EKO Posted May 26, 2007 Report Share Posted May 26, 2007 Hi there i recently bought a 'vintage (thats the make) v940 fretless active bass' now when this bass works it sounds amazing. but after about 10 mins of playing i get this really loud crackling popping sound which comes and goes. it sounds sort of digital to me (although im not very knowledgeable with electronics) because the sound is very random and not constant. its there even when the volume pot is all the way off. ive tried the bass with many different leads and amps so im sure its the bass. it has 1 volume, 1 bass 1 treble active EQ, and 1 active blend (sort of a fader between the p-bass pickup and the jazz pickup. also when i opened the back up i found there was no sheilding foil, although the cavity is coated in this heavy black paint.? i hope i have explained whats happening clear enough. any help or hints in the right direction would be great. i got this bass for a about £140 second hand so i dont really want to spend £50+ on brand new electronics! thanks Quote Link to comment Share on other sites More sharing options...
IbanezFreak666 Posted May 26, 2007 Report Share Posted May 26, 2007 is there foil on the cover? check for any loosely connected wires. Quote Link to comment Share on other sites More sharing options...
EKO Posted May 27, 2007 Author Report Share Posted May 27, 2007 is there foil on the cover? check for any loosely connected wires. yeah did that, even resoldered most of them. there is no foil on the cover. just that black paint i described. Quote Link to comment Share on other sites More sharing options...
IbanezFreak666 Posted May 27, 2007 Report Share Posted May 27, 2007 well the black paint is sheilding paint and does the same job as the foil.... but i dunno sorry. Quote Link to comment Share on other sites More sharing options...
Samba Pa Ti Posted May 27, 2007 Report Share Posted May 27, 2007 (edited) does the bass have Preamps inside it ? it sounds like the electronics are getting hot and then starting to sound a bit crap, i cant be sure though just a guess. it could be the other active electronics if they are getting too hot. Edited May 27, 2007 by Samba Pa Ti Quote Link to comment Share on other sites More sharing options...
EKO Posted May 27, 2007 Author Report Share Posted May 27, 2007 does the bass have Preamps inside it ? it sounds like the electronics are getting hot and then starting to sound a bit crap, i cant be sure though just a guess. it could be the other active electronics if they are getting too hot. im not sure about a preamp but the EQ controls have a sticky settling point which is full output, more than that and its adding to the signal, less and its just like a normal passive control. it is like spaghetti in there... might be getting hot that way. Quote Link to comment Share on other sites More sharing options...
EKO Posted May 31, 2007 Author Report Share Posted May 31, 2007 well the black paint is sheilding paint and does the same job as the foil.... but i dunno sorry. if this was the case how would i find out / fix it? Quote Link to comment Share on other sites More sharing options...
EKO Posted June 3, 2007 Author Report Share Posted June 3, 2007 can nobody help me out? i dont really want to go on stage with it this condition! Quote Link to comment Share on other sites More sharing options...
nzdutchie Posted June 5, 2007 Report Share Posted June 5, 2007 can nobody help me out? i dont really want to go on stage with it this condition! If you can see the individual components on the active circuit board, you could check or reheat all the solder cause you may have a dead or dying joint. If that doesn't work try replacing the electrolytic capacitors, they can dry out over many years. Good luck. Quote Link to comment Share on other sites More sharing options...
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