Re: 3586B Selective Voltmeter Help trouble shooting
>Associated circuitry in A21, A22, would also need to be verified before you conclude defective A70.
?I'm a little confused by that, if I remove A70 and close the switch and it then the unit runs a proper CAL,
?wouldn't that say A21 and A22 were good?
????????????????????? Thanks, Lamont
P.S. I'm not sure what the A70 boards does, maybe an explanation of that would help.
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Re: 3586B Selective Voltmeter Help trouble shooting
The keypad switches have a leaf spring that has to buckle
in order for the switch contact to actuate.
Those that make a loud and forceful clunk have sticky grease
that is effectively gluing the leaf to the plastic parts.
If a button doesn't spring, and then suddenly release, as you
press it, it is probably defective.
As a way of visualizing what is happening, the leaf spring has
holders on each of its ends that because the spring is longer
than the space between the holders, force the spring into a
curved "L" shape up against the key plunger, and base. When
you press the key, you are making the space even shorter, and
the spring's curve presses even tighter into the crook of the
"L". When the key's pressure makes it so tight that the spring
cannot move any farther into the crook, the spring pops up,
making a knee, on the bottom of the "L".
If you cannot feel that happen, the spring is either missing, or
is creased. Missing springs will usually be hanging around
somewhere in the front panel area, and can be replaced. Bent
springs can usually be straightened by stroking the crease out
of the spring with a small stick.
Chuck Harris
nojunk@... [hp_agilent_equipment] wrote:
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I have not noticed any dead keys, but I'll run another check. I have some that click with slight force and others that work but don't click.
Thanks, Lamont
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Re: 3586B Selective Voltmeter Help trouble shooting
Lamont,
Associated circuitry in A21, A22, would also need to be verified before you conclude defective A70.
Dennis
--------------------------------------------
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On Fri, 10/20/17, nojunk@... [hp_agilent_equipment] <hp_agilent_equipment@...> wrote:
Subject: [hp_agilent_equipment] Re: 3586B Selective Voltmeter Help trouble shooting
To: hp_agilent_equipment@...
Date: Friday, October 20, 2017, 10:34 AM
I have an A70 board, so not a switch problem, I have
removed, wiped doen the edge connector, it already looked
good and reseated it. That didn't help.
?As a troubleshooting method can I remove the
A70 PCB, can I close the A60S2(2) switch, then rerun the
CAL.
If it doesn't respond with CE-F,
can I conclude a problem with A70?
????????????????????????
Thanks, Lamont
|
Re: 3586B Selective Voltmeter Help trouble shooting
I have not noticed any dead keys, but I'll run another check. I have some that click with slight force and others that work but don't click.
???????????????????????? Thanks, Lamont
|
Re: 3586B Selective Voltmeter Help trouble shooting
I have an A70 board, so not a switch problem, I have removed, wiped doen the edge connector, it already looked good and reseated it. That didn't help.
?As a troubleshooting method can I remove the A70 PCB, can I close the A60S2(2) switch, then rerun the CAL.
If it doesn't respond with CE-F, can I conclude a problem with A70?
???????????????????????? Thanks, Lamont
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Re: 5342A: blown sampler?
I’ve done the connector change and, using a good quality SMA, I have two 5342As that count reliably to 26GHz and one that just won’t count reliably above about 21GHz. I don’t have a 5343A to compare to but I wonder if maybe they were just hand-selected 5342As?
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?
Hi Harke,
oh, interesting. So the upgrade to 26 GHz, which would actually be a 5343A, changes only the connector? :-)
This is funny, because I use a HP 8563E spectrum analyzer at work, which operates fine at 26.5 GHz using a N connector!
Best
Tobias
?
Hello Tobias,
Congrats on the repair! Happy for you the sampler was fine! I can only comment on the frequency range. I have a number of HP equipment (including the HP5342A) that are spec'd to 20-22 GHz and with an (expensive) option that range can be extended to 26
GHz. The only hw change is the input connector that goes from N to APC3.5. No other change! Try the counter at 24 GHz and you will see it will work!
Good luck!
Harke
?
Hi all,
problem solved: as I said, the counter was counting fine on the low frequency input, but on the high frequency input, it displayed only zeros. The reason was that
a) the -5.2V operating voltage was out of the spec
b) the solder joint between the semirigid coax to the front panel's N connector cracked, thus the semirigid was no longer connected to the connector. I re-soldered and now it counts fine (only tested with 2 GHz so far).
I wonder whether it is possible to replace the ROM. It would be nice to add option 004, the DAC. I have couple of DAC80 here, however, opt. 004 needs a different ROM, unfortunately.
I also read that there was an option 005, which extends the frequency range to 24 GHz. Does someone know what option 005 actually was? was it a different sampler, or something that can easily be changed?
Tobias
?
Hi,
Your measurements with the diode mode suggest the sampler is OK, digital meters don't use the same amount of current to test resistance as older analogue meters and that's the reason you didn't get their readings.
I agree with Steve, you may need to replace a number of the 1826-0371, either on the A8 main VCO, A4 offset VCO or both.
I'd also check the A5 output to see if you're getting drive to the sampler driver and then check the sampler driver A26 itself.
I'd check in that order, check the VCOs are outputting signal, check the A5 to ensure it's outputting a signal to?A26 and it should alternate between the two VCOs, then check A26.
To check the sampler driver A26?you really need a?spectrum analyser. As most spectrum analysers have a capacitor (DC block) in the front end you need to terminate the A26 module with 50 Ohm and then measure what you see ac ross that with the spec an, if
you see lots of harmonics then all is good. You will not see anything?(apart from the 325MHz drive) without a dc return for the step recovery diode.
If the A26 is not working that could either be the SRD or it could be U1 on the A26 module - I have seen faulty U1 ICs in the past, most likely due to heat - they run very hot.
For the 1826-0371, you can buy fakes/replicas/copies off ebay or do what I do, I make a small smd pcb with 2 x 2sc3356 transistors, 2 x 100 ohm resistors and a 120 ohm resistor in the emitter lead?(all smd components)?with pins to fit in the DIP footprint.
You'll see the schematic for the 1826-0371 on a number of the 5342A schematics. I've not had any issue with my made up boards yet.
If you find it is U1 on the A5 module I can also give you an alternative circuit for that but it is not quite optimised yet ?and?requires short leads to minimise parasi tics.
Good luck
Greg
|
Re: 5342A: blown sampler?
Hi Harke,
oh, interesting. So the upgrade to 26 GHz, which would actually be a 5343A, changes only the connector? :-)
This is funny, because I use a HP 8563E spectrum analyzer at work, which operates fine at 26.5 GHz using a N connector!
Best
Tobias
toggle quoted message
Show quoted text
From: hp_agilent_equipment@... [hp_agilent_equipment@...]
Sent: Friday, October 20, 2017 14:13
To: hp_agilent_equipment@...
Subject: Re: RE: [hp_agilent_equipment] Re: 5342A: blown sampler?
?
Hello Tobias,
Congrats on the repair! Happy for you the sampler was fine! I can only comment on the frequency range. I have a number of HP equipment (including the HP5342A) that are spec'd to 20-22 GHz and with an (expensive) option that range can be extended to 26
GHz. The only hw change is the input connector that goes from N to APC3.5. No other change! Try the counter at 24 GHz and you will see it will work!
Good luck!
Harke
On Friday, October 20, 2017, 2:05:31 PM GMT+2, Tobias Pluess tobias.pluess@... [hp_agilent_equipment] wrote:
?
Hi all,
problem solved: as I said, the counter was counting fine on the low frequency input, but on the high frequency input, it displayed only zeros. The reason was that
a) the -5.2V operating voltage was out of the spec
b) the solder joint between the semirigid coax to the front panel's N connector cracked, thus the semirigid was no longer connected to the connector. I re-soldered and now it counts fine (only tested with 2 GHz so far).
I wonder whether it is possible to replace the ROM. It would be nice to add option 004, the DAC. I have couple of DAC80 here, however, opt. 004 needs a different ROM, unfortunately.
I also read that there was an option 005, which extends the frequency range to 24 GHz. Does someone know what option 005 actually was? was it a different sampler, or something that can easily be changed?
Tobias
From: hp_agilent_equipment@... [hp_agilent_equipment@...]
Sent: Wednesday, October 18, 2017 04:37
To: hp_agilent_equipment@...
Subject: [hp_agilent_equipment] Re: 5342A: blown sampler?
?
Hi,
Your measurements with the diode mode suggest the sampler is OK, digital meters don't use the same amount of current to test resistance as older analogue meters and that's the reason you didn't get their readings.
I agree with Steve, you may need to replace a number of the 1826-0371, either on the A8 main VCO, A4 offset VCO or both.
I'd also check the A5 output to see if you're getting drive to the sampler driver and then check the sampler driver A26 itself.
I'd check in that order, check the VCOs are outputting signal, check the A5 to ensure it's outputting a signal to?A26 and it should alternate between the two VCOs, then check A26.
To check the sampler driver A26?you really need a?spectrum analyser. As most spectrum analysers have a capacitor (DC block) in the front end you need to terminate the A26 module with 50 Ohm and then measure what you see ac ross that with the spec an, if
you see lots of harmonics then all is good. You will not see anything?(apart from the 325MHz drive) without a dc return for the step recovery diode.
If the A26 is not working that could either be the SRD or it could be U1 on the A26 module - I have seen faulty U1 ICs in the past, most likely due to heat - they run very hot.
For the 1826-0371, you can buy fakes/replicas/copies off ebay or do what I do, I make a small smd pcb with 2 x 2sc3356 transistors, 2 x 100 ohm resistors and a 120 ohm resistor in the emitter lead?(all smd components)?with pins to fit in the DIP footprint.
You'll see the schematic for the 1826-0371 on a number of the 5342A schematics. I've not had any issue with my made up boards yet.
If you find it is U1 on the A5 module I can also give you an alternative circuit for that but it is not quite optimised yet ?and?requires short leads to minimise parasi tics.
Good luck
Greg
|
Re: 5342A: blown sampler?
Hello Tobias,
Congrats on the repair! Happy for you the sampler was fine! I can only comment on the frequency range. I have a number of HP equipment (including the HP5342A) that are spec'd to 20-22 GHz and with an (expensive) option that range can be extended to 26 GHz. The only hw change is the input connector that goes from N to APC3.5. No other change! Try the counter at 24 GHz and you will see it will work! Good luck!
Harke
On Friday, October 20, 2017, 2:05:31 PM GMT+2, Tobias Pluess tobias.pluess@... [hp_agilent_equipment] wrote:
?
Hi all,
problem solved: as I said, the counter was counting fine on the low frequency input, but on the high frequency input, it displayed only zeros. The reason was that
a) the -5.2V operating voltage was out of the spec
b) the solder joint between the semirigid coax to the front panel's N connector cracked, thus the semirigid was no longer connected to the connector. I re-soldered and now it counts fine (only tested with 2 GHz so far).
I wonder whether it is possible to replace the ROM. It would be nice to add option 004, the DAC. I have couple of DAC80 here, however, opt. 004 needs a different ROM, unfortunately.
I also read that there was an option 005, which extends the frequency range to 24 GHz. Does someone know what option 005 actually was? was it a different sampler, or something that can easily be changed?
Tobias
From: hp_agilent_equipment@... [hp_agilent_equipment@...]
Sent: Wednesday, October 18, 2017 04:37
To: hp_agilent_equipment@...
Subject: [hp_agilent_equipment] Re: 5342A: blown sampler?
?
Hi,
Your measurements with the diode mode suggest the sampler is OK, digital meters don't use the same amount of current to test resistance as older analogue meters and that's the reason you didn't get their readings.
I agree with Steve, you may need to replace a number of the 1826-0371, either on the A8 main VCO, A4 offset VCO or both.
I'd also check the A5 output to see if you're getting drive to the sampler driver and then check the sampler driver A26 itself.
I'd check in that order, check the VCOs are outputting signal, check the A5 to ensure it's outputting a signal to?A26 and it should alternate between the two VCOs, then check A26.
To check the sampler driver A26?you really need a?spectrum analyser. As most spectrum analysers have a capacitor (DC block) in the front end you need to terminate the A26 module with 50 Ohm and then measure what you see ac ross that with the spec an, if
you see lots of harmonics then all is good. You will not see anything?(apart from the 325MHz drive) without a dc return for the step recovery diode.
If the A26 is not working that could either be the SRD or it could be U1 on the A26 module - I have seen faulty U1 ICs in the past, most likely due to heat - they run very hot.
For the 1826-0371, you can buy fakes/replicas/copies off ebay or do what I do, I make a small smd pcb with 2 x 2sc3356 transistors, 2 x 100 ohm resistors and a 120 ohm resistor in the emitter lead?(all smd components)?with pins to fit in the DIP footprint.
You'll see the schematic for the 1826-0371 on a number of the 5342A schematics. I've not had any issue with my made up boards yet.
If you find it is U1 on the A5 module I can also give you an alternative circuit for that but it is not quite optimised yet ?and?requires short leads to minimise parasi tics.
Good luck
Greg
|
Re: 5342A: blown sampler?
Dr. David Kirkby - Kirkby Microwave Ltd
The connnector on the higher frequency model was 3.5 mm, not N. I don't know if there are other changes
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Show quoted text
On 10/20/17 01:05 PM, Tobias Pluess tobias.pluess@... [hp_agilent_equipment] wrote: Hi all,
problem solved: as I said, the counter was counting fine on the low frequency input, but on the high frequency input, it displayed only zeros. The reason was that
a) the -5.2V operating voltage was out of the spec
b) the solder joint between the semirigid coax to the front panel's N connector cracked, thus the semirigid was no longer connected to the connector. I re-soldered and now it counts fine (only tested with 2 GHz so far).
I wonder whether it is possible to replace the ROM. It would be nice to add option 004, the DAC. I have couple of DAC80 here, however, opt. 004 needs a different ROM, unfortunately.
I also read that there was an option 005, which extends the frequency range to 24 GHz. Does someone know what option 005 actually was? was it a different sampler, or something that can easily be changed?
Tobias
________________________________
From: hp_agilent_equipment@... [hp_agilent_equipment@...]
Sent: Wednesday, October 18, 2017 04:37
To: hp_agilent_equipment@...
Subject: [hp_agilent_equipment] Re: 5342A: blown sampler?
Hi,
Your measurements with the diode mode suggest the sampler is OK, digital meters don't use the same amount of current to test resistance as older analogue meters and that's the reason you didn't get their readings.
I agree with Steve, you may need to replace a number of the 1826-0371, either on the A8 main VCO, A4 offset VCO or both.
I'd also check the A5 output to see if you're getting drive to the sampler driver and then check the sampler driver A26 itself.
I'd check in that order, check the VCOs are outputting signal, check the A5 to ensure it's outputting a signal to A26 and it should alternate between the two VCOs, then check A26.
To check the sampler driver A26 you really need a spectrum analyser. As most spectrum analysers have a capacitor (DC block) in the front end you need to terminate the A26 module with 50 Ohm and then measure what you see ac ross that with the spec an, if you see lots of harmonics then all is good. You will not see anything (apart from the 325MHz drive) without a dc return for the step recovery diode.
If the A26 is not working that could either be the SRD or it could be U1 on the A26 module - I have seen faulty U1 ICs in the past, most likely due to heat - they run very hot.
For the 1826-0371, you can buy fakes/replicas/copies off ebay or do what I do, I make a small smd pcb with 2 x 2sc3356 transistors, 2 x 100 ohm resistors and a 120 ohm resistor in the emitter lead (all smd components) with pins to fit in the DIP footprint. You'll see the schematic for the 1826-0371 on a number of the 5342A schematics. I've not had any issue with my made up boards yet.
If you find it is U1 on the A5 module I can also give you an alternative circuit for that but it is not quite optimised yet and requires short leads to minimise parasi tics.
Good luck
Greg
--
Dr. David Kirkby Ph.D CEng MIET
Kirkby Microwave Ltd
Registered office: Stokes Hall Lodge, Burnham Rd, Althorne, Essex, CM3 6DT, UK.
Registered in England and Wales, company number 08914892.
Tel: 07910 441670 / +44 7910 441670 (0900 to 2100 GMT only please)
|
Re: 5342A: blown sampler?
Hi all,
problem solved: as I said, the counter was counting fine on the low frequency input, but on the high frequency input, it displayed only zeros. The reason was that
a) the -5.2V operating voltage was out of the spec
b) the solder joint between the semirigid coax to the front panel's N connector cracked, thus the semirigid was no longer connected to the connector. I re-soldered and now it counts fine (only tested with 2 GHz so far).
I wonder whether it is possible to replace the ROM. It would be nice to add option 004, the DAC. I have couple of DAC80 here, however, opt. 004 needs a different ROM, unfortunately.
I also read that there was an option 005, which extends the frequency range to 24 GHz. Does someone know what option 005 actually was? was it a different sampler, or something that can easily be changed?
Tobias
toggle quoted message
Show quoted text
From: hp_agilent_equipment@... [hp_agilent_equipment@...]
Sent: Wednesday, October 18, 2017 04:37
To: hp_agilent_equipment@...
Subject: [hp_agilent_equipment] Re: 5342A: blown sampler?
?
Hi,
Your measurements with the diode mode suggest the sampler is OK, digital meters don't use the same amount of current to test resistance as older analogue meters and that's the reason you didn't get their readings.
I agree with Steve, you may need to replace a number of the 1826-0371, either on the A8 main VCO, A4 offset VCO or both.
I'd also check the A5 output to see if you're getting drive to the sampler driver and then check the sampler driver A26 itself.
I'd check in that order, check the VCOs are outputting signal, check the A5 to ensure it's outputting a signal to?A26 and it should alternate between the two VCOs, then check A26.
To check the sampler driver A26?you really need a?spectrum analyser. As most spectrum analysers have a capacitor (DC block) in the front end you need to terminate the A26 module with 50 Ohm and then measure what you see ac ross that with the spec an, if
you see lots of harmonics then all is good. You will not see anything?(apart from the 325MHz drive) without a dc return for the step recovery diode.
If the A26 is not working that could either be the SRD or it could be U1 on the A26 module - I have seen faulty U1 ICs in the past, most likely due to heat - they run very hot.
For the 1826-0371, you can buy fakes/replicas/copies off ebay or do what I do, I make a small smd pcb with 2 x 2sc3356 transistors, 2 x 100 ohm resistors and a 120 ohm resistor in the emitter lead?(all smd components)?with pins to fit in the DIP footprint.
You'll see the schematic for the 1826-0371 on a number of the 5342A schematics. I've not had any issue with my made up boards yet.
If you find it is U1 on the A5 module I can also give you an alternative circuit for that but it is not quite optimised yet ?and?requires short leads to minimise parasi tics.
Good luck
Greg
|
Tobias,
As?G?ran said, 8568 and 8566 are different design. I have no knowledge of 8568 so I can only speak for 8566.
In 8566, if the frequency span is less than 5mhz, YTO is phase locked during the entire sweep?— the FM coil is driven by the loop’s LPF?so that the YTO is phase locked. Side note, HP called it?“integrator" which is not what my?professor and textbook say. Integrator(1/s) is not LPF(a/(s+a)) mathematically but oh well...
For frequency span >5mhz, the YTO is?phase locked to the sweep start frequency during retrace(Lock), then the sample/hold circuit (between YTO’s second LPF and FM coil) is first in sample mode to store the tuning voltage from the LPF, then is placed in hold mode, which breaks the loop, the capacitor holds the constant voltage to the FM coil. Then the sweep ramp is fed to the YO mail coil to sweep(Roll).
This Lock-and-Roll scheme is also used in 8340/41 too.
Hope that helps! Calvin
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Calvin, does that mean the YTO is unlocked during the sweep?
Tobias
-------- Original message -------- Date: 10/16/17 00:20 (GMT+01:00)? Subject: Re: [hp_agilent_equipment] Re: 8568B YTO unlocked?
?On my 8566b, if the span is greater than certain MHz, the sweep source is operate in “Lock and Roll” mode - locks to the sweep start frequency then applies a ramp to roll.
Calvin
?I don't know about the screen flickering, but I do think the YTO loop behavior is normal. At wider spans it is not constantly phase-locked - it is driven open-loop with fairly accurate sweep current, and I think possibly re-phase-locked just at the beginning of the sweep each time around. For wide spans, you can't resolve the small frequency error on-screen anyway, but for narrow ones, more stability is needed, so the LO is locked. It's also possible that the narrow spans instead fix the first LO and use the second LO for sweeping - I can't recall for sure, but it should be one of those two schemes.
Definitely get the manual if you haven't already.
Ed
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Re: 8566B PL1 Unlock, PL2 Unlock and Ref Unlock
I tried an external reference without luck.? I guess it is time to dig into the problem.
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Re: HP 60’s Front Panel Color
Perhaps I was misunderstood. ?When I said a small sample of the desired color, I mentioned an inch and a half. ?That was a minimum size. ?I have taken entire front panels in for matching without a problem. ?Sorry for the confusion. George
Sent from my T-Mobile 4G LTE Device
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-------- Original message -------- From: "Daniel Koller kaboomdk@... [hp_agilent_equipment]" <hp_agilent_equipment@...> Date: 10/19/17 11:44 AM (GMT-05:00) To: hp_agilent_equipment@..., TekScopes <tekscopes@...> Subject: Re: [hp_agilent_equipment] HP 60’s Front Panel Color
Hi Folks, ? ?I'd like to revive this thread for an unrelated topic.? We're paining the interior of our house with "Pale Oak" from Benjamin Moore.? ?I was wondering if there is a way to match the color of the wall paint with an ENAMEL solvent based spray paint so I can use it on light switch covers and air intake vents.? ?Then on further thought, it would sure be useful to match the "HP gray" or "Tektronix Blue" (So I am cross-posting to that group), or Logan lathe grey, or any one of a thousand other hobby needs. ? I did find this this morning: ww.myperfectcolor.com/Custom-Color-Spray-Paint/33865.htm ? I have no affiliation with that company, nor have I tried it, but I was wondering if anyone here has, and figured I would share the link if not.? ?It appears from the description on the web site that they will match paints from major manufacturers.? That means to me that you can go to your favorite paint dealer, collect a bunch of sample swaths, and match those against your instrument's front panel, and just order by the paint code.? You don't have to cut a piece of your front panel off and mail it in!? ?It's not cheap - $47.99 for a single can, $25.99 each for two and dropping from there, but typically we only need a few cans, so it's steep.?? ? For truly custom colors it looks like they will match for a fee.
? Anyone try any similar such services?
? Dan
On Sunday, October 15, 2017, 6:07:42 PM EDT, amatec amatec@... [hp_agilent_equipment] <hp_agilent_equipment@...> wrote: ? For myself, I use Sherwin Williams. ?You need a small sample of the color. ?Roughly an inch and a half square and they will match it exactly. ?They will mix an industrial enamel in batches as small as a quart and can supply it as gloss, semi-gloss, satin, or flat. ?I have produced absolutely invisible small spot touch ups. ?I would think there would be an equivalent supplier in the UK. George Sent from my T-Mobile 4G LTE Device -------- Original message -------- From: "Adrian Nicol fenland787a@... [hp_agilent_equipment]" <hp_agilent_equipment@...> Date: 10/15/17 1:50 PM (GMT-05:00) To: hp_agilent_equipment@... Subject: Re: [hp_agilent_equipment] HP 60’s Front Panel Color ? Hi, I'm not sure there is an exact match in the RAL pallet. The nearest I have found for instruments of that vintage is RAL7042. That looks ok for panels that I wanted to 'tone in' with the HP equipment but it is probably not close enough to invisibly touch-up parts of an existing original panel. I have not explored it yet, but I gather there are now companies around who will colour (or color!) match from a sample and then mix an exact match for you. Some will do this in modest volume and for a reasonable cost, or so I am told! Adrian On Sunday, October 15, 2017 5:41 PM, "mmaseda@... [hp_agilent_equipment]" <hp_agilent_equipment@...> wrote: ? Can some please share with me the paint code used by HP for front panels in the 60’s? ?I have a very early 410C I’m trying to redo. ?The color is more dark than the RAL7044 used on the later 410C meters.
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Re: 3586B Selective Voltmeter Help trouble shooting
One thing to note, is when the keyboard springs fail,
the button feels dead, but can get stuck in a depressed
position, which bothers the power on self test.
If you have any dead keys, fix them first.
-Chuck Harris
nojunk@... [hp_agilent_equipment] wrote:
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I bought an HP3596B off EBay.
I have a service manual on order.
First thing I did was remove the leaky battery and thoroughly clean the PS board.
It looks good, however if I look down to the edge connector inside the unit I can see it has the blue
buildup on it from the battery leak. I'll save that until I disassemble to clean and lube the switches.
At power up the self calibration comes back with CE-F.
One poster suggested I put in Recall, Decimal point, Center Frequency ,8, when I do it comes back with
Fail 1 0.
Anyone have info on what the error codes denote?
Thanks, Lamont
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Re: 8566B PL1 Unlock, PL2 Unlock and Ref Unlock
Thanks, I'll try the? external ref.?
I have a 3586b sitting next to it and that has?the 10Mhz Oven in it.? Maybe I can just run that in?
I haven't checked the 3586B?output and the input into the 8566B and?will before testing.
Jerry
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Re: 8566B PL1 Unlock, PL2 Unlock and Ref Unlock
First try the external reference again, to be sure whether the internal one is OK or not. In my experience, the (Ovenaire brand as I recall) OCXOs used in the 8566s have been quite unreliable (ovens crap out), unlike the good old HP-made ones. It may be the application environment rather than the part being inadequate, however. As I have mentioned before, I don't like that the OCXO sits right in the high-flow center air plenum, so its oven has to work very hard to keep it hot while running.
Ed
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8566B PL1 Unlock, PL2 Unlock and Ref Unlock
Hello,?
I have the subject conditions that started this morning when I powered on my previously flawless 8566B.? I had used it with an external ref for a while, had flipped it back to internal and it had been working OK for several weeks?until posting these errors this morning.? They are blinking so it seems to be on the borderline.? Is this an internal ref adjustment?? Thoughts?? Should I try an external reference?
Thanks
|
Re: 3586B Selective Voltmeter Help trouble shooting
Lamont,
CE-F F is Weighed Filter under CAL cards A21, A22, A70 If A60S2(2) is OPEN and an A70 impairments board (Option 003) is not installed, CE-F will always occur during the CAL Cycle.
I have found connectors causing this problem.
All this stuff is clearly documented, just Google and read the documentation. This unit is a popular piece of equipment, and there is no lack of weeks upon weeks worth of user input.
Dennis
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On Thu, 10/19/17, nojunk@... [hp_agilent_equipment] <hp_agilent_equipment@...> wrote:
Subject: [hp_agilent_equipment] 3586B Selective Voltmeter Help trouble shooting
To: hp_agilent_equipment@...
Date: Thursday, October 19, 2017, 11:15 AM
I bought an HP3596B off EBay.
?I have a service manual on order.
?First thing I did was remove the leaky battery and
thoroughly clean the PS board.
It looks good, however if I look down to the edge connector
inside the unit I can see it has the blue
buildup on it from the battery leak. I'll save that
until I disassemble to clean and lube the switches.
?At power up the self calibration comes back with
CE-F.
One poster suggested I put in? Recall, Decimal point,
Center Frequency ,8, when I do it comes back with
Fail? 1? 0.
?Anyone have info on what the error codes denote?
?????????????????????????????????????
Thanks, Lamont
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Re: HP 60’s Front Panel Color
Hi Folks, ? ?I'd like to revive this thread for an unrelated topic.? We're paining the interior of our house with "Pale Oak" from Benjamin Moore.? ?I was wondering if there is a way to match the color of the wall paint with an ENAMEL solvent based spray paint so I can use it on light switch covers and air intake vents.? ?Then on further thought, it would sure be useful to match the "HP gray" or "Tektronix Blue" (So I am cross-posting to that group), or Logan lathe grey, or any one of a thousand other hobby needs. ? I did find this this morning: ww.myperfectcolor.com/Custom-Color-Spray-Paint/33865.htm ? I have no affiliation with that company, nor have I tried it, but I was wondering if anyone here has, and figured I would share the link if not.? ?It appears from the description on the web site that they will match paints from major manufacturers.? That means to me that you can go to your favorite paint dealer, collect a bunch of sample swaths, and match those against your instrument's front panel, and just order by the paint code.? You don't have to cut a piece of your front panel off and mail it in!? ?It's not cheap - $47.99 for a single can, $25.99 each for two and dropping from there, but typically we only need a few cans, so it's steep.?? ? For truly custom colors it looks like they will match for a fee.
? Anyone try any similar such services?
? Dan
On Sunday, October 15, 2017, 6:07:42 PM EDT, amatec amatec@... [hp_agilent_equipment] wrote: ? For myself, I use Sherwin Williams. ?You need a small sample of the color. ?Roughly an inch and a half square and they will match it exactly. ?They will mix an industrial enamel in batches as small as a quart and can supply it as gloss, semi-gloss, satin, or flat. ?I have produced absolutely invisible small spot touch ups. ?I would think there would be an equivalent supplier in the UK. George Sent from my T-Mobile 4G LTE Device
-------- Original message --------
From: "Adrian Nicol fenland787a@... [hp_agilent_equipment]"
Date: 10/15/17 1:50 PM (GMT-05:00)
To: hp_agilent_equipment@...
Subject: Re: [hp_agilent_equipment] HP 60’s Front Panel Color
?
Hi, I'm not sure there is an exact match in the RAL pallet. The nearest I have found for instruments of that vintage is RAL7042. That looks ok for panels that I wanted to 'tone in' with the HP equipment but it is probably not close enough to invisibly touch-up parts of an existing original panel. I have not explored it yet, but I gather there are now companies around who will colour (or color!) match from a sample and then mix an exact match for you. Some will do this in modest volume and for a reasonable cost, or so I am told!
Adrian
On Sunday, October 15, 2017 5:41 PM, "mmaseda@... [hp_agilent_equipment]" wrote:
?
Can some please share with me the paint code used by HP for front panels in the 60’s? ?I have a very early 410C I’m trying to redo. ?The color is more dark than the RAL7044 used on the later 410C meters.
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3586B Selective Voltmeter Help trouble shooting
I bought an HP3596B off EBay. ?I have a service manual on order. ?First thing I did was remove the leaky battery and thoroughly clean the PS board. It looks good, however if I look down to the edge connector inside the unit I can see it has the blue buildup on it from the battery leak. I'll save that until I disassemble to clean and lube the switches. ?At power up the self calibration comes back with CE-F. One poster suggested I put in? Recall, Decimal point, Center Frequency ,8, when I do it comes back with Fail? 1? 0. ?Anyone have info on what the error codes denote? ????????????????????????????????????? Thanks, Lamont
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