ZMX244FX has no sound

Hi, I have a problem with the zmx244fx usb mixer.The sound enters to the channels (I see the peak) but there isn ́t sound in the master, the leds volume main doesn ́t ligthing too.Could you send me the Service manuals and schematics or circuit diagram?It definitely needs repair.Many thanks!Raul
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  • Hello,

    Thanks for posting. It sounds like your product may need to be serviced.  Warranty and non-warranty claims are not handled here on the forum but I can point you in the right direction. Here are a couple of options that you could choose from:

    • Submit a Warranty or Service inquiry with our Technical Support team by logging onto the Alto Pro Audio Support Page.  Select Warranty or Service Inquiry from the drop down menu.

    or


    I hope this helps!  Let me know if you have any additional questions.  
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