Re: HP attenuator O-rings
Dan,
Do you recall what the cost was on these and how many you had to buy? Also did you have a choice of material?
Thank you,
Sam W3OHM
|
Re: HP attenuator O-rings
Dan,
Do you recall what the cost was on these and how many you had to buy? Also did you have a choice of material?
Thank you,
Sam W3OHM
|
Re: OT: Datron or Wavetek Manuals
Greetings,
The below included link may well get you started.
Regards,
Ken
toggle quoted message
Show quoted text
Hi folks,
I'm looking for a complete set of User and Service Manuals for the
Datron/Wavetek 4808 calibrator.
In addition to the basic calibrator I also want manuals for Option 60 (aka
Datron 4600 Transconductance Amplifier) and Option 70 which is the
10Hz-30MHz Wideband Source
Ideally would like paper manuals but failing that I can manage with PDFs.
Aside to Dave H. - I notice that you have a PDF of the User manual for the
basic calibrator available - does it contain anything useful about either
the 4600 or Option 70 and is it complete (including Chapters 7 and 8)?
Thanks
Dave Partridge
|
OT: Datron or Wavetek Manuals
Hi folks,
I'm looking for a complete set of User and Service Manuals for the
Datron/Wavetek 4808 calibrator.
In addition to the basic calibrator I also want manuals for Option 60 (aka
Datron 4600 Transconductance Amplifier) and Option 70 which is the
10Hz-30MHz Wideband Source
Ideally would like paper manuals but failing that I can manage with PDFs.
Aside to Dave H. - I notice that you have a PDF of the User manual for the
basic calibrator available - does it contain anything useful about either
the 4600 or Option 70 and is it complete (including Chapters 7 and 8)?
Thanks
Dave Partridge
|
Re: 8595E suddenly faulty
Hi Adri,
In the 8594E, I can check the power supply voltages on the A16 boards, there
is 4 test points for 5v, +12v, +15v and -15v. May be it is the same with
your SA?
Roland F8CHK
________________________________
De : hp_agilent_equipment@...
[mailto:hp_agilent_equipment@...]
Envoy¨¦ : mardi 11 juillet 2017 22:00
? : hp_agilent_equipment@...
Objet : [hp_agilent_equipment] Re: 8595E suddenly faulty
thanks Scott and thanks Hermann for your advice
yes I got the service manual and I'm trying to collect the info for the
troubleshooting
Searching the Web I found a very limited number of faulty YTO and
considering that it was mounted on the whole 858xfamily I was expecting much
more occurrences (there must be a huge number of them out there)
Nevertheless I agree it is one of the possible culprits and I'm thinking
about how to check its output as my only other S.A. goes only to 1.8Ghz
(this YTO , part nr5086-7903, starts from 3.07GHz)
Anyway I'm also hoping for a hint about a way to check the power supply
voltages without pulling it out
thanks
adri
|
Re: 8595E suddenly faulty
thanks Scott and thanks Hermann for your advice yes I got the service manual and I'm trying to collect the info for the troubleshooting
Searching the Web I found a very limited number of faulty YTO ?and considering that it was mounted on the whole 858xfamily I was expecting much more occurrences (there must be a huge number of them out there)
Nevertheless I agree it is one of the possible culprits and I'm thinking about how to check its output as my only other S.A. goes only to 1.8Ghz (this YTO , part nr5086-7903, ?starts from 3.07GHz)
Anyway I'm also hoping for a hint about a way to check the power supply voltages without pulling it out
thanks adri
|
?
Interesting.....yes please, do?tell us where
to find them :-))
Alan
G3NYK
?
----- Original Message -----
Sent: Tuesday, July 11, 2017 5:31
PM
Subject: RE: [hp_agilent_equipment] 8594E
power supply
For
all of you with the 859X series portable spectrum analyzers, here is some
information that may be useful. Earlier versions of the analyzers used a power
supply which was designed and made outside of HP. After a few years, failures
started surfacing and HP (re)designed the supply in-house. The later supplies
are therefore a HP design and those are the ones for which a schematic is
often available. Those schematics will have the HP logo, etc. in the bottom
right corner.
Vladan
|
For all of you with the 859X series portable spectrum analyzers, here is some information that may be useful. Earlier versions of the analyzers used a power supply which was designed and made outside of HP. After a few years, failures started surfacing and HP (re)designed the supply in-house. The later supplies are therefore a HP design and those are the ones for which a schematic is often available. Those schematics will have the HP logo, etc. in the bottom right corner.
Vladan
|
Hi all,
Thanks for your help. I've just found a sch witch seems quite similar to
what I have on the boards in this thread:
So I can investigate a bit. The fuse didn't blown and no smoke!
Will tell you more if I found something!
Roland, F8CHK
________________________________
De : hp_agilent_equipment@...
[mailto:hp_agilent_equipment@...]
Envoy¨¦ : mardi 11 juillet 2017 15:43
? : hp_agilent_equipment@...
Objet : SV: [hp_agilent_equipment] 8594E power supply
Hi Roland
I have repaired several of these PSU and there is no SCH for it but if you
have the SCH for the 8560E series PSU you will find a lot similar.
The main error I have found is the switching FET¡¯s and the corresponding
small resistors, if my fussy memory is correct there are a 220 ohm and a 10
ohm leaded resistor to each FET check these.
The low voltage board has come in 3 different versions where the latest is
SMT but the design is the same but I have not yet repaired any of these yet
so concentrate on the HV switching and the capacitors here as well.
I hope this can help you a bit on the way, I have a handwritten SCH for a
8593A which also gives an idea of the built for the E series if you would
like this let me know.
Michael, OZ2ELA
Fra: hp_agilent_equipment@...
[mailto:hp_agilent_equipment@...]
Sendt: 11. juli 2017 12:36
Til: hp_agilent_equipment@...
Emne: [hp_agilent_equipment] 8594E power supply
Hi all,
I am trying to repair a 8594E spectrum analyser for a friend. The power
supply is faulty, none of the output voltages are ok, all leds on the ps are
off.
This is the 5062-8229 model, made in USA in the 90's. Three boards:
switching regulator 60024, output regulator 60025 and command 60026.
I have read that no schematics are available, is that still true? No visible
default, testing diodes, transistors, resistors, chemicals caps, didn't find
the problem.
I'm wandering if anyone have a faulty ps on a shelf, that may be I could use
to repair mine, two bads = one good, hi!
Open to any idea! Thanks for reading,
Roland F8CHK
|
Hi Roland ? I have repaired several of these PSU and there is no SCH for it but if you have the SCH for the 8560E series PSU you will find a lot similar. ? The main error I have found is the switching FET¡¯s and the corresponding small resistors, if my fussy memory is correct there are a 220 ohm and a 10 ohm leaded resistor to each FET check these. ? The low voltage board has come in 3 different versions where the latest is SMT but the design is the same but I have not yet repaired any of these yet so concentrate on the HV switching and the capacitors here as well. ? I hope this can help you a bit on the way, I have a handwritten SCH for a 8593A which also gives an idea of the built for the E series if you would like this let me know. ? Michael, OZ2ELA ? Fra: hp_agilent_equipment@... [mailto:hp_agilent_equipment@...]
Sendt: 11. juli 2017 12:36
Til: hp_agilent_equipment@...
Emne: [hp_agilent_equipment] 8594E power supply ? ? Hi all,
I am trying to repair a 8594E spectrum analyser for a friend. The power
supply is faulty, none of the output voltages are ok, all leds on the ps are
off.
This is the 5062-8229 model, made in USA in the 90's. Three boards:
switching regulator 60024, output regulator 60025 and command 60026.
I have read that no schematics are available, is that still true? No visible
default, testing diodes, transistors, resistors, chemicals caps, didn't find
the problem.
I'm wandering if anyone have a faulty ps on a shelf, that may be I could use
to repair mine, two bads = one good, hi!
Open to any idea! Thanks for reading,
Roland F8CHK
|
Hi :
Is there anybody did repair the probe for HP 4815A ?
Did anyone had measure the resistance between pins of the probe plug?
I did but , the reading had big different from the manual page 5-13 ?
I am using a HP412 to measure the DC resistance !
Any advise ?
Regard Tony Cheung JUL 11 2017
|
If the fuse isn't blown, some of the small 1-10 uf caps associated with soft start near the control IC may be bad.? You also may need to replace some of the caps on the output side of the supply.? A good ESR meter is useful along with a "octopus" or Huntron Tracker type unit that shows characteristic curves in circuit.? Use good caps sourced from a known non-counterfeit vendor...
When servicing power supplies for the Heath/Zenith computers (1980's) we only occasionally had schematics.? We called the fuse the module replacement indicator due to the fact it took 4x longer to rebuild one that failed with magic smoke release...
Jim n8qoh
On Tuesday, July 11, 2017, 8:36:00 AM EDT, george g_einst@... [hp_agilent_equipment] wrote:
Hi Roland It is common for no schematics to be available for HP power supplies as these were frequently bought in to a specification not a design from third parties at the time that the 8594E was manufactured. My guess is that your chances of finding a spare PSU is about as good as finding Hens teeth. I can and have repaired HP switch mode power supplies.? If I can help you please PM me. 73 George G6HIG ________________________________________ From: hp_agilent_equipment@... < hp_agilent_equipment@...> on behalf of 'Roland ETIENNE' roland.etienne@... [hp_agilent_equipment] < hp_agilent_equipment@...> Sent: 11 July 2017 10:36 To: hp_agilent_equipment@...Subject: [hp_agilent_equipment] 8594E power supply Hi all, I am trying to repair a 8594E spectrum analyser for a friend. The power supply is faulty, none of the output voltages are ok, all leds on the ps are off. This is the 5062-8229 model, made in USA in the 90's. Three boards: switching regulator 60024, output regulator 60025 and command 60026. I have read that no schematics are available, is that still true? No visible default, testing diodes, transistors, resistors, chemicals caps, didn't find the problem. I'm wandering if anyone have a faulty ps on a shelf, that may be I could use to repair mine, two bads = one good, hi! Open to any idea! Thanks for reading, Roland F8CHK ------------------------------------ ------------------------------------ ------------------------------------ Yahoo Groups Links <*> To visit your group on the web, go to: ? ? <*> Your email settings: ? ? Individual Email | Traditional <*> To change settings online go to: ? ? ? ? (Yahoo! ID required) <*> To change settings via email: ? ? hp_agilent_equipment-digest@... ? ? hp_agilent_equipment-fullfeatured@...<*> To unsubscribe from this group, send an email to: ? ? hp_agilent_equipment-unsubscribe@...<*> Your use of Yahoo Groups is subject to: ? ?
|
Hi Roland
It is common for no schematics to be available for HP power supplies as these were frequently bought in to a specification not a design from third parties at the time that the 8594E was manufactured.
My guess is that your chances of finding a spare PSU is about as good as finding Hens teeth.
I can and have repaired HP switch mode power supplies. If I can help you please PM me.
73 George G6HIG
________________________________________
From: hp_agilent_equipment@... <hp_agilent_equipment@...> on behalf of 'Roland ETIENNE' roland.etienne@... [hp_agilent_equipment] <hp_agilent_equipment@...>
Sent: 11 July 2017 10:36
To: hp_agilent_equipment@...
Subject: [hp_agilent_equipment] 8594E power supply
Hi all,
I am trying to repair a 8594E spectrum analyser for a friend. The power
supply is faulty, none of the output voltages are ok, all leds on the ps are
off.
This is the 5062-8229 model, made in USA in the 90's. Three boards:
switching regulator 60024, output regulator 60025 and command 60026.
I have read that no schematics are available, is that still true? No visible
default, testing diodes, transistors, resistors, chemicals caps, didn't find
the problem.
I'm wandering if anyone have a faulty ps on a shelf, that may be I could use
to repair mine, two bads = one good, hi!
Open to any idea! Thanks for reading,
Roland F8CHK
|
Hello Bob, Please call me on either landline or mobile. Tnx
On Tue, 11 Jul 2017 at 10:57, Bob Ocallaghan bob.g1epl@... [hp_agilent_equipment] wrote:
?
hi am looking for software to operate a marconi ifr spec anl..model 2390...and info on applying to analyser,or where i can get? installed..many thanks bob..uk.
|
Hi all,
I am trying to repair a 8594E spectrum analyser for a friend. The power
supply is faulty, none of the output voltages are ok, all leds on the ps are
off.
This is the 5062-8229 model, made in USA in the 90's. Three boards:
switching regulator 60024, output regulator 60025 and command 60026.
I have read that no schematics are available, is that still true? No visible
default, testing diodes, transistors, resistors, chemicals caps, didn't find
the problem.
I'm wandering if anyone have a faulty ps on a shelf, that may be I could use
to repair mine, two bads = one good, hi!
Open to any idea! Thanks for reading,
Roland F8CHK
|
hi am looking for software to operate a marconi ifr spec anl..model 2390...and info on applying to analyser,or where i can get? installed..many thanks bob..uk.
|
Thanks a lot. H15 is 10.7 MHz IF output compatable with option 002.
|
In the "Files" section of this group, there is an Excel file called "InstrumentOptions 1994.xls". The answer to the secret may be there.
Vladan
|
Hi,
I have got a 8560A with options 002, 003 and H15.
002 is built-in tracking, 003 is precision frequency reference, but what is H15 ?
Best regards.
|
Re: E4406A Input Attenuator
Did you check input attenuator (if remember 7dB 5W SMA-m SMA-f) just?
behind input N connector?
For IP address and real time clock, change the battery on main board -?
Panasonic BR2325 Lithium Polycarbon Monofloride
3V, 0.16 Ah.
Milan
?
ok
You use the input att to optimize your dynamic range of the
analyzer--thats first of all determined by ?the first mixer 2d 3d ?compression
point.Most hp analyzers are made to use the full dynamic range with signals
below -20dBm--one normally use the input att to place the input signal at that
range to have the max dynamic range---or optimize when using an external low
noise preamp.
Hardy
?
?
?
This is normal when you chance att settings-all
but noisefloor will remain
steady-thats one of the good things whith the new type of analyzers--
Hardy
-----Oprindelig meddelelse-----
Fra: hp_agilent_equipment@yahoogroups.com
[mailto:hp_agilent_equipment@yahoogroups.com]
Sendt: 10. juli 2017 16:18
Til: hp_agilent_equipment@yahoogroups.com
Emne: RE: [hp_agilent_equipment] E4406A Input Attenuator
Thanks all - For a bit more information here is what I experience:
1. Set sig gen to 50 MHz, 0dBm
2. Measure signal using VSA == -16.25dBm
3. Set input attenuator for 40dB
4. Measure signal using VSA == -15.4dBm
5. Change sig gen to 1000Mhz, 0dBm
6. Measure signal using VSA == -16.2dBm
Changing the input attenuator does seem to change where the noise floor is
but doesn't seem to impact the measured signal at all. This seems strange to
me but I am far from proficient using this piece of gear.
BTW The unit passes all self-tests & alignments without error but does seem
to exhibit a problem (reported here on the forum before) of the LAN
connection losing it's IP address between reboots).
TonyG
Sent from Mail<> for
Windows
10
From: 'hardy hansen' hardyhansen@...
[hp_agilent_equipment]hp_agilent_equipment@yahoogroups.com>
Sent: Monday, July 10, 2017 4:59 AM
To:
hp_agilent_equipment@yahoogroups.comhp_agilent_equipment@yahoogroups
.com>
Subject: SV: [hp_agilent_equipment] E4406A Input Attenuator
Yes
But it completes selftest--so the faullt has to be between rf input
connector and rf switch(used only for cal)- first mixer.
The selftest checks frontend att 1 dB steps from 0-40 with a 50Mhz signal
.
Hardy
Fra: hp_agilent_equipment@yahoogroups.com
[mailto:hp_agilent_equipment@yahoogroups.com]
Sendt: 10. juli 2017 05:43
Til: hp_agilent_equipment@yahoogroups.com
Emne: Re: [hp_agilent_equipment] E4406A Input Attenuator
It sure could be something else. Even a low LO to the mixer.
----- Original Message -----
From: 'hardy hansen' hardyhansen@...
[hp_agilent_equipment]hardyhansen@...%20[hp_agilent_equipme
nt]>
To:
hp_agilent_equipment@yahoogroups.comhp_agilent_equipment@yahoogroups
.com>
Sent: Sunday, July 09, 2017 11:05 PM
Subject: SV: [hp_agilent_equipment] E4406A Input Attenuator
Tom et al
If the loss is exactly 15 DB i would look for something else.
Regards
Hardy
Fra:
hp_agilent_equipment@yahoogroups.comhp_agilent_equipment@yahoogroups
.com> [mailto:hp_agilent_equipment@yahoogroups.com]
Sendt: 10. juli 2017 04:53
Til:
hp_agilent_equipment@yahoogroups.comhp_agilent_equipment@yahoogroups
.com>
Emne: Re: [hp_agilent_equipment] E4406A Input Attenuator
I'm betting it is the GaAs spdt rf switch on the input that has the loss.
----- Original Message -----
From: 'hardy hansen' hardyhansen@...
[hp_agilent_equipment]hardyhansen@...%20[hp_agilent_equipme
nt]>
To:
hp_agilent_equipment@yahoogroups.comhp_agilent_equipment@yahoogroups
.com>
Sent: Sunday, July 09, 2017 9:38 PM
Subject: SV: [hp_agilent_equipment] E4406A Input Attenuator
Tom
Have sent the rf clip to tony--the pictures you are asking for are very easy
to find on the internet
Fra:
hp_agilent_equipment@yahoogroups.comhp_agilent_equipment@yahoogroups
.com>
[mailto:hp_agilent_equipment@yahoogroups.com]
Sendt: 10. juli 2017 00:07
Til:
hp_agilent_equipment@yahoogroups.comhp_agilent_equipment@yahoogroups
.com>
Emne: Re: [hp_agilent_equipment] E4406A Input Attenuator
Can you get a few good pictures of the RF section and post them? Maybe we
can identify how they did the attenuators. Some that I have seen used Gaas
smt spdt RF switches for the attenuators. Later 8657 sig gens did this.
Regards
----- Original Message -----
From: "Tony Goodhew tony_goodhew@... [hp_agilent_equipment]"
<hp_agilent_equipment@yahoogroups.com>
To: <hp_agilent_equipment@yahoogroups.com>
Sent: Sunday, July 09, 2017 5:56 PM
Subject: RE: [hp_agilent_equipment] E4406A Input Attenuator
Thanks I took the unit apart, including opening up the A17 RF Assembly,
and there didn t appear to be any mechanical relays in there. I
couldn t
find any information on the components closest to the RF input to identify
any solid state relays or programmable attenuators.
In checking around I saw that Agilent promised in 2014 to post the CLIPs for
the E4406A but they don t seem to have followed through on that.
Does anyone happen to have them and could send me the A17 one?
Thanks,
TonyG
Sent from Mail<> for
Windows
10
From: Artek Manuals manuals@...
[hp_agilent_equipment]hp_agilent_equipment@yahoogroups.com>
Sent: Sunday, July 9, 2017 11:36 AM
To:
hp_agilent_equipment@yahoogroups.comhp_agilent_equipment@yahoogroups
.com>
Subject: Re: [hp_agilent_equipment] E4406A Input Attenuator
Sounds like you on the right track , If you lucky the relay is just stuck as
you say and you might exercise your way out of it... could also have
suffered from input overload ...a bit harder to fix
On 7/9/2017 2:30 PM,
tony_goodhew@...<mailto:tony_goodhew@hotmail.com>
[hp_agilent_equipment] wrote:
Hi All,
I just acquired an E4406A and put it on my bench. It seems to work fine
except that it is consistently reading 15dB low.
Poking around I found a control for the input attenuator and that seems to
have no impact on the measured value. From there I looked at the
services/test guide and ran through the 50MHz Input Attenuator Accuracy test
and that showed no change so I think that the attenuator is stuck.
Before I start pulling this apart I thought I might check in to see if I'm
missed something in the system settings that might cause this?
Thanks,
TonyG
--
Dave
Manuals@...<mailto:Manuals@ArtekManuals.com>
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Sam Reaves
David C. Partridge
Yiu On Tony C