[time-nuts] PM6685 GPIB PROM image ?

Claudio claudio.girardi at virgilio.it
Mon Aug 27 08:18:28 UTC 2012

Yes, I'm finishing rebuilding the PM6685 from a couple of part units, 
then I'll try to use the GPIB card as is, but since the service manual 
specifies clearly that the GPIB ROM FW version must match the mainboard 
ROM FW version I do not expect it to work, as the current GPIB ROM is 
clearly marked "9626/80 V1.12C", so it is likely specific for the 6680 
and there is probably a SW check for the correct ROM version at power-


>----Original Message----
>From: azelio.
boriani at screen.it
>Date: Aug 27, 2012 12:07 AM
>To: "Discussion of 
precise time and frequency measurement"<time-nuts at febo.com>
>Subj: Re: 
[time-nuts] PM6685 GPIB PROM image ?
>First try if it works as it is.
>On Sun, Aug 26, 2012 at 11:24 PM, Claudio Girardi <
girardi at virgilio.it> wrote:
>> Hello,
>> I have a GPIB option card 
(PM9626) from a PM6680 and I would like to use
>> it in a PM6685.
Looking at the service manuals, the only difference between the two 
>> cards for the two counters is the FW PROM, so I'm looking for a 
>> PROM image or anybody with a PM6685 that could help with 
>> Thanks!,
>>   Claudio

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