[time-nuts] SRS SR620 counter problem

J. Forster jfor at quik.com
Mon Oct 25 23:32:45 UTC 2010


Certainly could be, but it seems a reasonable first thing to check before
tearing into the unit.

FWIW,
-John

==============bv

> I expect that it is a Lithium cell, so the voltage is correct. Although,
> testing it with a 1K load may not be fair as in real service I believe
> they
> only provide microamps. Regards - Mike
>
> Mike B. Feher, EOZ Inc.
> 89 Arnold Blvd.
> Howell, NJ, 07731
> 732-886-5960 office
> 908-901-9193 cell
>
> -----Original Message-----
> From: time-nuts-bounces at febo.com [mailto:time-nuts-bounces at febo.com] On
> Behalf Of J. Forster
> Sent: Monday, October 25, 2010 7:18 PM
> To: Discussion of precise time and frequency measurement
> Subject: Re: [time-nuts] SRS SR620 counter problem
>
> What's the battery nominal voltage supposed to be?
>
> -John
>
> ==========
>
>
>> Hi everyone!
>>
>> My SR620 is giving me an error 3 on power up. The manual says it's most
>> likely a dead backup battery.
>>
>> I can clear it if I hold down the reset button while powering up. (This
>> loads the factory defaults into the RAM.)
>>
>> However if I cycle power the error 3 comes back!
>>
>> The battery reads 3.44VDC and at the VCC pin of the Ram you get 3.20VDC
>> with the AC power off.
>>
>> This seems to indicate the battery is good.
>>
>> I'm thinking of placing a 1K resistor across the battery to see if a
>> load
>> will cause a big drop.
>>
>> Any suggestions?
>>
>> The RAM is a CXK58257AP-70L.
>>
>> Thanks,
>>
>> Corby Dawson
>> ____________________________________________________________
>> SHOCKING: 2010 Honda Civic for $1,734.09
>> Is this price real? YES! We reveal the TRUTH!
>> http://thirdpartyoffers.juno.com/TGL3141/4cc60781dcc8a5aca4m04duc
>>
>> _______________________________________________
>> time-nuts mailing list -- time-nuts at febo.com
>> To unsubscribe, go to
>> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
>> and follow the instructions there.
>>
>>
>
>
>
> _______________________________________________
> time-nuts mailing list -- time-nuts at febo.com
> To unsubscribe, go to
> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
> and follow the instructions there.
>
>





More information about the time-nuts mailing list