-----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.

Alright. I know this is a very COMMON problem, but the other COMMON problem is

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*

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

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.

was this so hard to put in the manual?

Thanks to everyone who helped me figure this out. It can be confusing sometimes when you think you've looked everywhere and it's still just in

wrong place. Unfortunately, after properly checking the NPG and BG lines for

I found that they are wired properly - I was hoping for something simple like that :( So now that I know those lines are solid, and I know the Power supply is outputting what it's supposed to, where do I go from here?

-----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.