Members Carlos&Cambria Posted February 5, 2009 Members Share Posted February 5, 2009 Hey allI have this problem where the sustain knob doesn Link to comment Share on other sites More sharing options...
Members drasp Posted February 5, 2009 Members Share Posted February 5, 2009 Can you take a clear photo of the solder side of the PCB? *EHX uses a board-mounted pot for the NYC Muff (and all their other old-skool stuff) - not at all uncommon for the traces to crack. Any chance the nut on the shaft is also loose? This is usually how this happens. . . *I'm pretty sure this is true, but I'm second-guessing myself. I've had 2x NYC Muffs and modified them both, but it's been a few years. Anyhow - gutshot please. Link to comment Share on other sites More sharing options...
Members Carlos&Cambria Posted February 5, 2009 Author Members Share Posted February 5, 2009 Nothing looks cracked or loose..sadly, but here is the pic, thanks for taking time for looking at this (the one on the left is the sustain) Link to comment Share on other sites More sharing options...
Members MathiasWilliam Posted February 5, 2009 Members Share Posted February 5, 2009 Hey all I have this problem where the sustain knob doesn Link to comment Share on other sites More sharing options...
Members Carlos&Cambria Posted February 5, 2009 Author Members Share Posted February 5, 2009 are you Carlos from Cobalt and Calcium?? I am "a" Carlos at Cobalt and Calcium, but havent posted there for a looong time...so probably not Link to comment Share on other sites More sharing options...
Members Instrospection Posted February 5, 2009 Members Share Posted February 5, 2009 You probably did too much rocking and the Big Muff couldn't handle it. Link to comment Share on other sites More sharing options...
Members TheLemon Posted February 5, 2009 Members Share Posted February 5, 2009 Eh, my NYC Big Muff broke on me too. Link to comment Share on other sites More sharing options...
Members MathiasWilliam Posted February 5, 2009 Members Share Posted February 5, 2009 I am "a" Carlos at Cobalt and Calcium, but havent posted there for a looong time...so probably not cooool, hey! I'm Kidamathias at both:thu: Link to comment Share on other sites More sharing options...
Members Carlos&Cambria Posted February 5, 2009 Author Members Share Posted February 5, 2009 Eh, my NYC Big Muff broke on me too.that sucks, I really like my Muff, and I was thinking of getting a new fuzz to go along with it... Link to comment Share on other sites More sharing options...
Members TheLemon Posted February 5, 2009 Members Share Posted February 5, 2009 that sucks, I really like my Muff, and I was thinking of getting a new fuzz to go along with it... Yeah, its the worst feeling. But its all good, I have one of Skreddy's muffs on the way Link to comment Share on other sites More sharing options...
Members Carlos&Cambria Posted February 5, 2009 Author Members Share Posted February 5, 2009 Yeah, its the worst feeling. But its all good, I have one of Skreddy's muffs on the way I'd kill for a lunar module ... hehe Link to comment Share on other sites More sharing options...
Members cleverbastid Posted February 5, 2009 Members Share Posted February 5, 2009 Check the stomp switch connections. The wires they use are so thin they can break just by being bent a few times. Also check the topside of the pcb. Use a multimeter to see if it's connected. Link to comment Share on other sites More sharing options...
Members Carlos&Cambria Posted February 5, 2009 Author Members Share Posted February 5, 2009 Check the stomp switch connections. The wires they use are so thin they can break just by being bent a few times. Also check the topside of the pcb. Use a multimeter to see if it's connected. Thanks for the suggestion, I'll do that tomorrow at college. I'm afraid it might be the pot though...anyone know what kind of pot the big muff uses? Link to comment Share on other sites More sharing options...
Members cleverbastid Posted February 5, 2009 Members Share Posted February 5, 2009 Thanks for the suggestion, I'll do that tomorrow at college.I'm afraid it might be the pot though...anyone know what kind of pot the big muff uses? Resistance should be marked on it once removed, pretty hard to kill a pot though. Check connections at the lugs before you take it off. Link to comment Share on other sites More sharing options...
Members BP90 Posted February 5, 2009 Members Share Posted February 5, 2009 Thanks for the suggestion, I'll do that tomorrow at college.I'm afraid it might be the pot though...anyone know what kind of pot the big muff uses? Hydroponic.:poke: Link to comment Share on other sites More sharing options...
Members TheLemon Posted February 5, 2009 Members Share Posted February 5, 2009 I'd kill for a lunar module ... hehewhile its not a muff clone, i would too oh and the NYC (and 99% of all Muffs) use 100K (linear) pots for all volume, sustain, and tone controls. Link to comment Share on other sites More sharing options...
Members Carlos&Cambria Posted February 5, 2009 Author Members Share Posted February 5, 2009 while its not a muff clone, i would too oh and the NYC (and 99% of all Muffs) use 100K (linear) pots for all volume, sustain, and tone controls. Cool, thanks for the info!I shall check the connections tomorrow with a multimeter and see if the pot is working, if its not I'll replace it if it is...I'll cry myself to sleep ... and use it as a reason to get another fuzz ... but hopefully its just a bad connection or pot. Link to comment Share on other sites More sharing options...
Members TheLemon Posted February 5, 2009 Members Share Posted February 5, 2009 Cool, thanks for the info! I shall check the connections tomorrow with a multimeter and see if the pot is working, if its not I'll replace it if it is...I'll cry myself to sleep ... and use it as a reason to get another fuzz ... but hopefully its just a bad connection or pot. Looking back on your original post I think the problem goes back to that disconnected groud wire. The ground on a potentiometer has alot to do with how it functions. Try reconnecting the wire, and give it a go. Pic for reference (ignore the red arrow): Link to comment Share on other sites More sharing options...
Members Carlos&Cambria Posted February 5, 2009 Author Members Share Posted February 5, 2009 Looking back on your original post I think the problem goes back to that disconnected groud wire. The ground on a potentiometer has alot to do with how it functions. Try reconnecting the wire, and give it a go. Pic for reference (ignore the red arrow): That actually makes a lot of sense, I shall solder tomorrow! thanks for the pic Link to comment Share on other sites More sharing options...
Members drasp Posted February 5, 2009 Members Share Posted February 5, 2009 +1 on TheLemon. Link to comment Share on other sites More sharing options...
Members Carlos&Cambria Posted February 5, 2009 Author Members Share Posted February 5, 2009 bad news, i just came back from re-soldering the loose cable (as well as anything that looked fragile or whatever), tested the sustain pot with a multimeter, the resistance DOES vary, but when I plug it the amp I have the same results as yesterday...no change in sustain at all except for a volume drop as specified in my first post...this sucks...could it be the potentiometer even though the resistance did vary when I tested it? thanks again for all the suggestions so far Link to comment Share on other sites More sharing options...
Members TheLemon Posted February 5, 2009 Members Share Posted February 5, 2009 bad news, i just came back from re-soldering the loose cable (as well as anything that looked fragile or whatever), tested the sustain pot with a multimeter, the resistance DOES vary, but when I plug it the amp I have the same results as yesterday...no change in sustain at all except for a volume drop as specified in my first post...this sucks...could it be the potentiometer even though the resistance did vary when I tested it?thanks again for all the suggestions so far So the pot causes volume drops at each far end of the sweep, but no effect in the middle? While its probably not the pot itself, it sounds like a connection problem or a component in the 1st stage is damaged. I wish I could be more help...The only thing I can suggest is to go and test connectivity for each component in the 1st stage but that could bea little time consuming. Link to comment Share on other sites More sharing options...
Members Carlos&Cambria Posted February 5, 2009 Author Members Share Posted February 5, 2009 So the pot causes volume drops at each far end of the sweep, but no effect in the middle?.That's exactly what's happening.In the middle you can hear that there is some distortion but its the same distortion in all of the sweep except on each of the far ends.I'll test the connectivity later today, thanks again Link to comment Share on other sites More sharing options...
Members TheLemon Posted February 5, 2009 Members Share Posted February 5, 2009 That's exactly what's happening. In the middle you can hear that there is some distortion but its the same distortion in all of the sweep except on each of the far ends. I'll test the connectivity later today, thanks again Hope you can fix it Link to comment Share on other sites More sharing options...
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