[quote name='Zenitram' timestamp='1395771628' post='2406111']
Well, I solved the problem. This is what I did to solve it, in case it helps others who read this:
I took the bass to bits, looked at the wiring, saw that it all seemed good, wondered about de-soldering it all and rewiring it up again and replacing the pot at the same time, decided against doing any of that, put everything back together again having basically done nothing, and the problem has now gone and it sounds great and works perfectly.
Thanks for all your help everyone.
[/quote]
Wouldn't it be splendid if all repairs could be carried out using this method?