My continuing 11/34 confusion

[Julian Wolfe]

Yes, but I don't have any of the special cards or the margin tester box. 

> -----Original Message-----
> From: cctalk-bounces at classiccmp.org 
> [mailto:cctalk-bounces at classiccmp.org] On Behalf Of Paul Anderson
> Sent: Thursday, June 08, 2006 2:09 AM
> To: 'General Discussion: On-Topic and Off-Topic Posts'
> Subject: RE: My continuing 11/34 confusion
> 
> Do you have a Uni-bus Troubleshooting Guide?
> 
> Paul
> 
> -----Original Message-----
> From: cctalk-bounces at classiccmp.org 
> [mailto:cctalk-bounces at classiccmp.org]
> On Behalf Of Julian Wolfe
> Sent: Wednesday, June 07, 2006 6:01 PM
> To: 'General Discussion: On-Topic and Off-Topic Posts'
> Subject: RE: My continuing 11/34 confusion
> 
> Alright.
> 
> I know this is a very COMMON problem, but the other COMMON 
> problem is there seems to be no good explanation as to what 
> pins are what on the damn backplane.  I know I may be coming 
> off sort of abrasive here (no offense meant to Henk or anyone 
> else) but even the 11/34 documentation *also* talks about the 
> bus grant path and gives no pin explanation on the backplane 
> - you're just supposed to inherently know where the 
> connection between CA1 and
> CB1 is in a mass of pins and wire. 
> 
> I've looked through what manuals are available on bitsavers 
> and manx, and got nothing at all that I could make sense of.
> 
> All I'm looking for is simple pin labling for a DD11 9 slot 
> backplane.  Why was this so hard to put in the manual?
> 
> IMO this information should be included in whatever FAQ you 
> want to add the bus grant info.
> 
> > -----Original Message-----
> > From: cctalk-bounces at classiccmp.org
> > [mailto:cctalk-bounces at classiccmp.org] On Behalf Of Gooijen, Henk
> > Sent: Wednesday, June 07, 2006 5:10 PM
> > To: General Discussion: On-Topic and Off-Topic Posts
> > Subject: RE: My continuing 11/34 confusion
> > 
> > First the easy question ... must be FAQ by now!
> > Did you check the wire CA1-CB1 for the slots 6-7-8-9 ?
> > It *must* be present.  The simplest check is replace all G727s and 
> > install G7273's in position C-D in slots 6-7-8-9.
> > As long as the RUN light stays on after power up, you have 
> a bus hung.
> >  
> > - Henk.
> > 
> > ________________________________
> > 
> > Van: cctalk-bounces at classiccmp.org namens Wolfe, Julian
> > Verzonden: wo 07-06-2006 22:40
> > Aan: 'General Discussion: On-Topic and Off-Topic Posts'
> > Onderwerp: My continuing 11/34 confusion
> > 
> > 
> > 
> > Alright, so, I finally was able to get good readings at the 
> backplane 
> > as far as votages go.  My AC voltage is exactly 28 volts going into 
> > all units requesting.  The -15v line is fine, it must just 
> be the bulb 
> > that's burnt out on the regulator. So, as far as I can 
> tell, my power 
> > supply is working just as it should.
> > 
> > So now I move up to the backplane.I plugged in the memory 
> and a DL11-W 
> > and put a tester on the RS232 lines - I get nothing coming from the 
> > DL11-W.  The front panel reads all zeros when powered on, the Run 
> > light and DC lights are on.
> > 
> > Here is my current backplane config:
> > 
> > 1 M8266-----M8266-------M8266-------M8266-------M8266-------M8266
> > 2 M8265-----M8265-------M8265-------M8265-------M8265-------M8265
> > 3 M7891-----M7891-------M7891-------M7891-------M7891-------M7891
> > 4 M9301-----M9301       M7859-------M7859-------M7859-------M7859
> > 5 EMPTY     EMPTY       M7856-------M7856-------M7856-------M7856
> > 6 EMPTY     EMPTY       EMPTY       EMPTY       G727        EMPTY
> > 7 EMPTY     EMPTY       EMPTY       EMPTY       G727        EMPTY
> > 8 EMPTY     EMPTY       EMPTY       EMPTY       G727        EMPTY
> > 9 M9302-----M9302       EMPTY       EMPTY       G727        EMPTY
> > 
> > Can anyone make sense of this?
> > 
> > Thanks
> > Julian
> > 
> > 
> > 
> > 
> > 
> > 
> > 
> > This message and attachment(s) are intended solely for the 
> use of the 
> > addressee and may contain information that is privileged, 
> confidential 
> > or otherwise exempt from disclosure under applicable law.
> > If you are not the intended recipient or agent thereof 
> responsible for 
> > delivering this message to the intended recipient, you are hereby 
> > notified that any dissemination, distribution, or copying of this 
> > communication is strictly prohibited.
> > If you have received this communication in error, please notify the 
> > sender immediately by telephone and with a "reply"
> > message.  
> > Thank you for your cooperation.
> > 
> > 
> 
> 
>