Wiring up the MX50SE Power amp boards

Discussion in 'General Electronics Chat' started by Meerkat 67, Sep 9, 2016.

  1. Meerkat 67

    Thread Starter Member

    Jan 29, 2015
    I have a couple of these boards that are already assembled and supposedly tested right from China.. I set up a small split power supply +- 32 volts to power this. There was no wiring diagram on how to hook everything up.. The ground terminal on each board was hooked to the chassis as well as one speaker output and the + and - power hooked to the appropriate terminal.. The power supply by itself works fine but when I power the amp, the 3 amp fuses blows..Am I missing something here ? The power supply is a simple one with a center tapped toroid and a small bridge and two 4700 MFD caps.
    It is not regulated but puts out a steady voltage...Is there instructions out there on how to hook this up or perhaps I am missing something really simple
    here... Any suggestions or a wiring diagram that I can use would be helpfull..I must be missing something here? Cheers Thanks Wayne
  2. paulktreg

    AAC Fanatic!

    Jun 2, 2008
    +32VDC > VCC
    0V > GND
    -32VDC > VEE