[time-nuts] (no subject)
Bob Camp
lists at rtty.us
Sun Jun 20 16:04:55 UTC 2010
Hi
No nothing would suggest a power supply to me. I'd certainly check all the power and ground pins right up front.
Bob
On Jun 20, 2010, at 9:53 AM, Robert Benward wrote:
> Steve,
> I was looking for insight. For instance, is there a power up sequence for
> the +5 & +12V? Anything I can look at before I dive in to the can?
>
> This is not the first HP oscillator I have that has gone dead on me. I have
> a 10811 that went south on me a few years back. This is just getting
> expensive to replace them when they go bad.
>
> And yes, if there is someone out there that can do it, I would consider
> sending it out for repair. I'm an electrical engineer, but I also know my
> limitations, and although it would grate at me to send it out for repair, it
> would be the right thing to do (if the price is right)
>
> Bob
>
>
> ----- Original Message -----
> From: Steve Rooke
> To: Discussion of precise time and frequency measurement
> Sent: Sunday, June 20, 2010 1:03 AM
> Subject: Re: [time-nuts] (no subject)
>
>
> Well, if your not prepared to open it up to fix it yourself, are you
> looking for someone else to fix it for you (your postings need
> clarifying)?
>
> Steve
>
> On 20 June 2010 16:23, Robert Benward <rbenward at verizon.net> wrote:
>> Adrian,
>> I have all this stuff. I really don't want to open this thing up, and my
>> oscillator trouble shooting skills are not that great.
>>
>> Bob
>>
>>
>> ----- Original Message -----
>> From: Adrian
>> To: Discussion of precise time and frequency measurement
>> Sent: Saturday, June 19, 2010 11:10 PM
>> Subject: Re: [time-nuts] (no subject)
>>
>>
>> Bob,
>>
>> guess you know that detailed documentaion is available here:
>> http://www.prc68.com/I/HPE1938.shtml
>> http://www.leapsecond.com/museum/e1938a/
>> Open the can and report back!
>>
>> Adrian
>>
>>
>> Robert Benward schrieb:
>>> All,
>>> Anybody out there know how to fix an E1938 oscillator? Something in
> the
>>> metal can has crapped out. No 10MHz, and in turn, no processor action.
>> It
>>> worked a few months ago, turn it on today, and worked after about an
>> hour.
>>> Turned it on again this evening and nothing. I would hate to take that
>>> crystal/heater assembly apart.
>>>
>>> Bob
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>>
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>
>
> --
> Steve Rooke - ZL3TUV & G8KVD
> The only reason for time is so that everything doesn't happen at once.
> - Einstein
>
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