Re: I'm officially lost now with this 8753ES
To help me in my fault isolation efforts, Pete Manfre has offered to mail me a new, never used 08753-60162 A11 PLL board.? (Thank You Pete!)
This will help immensely.? The trouble with the HP troubleshooting guide is that problems can be subtle and fall between the cracks where their only suggestion is to try replacing subassemblies with known good ones.? One example is the 1 V/GHz waveform; if the shape matches the image shown but is slightly offset is that a pass or a fail?? Another is the output level; if it's supposed to be 0 dBm and it's actually -7 dBm is something wrong?? It can be adjusted to spec and still be set to beyond instrument max output, so is that a problem or is it ok?
If you work on a certain type of instrument all the time your experience fills in these questions the service guide leaves unanswered.
Regarding the A3 source PCB, I see that it has two 12 bit DACs and a quad 8 bit DAC.? It also has OC drivers for the switchable attenuator that is an option in the 8753ET.? Does anyone know what all those DACs are used for?? The coild drive for the YTO comes from the A11 board, so all that's left are the FM coil on the YTO and the tune input for the 3.8 GHz cavity oscillator.? What am I missing?
Peter
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On 3/16/2019 10:28 PM, pianovt via Groups.Io wrote: The schematic is for 08753-60162, so it matches what you have. I would monitor the voltage across R43 (the 40 Ohm power resistor) as you tune the YTO. It should be a fairly linear function of frequency with some d.c. offset.
As far as I know, the A3 source board schematic has never been published in a CLIP. I once saw it, and to my eye it didn't look nice enough for official publication. It was probably just good enough to extract the netlist and lay out the board. I suspect they never intended to publish it, so they didn't spend the money on making it look nice.
Vladan
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Can't seem to find a way to alter the behavior of NI Max. However, I did find that I can write w/o issue (example: sending DR HELLO puts "HELLO" on the display) and I can write/read if I wait for the timeout error. (sending ID is fine, but times out on READ, even though it eventually returns the model number)
I also have an HP 11713A Attenuator/Switch Driver that does not respond to IDN? but does not error out either.
My conclusion is that the 5385 is acting as it is designed but apparently NI Max doesn't work well with this instrument.
regards,
Mark
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Re: HP8563 HV supply repair
Hello,
?
Just a short update. All components except the transformer removed. It was fairly easy to remove the goop, but no chemicals would do the trick (not even silicone remover) so I ended up with a scalpel for a few hours. The HV cables was pulled from the goop in order not to damage the insulation with the scalpel. It seems to have worked well. Desoldering the components was also fairly easy, but beware of sticky goop. One diode got a leg bent since I pulled it while the body still was held to the board by the goop. The following components, I made sure to remove as much of the goop as was possible!?
Testing forward voltage of the high voltage diodes showed something like 6.0 V at 20 uA. Hope this is normal since all of them showed the same value. With a bit of luck I'll get hold of a high voltage source to test the caps and reverse voltage of the diodes this week.?
Likewise, hope to borrow a signal source to test the transformer. Now that all components are desoldered, there is no load so voltage could probably swing quite a bit. I was thinking about loading just one of the output windings to calm it down a bit.?
?
Is this a reasonable way or may there be any catch? The output windings are 110 V (low voltage), 100 and 6 V (coupled and offset by the HV winding) and 2.45 kV (roughly - HV winding at least). Does anyone know the current of the 8563 CRT Filament/heater? Just connecting a resistor on the 6 V would be the simplest solution I guess - provided it is OK to load just one of the windings. Apart from the?+9 kV output, I would guess this is the one loading the transformer the most?
?
I'm attaching a few pictures. They are annotated to give some info on what they are showing. Just noticed that the previous pictures I attached didn't display in order. The "IMG_" part in the filename should indicate the order.
?
Regards,
? Staffan
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Re: I'm officially lost now with this 8753ES
Thank you soooo much. Really appreciate it.?
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On Sun, Mar 17, 2019 at 01:49 AM, Yves Tardif wrote:
Hi I have the original CLIP manual for 8753D and I have done a PDF and uploaded at ?
To download ?
?
Regards
Yves
De?: [email protected] <[email protected]> De la part de Colby Burkett
·¡²Ô±¹´Ç²â¨¦?: 16 mars 2019 21:41
??: [email protected]
Objet?: Re: [HP-Agilent-Keysight-equipment] I'm officially lost now with this 8753ES
?
It's available on eBay listed as 8753D CLIP. I bought mine that way. Artek doesn't seem to have it.
Not sure if the eBay seller is licensed to sell it or not, but it's been years since I bought, and it's still listed by the same seller.
?
On Sat, Mar 16, 2019, 6:07 PM Peter Gottlieb <hpnpilot@...> wrote:
Thanks.? I've been working off of the 8753B CLIP, not too much has seemed to
have changed.? What is the part number for A11 in the 8753D?? In my ES it is
08753-60162.
What I'm seeing is that the YTO is over 200 MHz too high on the lower
frequencies (under say 1-1.5 GHz) so the test 48, generate proper pretune
voltages, fails.? The output at P1-1 to P1-2 is somewhat higher at the low end
than the manual shows, being 4.0 volts in mine vs. 3.5 volts stated in the
manual.? U18-6 voltages (not shown on the schematic shown below), out of the
DAC, look good.? The drive signal from A11 is current rather than voltage so a
slight difference could be attributed to tolerance of my YTO coil resistance
(45.2 vs. 44.4 ohms?? Not enough for that difference).? I also tried swapping
the YTO for another and the replacement behaved exactly the same.
The instrument PLL locks nicely when using an external source.
Where did you find the CLIP you sent?? I'd like to see the rest of the A11
board, and maybe more, as it may be closer than the A/B CLIP I have.? And I'd
*love* to see a CLIP for the A3 source PCB!
Peter
On 3/16/2019 8:42 PM, pianovt via Groups.Io wrote:
> Maybe this will be helpful. It's from the 8753D, but should be the same for
> the ES.
>
> Vladan
>
>
>
>
|
Re: I'm officially lost now with this 8753ES
Thank you Yves, that's fantastic!
Peter
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On 3/17/2019 1:49 AM, Yves Tardif wrote:
Hi I have the original CLIP manual for 8753D and I have done a PDF and uploaded at
To download Agilent 8753D Network Analyzer Service Manual-8753DCLIPmanual.pdf <>
Regards
Yves
*De?:*[email protected] <[email protected]> *De la part de* Colby Burkett
*·¡²Ô±¹´Ç²â¨¦?:* 16 mars 2019 21:41
*??:* [email protected]
*Objet?:* Re: [HP-Agilent-Keysight-equipment] I'm officially lost now with this 8753ES
It's available on eBay listed as 8753D CLIP. I bought mine that way. Artek doesn't seem to have it.
Not sure if the eBay seller is licensed to sell it or not, but it's been years since I bought, and it's still listed by the same seller.
On Sat, Mar 16, 2019, 6:07 PM Peter Gottlieb <hpnpilot@... <mailto:hpnpilot@...>> wrote:
Thanks. I've been working off of the 8753B CLIP, not too much has seemed to
have changed.? What is the part number for A11 in the 8753D?? In my ES it is
08753-60162.
What I'm seeing is that the YTO is over 200 MHz too high on the lower
frequencies (under say 1-1.5 GHz) so the test 48, generate proper pretune
voltages, fails.? The output at P1-1 to P1-2 is somewhat higher at the low
end
than the manual shows, being 4.0 volts in mine vs. 3.5 volts stated in the
manual.? U18-6 voltages (not shown on the schematic shown below), out of the
DAC, look good.? The drive signal from A11 is current rather than voltage
so a
slight difference could be attributed to tolerance of my YTO coil resistance
(45.2 vs. 44.4 ohms?? Not enough for that difference).? I also tried swapping
the YTO for another and the replacement behaved exactly the same.
The instrument PLL locks nicely when using an external source.
Where did you find the CLIP you sent?? I'd like to see the rest of the A11
board, and maybe more, as it may be closer than the A/B CLIP I have.? And I'd
*love* to see a CLIP for the A3 source PCB!
Peter
On 3/16/2019 8:42 PM, pianovt via Groups.Io wrote:
> Maybe this will be helpful. It's from the 8753D, but should be the same for
> the ES.
>
> Vladan
>
>
>
>
|
Please excuse this my intrusion in an HP forum with a request non-HP-related, but I am in desperate need of the Service Manual of the Wandel & Goltermann SG4 Display Unit. Google is of no help...? I have a SG4 which needs some repairs. If somebody should have the PDF of that manual, please send it to me at the address dibene (at) usa.net
Many thanks in advance.
Alberto
|
I have bought a 70420A phase noise test set - the heart of E5500 phase noise measurement system and used it with HP3561A and, later, with HP89441A samplers.?
It needs a PC software package to be anywhere close to being useful.
Agilent E5500 software is available on Keysight website but requires a key tied to the serial number of the test set.
I have been advised that Keysight is kind enough to resend it to new owners of old E5500 equipment but few emails requesting the key went unanswered.
Do you have to make up a compassionate story of why you don't have the key or has Keysight simply finally stopped supporting these?
In the end I have simply programmed somebody else's S/N into my kit and am using their licence key but I am wondering whether I did not try hard enough with Keysight tech support?
Leo
|
Reading the manual of the counter , I verified the command to get te ID is "ID" or "SI".
The instruments doesn't support the SCPI standard command syntax .
On Agilent I/O there is the possibility to disable ,during the serching instruments , the *IDN? command.
I not remember if using NI Max there is this facilities
Best regards
Maurizio
|
Hi Mark , I suppose teh counter interface was setted on listen mode at first.
You can check if the NI Max is sending *IDN? command during the search for instruments.
May be the counter doesn't support this command.
Best regards
Maurizio
|
Agilent 16700B/16702B Manuals
I am looking for the User manual and also the service guide for the 16700B/16701B/16702B series mainframe. I'm pretty sure I have seen it, but cannot find it now... And I don't seem to be able to find them on the Keysight site...
Any place they are on the Web?
Maurice
|
Re: I'm officially lost now with this 8753ES
Hi I have the original CLIP manual for 8753D and I have done a PDF and uploaded at ? To download ? ? Regards Yves De?: [email protected] <[email protected]> De la part de Colby Burkett
·¡²Ô±¹´Ç²â¨¦?: 16 mars 2019 21:41
??: [email protected]
Objet?: Re: [HP-Agilent-Keysight-equipment] I'm officially lost now with this 8753ES ? It's available on eBay listed as 8753D CLIP. I bought mine that way. Artek doesn't seem to have it. Not sure if the eBay seller is licensed to sell it or not, but it's been years since I bought, and it's still listed by the same seller. ?
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On Sat, Mar 16, 2019, 6:07 PM Peter Gottlieb < hpnpilot@...> wrote: Thanks.? I've been working off of the 8753B CLIP, not too much has seemed to
have changed.? What is the part number for A11 in the 8753D?? In my ES it is
08753-60162.
What I'm seeing is that the YTO is over 200 MHz too high on the lower
frequencies (under say 1-1.5 GHz) so the test 48, generate proper pretune
voltages, fails.? The output at P1-1 to P1-2 is somewhat higher at the low end
than the manual shows, being 4.0 volts in mine vs. 3.5 volts stated in the
manual.? U18-6 voltages (not shown on the schematic shown below), out of the
DAC, look good.? The drive signal from A11 is current rather than voltage so a
slight difference could be attributed to tolerance of my YTO coil resistance
(45.2 vs. 44.4 ohms?? Not enough for that difference).? I also tried swapping
the YTO for another and the replacement behaved exactly the same.
The instrument PLL locks nicely when using an external source.
Where did you find the CLIP you sent?? I'd like to see the rest of the A11
board, and maybe more, as it may be closer than the A/B CLIP I have.? And I'd
*love* to see a CLIP for the A3 source PCB!
Peter
On 3/16/2019 8:42 PM, pianovt via Groups.Io wrote:
> Maybe this will be helpful. It's from the 8753D, but should be the same for
> the ES.
>
> Vladan
>
>
>
>
|
Re: I'm officially lost now with this 8753ES
I ordered the CLIPs from the ebay seller who likely got them from Manuals Plus which is now gone.
Nothing is obviously wrong with the VCO drive to the YTO.? I say "obviously" because the waveform has the same shape as it shows in the manual, but yet the voltages are off, most especially at the low frequency end where the manual says the drive should be 3.5 volts it is actually 4.0.? But is this a normal difference or has the PLL card drifted out of spec?
If I get a hold of another A11 card I will know that answer.
So here's the thing:? is it possible something I did in the hybrid module could have caused this?? I would not have thought so as it is operating at high RF frequencies only and not directly controlling the YTO frequency, especially when the PLL loop is opened.
I am thinking I will try and draw out a diagram of the PCB on the source module.
Peter
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On 3/16/2019 10:28 PM, pianovt via Groups.Io wrote: The schematic is for 08753-60162, so it matches what you have. I would monitor the voltage across R43 (the 40 Ohm power resistor) as you tune the YTO. It should be a fairly linear function of frequency with some d.c. offset.
As far as I know, the A3 source board schematic has never been published in a CLIP. I once saw it, and to my eye it didn't look nice enough for official publication. It was probably just good enough to extract the netlist and lay out the board. I suspect they never intended to publish it, so they didn't spend the money on making it look nice.
Vladan
|
Re: I'm officially lost now with this 8753ES
The schematic is for 08753-60162, so it matches what you have. I would monitor the voltage across R43 (the 40 Ohm power resistor) as you tune the YTO. It should be a fairly linear function of frequency with some d.c. offset.
As far as I know, the A3 source board schematic has never been published in a CLIP. I once saw it, and to my eye it didn't look nice enough for official publication. It was probably just good enough to extract the netlist and lay out the board. I suspect they never intended to publish it, so they didn't spend the money on making it look nice.
Vladan
|
Hi all. So, hooked up my acquired 5385A to my HP-IB (GPIB) network and it crashed! The unit has "Error 52" on the display.
Tried it all by itself and same issue. (This is with NI MAX... search for instruments) Have NEVER seen this before. Even NI MAX
has problems when the counter is connected. Google search reveals that others have problems with LabView but not helpful.
I have NOT tried using BASIC (hp 85 for example) with the unit.
Any advice on this please?
Thank you!
Mark in Oregon
(previous HP employee)
PS - this error indicates "First character of command is illegal"
|
Re: I'm officially lost now with this 8753ES
Thanks, just ordered one.
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On 3/16/2019 9:41 PM, Colby Burkett wrote: It's available on eBay listed as 8753D CLIP. I bought mine that way. Artek doesn't seem to have it.
Not sure if the eBay seller is licensed to sell it or not, but it's been years since I bought, and it's still listed by the same seller.
On Sat, Mar 16, 2019, 6:07 PM Peter Gottlieb <hpnpilot@... <mailto:hpnpilot@...>> wrote:
Thanks. I've been working off of the 8753B CLIP, not too much has seemed to
have changed.? What is the part number for A11 in the 8753D? In my ES it is
08753-60162.
What I'm seeing is that the YTO is over 200 MHz too high on the lower
frequencies (under say 1-1.5 GHz) so the test 48, generate proper pretune
voltages, fails.? The output at P1-1 to P1-2 is somewhat higher at the low
end
than the manual shows, being 4.0 volts in mine vs. 3.5 volts stated in the
manual.? U18-6 voltages (not shown on the schematic shown below), out of the
DAC, look good.? The drive signal from A11 is current rather than voltage
so a
slight difference could be attributed to tolerance of my YTO coil resistance
(45.2 vs. 44.4 ohms?? Not enough for that difference).? I also tried swapping
the YTO for another and the replacement behaved exactly the same.
The instrument PLL locks nicely when using an external source.
Where did you find the CLIP you sent?? I'd like to see the rest of the A11
board, and maybe more, as it may be closer than the A/B CLIP I have.? And I'd
*love* to see a CLIP for the A3 source PCB!
Peter
On 3/16/2019 8:42 PM, pianovt via Groups.Io wrote:
> Maybe this will be helpful. It's from the 8753D, but should be the same for
> the ES.
>
> Vladan
>
>
>
>
|
Re: I'm officially lost now with this 8753ES
It's available on eBay listed as 8753D CLIP. I bought mine that way. Artek doesn't seem to have it.
Not sure if the eBay seller is licensed to sell it or not, but it's been years since I bought, and it's still listed by the same seller.
On Sat, Mar 16, 2019, 6:07 PM Peter Gottlieb < hpnpilot@...> wrote: Thanks.? I've been working off of the 8753B CLIP, not too much has seemed to
have changed.? What is the part number for A11 in the 8753D?? In my ES it is
08753-60162.
What I'm seeing is that the YTO is over 200 MHz too high on the lower
frequencies (under say 1-1.5 GHz) so the test 48, generate proper pretune
voltages, fails.? The output at P1-1 to P1-2 is somewhat higher at the low end
than the manual shows, being 4.0 volts in mine vs. 3.5 volts stated in the
manual.? U18-6 voltages (not shown on the schematic shown below), out of the
DAC, look good.? The drive signal from A11 is current rather than voltage so a
slight difference could be attributed to tolerance of my YTO coil resistance
(45.2 vs. 44.4 ohms?? Not enough for that difference).? I also tried swapping
the YTO for another and the replacement behaved exactly the same.
The instrument PLL locks nicely when using an external source.
Where did you find the CLIP you sent?? I'd like to see the rest of the A11
board, and maybe more, as it may be closer than the A/B CLIP I have.? And I'd
*love* to see a CLIP for the A3 source PCB!
Peter
On 3/16/2019 8:42 PM, pianovt via Groups.Io wrote:
> Maybe this will be helpful. It's from the 8753D, but should be the same for
> the ES.
>
> Vladan
>
>
>
>
|
Re: I'm officially lost now with this 8753ES
Thanks.? I've been working off of the 8753B CLIP, not too much has seemed to have changed.? What is the part number for A11 in the 8753D?? In my ES it is 08753-60162.
What I'm seeing is that the YTO is over 200 MHz too high on the lower frequencies (under say 1-1.5 GHz) so the test 48, generate proper pretune voltages, fails.? The output at P1-1 to P1-2 is somewhat higher at the low end than the manual shows, being 4.0 volts in mine vs. 3.5 volts stated in the manual.? U18-6 voltages (not shown on the schematic shown below), out of the DAC, look good.? The drive signal from A11 is current rather than voltage so a slight difference could be attributed to tolerance of my YTO coil resistance (45.2 vs. 44.4 ohms?? Not enough for that difference).? I also tried swapping the YTO for another and the replacement behaved exactly the same.
The instrument PLL locks nicely when using an external source.
Where did you find the CLIP you sent?? I'd like to see the rest of the A11 board, and maybe more, as it may be closer than the A/B CLIP I have.? And I'd *love* to see a CLIP for the A3 source PCB!
Peter
toggle quoted message
Show quoted text
On 3/16/2019 8:42 PM, pianovt via Groups.Io wrote: Maybe this will be helpful. It's from the 8753D, but should be the same for the ES.
Vladan
|
Re: I'm officially lost now with this 8753ES
Maybe this will be helpful. It's from the 8753D, but should be the same for the ES. Vladan 
|
Re: HP/Keysight/Agilent 34401A DMM power transformer
Siggi
Again, thank you. Amazing (to me) the Keysight part is only 10 dollars more than the Chinese eBay replacements. So no contest there....And the video you linked shows the transformer hanging on the side rail of the chassis, so that should be easy to rig.
I will cross my fingers and buy the Keysight part.
Vic
|
Re: HP/Keysight/Agilent 34401A DMM power transformer
On Fri, Mar 15, 2019 at 7:37 AM victor smith < vcs3@...> wrote: Hello Siggi
Thank you for your quick response!?
Thanks for the info from the service manual. I see that there are a few on eBay (all from China) listed for the 34401A, but the part number is 9100-5608...
From the photo it does look to be a compatible part, at least in terms of the winding terminations. At $70.00 (US) each, I guess it might be worth it if it brings my meter to life! I just hate buying from Chinese vendors (not because of politics, simply because delivery is slow and unpredictable)
Then buy it from Keysight []. The registration process is a bit of a PITA, but the one time I bought a part from them it was Fedexed overnight at zero charge. ? So I was hoping maybe someone from the group has one for sale (or a junk unit I could cannibalize).
Has anyone replaced one of these? I wonder how the transformer is physically attached to the chassis?
There's a lot of info on the internet, see e.g. here [], or you might want to look at the parts diagram in the service manual.?
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Maurice Smulders