[time-nuts] SR620 Failure Code.

Bob Camp kb8tq at n1k.org
Thu Dec 22 14:10:22 EST 2016


There are a number of SRS 620’s with big block letter warning sheets taped to the top
of them about error 34. It is a *very* common thing to run into and (obviously) something
the guys in the repair shop get tired of really fast.


> On Dec 22, 2016, at 1:27 PM, Magnus Danielson <magnus at rubidium.dyndns.org> wrote:
> Rick,
> On 12/22/2016 05:53 PM, W2GPS wrote:
>> Time-nuts,
>> My SR620 has started reporting "test error 34" on power-up and will do
>> nothing after that. Does anyone know what that message means? I have a
>> reasonable lab and I would try to repair the unit myself but I have no
>> documentation. Is service documentation available or should I just ship it
>> back to Stanford Research to get fixed?
> The manual, which you can download for free from SRS, says (page 57):
> "If the UHF prescaler of channel A is selected when
> the unit is powered off and then on again, the unit
> will display “TEST ERROR 34”. This error may be
> corrected by deselecting the UHF of channel A. To
> run this procedure, press input button of channel
> “A” until UHF is not highlighted. Then turn the
> power off and on again."
> So RTFM and execute accordingly might be all that you need to do.
> Best Regards,
> Magnus
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