[time-nuts] Z3816A Control and Cleaning
J. L. Trantham
jltran at att.net
Fri Jan 24 13:38:45 UTC 2014
All,
I got up this AM to a nice collection of responses and information. Thanks
to all.
Glenn, thanks for the Tek Scope article.
Hal, I think that is the command I remember. I was searching under Z3816A,
not Z3801A. I'll give it a try.
Perhaps I was not clear about 'soap'. What I was planning was dish
detergent. I can choose either regular dish detergent or dish washer
detergent. Any preference? These are not the same. Any guess as to how I
know this?
I'll report back after further effort. Now, off to work.
Thanks again.
Joe
-----Original Message-----
From: time-nuts-bounces at febo.com [mailto:time-nuts-bounces at febo.com] On
Behalf Of Glenn Little
Sent: Friday, January 24, 2014 1:00 AM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] Z3816A Control and Cleaning
Tektronix used to clean their oscilloscopes in a soap and water bath in
something like a dish washer.
This was published in Tek Scope V4 #4 July 1972.
Glenn
WB4UIV
At 10:13 PM 1/23/2014, you wrote:
>Joe
>Been a while. Sounds like a reasonable approach with the soap and water.
>The key is not to force water into the inductors. I take soapy water
>and a tooth brush it works wonders. Then dry in an oven at about 100
>degrees just to drive off the moisture. Very gentle.
>I guess the other point is to get a better feel for the gunk. Does soap
>and water do it. The fact that IPA didn't is interesting. It may be oil
based.
>Good luck
>Paul
>WB8TSL/1
>
>
>On Thu, Jan 23, 2014 at 9:41 PM, J. L. Trantham <jltran at att.net> wrote:
>
> > I recently acquired a Z3816A as a 'spare' and it does not work reliably.
> > The ALARM LED sometimes comes on and sometimes doesn't. Sometimes
> > it tracks and locks appropriately and other times it goes into
> > HOLDOVER. The main PCB is very dirty and has the appearance that it
> > has been in a humid and dusty environment. I am suspicious that
> > there are some 'leakage' issues related to this dirt and would like
> > to wash the board. What would the group recommend for cleaning the
> > board? I sprayed it with 91% IPA and used a paint brush to try to
> > clean the board. Some improvement but still dirty.
> > I
> > was thinking of warm soapy water with a paint brush followed by warm
> > water followed by 91% IPA followed by a hairdryer then an hour or
> > two in an oven at about 100 to 150 degrees F. Thoughts? I'm a bit
> > concerned about the inductors and the possibility of water leading to
problems with them.
> >
> >
> >
> > Also, I seem to recall a command that can be sent by SatStat to
> > change from GPS time to UTC time but I can't find it in my files.
> > Is there such a command or am I hallucinating?
> >
> >
> >
> > Thanks in advance.
> >
> >
> >
> > Joe
> >
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