Hello,

I have had my UFX II since November 2018 and love it but up until now I have not really used the onboard preamps other than occasionally using channel 9.  Recently I have started using the onboard preamps and noticed noise on channel 10.  Even without anything connected I see noise on the channel in Totalmix and Digi Check.  The noise level increases if I turn up the gain and the signal light starts the come on around a gain setting of 10.  The noise is visual and audibly present when increase the gain further.  The other 3 preamps do not do this.

Does anyone have a guess on what is causing this issue.  I do have some electronics experience and would love to try and repair it myself with some type of tech support.
If the repair would be more involved then I suppose the recommendation would be to send it in for repair.

Thanks in advance for any feedback and assistance.

John