I tested both 1281 since they are running different FW 1281 #1 FW 3.02 All four tests produced the same error when the cable was disconnected at the DCV, AC assy, Ohms assy, and Current assy.
9005 Serial Interface Fault 00150C 03 1281 #2 FW 3.11 Different error than above but it is the almost the same on all four tests. 9005.9 Ponntru/compl 00173A The DCV was slightly different at: 9005.9 Pon tru/compl 00173A. One interesting note is that on one meter the readout can give repeated characters if upside-down. But once it is right side up, the display is fine. The only thing that comes to mind is the EPROMs are failing. I plan on upgrading both soon so I can try it again. Todd On Thu, Apr 14, 2016 at 5:21 PM, Todd Micallef <[email protected]> wrote: > I will get it this evening. Hope to be finished with work within the next > couple of hours. > > > On Thursday, April 14, 2016, Bert Kachler <[email protected]> wrote: > >> Hi Todd and ??, >> >> thanks for your answers! >> I think it is a good suggestion to >> try to see first whether the Eproms are intact. Firmware is >> Version 3.11 and I have ordered new EProms to put >> a copy of the 3.11 firmware on them, the one >> from https://xdevs.com/fix/d1281/#manual . >> I will fire up my programmer the moment they arrive. >> >> What makes me ponder is that there were suddenly apparently >> two errors after a couple of month's inactivity. >> If two errors appear out of the blue more or less at the same >> time, IMHO it is likely that there is a common reason. >> Hence first the Eprom test. Then perhaps the voltages, >> I still need to figure out what they are supposed to be >> at the test points of the undocumented digital board. >> >> (I am not sure >> whether the NVRAM error came exactly at the same first turn-on >> as the "9005.7 No Rtx 001B42" error, because it >> flashes only briefly and I might have overlooked it at first. >> I only noticed it after a few subsequent turn ons, when I tried >> to made a picture to the "9005.7 No Rtx 001B42" error display.) >> >> Assuming that nothing of the above works, which is likely, >> then there is still the main question of what the "secondary" part of the >> NVRAM is supposed to be. If it happens just a secondary backup copy >> of the whoke memory, then there might be a chance to >> correct it (like for Solartron 7081 which does keep 2 copies of the data). >> >> I keep you posted. Thanks for your help. >> >> Cheers, >> Bert >> >> >> _______________________________________________ >> volt-nuts mailing list -- [email protected] >> To unsubscribe, go to >> https://www.febo.com/cgi-bin/mailman/listinfo/volt-nuts >> and follow the instructions there. >> > _______________________________________________ volt-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/volt-nuts and follow the instructions there.
