[HECnet] Re: [DECtec] VCB02 issues

Sent from mobile device that advertises itself for no good reason On 12 May 2014, at 23:03, Gregg Levine <gregg.drwho8 at gmail.com> wrote: Hello! Dave what are these grouchy examples of technology that followed Cory home? The other two are obvious. But the PDP-11/23 Plus seems to be an interesting critter. What's wrong with it Cory? Looks like the main crystal got knocked about and crushed. Haven't tested with a scope yet though ----- Gregg C Levine gregg.drwho8 at gmail.com "This signature fought the Time Wars, time and again." On Mon, May 12, 2014 at 10:59 PM, Dave McGuire <mcguire at neurotica.com>wrote: On 05/12/2014 10:01 PM, Cory Smelosky wrote: Trying to test the est of the haul. That means the VCB02 and VR290 at present. ;) Testing it ina MicroVAX II...I'm not even to the point of VMS! I've read it can be used as the console...but not in my case! The diagnostic LEDs on the VCB02 board never change at all. They all come on during power-on and never go off. The same behaviour was exhibited by ny dead 11/23+ board. Any ideas of what I can check? It's got to be some really obvious error. It can't be plain dead! Don't sweat it too much. I have lots of VCB02 board sets and can send you whatever you end up needing. Bear in mind that, on a KA630, it can take quite awhile for anything to come up on the display. Here's the LED definitions for the VCB02: During test: 111 state on power-up 001 power-up test in progress After test: 000 no faults detected 001 VCB02 base module fault 010 first VCB02 4-plane module fault 011 second VCB02 4-plane module fault 100 not used 101 keyboard fault 110 mouse or tablet fault 111 catastrophic fault -Dave -- Dave McGuire, AK4HZ New Kensington, PA -- DECtec mailing list http://dectec.info To unsubscribe from this list see page at: http://dectec.info/mailman/listinfo/dectec_dectec.info -- DECtec mailing list http://dectec.info To unsubscribe from this list see page at: http://dectec.info/mailman/listinfo/dectec_dectec.info