I recently populated a single sided V4 aristocrat board and I can't get it working correctly. I've built a gillion pedals and I've exhausted all my troubleshooting talent trying to get it running.
I got the thing wired up and in an enclosure and when I fired it up (weather battery or DC) I get strange results. Firstly, I can hear the distorted signal but it's at a vastly lower volume than unity even with the volumes turned up. Secondly, the volume only fluctuates over a very small portion of the pot's travel. Thirdly, if I turn the volume up all the way, the sound completely shuts off.
I populated a second board and measured the value of every component before soldering it in so I could compare it to the first build and everything seems identical (I haven't wired the second board up yet). I'm using the 4580 chips but the same thing happened with 4550s.
I replaced the pots, tried rewiring the power/ground scheme and searched the forum but man, this has got me stumped.
I will post voltages next time I have the board in front of me but has anyone heard of such a thing? Any ideas where to go from here?
Thanks in advance.
I got the thing wired up and in an enclosure and when I fired it up (weather battery or DC) I get strange results. Firstly, I can hear the distorted signal but it's at a vastly lower volume than unity even with the volumes turned up. Secondly, the volume only fluctuates over a very small portion of the pot's travel. Thirdly, if I turn the volume up all the way, the sound completely shuts off.
I populated a second board and measured the value of every component before soldering it in so I could compare it to the first build and everything seems identical (I haven't wired the second board up yet). I'm using the 4580 chips but the same thing happened with 4550s.
I replaced the pots, tried rewiring the power/ground scheme and searched the forum but man, this has got me stumped.
I will post voltages next time I have the board in front of me but has anyone heard of such a thing? Any ideas where to go from here?
Thanks in advance.