Fantastic, just what I needed. Thank you! On Sun, Aug 16, 2015 at 9:16 PM, Magnus Danielson < [email protected]> wrote:
> Ole, > > I checked with a former Pendulum employee, and free off memory, he > recommend trimming up the 100 MHz until Error 2 does not show. Sensing it > directly can be difficult, FET-probe essentially mandatory. Indirectly a 10 > MHz is possible. A problem is that trimming with the hood off causes a > different thermal setup than when the hood is on. If you dare, make a hole > in the hood so that you can trim it with the hood on, that is what they did. > > CMOS backup battery eventually fails, and then you need to replace it and > re-calibrate it. I have the details jotted down, but it seems that this is > not your issue. > > Cheers, > Magnus > > > On 08/16/2015 12:20 PM, Ole Petter Ronningen wrote: > >> Hello. >> >> I have a Fluke PM6681 that has issues. When I got it, it gave results all >> over the place, but after adjusting the 100Mhz multiplier-chain, it seems >> to be much better; at least I get std.deviationwell within spec using a >> split pulse to input A and B, 100 samples. I'd like to get it >> professionally calibrated, but I don't want to send it in with known >> issues >> - the cost of calibration will not be refunded if the instrument can not >> be >> calibrated, and I believe it is no longer repairable. >> >> So, the issue is that it fails the ASIC test (test 6), with err 2.The >> service-guide lists a number of signals to be checked in test-mode, but I >> am not able to see any of them. Since the counter seems to function, I can >> only conclude that the signals are not present due to this error.. (Or >> that >> I am mistreading the guide and looking in the wrong place, probably at >> least as likely..) >> >> Anyway, I cant seem to find a description of this particular error, does >> anyone know what it means? >> >> Thanks, >> Ole >> _______________________________________________ >> time-nuts mailing list -- [email protected] >> To unsubscribe, go to >> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >> and follow the instructions there. >> >> _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
