Home › Forums › Help/Technical Questions › Graphic-Fuzz click when engaged

Viewing 12 posts - 1 through 12 (of 12 total)
  • Author
    Posts
  • November 15, 2010 at 11:14 pm #80998
    raphrel
    Member

    Hi,

    Since I got it, my Graphic Fuzz make a click when I enegaged the bypass button.
    I have the old one.

    Except this, it seems to work perfectly.
    How can I repair this ??

    November 15, 2010 at 11:43 pm #112599
    The EH Man
    Moderator

    You may need to replace the output capacitor. If it’s leaking voltage it’ll cause a loud click.

    November 15, 2010 at 11:46 pm #112600
    raphrel
    Member

    Hi,

    Thanks for the information.
    Can you tell me where the capacitor is on the board ?
    Which microF/Voltage is ?

    Thanks

    November 16, 2010 at 1:40 am #112603
    The EH Man
    Moderator
    Quote:
    Hi,

    Thanks for the information.
    Can you tell me where the capacitor is on the board ?
    Which microF/Voltage is ?

    Thanks

    C38. It’s a 1uf.

    November 19, 2010 at 9:58 am #112653
    raphrel
    Member

    Hi,

    I did it.
    Still the same click when engaged.

    Do you have another idea ??

    I have the old one stuff, with the 40v DC power supply

    Thanks

    November 20, 2010 at 8:28 am #112667
    dsl1
    Member

    Have you tried turning the pedal on & off a few times? Many of my true bypass
    pedals stop “clicking” after doing this.

    November 20, 2010 at 5:05 pm #112673
    raphrel
    Member

    Hi,

    Yep I tried to switch on/off many times…

    I don’t know what to do.

    Raf

    November 21, 2010 at 3:10 pm #112683
    ranjam
    Member

    Add a pull-down resistor if it’s the original switching, and if you or the original owner went and made it true bypass (BOOOOO! :nono:)…….. http://www.geofex.com/article_folders/bypass/bypass.htm.
    and this…..
    http://www.muzique.com/lab/led.htm.

    November 24, 2010 at 1:29 pm #112723
    raphrel
    Member

    hey Ranjam,

    Thanks for information.
    I don’t know what is a pull-down resistor and where i need to solder it.

    Something more : I noticed that I have something wrong with the volume of the Graphic-Fuzz pedal.
    If I play and engaged the pedal, sometimes the sound is strong less like if I put down a little bit the volume slider of the pedal. Maybe a bad connection but everything looks good inside so….

    This information may help you to solve the riddle of the click when engaged ??

    Thanks

    November 24, 2010 at 1:41 pm #112724
    The EH Man
    Moderator

    A click when switching involves changing levels is also normal. With the volume slider at 0 see if it has a loud click.

    November 24, 2010 at 1:49 pm #112725
    raphrel
    Member

    The click has no relation with the volume slider.
    Sound is the same regardless fader is at 0 or full up.

    November 24, 2010 at 11:33 pm #112734
    ranjam
    Member

    If it’s an input capacitor discharging as the footswitch connects the input signal to the first stage (as in a true bypass scenario), a pull-down resistor soldered between the input circuit and ground gives the capacitor a path to gently charge and discharge. Any high value will do, but something like 2.2Meg or 4.7Meg seems popular if you haunt other pedal forums.
    Also, that second link tells you the LED charging may also contribute noise, so the ‘mod’ there handles that with a current limiting resistor added and an extra filter to smooth things out.

  • Author
    Posts
Viewing 12 posts - 1 through 12 (of 12 total)
  • You must be logged in to reply to this topic.