Distorted sound from output #2

[Scorps]

Hello!

I've found out that the CH2 output gives out distorted sound.

Headphone output is okay, outputs 3 and 4 are also okay, so it has to be a problem with the output itself.

Lowering the volume helps a bit, but some sound guys are already complaining about my low output level, I'd have to turn the master volume to about a quarter to eliminate the distortion.

Here's a MP3 example of the distortion. It's in the right channel. I'm showing different sounds, effects are off (at some point I crank up the Leslie distortion to the max and then off again). Some reverb at the end too.

• Nord Stage right output distorted.mp3

Audacity shows asymmetric waveform in the right channel:

Screenshot 2019-03-25 04.19.29.png (71.92 KiB) Viewed 2001 times

Does anyone have an idea what may cause this distortion and how to get rid of it? My Stage is old, but otherwise works as a charm and I don't want to retire it already.

[aureliopenna]

Hello!

I've found out that the CH2 output gives out distorted sound.

Headphone output is okay, outputs 3 and 4 are also okay, so it has to be a problem with the output itself.

Lowering the volume helps a bit, but some sound guys are already complaining about my low output level, I'd have to turn the master volume to about a quarter to eliminate the distortion.

Here's a MP3 example of the distortion. It's in the right channel. I'm showing different sounds, effects are off (at some point I crank up the Leslie distortion to the max and then off again). Some reverb at the end too.

• Nord Stage right output distorted.mp3

Audacity shows asymmetric waveform in the right channel:

Screenshot 2019-03-25 04.19.29.png

Does anyone have an idea what may cause this distortion and how to get rid of it? My Stage is old, but otherwise works as a charm and I don't want to retire it already.

I can't tell if it's Ch1 or ch2 but I got this same distortion on my NS3C too. It's really annoying! And it's more noticeable on Rhodes and Wurlitzers.
JUST TO MAKE CLEAR, I use mogami cables on RME fireface UFX+ with 4db in and NO GAIN AND NO CLIPPING.

[maxpiano]

To make a more "scientific" test, have you tried with just a simple (sine or other) wave produced by the Synth, I mean a pure waveform with no effects, no filter, no envelopes, etc. ?

[aureliopenna]

Any update about this issue?

[bbarraPT]

Any news about this issue ?

I have the same problem in a NS EX. There's no techincal support from Nord in Portugal.. Do you know if there is any chance to get the squematics from NS EX76 ?

thanks

[M_a_c]

Great damages are not easy to solve. I sometimes had keys on my workbench with similar issues. Older ones had failed capacitors (at Nord there must be 2 rounds ones side by side). Newer keys also had come up with some failed SMD-mounted transistor, i don´t like to chance manually. This would be a bad diagnostis...

If it would be not software-related, you should clean the Output-Jacks carefully with some Fader-Spray and (even if you already did) check the cables you use twice...