Channel 11 suddenly requires almost 50 db gain?

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    Profile photo of tronioustronious
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    Purchased the CQ18T February of this year.

    Absolutely love the mixer. It has served us very well.

    Last night we played a show and during sound check I was sound checking one of our guitar players.

    He uses a fender amp and he mikes it up with a Sennheiser mic built for guitars I guess.

    I have a scene that I use that gives us a good baseline. His gain is typically 18 DB.

    When he started playing, we noticed that I wasn’t getting a signal. Thought perhaps something was wrong with his rig so looked at the lines and everything seemed good.

    Started turning up his gain and slowly slowly started getting a signal. I had to go to almost 50 DB to get a usable signal

    That’s definitely not normal from past

    Thought maybe it was the XLR cable so I switched him to another input which is my vocal mic. This was input one.

    Immediately got a good clean signal at 22 DB of gain

    Switched my vocal mic to input 11 and I had the same problem. No usable signal until I gained it to 50.

    I then try to clean scene. I did a quick start with quick complete and same problem

    Not quite sure what might be going on. I do get a signal, but it’s very faint and I have to gain it almost 50 to get a -10 DB-Ish signal.

    Looking to find out any troubleshooting tips or what might be happening. I understand the software stuff well I’m a software engineer by trade. The internals and electronics are another world to me.

    Thanks for any help you can offer

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