Home GuitarPCB Forum GuitarPCB Build Support Tap tempo (solved)

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  • #25738
    Anonymous
    Inactive

    I built the D-lay 2.5 with the Tap Tempo mod and I’ve checked everything I can think of but I can’t seem to figure out why D1 led isn’t working. Any suggestions?

    #25744
    Barry
    Keymaster

    I would post a picture or two.

    #25745
    Anonymous
    Inactive

    <p style=”text-align: right;”>Hope these help. Phone pictures</p>

    #25746
    Anonymous
    Inactive

    #25748
    wilkie1
    Moderator

    Verify that you have power and D2 is blinking.  The RATE pot is changing the speed.  If so, remove power.  Remove IC1.  Reflow the solder on all pins of IC1 socket particularly Pin 3.  That pin supplies voltage to the D1 LED.  Confirm the polarity of D1.  The cathode must connect to ground.

    #25752
    Anonymous
    Inactive

    Thanks for the suggestions. I checked voltage like you said and discovered the ground wire to D1 was bad. Replaced and works fine now.

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