KA650 VAX memory error

[Joseph Zatarski]

On Sat, Mar 2, 2019 at 3:16 PM Glen Slick via cctalk
<cctalk_at_classiccmp.org> wrote:
>On Sat, Mar 2, 2019 at 12:02 PM Joseph Zatarski via cctalk
><cctalk at classiccmp.org  <http://www.classiccmp.org/mailman/listinfo/cctalk>> wrote:
>>//>>/On a somewhat related note, I don't suppose anybody knows or has />>/documentation on the pinout of the C/D interconnect on these RAM boards? />>/The pinout for the ribbon cable is in the manual, but the C/D />>/interconnect doesn't seem to be documented in any of the manuals that />>/are online. />
>650QS Field Maintenance Print Set, MP-02538-01, Rev C1
 >http://www.bitsavers.org/pdf/dec/vax/650/MP02538_650QS_Sep88.pdf  <http://www.bitsavers.org/pdf/dec/vax/650/MP02538_650QS_Sep88.pdf>
>
>Page 65 of the PDF, KA650 Circuit Schematics Page 23 of 40
>MA0 - MA9
>CAS0 - CAS3
>RAS0 - RAS3
>WE
>SE
>XADDR20, XADDR21
>+5
>GND
>
>Page 47 of the PDF, Page 5 of 40 is an overview block diagram of those
>signals originating at the DC357 CMCTL Memory System Controller.

OK, thanks, that's great. Now I won't have to bother tracing things out if I decide to go that route. Didn't realize there was a printset for the KA650, but I guess I didn't even bother to check.