Unresponsive switches aren’t reaching U3 (advanced question about AF hardware architecture)

Hi,

Having some unresponsive buttons and after confirming that the button mechanisms are working ok I decided to check further.

After probing a while I found that switches S1 to S16 (triggers) and S61 to S64 (bank select) are connected to U3 (HC373) as you can see on this table:

image

The unresponsive buttons, if my logic is right should be connected to D6 on U3 but they aren’t.

So while waiting for support to give me some feedback I’m trying to deduct what can be causing this, so if there is any elektronaut with advanced knowledges on this topic I’ll appreciate any thought.

Cheers,
Gustavo

3 Likes

hi there

just ran into the same problem but with Octatrack
did you got any answer from elektron?

was it HC373 chip or smd capacitor or diode?

i have transport buttons stop,play,pause and function,cue,program,bank unresponsive but positive checked for continutiy

hope you have some news
bests
K