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Projects => Beginner Project => Topic started by: cat on August 30, 2006, 11:11:50 PM

Title: Bypass works, effect doesnt?
Post by: cat on August 30, 2006, 11:11:50 PM
Hi all,

I have a problem. Ive populated the circuit board and hooked it up to a DPDT like this:

(http://i3.photobucket.com/albums/y78/noor_noor/DPDTCONNECTION.jpg)

When I plug the pedal in, and the effect is off its fine.

When I switch the pedal on, it cuts off the sound and the volume pot does nothing.

I figure this means that my jacks are hooked up correctly. Is it a problem with my circuit then?

Any ideas?

Cat
Title: Re: Bypass works, effect doesnt?
Post by: cat on August 31, 2006, 01:12:56 AM
OK I forgot to put the tranny in  ::)

Im still having issues though. With the tranny in, it only gives me short, very loud, very distored, bursts of sound.

Any ideas?

Cat
Title: Re: Bypass works, effect doesnt?
Post by: jonathan perez on August 31, 2006, 01:22:44 AM
make sure you have it in the right way.
Title: Re: Bypass works, effect doesnt?
Post by: cat on August 31, 2006, 01:43:02 AM
Cool, Ive got the Tranny the right way.

Still got problems:

When I turn the pedal on, i can faintly hear my guitar if i strumm lightly, if it bash the strings however the pedal seems to kick in and it gives me this intermittant, extremely distorted, bass farting out type sound.

Cat
Title: Re: Bypass works, effect doesnt?
Post by: aron on August 31, 2006, 02:42:24 AM
You have the classic misbiased transistor.

Here you go:

http://www.diystompboxes.com/smfforum/index.php?topic=29816.0
Title: Re: Bypass works, effect doesnt?
Post by: cat on August 31, 2006, 03:02:37 AM
I am missing something here.

Going through the test list.

There is no "circuit board end of the black battery lead". Also what is C1, C2 etc?

Cat
Title: Re: Bypass works, effect doesnt?
Post by: cat on August 31, 2006, 03:43:41 AM
Multi set on 20 DCV. Battery plugged in. Lead plugged in. These are the readings I got.

(http://i3.photobucket.com/albums/y78/noor_noor/readings.jpg)

Cat