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  • May 2, 2020 at 2:36 am #126037
    Fender&EHX4ever
    Moderator

    The IC that came with it is a 4001.
    The unit makes a clicking sound and the rate knob works, but it’s barely audible, and the tone switch does nothing.
    What other component would be suspect if not the IC?

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    May 2, 2020 at 10:13 am #126039
    Scruffie
    Member

    First off, unless you’re wearing an anti-static band, don’t handle that chip like that, CMOS are very static sensitive.

    Second, while I haven’t traced it yet, a 4001 is a reasonable chip to be in there and you have ticking so there’s absolutely no reason to be suspicious of the chip I can see.

    I would first be suspect of the switch itself so test it for continuity with your multimeter (middle pin should switch between the two outer pins with the switch) and the two tantalum capacitors in there, one is the turquoise cap, the other is the black one standing up.

    May 3, 2020 at 9:30 pm #126040
    Fender&EHX4ever
    Moderator
    Quote:
    First off, unless you’re wearing an anti-static band, don’t handle that chip like that, CMOS are very static sensitive.

    Second, while I haven’t traced it yet, a 4001 is a reasonable chip to be in there and you have ticking so there’s absolutely no reason to be suspicious of the chip I can see.

    I would first be suspect of the switch itself so test it for continuity with your multimeter (middle pin should switch between the two outer pins with the switch) and the two tantalum capacitors in there, one is the turquoise cap, the other is the black one standing up.

    Awesome. Thank you for taking the time to assist me!

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