[time-nuts] SRS SR620 counter problem
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.
> 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
> 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?
>> 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
>> will cause a big drop.
>> Any suggestions?
>> The RAM is a CXK58257AP-70L.
>> Corby Dawson
>> SHOCKING: 2010 Honda Civic for $1,734.09
>> Is this price real? YES! We reveal the TRUTH!
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