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Re: New member (with a dso-x 3012a not booting)

 

On Thu, Jan 6, 2022 at 12:29 AM, tmillermdems wrote:
?
Main board has a battery, CR2032, I measured battery to 3.05V while in place.

Was the power on or off when you measured the cell voltage?

Scope was powered off.
Re: New member (with a dso-x 3012a not booting)

 

Hi Tommy,

does this scope has a standby mode?

More than once I've seen this sort of behaviour on various products that have standby power and switching supplies. One of the possible culprits is a capacitor that has to transmit startup-power. When they loose capacitance there will be a point where the unit starts sometimes, sometimes not, sometimes only when warm etc.

cheers
Martin
Re: Tek/HP/Etc chat server

 

Enough of this, both of you.

-Dave, list moderator

On January 5, 2022 9:10:35 PM "cheater cheater" <cheater00social@...> wrote:
I don't think that was clear enough - consider taking out a full page
ad in the New York Times

On Wed, Jan 5, 2022 at 7:57 PM Sean Turner via groups.io
<sdturne@...> wrote:

I can choose not to participate.

Sean

On Wed, Jan 5, 2022 at 10:26 AM, cheater cheater wrote:

The owner of every forum is exempt from every rule they set, and you
can't do anything about it. This forum, unlike others, states it
outright. I put this rule in explicitly so people who make trouble
don't start contrived technical legal babble arguments about what I
may or may not do when I'm moderating the platform. This prevents any
"gotcha" moments. This sort of trolling strategy comes up often enough
on well populated forums that it's a real time waster.

For example, let's say someone said a racist cuss word. I'll kick them
off saying "you're getting kicked off because you said X". Then
they'll start arguing that I should kick myself off, or something
equally stupid. I've had this happen a million times and I can't be
bothered with that. Hence rule 6.




On Tue, Jan 4, 2022 at 7:32 AM Sean Turner via groups.io
<sdturne@...> wrote:


Rule #6: "The server owner is exempt from all rules for obvious reasons"

I'll pass.

Sean


--
Dave McGuire, AK4HZ
New Kensington, PA
Re: Tek/HP/Etc chat server

 

I don't think that was clear enough - consider taking out a full page
ad in the New York Times

On Wed, Jan 5, 2022 at 7:57 PM Sean Turner via groups.io
<sdturne@...> wrote:

I can choose not to participate.

Sean

On Wed, Jan 5, 2022 at 10:26 AM, cheater cheater wrote:

The owner of every forum is exempt from every rule they set, and you
can't do anything about it. This forum, unlike others, states it
outright. I put this rule in explicitly so people who make trouble
don't start contrived technical legal babble arguments about what I
may or may not do when I'm moderating the platform. This prevents any
"gotcha" moments. This sort of trolling strategy comes up often enough
on well populated forums that it's a real time waster.

For example, let's say someone said a racist cuss word. I'll kick them
off saying "you're getting kicked off because you said X". Then
they'll start arguing that I should kick myself off, or something
equally stupid. I've had this happen a million times and I can't be
bothered with that. Hence rule 6.




On Tue, Jan 4, 2022 at 7:32 AM Sean Turner via groups.io
<sdturne@...> wrote:


Rule #6: "The server owner is exempt from all rules for obvious reasons"

I'll pass.

Sean
Re: New member (with a dso-x 3012a not booting)

tmillermdems
 

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On 1/5/2022 2:09 PM, Tommy wrote:
Greetings from Sweden, Scandinavia!
?
I'm Tommy, a new member here on groups.io although in the distant past a member at Yahoo.
?

?
Main board has a battery, CR2032, I measured battery to 3.05V while in place.

Was the power on or off when you measured the cell voltage?


Regards, and happy new year.

The battery maybe a little weak, what info is lost if I replace it, cal data or user settings ?

So, I need help, any and all comments on what I measured and what to try next, please.
._,Waew_._,_


This email has been checked for viruses by Avast antivirus software.


Re: New member (with a dso-x 3012a not booting)

 

Thanks Glen for your answer and yes I was afraid of that.

I'll give Keysight a call anyway.

Interesting link, not for the fainthhearted, I'll have to digest that, slowly...
Re: New member (with a dso-x 3012a not booting)

 

On Wed, Jan 5, 2022 at 11:10 AM Tommy <tommy@...> wrote:

Greetings from Sweden, Scandinavia!

I'm Tommy, a new member here on groups.io although in the distant past a member at Yahoo.

On my bench I have several "HPAK" instruments, mostly HP brand, aged for 25+ years...

Yesterday I needed a scope and powered up the Agilent DSO-X 3012A, fan starts, Run/Stop blinks twice, entry knob symbol and intensity key blinks, channel 2 button lights up and the ref/math/digital/serial buttons come on, then nothing else.
No display and no reaction to button presses.
There are known issues with boot flash corruption on some models of
Keysight scopes. At some point Keysight would fix the scopes even if
they were out of warranty if they had this particular issue. No idea
if that is still the case. There were subsequent firmware updates
which attempted to reduce the possibility of this issue. If you can
get the scope into the state where it boots again, try to update to
the latest firmware while it is booted.

Several discussions about this issue on the eevblog forum, for example:
!/msg3449446/#msg3449446
New member (with a dso-x 3012a not booting)

 

Greetings from Sweden, Scandinavia!
?
I'm Tommy, a new member here on groups.io although in the distant past a member at Yahoo.
?
On my bench I have several "HPAK" instruments, mostly HP brand, aged for 25+ years...
?
Yesterday I needed a scope and powered up the Agilent DSO-X 3012A, fan starts, Run/Stop blinks twice, entry knob symbol and intensity key blinks, channel 2 button lights up and the ref/math/digital/serial buttons come on, then nothing else.
No display and no reaction to button presses.
?
Afer power off and on, It Works!
?
Self tests and keyboard tests runs successfully and I take some measurements as well, no troubles at all.
?
I get on with measurements for an hour or more, works great!
?
On a whim I restart the scope - same problem again!
This time I have to power cycle several times to bring it up. Same story, everything seemingly works as it should, self tests et.c.
?
Today I can't persuade the thing to operate normally, it's stuck at the above scenario.
?
I took off the back panel and the power supply shield and made some voltage checks at the marked testpoints on the power modules, they check out reasonably well when loaded by the rest of the scope.
?
As there is no "old style" service manual and I'm having trouble finding much info on these scopes I made the assumption 3012A power connections are much the same as the 350Mhz model and checked voltages at J108 on the power supply referring to that section in the service manual. These also checks out reasonably well (n.b. while loaded by the scope, not so if main board is disonnected). From the text I got the impression the voltages are with mainboard disconnected, a misinterpretation on my part probably.
?
Main board has a battery, CR2032, I measured battery to 3.05V while in place.
The battery maybe a little weak, what info is lost if I replace it, cal data or user settings ?

So, I need help, any and all comments on what I measured and what to try next, please.
?
Re: Tek/HP/Etc chat server

 

I can choose not to participate.

Sean


On Wed, Jan 5, 2022 at 10:26 AM, cheater cheater wrote:
The owner of every forum is exempt from every rule they set, and you
can't do anything about it. This forum, unlike others, states it
outright. I put this rule in explicitly so people who make trouble
don't start contrived technical legal babble arguments about what I
may or may not do when I'm moderating the platform. This prevents any
"gotcha" moments. This sort of trolling strategy comes up often enough
on well populated forums that it's a real time waster.

For example, let's say someone said a racist cuss word. I'll kick them
off saying "you're getting kicked off because you said X". Then
they'll start arguing that I should kick myself off, or something
equally stupid. I've had this happen a million times and I can't be
bothered with that. Hence rule 6.




On Tue, Jan 4, 2022 at 7:32 AM Sean Turner via groups.io
<sdturne@...> wrote:

Rule #6: "The server owner is exempt from all rules for obvious reasons"

I'll pass.

Sean
Re: Tek/HP/Etc chat server

 

The owner of every forum is exempt from every rule they set, and you
can't do anything about it. This forum, unlike others, states it
outright. I put this rule in explicitly so people who make trouble
don't start contrived technical legal babble arguments about what I
may or may not do when I'm moderating the platform. This prevents any
"gotcha" moments. This sort of trolling strategy comes up often enough
on well populated forums that it's a real time waster.

For example, let's say someone said a racist cuss word. I'll kick them
off saying "you're getting kicked off because you said X". Then
they'll start arguing that I should kick myself off, or something
equally stupid. I've had this happen a million times and I can't be
bothered with that. Hence rule 6.




On Tue, Jan 4, 2022 at 7:32 AM Sean Turner via groups.io
<sdturne@...> wrote:

Rule #6: "The server owner is exempt from all rules for obvious reasons"

I'll pass.

Sean
Re: Dead 54720D

 

I was thinking about exactly the same. Do you want to compare to see where the check sume is stored ??

W ?roda, 5 stycznia 2022, 03:26:37 UTC, Mike Walters <mike@...> napisa?(-a):


Does anyone have a copy of the 54720 or 54710 firmware disk? If I
could take a look at that, I can probably figure out how to make a
54717a eeprom image for you.


On Tue, 4 Jan 2022 at 16:55, Arkadiusz Gibes via groups.io
<arkadiusz.gibes=[email protected]> wrote:
>
> I already found the 54712 eeprom image that you shared. Do you have any possibility, to download same firmware from the other unit ? I would like to compare. I have one 54712 unit, but still don't have programmer.
>
> W wtorek, 4 stycznia 2022, 16:46:54 UTC, Ovidiu Popa [Business] <ovidiu.popa@...> napisa?(-a):
>
>
> Sorry, no, I gave up and wrote off the 54720D. I have too many scopes anyway, from 100MHz to 50GHz, not enough incentive to spend more time on this. Meantime, watching for a 54717A, ideally someone owning one could dump the EEPROM. I know if I'd get one, this would be the first thing I'd do, this HP money grabbing calibration abomination has to end.
>
> If someone wants to pick up, I can forward the 54712A EEPROM binary.
>





Re: HP 8663A Keycode Stimulus Diagnostic

 

Hi Matt

My service manual P/N is 08663-90071, covering from 2234A to 2927A and found nothing about that keystrokes :(
However, my unit has serial 2846A opt 002, if you need data or whatever for comparison, tell me. Maybe I can help ;)

Regards,
R.
Re: Dead 54720D

 

Does anyone have a copy of the 54720 or 54710 firmware disk? If I
could take a look at that, I can probably figure out how to make a
54717a eeprom image for you.

On Tue, 4 Jan 2022 at 16:55, Arkadiusz Gibes via groups.io
<arkadiusz.gibes@...> wrote:

I already found the 54712 eeprom image that you shared. Do you have any possibility, to download same firmware from the other unit ? I would like to compare. I have one 54712 unit, but still don't have programmer.

W wtorek, 4 stycznia 2022, 16:46:54 UTC, Ovidiu Popa [Business] <ovidiu.popa@...> napisa?(-a):


Sorry, no, I gave up and wrote off the 54720D. I have too many scopes anyway, from 100MHz to 50GHz, not enough incentive to spend more time on this. Meantime, watching for a 54717A, ideally someone owning one could dump the EEPROM. I know if I'd get one, this would be the first thing I'd do, this HP money grabbing calibration abomination has to end.

If someone wants to pick up, I can forward the 54712A EEPROM binary.
Re: 98034A HPIB adaptor for 9825

 

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HP 85A, that's what it was.? After 3 and a half decades it took me a while to recall.? ? ? ? ? Jim



Sent from my T-Mobile 4G LTE Device


-------- Original message --------
From: Paul Berger <phb.hfx@...>
Date: 1/4/22 2:58 PM (GMT-08:00)
Subject: Re: [HP-Agilent-Keysight-equipment] 98034A HPIB adaptor for 9825


On 2022-01-04 6:16 p.m., Jim Ford wrote:
> Hmmmm.... We used something similar at Varian Beverly Microwave
> Division in 1986.? I can't remember the model number, but like the
> 9825, what we used was more than a calculator and less than a
> full-blown computer.? Ours had an LCD screen, though.? We used it to
> calculate pi pad resistor values.? Anybody remember the model no?? ? ?
> ? ? ? ? ? ? ?Jim Ford
>
>
>
The only thing from HP I can think of from around that time? that had a
LCD screen would have been the portable 45710A or portable plus 45711B
both of which had MSDOS in ROM.? There was also the larger Integral
which had a LCD like screen and ran HP-UX from ROM.

Paul.
Re: 98034A HPIB adaptor for 9825

 

On Tue, Jan 4, 2022 at 04:58 PM, nigel adams wrote:
9825 calculator
We used 9825s with automated headset test equipment at Plantronics in the 1980s. ?All of the test equipment and sound sources were connected via HPIB.
Re: 98034A HPIB adaptor for 9825

 

On 2022-01-04 6:16 p.m., Jim Ford wrote:
Hmmmm.... We used something similar at Varian Beverly Microwave Division in 1986.? I can't remember the model number, but like the 9825, what we used was more than a calculator and less than a full-blown computer.? Ours had an LCD screen, though.? We used it to calculate pi pad resistor values.? Anybody remember the model no?? ? ? ? ? ? ? ? ? ?Jim Ford


The only thing from HP I can think of from around that time? that had a LCD screen would have been the portable 45710A or portable plus 45711B both of which had MSDOS in ROM.? There was also the larger Integral which had a LCD like screen and ran HP-UX from ROM.

Paul.
Re: 98034A HPIB adaptor for 9825

 

开云体育

Hmmmm.... We used something similar at Varian Beverly Microwave Division in 1986.? I can't remember the model number, but like the 9825, what we used was more than a calculator and less than a full-blown computer.? Ours had an LCD screen, though.? We used it to calculate pi pad resistor values.? Anybody remember the model no?? ? ? ? ? ? ? ? ? ?Jim Ford



Sent from my T-Mobile 4G LTE Device


-------- Original message --------
From: "nigel adams via groups.io" <bristol.rell6l@...>
Date: 1/4/22 1:58 PM (GMT-08:00)
Subject: [HP-Agilent-Keysight-equipment] 98034A HPIB adaptor for 9825

All,
I have unearthed a 98034A HPIB adaptor for the 9825 calculator.
I will also post in the for sale group but have seen people discuss such items on here to so hope admins will allow this indiscretion.
I don’t have anything else related to this unit - although there appears to be plenty on the web.
Looks in good condition - although I am unable to test it.
If anyone would like to make me an offer for it, based in uk.
Regards
Nigel

by banging a nail into a piece of wood...
98034A HPIB adaptor for 9825

 

All,
I have unearthed a 98034A HPIB adaptor for the 9825 calculator.
I will also post in the for sale group but have seen people discuss such items on here to so hope admins will allow this indiscretion.
I don’t have anything else related to this unit - although there appears to be plenty on the web.
Looks in good condition - although I am unable to test it.
If anyone would like to make me an offer for it, based in uk.
Regards
Nigel

Sent from my iPad by banging a nail into a piece of wood...
HP8903A serial prefix 2414A service manual

 

Hi all!

I have an 8903A (with faults) and have been using the online edition of the 8903A manual (covering 1942A-2016A) fine for the CPU/latch/oscillator boards, but in the next stage of fault finding I need to look at the A6 oscillator amps / attenuators board and this is significantly different from the one illustrated (it has 3 relays). There is an online?8903B manual for 2450A to 2948A.

Board is 08903-60105?

The one in the 8903A manual?is 08903-60008 and the one in the 8903B is very different (08903-60132) the latter uses DACs as programmable amplifiers feeding signal in as VREF, the one I have appears to use JFETs to switch Rs in an opamp circuit.

Does anyone?know of the existence of a manual covering?2414A - or possibly revisions sheets explaining what changed? Would also be interested to know why... but that is probably too much to hope for!? If a real manual rather than electronic it would be the A6 board?I would like to know about (service sheets 10 & 11) even just schematics.

Alan Bain
P.S. Faults so far include dead F8 CPU, a mask ROM 4 which output data when OE was high causing RAM test errors, leaky caps in sample and hold (C45/C39). Leaky electrolytics on A3 board on supply rails.To fix remains oscillator distortion too high; output level too high when 3V RMS from osc board. AC RMS meter?seems to work, notch filter not tested.
Not H-P, But definately about scopes: WTB Philips PM-3000/3010

 

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Mini oscilloscopes are one of my collecting and restoration interests.? I am looking for a Philps PM-3000 or 3010. Need not be working, completeness is important.? AND- I am still looking for a Tektronix 224 handheld scope at a reasonable price. Thanks,

?? Bruce Gentry, KA2IVY

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