Hi Fabrice and forum,

This is most likely more of a hardware problem, but I'm just checking from the software point of view here.

My p600 is experiencing abrupt voltages drops to zero around the end of long envelopes on all six voices. This is most likely also happening on shorter envelope release settings but it is not as noticeable.

Attached are some pictures of oscilloscope readings showing the drop off.

I just want to make sure that it's definitely not an issue with software before I start replacing things like the op amps, demultiplexer, capacitors etc. For example, maybe the hardware and software are working fine, but I might need to make an adjustment on the DAC trim (I have the DAC700 with trim circuit). If it was the computer generated envelopes that were the issue, is it that they just reach a point where they turn off?

Just to clarify, I made these measurements at each voice's S/H circuit after the op amp.

If anyone on the forum has any advice, it would be much appreciated! Thank you!