[time-nuts] Datachron, Inc.

J. Forster jfor at quik.com
Thu Jun 25 21:21:40 EDT 2009

Are you sure you are really feeding it IRIG-B? You might try looking at
your TC signal with a 'scope and seeing if it meets the IRIG spec.

Such a test would bisect the problem.



> Hi guys,
> What happened to Datachron?  I'm trying to dig up a manual for an IRIG-B
> display, Datachron model 3700-205 that I just picked up on eBay:
> http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=290323873289
> It came in today and powers up, and looks just like it does in the
> pictures.  Doesn't seem to do anything more than that, either!   I'm
> trying
> to drive it using NMEATime software.  It seems that no matter what
> amplitude
> I'm using, the display does nothing.  I reseated all IC chips, wiggled
> connectors, the standard sort of thing.  No change.   Datachron appears to
> have gone out of business, but I'm hopeful that somebody just bought them,
> changed their name, and has a hidden supply of manuals somewhere.
> Thanks,
> Bob, N3XKB
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