Home › Forums › Help/Technical Questions › Graphic-Fuzz click when engaged
- This topic has 11 replies, 4 voices, and was last updated 13 years, 9 months ago by ranjam.
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November 15, 2010 at 11:14 pm #80998raphrelMember
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 #112599The EH ManModeratorYou 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 #112600raphrelMemberHi,
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 #112603The EH ManModeratorQuote: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 #112653raphrelMemberHi,
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 #112667dsl1MemberHave 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 #112673raphrelMemberHi,
Yep I tried to switch on/off many times…
I don’t know what to do.
Raf
November 21, 2010 at 3:10 pm #112683ranjamMemberAdd 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 #112723raphrelMemberhey 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 #112724The EH ManModeratorA 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 #112725raphrelMemberThe 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 #112734ranjamMemberIf 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. -
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