[time-nuts] 2 out of 3 bad 5680As?

paul swed paulswedb at gmail.com
Tue Feb 28 18:06:34 UTC 2012


Oh yes the send button has a way of getting you to organize your thought
process.
Glad to hear bad wire though no idea how that actually happens.
Regards
Paul.

On Tue, Feb 28, 2012 at 12:14 PM, Bob Camp <lists at rtty.us> wrote:

> Hi
>
> It's amazing how often the key element in any troubleshooting procedure is
> -
> stop, put everything down, take a deep breath, get a cup of coffee, think
> about it for a while. I've seen people go for weeks without executing this
> very important step.
>
> Bob
>
> -----Original Message-----
> From: time-nuts-bounces at febo.com [mailto:time-nuts-bounces at febo.com] On
> Behalf Of Dave hartzell
> Sent: Tuesday, February 28, 2012 12:43 AM
> To: Discussion of precise time and frequency measurement
> Subject: Re: [time-nuts] 2 out of 3 bad 5680As?
>
> Bill,
>
> Yes, +5v....  but I was doing it incorrectly (bad hookup wire on both
> units).  I haven't checked the second "bad" unit, but it will probably
> work now too.
>
> Sometimes I have to hit the "send" button before I find my errors.
>
> Thanks for the thoughts,
>
> Dave
>
> On Mon, Feb 27, 2012 at 10:31 PM, WB6BNQ <wb6bnq at cox.net> wrote:
> > Hi Dave,
> >
> > A silly question, although you did not indicate, you are supplying a
> separate 5
> > volts to the unit are you not ?
> >
> > Bill....WB6BNQ
> >
> >
> > Dave hartzell wrote:
> >
> >> Hello,
> >>
> >> I have two units that don't produce any output and the lock pin floats
> >> around +2.3 volts continuously.  The +15v load starts at about 1.8A
> >> and drops down to about 0.7A on both units, but I never get a +5V or
> >> 0V on the lock or a 10MHz out signal.  (I'm not using an LED on the
> >> lock pin, just a high-impedance DVM.)
> >>
> >> I'm relatively confident in my connection setup, since I do have one
> >> unit that works "as advertised".  In fact, one of the bad units was a
> >> replacement from nichegeek, received about three weeks after the
> >> original first order of two units (from Amazon.com instead of China).
> >>
> >> Sorry if this is covered somewhere, but I couldn't find my symptoms on
> >> the list...  any thoughts are appreciated.
> >>
> >> Thanks,
> >>
> >> Dave
> >>
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