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11
Current Software - Huntron Workstation 4.X / Re: Workstation 4.3.7656 released
« Last post by jvthorsley on January 25, 2021, 03:39:36 pm »
What improvements are there for Trackers without a Prober?
12
Current Software - Huntron Workstation 4.X / Re: Workstation 4.3.7632 released
« Last post by admin on December 23, 2020, 03:38:53 pm »
We have an updated Workstation 4.3 posted on the website now.
Thanks for your patience.

https://www.huntron.com/sales-support/software.htm
13
Current Software - Huntron Workstation 4.X / Re: Workstation 4.3.7632 released
« Last post by admin on December 21, 2020, 09:25:36 am »
Some of you may have noticed that the Download link for the new Workstation release has been disabled. Well, we discovered a bug that needed to be addressed so we expect to have the update posted in a day or two. Thanks for you patience.
Admin
14
Out of Production Hardware / Re: pedal for tracker DSI 700
« Last post by David cordero on December 03, 2020, 07:42:15 am »

hello friend, i make a usb pedal to use a huntron tracker workstation, it is uncomfortable and annoying every time you have to use the mouse to hit the dialog box and release your hands from your work, now i do it with my foot and it is fast and comfortable. here I publish a photo.
15
General Discussion / Re: Can anyone describe what a Waveform DC shift is?
« Last post by krawitjr on November 28, 2020, 11:38:47 am »
Yeah,
Huntronian is completely correct, the difference being I’ve seen both a purely capacitive signature and a zener-like transistor signature (MOSFET) shifted to the extreme left instead of the right of the origin, on two different boards, months apart.  But otherwise, yes.

I’ve given up on the answer, as I assumed this would be a known and observed phenomenon and it turned into a UFO debate over if I saw anything at all.  So I’ll not pursue this here any further. 

But I’ll just leave the info in case anyone else ever sees it - The last board to exhibit this was a control board for a large APC UPS, but the part that was scanned was a MOSFET (had IR part number and data sheet confirmed part was a MOSFET, all I recall).  It was very close to the main logic/CPU on the control board, it was a through-hole component that stood straight upwards, among SMD parts.  The UPS used to work but now would not longer even start. Failure was likely age-related. 

I touched from the large top-most drain tab to body/chassis ground and it wasn’t shorted according to the signature, but was suspected of failure due to getting hot when the UPS was trying to operate (but having no-boot up of logic board).  However, the “good looking” signature was extremely shifted to the left on a 5v range. Rescanned 4 times over 30 minutes to prove I wasn’t seeing things, the shift was the same every time.  No shift was observed on any other part on that board.

No batteries were connected, no coin cell batteries observed on the board, there were caps but I had drained them and my fluke multimeter showed transient voltage in the thousandths of a volt or less on them before we began testing. 

So that’s the end. Still a mystery, maybe one day I’ll know what that means. 
16
Current Software - Huntron Workstation 4.X / Workstation 4.3.7656 released
« Last post by admin on November 25, 2020, 11:33:48 am »
The latest release of Huntron Workstation 4.3 has taken a bit longer than normal but this year has been anything but normal. Version 4.3.7632 can be downloaded from the Software web page:
https://huntron.com/sales-support/software.htm

The new features are discussed in more detail on the Huntron News blog:
https://huntron.com/news/latest-huntron-workstation-software-release/

Thanks!
Admin
17
General Discussion / Re: Can anyone describe what a Waveform DC shift is?
« Last post by jvthorsley on November 06, 2020, 08:19:29 am »
Ah I think as has been said in this discussion, this refers to the  horizontal shift you get when there is a CMOS backup battery or high value storage capacitor in the circuit.

But you can read all the books / manuals until the cows come home, but the only way is to keep using a Tracker to fault find circuits, and in the process learn different ways of getting the best out of it.
18
General Discussion / Re: Can anyone describe what a Waveform DC shift is?
« Last post by admin on November 06, 2020, 06:47:15 am »
James, what you are showing is probably more common than what krawitjr is referring to but not the same thing. He is talking about a horizontal shift of the entire signature not just the breakdown point.
Here is a simulated DC shift using the Pulse Generator on my Tracker.
19
General Discussion / Re: Can anyone describe what a Waveform DC shift is?
« Last post by jvthorsley on November 05, 2020, 03:52:26 pm »
Not sure if this is the problem being discussed here.
The attached sketch shows in blue a stored signature .
Rescan and because of capacitive charge shows a shift to the right, and if this deviates beyond that set,  the test fails.
Highlight the failed signature, go into "real time",   and because of capacitor charge the trace moves to the far right.
The circuit is good, its just the instance when the signature is measured in the middle of a charging capacitor / diode circuit that can result in inconsistent results.
Or am I talking nonsense?
I use a ProTrack + Scanner + Workstation 4.3.
20
General Discussion / Re: Can anyone describe what a Waveform DC shift is?
« Last post by admin on November 05, 2020, 06:42:43 am »
When you see a horizontal shift in signature position from center then there is some sort of charge level being held at that point in the circuit. It could a capacitive circuit that is holding a charge or it could be something else. In some cases, it is the Tracker that introduces the charge on the board. The amount of shift will relate to the voltage setting of the Tracker which sets the horizontal scale i.e. if the Tracker is set to 4V then you will have 1 volt/div. If you have only seen this twice then perhaps you can look closer at the circuit you were testing and you tell us.
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