[time-nuts] Symmetricom experts?

Lists lists at g1fef.co.uk
Wed Sep 30 11:21:29 EDT 2015


Thanks to all who replied. Turns out it was the cap in the PSU (3,300uF 10v). I replaced it with a 3,300uF 16v and all seems well.

It was a bit strange because I had already checked the PSU with a multimeter and all rails read fine. It wasn’t until I put a ‘scope on the supply rails out of interest that I noticed the 5v rail had a massive high freq ripple on it (I guess from the switch mode osc).

Anyway it’s back up and running now.

Thanks again,
Chris


> On Thu, Sep 24, 2015 at 1:21 AM, G1FEF <lists at g1fef.co.uk> wrote:
> 
>> Do we have any Symmetricom experts on this list?
>> 
>> I've had a Symmetricom Syncserver S200 GPS+PPS with rubidium clock running
>> for several years until we had a power cut and the UPS battery failed, on
>> powering back up it won't boot at all.
>> 
>> I suspect the flash is corrupt but they protect it in some way, so one
>> can't just copy the o/s onto a new card, and the company want ££££'s to fix
>> it for me!
>> 
>> Thanks in advance,
>> Chris
>> 
>> 
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