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How to hook up external audio amp

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  • How to hook up external audio amp

    How do you recommend hooking up a µLCD-32PT to an audio amplifier that has a common ground?

    It appears that the (-) speaker wire is not ground as the µLCD-32PT resets it's self when (-) is connected to ground and any audio output is generated.

    Dan Clemens
    Summerville, Oregon

  • #2


    The amp has differential outputs, so -ve is not ground

    The best place to take off for an external amp is probably the junction of C26 and R9 as per the circuit diagram in the current data sheet
    Mark

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    • #3


      Sorry!
      My fault, I thought I had been through all of the documentation. I missed the schematic! .....bad dan! (grin)

      Dan

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