Beiträge von paul525715

  • Footswitch problem

    Re: Footswitch problem

    As far as I can tell, yes. The diodes are the right way around and the resistors are the right ones. The relays are the correct way around (well, they only fit one way!) and the transistors are as per the PCB.

    Paul

  • Footswitch problem

    I've successfully managed to build my M15 amp. ;D Great sound!

    However, I can't get the footswitch to work... for changing the channels or switching fat on and off.

    I've installed the power board, the jack board and the two switches and the switches work fine manually. The LED is on when the amp is on channel 1 and off when the amp is on channel 2, and on when the channel is not fat and off when fat is added.

    But... when I plug the footswitch in, nothing happens. The lights on the footswitch work but they do not change the amp switches. I've checked my wiring. It seems ok.

    For what it's worth...

    The output from the power board is approximately 12 volts DC
    The output from the jack board on CN2 and CN3 white relay wire is approximately 12V DC
    The output from the black wire (SW wire) never seems to change. It's always 0V.

    Can someone help me get this working?

    Thanks,

    Paul