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  • July 5, 2011 at 11:58 am #81728
    oscillator
    Member

    Hi, there seems to be a problem with my Nano Small Stone. I bought it about a year ago, and it has not exhibited this problem in a while; however, it does this regularly.

    Sometimes when I turn the Rate knob to its maximum value, I hear a relatively loud buzzing noise and there is almost no phaser effect to be heard. On some occasions, this persists even if I turn the Rate knob to another position!
    When it starts acting up like this, I can usually remedy the situation by unplugging the adapter and plugging it back in.

    What is wrong with my Nano Small Stone?

    Thanks,
    oscillator

    August 17, 2013 at 5:24 am #119314
    Alistair
    Participant
    Quote:
    Hi, there seems to be a problem with my Nano Small Stone. I bought it about a year ago, and it has not exhibited this problem in a while; however, it does this regularly.

    Sometimes when I turn the Rate knob to its maximum value, I hear a relatively loud buzzing noise and there is almost no phaser effect to be heard. On some occasions, this persists even if I turn the Rate knob to another position!
    When it starts acting up like this, I can usually remedy the situation by unplugging the adapter and plugging it back in.

    What is wrong with my Nano Small Stone?

    Thanks,
    oscillator

    Did you ever get an answer? I am having a similar problem….

    February 22, 2016 at 5:54 am #121285
    F.W.A.N.O.
    Member

    Hi everyone!

    I have exactly the same problem with a EH4800 NANO,
    all SMD version with two LM13700 and two TLC2272 op-amps.

    Has anyone cracked this one?

    I found no relevant info (not even a schematic for this version)
    elsewhere on the net so before i start removing and ordering
    spare parts i thought it would be appropriate to ask other people
    and see what they got.

    My guess: a bad TLC2272 chip, the one near the pot and power plug,
    but any of the other IC’s could be faulty as well.

    Thanks for any feedback.

    Regards

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