Re: HP/Agilent/Keysight version of Tek Wiki?
On 1/6/22 5:27 PM, Chris B wrote: Cool, a lot of new content on hpwiki since the last time I visited. Yes, there has been a huge flurry of activity since it was discussed here recently. That's been really nice to see. I added the 3478a and 8643a pages but didn't get to the 4195 which I find a bit daunting. Plus, there's no VNA category yet. Yeah, I have a 4195A too, I thought about it for a minute last summer and decided against doing that page, at least until I have like a whole day to spend on it. ;) But, feel free to add categories. Use the mailing list to propose changes or additions, though, if you're not sure about something. Is there a way to get the changelog for individual pages ? Looks like the "Recent Changes" page aggregates the entire wiki... I haven't bothered with any changelog stuff. If it's just that the "Recent Changes" page looks huge, it may be because there have been a huge number of additions in the past week. If it's everything, then I'll need to take a look at it. Also, I've been a bit reluctant to upload all the manuals & firmware I have - it's a lot of big files, already available at ko4bb/ keysight/ bitsavers etc.
@D. Mcguire : I'm happy to upload them but wanted to hear your preference first . A few 100MB may not be a problem today but if the wiki picks up in traffic you may feel otherwise... There are no bandwidth or storage problems here; this isn't a "home" network. But one thing's for sure, I don't want to find myself in the position of policing the uploads to make sure no Artek manuals show up in there, etc. At last count, my ~/Documentation/HP directory was sitting at about 16GB. -Dave -- Dave McGuire, AK4HZ New Kensington, PA
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FS HP4194A Operators & Service manuals
The Op manual is an HP original printing, the Service manual is a repro with a CD of the schematics in pdf. The binder in the Op manual has broken away from the outer cover. See pictures $15 for both, plus USPS Medial Mail shipping.   
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FS HP 3455A Operators & Sevice manuals
Both are original HP printing, in one binder. $15 plus USPS Media Mail   
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Re: HP/Agilent/Keysight version of Tek Wiki?
Cool, a lot of new content on hpwiki since the last time I visited. I added the 3478a and 8643a pages but didn't get to the 4195 which I find a bit daunting. Plus, there's no VNA category yet.
Is there a way to get the changelog for individual pages ? Looks like the "Recent Changes" page aggregates the entire wiki...
Also, I've been a bit reluctant to upload all the manuals & firmware I have - it's a lot of big files, already available at ko4bb/ keysight/ bitsavers etc.
@D. Mcguire : I'm happy to upload them but wanted to hear your preference first . A few 100MB may not be a problem today but if the wiki picks up in traffic you may feel otherwise...
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Re: HP 8663A Keycode Stimulus Diagnostic
I'm not familiar with the 8663A, but I did have a problem once on my 8780A where the keypad didn't respond.? The problem turned out to be a broken copper leaf spring underneath the "8" key.? The key contact was being shorted closed and to the instrument, it appeared that the "8" key was always being depressed.? To the user, the entire instrument keyboard appeared as non-responsive.
After I figured out the problem, I realized why a single "8" always appeared on the display after the instrument powered up.? Doooohhh! :-)?
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Re: New member (with a dso-x 3012a not booting)
Appreciate your help!
So, I tried booting the scope from a 12V bench supply.
Unfortunately no joy...
The thing draws about 2 Amps while doing nothing, is that reasonable (label says 100W on back panel) ?
toggle quoted message
Show quoted text
On 2022-01-06 17:01, Martin wrote: On 6. Jan 2022, at 14:58, Tommy <tommy@...> wrote:
Thanks for the suggestion but no sleep mode I'm aware of. Not necessarily a sleep mode.
When the on-off-switch does not cut mains power completely it means
the unit is not off but in a standby-mode where some electronics are
always active.
cheers
Martin
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Re: New member (with a dso-x 3012a not booting)
On 6. Jan 2022, at 14:58, Tommy <tommy@...> wrote: Thanks for the suggestion but no sleep mode I'm aware of. Not necessarily a sleep mode. When the on-off-switch does not cut mains power completely it means the unit is not off but in a standby-mode where some electronics are always active. cheers Martin
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Re: New member (with a dso-x 3012a not booting)
Update to newer firmware if you can get the scope to boot. You're experiencing NAND corruption which can occur with older firmware. The update will remap the bad blocks(if possible) and provide better recovery options. You should be running firmware 2.65.
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Re: New member (with a dso-x 3012a not booting)
Thanks for the suggestion but no sleep mode I'm aware of.
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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.
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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
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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
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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
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Re: New member (with a dso-x 3012a not booting)
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_._,_
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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...
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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
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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.
?
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Re: Tek/HP/Etc chat server
I can choose not to participate.
Sean
toggle quoted message
Show quoted text
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
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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. >
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Dave McGuire
Martin
Steve Draper