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Kontron/Tabor 6010 universal counter still worth getting?
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Peter1984:
Hello,
inspired by the idea of 0xdeadbeef I made a similar option-1 board for my Kontron 6010 Counter. I use a small 10MHz TCXO (+-0.2ppm) instead of an OCXO but the same ICS601 PLL-IC to generate the 100MHz. It seems to work and the unit shows the new option when booting up. The only problem is that the readings of the counter are now low by factor 10. If I feed 10.0000MHz to its Input the reading is only 1.00000MHz. So it looks like the counter still thinks that it has a 10MHz reference-clock instead of 100MHz.

I can measure the 100MHz PLL output clock at J4-Pin6. J4-Pin2 is shorted to ground and J4-Pin4 is open (measured +4.8V). I removed U56 and the LK1 Jumpers.

Is there any modification I forgot? When going back to the internal 5PPM oscillator the measurements of the counter are fine.

One thing that came to my mind is that my unit only runs on firmware-version 1.2. Is it possible that there is a problem with the old firmware? Are there newer hex-dumps for this model available?

Best regards
Peter
0xdeadbeef:
Hm. I'm pretty sure I posted everything I did here. My schematics show which pins I pulled low and left open and the picture of the LK1a/b jumpers shows how I placed them.
Besides, the "1.4" displayed should actually mean that options 1 and 4 are installed. Mine shows 1.2.4 as far as I recall. So the software seems to recognize the jumper setting.
Anyway, my software version is 2.1 (label on the EPROM as well as displayed during startup). So I dumped my EPROM in case this could help you.
Note that the EPROM installed in my device is a Dense-PAC D27C256. To read it out, I needed to selected a DPV27C256.
The manual says that "U42 is a 27128 EPROM containing 16K bytes of software". I guess they ran out of 128kbit EPROMs some day and decided to use 256kbit EPROMs with the additional address line pulled high.
So in the 32kByte dump, the lower 16kByte are empty. That why I also created a "27128" version by cutting out the lower (empty) 16kByte. Hope that helps.
Peter1984:
Wow, that was quick. I will try if my problem is still there with firmware V2.1 and will report on the result.
And yes, you are right. I only have option 1 and 4 (GPIB), so "6010-1.4" is correct. After that it shows "Soft 1.2" for the firmware version.
Thank you for this perfect service.
Peter
Peter1984:
I upgraded my unit to V2.1 today and the error is gone.  So there is definitely something wrong with firmware V1.2. I renounce to upload the V1.2 firmware since I don't see any reason to use it (unless someone wants to verify the error). The new firmware seems to work without problems on my old unit. And I am quite happy about the performance of the TCXO (Vectron C2260). Of course it is not even close to an OCXO but it is stable within 5 seconds after turning it on.

Thanks again to 0xdeadbeef
Peter
0xdeadbeef:
Happy to have been useful  ;D
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