US Audio Mix-8 Line Mixer - Tº while idle

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  • Felipe_Serra_83
    Member
    • Nov 2023
    • 25
    • Chile
    #1

    US Audio Mix-8 Line Mixer - Tº while idle

    Hello all.

    I have a US Audio Mix-8 Line Mixer, rack mountable. I changed the fuse and powered on with a current limiter (lightbulb thingy).

    I noticed that the voltage regulators (could be 7818-7918 - not sure because the heatsinks covers them) get hot, even though I'm not connecting lines in nor speakers. They get up to 52ºC in a couple of minutes after powering on.

    My question: is this normal? My gut tells me it isn't, and I'm thinking about some faulty component pulling too much current. But I have investigated and can't find nothing.

    Thanks in advance for any help in this.
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