmail.com wrote: 
> >> On Wednesday, February 24, 2021 at 5:32:39 PM UTC-6, Jeffrey H. Coffield wrote: 
> >>> On 02/23/2021 02:49 PM, Ed Rahn wrote: 
> >>>> I just bougtht a Microvax 3100-10 and I don't seem to get anything out of the console ports. I've got a USB to NULL to H8571J to MMJ daisy chain. Should that be whats needed? I get the same thing if I remove the NULL conversion. 
> >>>> 
> >>>> All the LED's are light after power and seem to turn off then at some point in the future. 
> >>>> 
> >>>> Any ideas what could be going on? According to the documentation nothing is being executed. That doesn't really help much. 
> >>>> 
> >>>> Thanks, 
> >>>> Ed 
> >>>> 
> >>> What do the eight LED's on the back of the system box show during power up? 
> >>> 
> >>> See http://home.iae.nl/users/pb0aia/vax/3100leds.html for a description 
> >>> of what they mean 
> >>> 
> >>> Jeff Coffield 
> >>> www.digitalsynergyinc.com 
> >> The lights do not turn off. According to the link you included that means it's not executing any instructions. What exactly does that mean? 
> > 
> > IRRC the system may not be in automatic boot which means that "no instructions" are executing. By itself, that state means nothing. 
> > 
> > Any chance you have a "real" terminal that can be connected with a DECconnect cable? 
> >
> Even if the console firmware boot option is not set to "AUTO", 
> I'd expect the firmware code to start executing anyway. Are you 
> sure that it would stay in the "no instructions has executed" 
> state if the console is set to "non-AUTO" (I do not remember 
> if it was "HOLD" or such)? 
> 
> I'd guess that the current status of this system is "dead".

Would a leaked battery do this?

Ed



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