Author Topic: Uni-Trend Schematics  (Read 21099 times)

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Offline nukieTopic starter

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Uni-Trend Schematics
« on: July 30, 2011, 05:04:58 am »
Courtesy of member Potentiometer@http://bbs.38hot.net
http://bbs.38hot.net/read.php?tid=1308&page=1





EDIT BY DAVE: Sorry guys, files removed, we'd better not host these files on this forum.
« Last Edit: July 30, 2011, 11:40:44 pm by EEVblog »
 

Offline Lightages

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Re: Uni-Trend Schematics
« Reply #1 on: July 30, 2011, 05:58:23 am »
Thanks for these! One question though.... What opens the .sch files inside the archive? Eagle doesn't recognize them.
 

HLA-27b

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Re: Uni-Trend Schematics
« Reply #2 on: July 30, 2011, 06:14:49 am »
Beautiful Beautiful Job!!
 

Online firewalker

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Re: Uni-Trend Schematics
« Reply #3 on: July 30, 2011, 06:50:22 am »
Are those legal?

Alexander.
Become a realist, stay a dreamer.

 

Offline Neganur

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Re: Uni-Trend Schematics
« Reply #4 on: July 30, 2011, 07:32:43 am »
I was able to open the *.sch files using Mentor Graphics PADS.

I don't think these are legal. At least UNI-T doesn't offer those files on their website.
 

HLA-27b

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Re: Uni-Trend Schematics
« Reply #5 on: July 30, 2011, 08:34:51 am »
Legal or not these are gonna jump the sales of Unit-T like they wouldn't imagine in their wet dreams. If I was a producer I'd be rushing to get my schematics published as well. Remember the old days when every piece of equipment came with the schematics printed on their back covers. Most of that stuff is commanding respect even to this day.
 

Offline Kiriakos-GR

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Re: Uni-Trend Schematics
« Reply #6 on: July 30, 2011, 01:23:05 pm »
That's great or better amazing ..  ;D

No UT30D in the pack..  ???
 

Online firewalker

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Re: Uni-Trend Schematics
« Reply #7 on: July 30, 2011, 02:27:48 pm »
I don;t know if it is wise to share illegal (?) files through the forum.

Did the engineers that made those designs wanted to go public? Yes, No?

I thinks the files should be removed.

Alexander.
« Last Edit: July 30, 2011, 02:34:40 pm by firewalker »
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Offline Kiriakos-GR

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Re: Uni-Trend Schematics
« Reply #8 on: July 30, 2011, 03:20:23 pm »
As far I am aware of,  any one who had contacted UNI-T by email asking for help.
He ended up with a technical document given by the UNI-T support personal,
with explanations of how to repair the DMM by your self !!

Something that makes my funboysm about UNI-T even larger.

Fluke was doing the same about offering all the service manuals in PDF.
But they changed this tactic before few years.  ( speaking about the latest DMM )

My funboysm about Fluke is on crisis.  :)
« Last Edit: July 30, 2011, 03:23:51 pm by Kiriakos-GR »
 

Online Mechatrommer

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Re: Uni-Trend Schematics
« Reply #9 on: July 30, 2011, 03:35:33 pm »
I don;t know if it is wise to share illegal (?) files through the forum.
yes its wise, 100%!
Nature: Evolution and the Illusion of Randomness (Stephen L. Talbott): Its now indisputable that... organisms “expertise” contextualizes its genome, and its nonsense to say that these powers are under the control of the genome being contextualized - Barbara McClintock
 

alm

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Re: Uni-Trend Schematics
« Reply #10 on: July 30, 2011, 03:48:23 pm »
Did the engineers that made those designs wanted to go public? Yes, No?
The opinion of the engineers doesn't matter, it's their employer that matters. I find it very unlikely that Uni-T intended these documents to be released if it's not on their own website.

As far I am aware of,  any one who had contacted UNI-T by email asking for help.
He ended up with a technical document given by the UNI-T support personal,
with explanations of how to repair the DMM by your self !!
That's nice. It also saves them the costs of actually repairing it, just outsource repairs to your customers.

Fluke was doing the same about offering all the service manuals in PDF.
But they changed this tactic before few years.  ( speaking about the latest DMM )
They usually combine the service manual with calibration manual these days. For what model do they fail to provide one? Of course the service manuals published these days are useless compared to the old ones with full schematics, since they usually only contain basic troubleshooting and mechanical parts, but that's an industry-wide practice. The fact that some schematics were leaked (I believe there are also leaked version of some Fluke schematics floating around) doesn't change this, unfortunately.

yes its wise, 100%!
Exactly. Web hosts love their users being involved in illegal activity. They usually give their customers plenty of opportunity to respond when they're notified about the copyright infringement. For the irony-impaired: providers usually yank websites without any warning if they suspect illegal activity.
 

Online Zero999

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Re: Uni-Trend Schematics
« Reply #11 on: July 30, 2011, 04:35:31 pm »
I don't think there's anything to worry about. If Uni-T complain or the host doesn't like it, fair enough, remove them but otherwise I don't see the problem. It's not like this is going to reduce sales. It's not like he's posted some copyrighted music which could be argued to reduce sales due to people downloading it rather than buying it.
 

Online Mechatrommer

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Re: Uni-Trend Schematics
« Reply #12 on: July 30, 2011, 05:18:30 pm »
yes its wise, 100%!
Exactly.
i mean, who cares? if they dont want it to get into public, then dont sell the product in the first place. anyone with great spirit can redraw the schematics. their own chinese people are expert on this. imo, if i buy a thing, then thats mine including the circuit (schematic) in it. if its get cracked, then its not the hackers fault, its the manufacturer's fault, for not hiding it hard enough. just dont publish your name if you dont want to get sued like in sony case (bushing).
Nature: Evolution and the Illusion of Randomness (Stephen L. Talbott): Its now indisputable that... organisms “expertise” contextualizes its genome, and its nonsense to say that these powers are under the control of the genome being contextualized - Barbara McClintock
 

Online Zero999

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Re: Uni-Trend Schematics
« Reply #13 on: July 30, 2011, 06:13:15 pm »
I Googled for the ADC IC used in the meter and found a datasheet with a schematic resembling the meter schematic pretty closely. Anyone could open the meter up and Google for the ES51922 so I think we're pretty safe.

http://www.cyrustek.com.tw/spec/ES51922.pdf
 

Offline Kiriakos-GR

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Re: Uni-Trend Schematics
« Reply #14 on: July 30, 2011, 07:13:06 pm »
People !!  People !!    :D

If some one gets in the trouble to copy one handheld DMM by making his own DIY DMM .
Please let me know with his name, I will register him in the Guinness book.
He must be the most desperate person in this planet !!  LOL   

« Last Edit: July 30, 2011, 07:14:38 pm by Kiriakos-GR »
 

Online Mechatrommer

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Re: Uni-Trend Schematics
« Reply #15 on: July 30, 2011, 07:41:54 pm »
People !!  People !!    :D
If some one gets in the trouble to copy one handheld DMM by making his own DIY DMM .
Please let me know with his name, I will register him in the Guinness book.
He must be the most desperate person in this planet !!  LOL   
usually students or unemployed with great spirit. not like you... the "professional".
Nature: Evolution and the Illusion of Randomness (Stephen L. Talbott): Its now indisputable that... organisms “expertise” contextualizes its genome, and its nonsense to say that these powers are under the control of the genome being contextualized - Barbara McClintock
 

alm

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Re: Uni-Trend Schematics
« Reply #16 on: July 30, 2011, 08:06:47 pm »
Copyright also applies to schematics, did you draw the schematics?

One reason they might care is because publishing schematics might show any copyright or patent infringement on their part. Keeping your schematics proprietary conveniently makes it harder for competitors to spot this.
 

Offline Kiriakos-GR

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Re: Uni-Trend Schematics
« Reply #17 on: July 30, 2011, 08:21:58 pm »
People !!  People !!    :D
If some one gets in the trouble to copy one handheld DMM by making his own DIY DMM .
Please let me know with his name, I will register him in the Guinness book.
He must be the most desperate person in this planet !!  LOL   
usually students or unemployed with great spirit. not like you... the "professional".

Yes yes, I will disagree with you,  the DIY version it will cost more to make it,
but I do not mind to be teased by you.   :P
 

Offline EEVblog

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Re: Uni-Trend Schematics
« Reply #18 on: July 30, 2011, 11:46:49 pm »
I don't think there's anything to worry about. If Uni-T complain or the host doesn't like it, fair enough, remove them but otherwise I don't see the problem.

Unfortunately the problem is that this forum and all my sites are hosted in the US. One simple DMCA complaint gets EVERYTHING taken down. They don't ask you to remove the file, they simply shut down your entire server. They shoot first and ask questions later.

Dave.
 

Offline nukieTopic starter

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Re: Uni-Trend Schematics
« Reply #19 on: July 31, 2011, 12:49:49 am »
sorry for not considering your position, I was too excited when posting it.
 

Offline Wartex

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Re: Uni-Trend Schematics
« Reply #20 on: August 06, 2011, 07:35:33 am »
I don't think there's anything to worry about. If Uni-T complain or the host doesn't like it, fair enough, remove them but otherwise I don't see the problem.

Unfortunately the problem is that this forum and all my sites are hosted in the US. One simple DMCA complaint gets EVERYTHING taken down. They don't ask you to remove the file, they simply shut down your entire server. They shoot first and ask questions later.

Dave.

That is not how DMCA works. You will be contacted by your hoster and given a chance to take the files down. The only way entire website can be shut down if there is a court order. Also safe harbour provisions in DMCA protect you as a forum admin from liability.
 

alm

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Re: Uni-Trend Schematics
« Reply #21 on: August 06, 2011, 08:42:08 am »
The notice and take down procedure is that the ISP takes down the website and waits for a notice that there's no infringement going on under the penalty of perjury by the customer. Then it will restore access after two weeks or so. This is if the ISP follows the law and doesn't decide to take action themselves. ISPs are also free to terminate service if they feel a customer is too much hassle/risk.
 

Offline Wartex

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Re: Uni-Trend Schematics
« Reply #22 on: August 06, 2011, 06:52:53 pm »
The notice and take down procedure is that the ISP takes down the website and waits for a notice that there's no infringement going on under the penalty of perjury by the customer. Then it will restore access after two weeks or so. This is if the ISP follows the law and doesn't decide to take action themselves. ISPs are also free to terminate service if they feel a customer is too much hassle/risk.

Following your logic Youtube would be permanently down. Please read up on how DMCA takedowns work before posting. Also ISP and "hoster" are not interchangeable terms.
 

alm

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Re: Uni-Trend Schematics
« Reply #23 on: August 06, 2011, 09:15:33 pm »
Following your logic Youtube would be permanently down.
In that case Youtube act as the service provider protected by safe harbor provisions, which are not likely to apply to Dave. I believe he would have to register an agent to handle copyright infringement with the US government, and would have to remove the content as soon as he was aware of it. Google being a big fish also helps a lot.

Yes, in theory the service provider only has to take down the offending content, but they can't go into a customers forum database to temporarily take down a single post, so in practice this usually means the whole website/forum unless you're a big customer.

Please read up on how DMCA takedowns work before posting.
Care to provide some details and references on where I'm wrong?

Also ISP and "hoster" are not interchangeable terms.
I believe the DMCA just calls it 'service provider', which includes both (assuming they satisfy all requirements).
 

Offline patb

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Re: Uni-Trend Schematics
« Reply #24 on: August 07, 2011, 01:31:06 pm »
I don't think there's anything to worry about. If Uni-T complain or the host doesn't like it, fair enough, remove them but otherwise I don't see the problem.

Unfortunately the problem is that this forum and all my sites are hosted in the US. One simple DMCA complaint gets EVERYTHING taken down. They don't ask you to remove the file, they simply shut down your entire server. They shoot first and ask questions later.

Dave.

Maybe it is time to change hosting then? How about one of your favorite countries, Germany? Just take a look at the prices of dedicated servers: http://www.hetzner.de/en/hosting/produktmatrix/rootserver-produktmatrix-eq. As far as I remember you get unlimited transfer via 100Mbps connection until you reach 10 TB (monthly) - then it slows down to 10Mbps (unless you pay extra). Downside of dedicated server is that you need to manage it by yourself which may be really painful. 50 eur/month for your own server connected to massive multi-gigabit node is not a bad price IMHO. Anyway, just wanted to let you know about alternatives. :)

Patryk.

PS. I've just noticed that they also have dedicated managed servers - http://www.hetzner.de/en/hosting/produktmatrix/managed-server-produktmatrix
 


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