Recent Posts

Pages: 1 ... 8 9 [10]
91
General Discussion / Re: Software Suggestions
« Last post by IsaiasW on February 18, 2018, 02:12:42 am »
Hello Huntronian, was this ever implemented? It would fit our needs perfectly.
92
Out of Production Hardware / Re: Technical Issue with 3x Tracker 2700 and 2700S
« Last post by emanuxelz on February 09, 2018, 09:07:08 am »
I removed the 3 zero ohms resistor to separate the circuit.

5v and gnd(d) from r180 are shorted.

+5va and -5va are shorted but their middle ground isnt shorted.

My last resource would be supply it with 5v and wait for the smoke with a Fluke thermal camera.
93
Out of Production Hardware / Re: Technical Issue with 3x Tracker 2700 and 2700S
« Last post by emanuxelz on February 08, 2018, 06:50:04 pm »
I was wondering, is there any way to separate at least parts of the circuit from the same 5v supply? Like removing zero ohms resistances for instance.

Also, how can 3 voltages from 3 different regulators(wich I already removed) can be shorted? That would mean I have at least 2 shorts one from 5v-gnd and other from +5va-gnd-5va.

Thanks for your help, I will try the caps tomorrow.
94
Out of Production Hardware / Re: Technical Issue with 3x Tracker 2700 and 2700S
« Last post by admin on February 08, 2018, 09:15:23 am »
Sounds like a shorted cap (or caps). You might need to start removing them (start with the tantalums) and watch for the short to disappear.
95
Out of Production Hardware / Re: Technical Issue with 3x Tracker 2700 and 2700S
« Last post by emanuxelz on February 08, 2018, 08:22:31 am »
I found others HC4051s deads.

Everything suplied with +5v, -5va, +5va are shorted.
96
Out of Production Hardware / Re: Technical Issue with 3x Tracker 2700 and 2700S
« Last post by admin on February 06, 2018, 11:11:42 am »
Heh, heh. The first 2700 versions had regular, soldered-in micro-fuses that had to be replaced when blown. The fuses on the later versions of the Tracker 2700 main board were "self-resetting".
97
Out of Production Hardware / Re: Technical Issue with 3x Tracker 2700 and 2700S
« Last post by emanuxelz on February 06, 2018, 09:50:50 am »
Thanks very much for the schematics it will help me a lot. I will report again.

Btw its impressive how the fuses didnt blow up and are just fine.
98
Out of Production Hardware / Re: Technical Issue with 3x Tracker 2700 and 2700S
« Last post by admin on February 06, 2018, 07:11:24 am »
Hi Emanuxelz and welcome to the Users Forum.
I would check the most obvious possibilities such as open or shorted solder joints first (you probably already have...). Try running the internal Diags. This may provide a clue where the issue may be.
The schematic for  the main PCB is available here:
http://www.huntron.com/privatesales/technical/2700main-pca.pdf

99
Out of Production Hardware / Re: Technical Issue with 3x Tracker 2700 and 2700S
« Last post by emanuxelz on February 06, 2018, 02:57:56 am »
I had a broken 2700 (cap discharge) that was many years in the storage room I tried to repair it using another working 2700 as model. I removed some ICs from the good board to make some measurements using a 3rd tracker(2800s) and put it back together but it doesn't work anymore. It shows a circle like it was measuring a capacitor even without the cables conected. When I short the leads it shows a vertical line so it is kinda working. I tried to diagnose it but the offset doesnt avail.

The ICs that I removed or swapped are AR3,4,7,9,12 and U48

The bad board was pretty much blown by the cap discharge. AR3 and U48 were completely explosed, the caps and the resistors  r304 and r63 were damaged by it.
I removed r64 and found a short circuit going to U11 (74hc4051) I swapped it for another one from the same board and the short is gone.  Q1, q2, q12 and q13 showed different signatures compared to the good (now bad too) board but I dint replace them yet.

I think i maybe swapped ar12 from the bad board to the good board and it made kill another IC. Maybe this high speed buffer IC is too sensitive to temperature, I dont know...

Can I have some help to repair at least the good board again. My boss is gonna kill me if this tracker isn't repaires by the end of the week.
100
Obsolete Software / Re: software for 5100DS for XP, workstation 3
« Last post by David cordero on January 19, 2018, 06:21:41 pm »

thank you very much friends for the support they always give me, I just want to make the 5100DS functional and I think that the workstation 3 is the ideal one.

Greetings and many thanks James and Curtis.
Pages: 1 ... 8 9 [10]