Nord User Forum

[quote="OBDave"]Has nothing to do with the "secret" connector. I'm pretty sure the "secret" connect is a two-wire serial interface to the microprocessor so the factory can reflash the bootloader and OS without having to open the unit up. It wouldn't have anything to do with key scanning.

Maybe, but these connections are often shared with general purpose ports or other functions on a microcontroller chip and those ports could be used in the scanner matrix. On start-up, they function as a programming or debug interface until the o/s configures them as ports.

Those suspect components look like radio interference filters - used liberally in a Nord on every connection to the outside world. If faulty, they either do nothing or short to ground, but the most likely fail mode is "do nothing".

At least it isn't an intermittent fault, the service people should be able to sort it out and lets hope it's a cheap fix

Hi averybody, just in case anyone is interested.
It took too much time to get an answer from the technical service but today they told me that the problem is in the main processor of the main board. it will be shipped to Nord for repairing (it can't be done here) and it seems it could be an expensive fix
I will post more information in a few days.