Thanks again Tom! I will wait for your feedback. Cheers! 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 13, 2012, at 11:41 PM, Tom Knox <actast@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@amsat.org >> Date: Tue, 13 Nov 2012 21:37:08 -0600 >> To: time-nuts@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@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 >>>> >>>> >>>> _______________________________________________ >>>> time-nuts mailing list -- time-nuts@febo.com >>>> To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >>>> and follow the instructions there. >>> >>> -- >>> timeok >>> >>> _______________________________________________ >>> time-nuts mailing list -- time-nuts@febo.com >>> To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >>> and follow the instructions there. >> >> _______________________________________________ >> time-nuts mailing list -- time-nuts@febo.com >> To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >> and follow the instructions there. > > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there.

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 > > > > 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@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 >>> >>> >>> _______________________________________________ >>> time-nuts mailing list -- time-nuts@febo.com >>> To unsubscribe, go to >>> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >>> and follow the instructions there. >> >> -- >> timeok >> >> _______________________________________________ >> time-nuts mailing list -- time-nuts@febo.com >> To unsubscribe, go to >> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >> and follow the instructions there. > > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. -- timeok

Dear Edgardo, On 14/11/12 04:37, Edgardo Molina wrote: > 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. It seems like you need to do what I did, go to the agilent site and download the manuals. Operations and Programming manuals is easy, there is then a service manual and component-level manual. The programming manual should assist you on turning of the screen. The component level manual does not detail the power-supplies. Did anyone here analyse the analogue interpolators of the 53131/53132? It's a relative simple design being used with a single transistor and charging a cap and then read from an ADC. The ADC reference voltages can be calibrated from a DAC. Notice that there exists two versions of the main board, for each of the models and that they have different schematics set in the same manual. Cheers, Magnus

Hi If you go shopping for a parts donor, a 53181 is probably going to be much cheaper. Most of the parts that burn out are common between the models. Bob On Nov 13, 2012, at 10:37 PM, Edgardo Molina <xe1xus@amsat.org> wrote: > 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@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 >>> >>> >>> _______________________________________________ >>> time-nuts mailing list -- time-nuts@febo.com >>> To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >>> and follow the instructions there. >> >> -- >> timeok >> >> _______________________________________________ >> time-nuts mailing list -- time-nuts@febo.com >> To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >> and follow the instructions there. > > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there.

Am 14.11.2012 06:41, schrieb Tom Knox: > 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 > > > Hi Edgardo, I bought my used hp-53132A from a local surplus dealer together with a new spare display, because the display was as well already grey-shaded. It looks like this is a well known issue on vaccuum fluorescence displays, because the previous owner was prepared and had some spares in their stock. The spare display is manufactured by the japanese company 'itron' and has the item no. 'CC1187G' on the backside. I was very lucky to get both together for a reasonable amount. It does look to be problem now to find such spares, the only company I found having that part number listed in internet is chip-sale dot com. (this does not look to be cheap ...) I was not able to find this number at http://www.noritake-itron.com. Sorry that I do not have better information, perhaps other groop members do find a way with this part number. good luck, Arnold

Thanks Arnold the more information on this issue the better. I will take a look at your links. 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 14, 2012, at 11:58 AM, Arnold Tibus <arnold.tibus@gmx.de> wrote: > Am 14.11.2012 06:41, schrieb Tom Knox: >> 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 >> >> >> > Hi Edgardo, > > I bought my used hp-53132A from a local surplus dealer together with a > new spare display, because the display was as well already grey-shaded. > It looks like this is a well known issue on vaccuum fluorescence > displays, because the previous owner was prepared and had some spares in > their stock. > The spare display is manufactured by the japanese company 'itron' and > has the item no. 'CC1187G' on the backside. > I was very lucky to get both together for a reasonable amount. > It does look to be problem now to find such spares, the only company I > found having that part number listed in internet is chip-sale dot com. > (this does not look to be cheap ...) > I was not able to find this number at http://www.noritake-itron.com. > Sorry that I do not have better information, perhaps other groop members > do find a way with this part number. > good luck, > > Arnold > > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there.

On 11/14/2012 06:58 PM, Arnold Tibus wrote: > Am 14.11.2012 06:41, schrieb Tom Knox: >> 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 >> >> >> > Hi Edgardo, > > I bought my used hp-53132A from a local surplus dealer together with a > new spare display, because the display was as well already grey-shaded. > It looks like this is a well known issue on vaccuum fluorescence > displays, because the previous owner was prepared and had some spares in > their stock. > The spare display is manufactured by the japanese company 'itron' and > has the item no. 'CC1187G' on the backside. The HP manual I have lists DS29 as CP3033A 0950-2327 on the schematic sheet and PC assembly list as Samsung INB-12MM53T with Agilent P/N 5040-0023. That should add to the search list of replacements. Cheers, Magnus