Hey Guys
I have been scratching my head about this one for a day now. I have built over 100 of these and never had this happen. When the gain is off it seems to be semi normal.
as I turn up the gain it cleans up and gets a bit darker. and as I keep turning up the gain around 3 O'clock the gain comes in and is super bright and brash.
I am not sure if its a mixed up part?
Or if its a bad part?
Or if it has to do with grounding?
Is it the new style of Orange LED I used for a first time? HAHA I am really digging for the answer.
I built two in a row and put them in this enclosure and both times this was the result.
(http://i10.photobucket.com/albums/a103/sdlogan9/Debug%20PCB/photo3_zpsf6e526ad.jpg) (http://s10.photobucket.com/user/sdlogan9/media/Debug%20PCB/photo3_zpsf6e526ad.jpg.html)
Power @ the Jack 9.39 Volts
(http://i10.photobucket.com/albums/a103/sdlogan9/Debug%20PCB/photo4_zps59bbac15.jpg) (http://s10.photobucket.com/user/sdlogan9/media/Debug%20PCB/photo4_zps59bbac15.jpg.html)
Power @ the front of R28 ( 47r resistor )
(http://i10.photobucket.com/albums/a103/sdlogan9/Debug%20PCB/photo6_zps119aa677.jpg) (http://s10.photobucket.com/user/sdlogan9/media/Debug%20PCB/photo6_zps119aa677.jpg.html)
Power after passing through R28 (47r resistor )
(http://i10.photobucket.com/albums/a103/sdlogan9/Debug%20PCB/photo5_zpsb42c4edd.jpg) (http://s10.photobucket.com/user/sdlogan9/media/Debug%20PCB/photo5_zpsb42c4edd.jpg.html)
Power @ the 12v Zenner
(http://i10.photobucket.com/albums/a103/sdlogan9/Debug%20PCB/photo7_zpsf35a2a98.jpg) (http://s10.photobucket.com/user/sdlogan9/media/Debug%20PCB/photo7_zpsf35a2a98.jpg.html)
Reading of R28 (47r resistor )
Did you use the same pots both times when you put them in that box? Could be a bad gang, or something shorted to the case.
Quote from: midwayfair on January 13, 2015, 07:09:37 PM
Did you use the same pots both times when you put them in that box? Could be a bad gang, or something shorted to the case.
I have a feeling it must be somthing shorted to the case or a bad ground or something. This enclosure has a lot of paint and gloss on it. Do you think that it might not be grounding very well? Sand around the jacks? I only seem to be having problems with this enclosure.
Quote from: sdlogan9 on January 13, 2015, 08:09:29 PM
Quote from: midwayfair on January 13, 2015, 07:09:37 PM
Did you use the same pots both times when you put them in that box? Could be a bad gang, or something shorted to the case.
I have a feeling it must be somthing shorted to the case or a bad ground or something. This enclosure has a lot of paint and gloss on it. Do you think that it might not be grounding very well? Sand around the jacks? I only seem to be having problems with this enclosure.
No, your problem is clearly that the dual gang pot is malfunctioning in some way. You didn't actually answer my question -- did you use the same pots when you replaced the PCB?
Ive built a dozen or so klones on vero, and nearly all my problems came from the dual gang pot in some way.
Quote from: midwayfair on January 13, 2015, 08:41:12 PM
Quote from: sdlogan9 on January 13, 2015, 08:09:29 PM
Quote from: midwayfair on January 13, 2015, 07:09:37 PM
Did you use the same pots both times when you put them in that box? Could be a bad gang, or something shorted to the case.
I have a feeling it must be somthing shorted to the case or a bad ground or something. This enclosure has a lot of paint and gloss on it. Do you think that it might not be grounding very well? Sand around the jacks? I only seem to be having problems with this enclosure.
No, your problem is clearly that the dual gang pot is malfunctioning in some way. You didn't actually answer my question -- did you use the same pots when you replaced the PCB?
I actually used a different Dual gang pot when I re-built it. I did build another pedal yesterday and everything worked as it should! ???