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

Edgardo Molina xe1xus at amsat.org
Wed Nov 14 05:44:39 UTC 2012


Thanks again Tom! I will wait for your feedback.

Cheers!



Edgardo Molina
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On Nov 13, 2012, at 11:41 PM, Tom Knox <actast at hotmail.com> wrote:

> 
> Hi Edgardo;
> I have been looking for a part number and source. There was a part number posted but it was for the 34401A which is slightly different. I will post price and availability if I find them.
> Best Wishes;
> Thomas Knox
> 
> 
> 
>> From: xe1xus at amsat.org
>> Date: Tue, 13 Nov 2012 21:37:08 -0600
>> To: time-nuts at febo.com
>> Subject: Re: [time-nuts] HP-53132A Faded and flickering display
>> 
>> 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
>> 
>> 
>> 
>> Información anexa:
>> 
>> 
>> 
>> 
>> CONFIDENCIALIDAD DE INFORMACION
>> 
>> Este mensaje tiene carácter confidencial. Si usted no es el destinarario de este mensaje, le suplicamos se lo notifique al remitente mediante un correo electrónico y que borre el presente mensaje y sus anexos de su computadora sin retener una copia de los mismos. Queda estrictamente prohibido copiar este mensaje o hacer usode el para cualquier propósito o divulgar su en forma parcial o total su contenido. Gracias.
>> 
>> 
>> NON-DISCLOSURE OF INFORMATION
>> 
>> This email is strictly confidential and may also be privileged. If you are not the intended recipient please immediately advise the sender by replying to this e-mail and then deleting the message and its attachments from your computer without keeping a copy. It is strictly forbidden to copy it or use it for any purpose or disclose its contents to any third party. Thank you.
>> 
>> 
>> 
>> 
>> 
>> 
>> 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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