[time-nuts] HP-53132A Faded and flickering display

[Timeok]

Hi Edgardo,all,

the command to blank the display you can find:

http://cp.literature.agilent.com/litweb/pdf/53131-90044.pdf

page 3-36


Disable display:
:DISPlay:ENABle OFF (See Note below.)

Note: This value is not stored on Save and is not part of the 
non-volatile state.


Hope this command will be implemented in Timelab soon.

Luciano



Il 2012-11-14 04:37 Edgardo Molina ha scritto:
> Dear Azelio, Tom, John and Luciano ( I hope I am not missing 
> anybody),
>
> Thank you all of you for your kind advise on this subject. I am sorry
> I was unable to reply in a timely manner. I had to leave town for a
> week for new IT business. I think I will start by dismantling the 
> unit
> display and test the tantalum capacitors as you mentioned. If I can
> achieve success by doing this it is fine. Otherwise I could consider
> using it as the GPIB workhorse as I just started to obtain my first
> ADEV, MDEV and TDEV graphs with TimeLab and a Prologix adapter. May I
> know the command for turning the display off via the GPIB port? That
> is something nice for long periods of sampling.
>
> A whole new world has just opened to me. Know I am starting to get
> intimate with my frequency standards by knowing them in deep. If all
> goes well I should start updating my wish list for a Wavecrest DTS
> unit next year. For now I will squeeze every single Tau value from 
> the
> graphs using the 53132A.
>
> Last but not least. If the display fades away I could eventually
> consider buying a new one as the whole instrument is in pristine
> condition and would be a shame to see it working without a brilliant
> display.
> Thank you for all your feedback.
>
> Wishing you all a pleasant evening/morning.
>
>
> Kind regards,
>
>
>
> Edgardo Molina
> Dirección IPTEL
>
> www.iptel.net.mx
>
> T : 55 55 55202444
> M : 04455 10045822
>
> Piensa en Bits SA de CV
>
>
>
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>
>
>
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> On Nov 4, 2012, at 8:27 AM, Timeok <timeok at timeok.it> wrote:
>
>> Hi all,
>>
>> to avoid more display "consumption" during long acquisitions, there 
>> is an HPIB command to blank the display on the counter. I have asked 
>> to KE5FX to add this feature in Timelab during the acquisition setup. 
>> Hope he have time to do this.
>>
>> Luciano
>>
>>
>>
>> Il 2012-11-02 23:13 John Lofgren ha scritto:
>>> <- snip ->
>>>
>>> Two possibilities: Cathode poisoning or bad tantalum caps.  I'm not
>>> sure if "cathode poisoning" is really the correct term for this
>>> effect, but it's similar.  There have been a number of tutorials 
>>> out
>>> there about rejuvenating VF displays.
>>>
>>> <- snip ->
>>>
>>> It appears that the military parts system has the EL displays 
>>> listed
>>> for replacement purposes.
>>> http://www.wbparts.com/rfq/5980-01-396-4645.html
>>> 
>>> http://www.iso-group.com/Public/PartDetail/CP3033A/12619547/12619547.aspx
>>>
>>> Should the display prove to be beyond recovery it might be possible
>>> to buy a new one.  Now, the cost may be another matter ...
>>>
>>> These are made by Noritake-Itron.  The generic part number is
>>> CP3033A, but it does not show up in their product line on their web
>>> site.  It might be worth contacting them to see if there's any
>>> possibility of still getting them.
>>> http://www.noritake-elec.com/contact_us.htm
>>>
>>> Searching for Itron CP3033A turns up some parts brokers that claim 
>>> to
>>> have access to 251 of them.
>>>
>>> -John
>>>
>>>
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>>
>> --
>> timeok
>>
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-- 
timeok