I have a 2100 I'll see if my EPROM programmer still works and try and download the EPROMS to a .HEX file and If I can do that i'll send them along to Didier and Brooke so they can be hosted for posterity.
- Scott P.S. Does anyone have the part number for the 24V cannon connector on the 2100 On Fri, Oct 17, 2008 at 2:14 PM, Brooke Clarke <[EMAIL PROTECTED]> wrote: > Hi Skip: > > I used the HP signature analyzer and found a bad data bus buffer chip is short > order. I'm sure it would also identify a bad EPROM chip. > > Have Fun, > > Brooke Clarke > http://www.prc68.com/P/Prod.html Products I make and sell > http://www.prc68.com/Alpha.shtml All my web pages listed based on html name > http://www.PRC68.com > http://www.precisionclock.com > http://www.prc68.com/I/WebCam2.shtml 24/7 Sky-Weather-Astronomy Web Cam > > Skip Withrow wrote: >> Hello Time-Nuts, >> >> Well, my Austron 2100 seems to have bit the dust. The indication of trouble >> is that the 1pps light quit blinking. After some debug it appears that all >> the hardware is working (I have the manual with schematics) and that it is >> not getting a software pulse that diddles a flip-flop. >> >> There are some software diagnostic routines in the box. The RAM test runs >> fine, but it appears that I get an error on the EPROM test. The test >> generates an E-20 error. The book states that if the EPROM test fails it >> will give an E-21, but nowhere do I find any hint as to what an E-20 error >> is. >> >> I suspect that perhaps I have a corrupted EPROM. Most of the code appears >> to be working properly (front panel display and buttons work, it will even >> lock to Loran). There are three 2732A EPROMS, but no indication as to the >> checksum on the devices so can't verify if one is bad. >> >> Is there a time-nut out there with an Austron 2100? I would like to get a >> copy of the EPROMS or the code in them to check my unit. Even the checksums >> would help (given that the firmware revision is the same). The boards are >> very easily accessed from the front panel and the unit doesn't even have to >> be taken out of the rack. I have the capability to read and program the >> devices. >> >> Thanks in advance for any help with this oldie, but (was) goodie. >> >> Skip Withrow >> >> >> >> _______________________________________________ >> 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.
