patrick500 Posted May 4, 2019 Share Posted May 4, 2019 Hi all, I am new to the site today and have not fugured outhow to do the intro bit yest. I have a question for all you experienced players please. i have been given the above bass to learn on, however the onboard preamplifier is dead. I have approached HB support and they say there are no spares for this instrument. I am well past retirement age so I have time and can follow wiring diagrams and i am totally sound on solder work, so, the question is, does anyone know of a source of spares, or a method of wiring in another make of amplifier. The selector switch has 5 selectable positions. Regretably I cannot find a wiring diagram so I will need to trace out the connections and draw them to get an idea of what to do. I am UK based. Apologies for the long post, Kindest Regards Patrick500 Quote Link to comment Share on other sites More sharing options...
BassBunny Posted May 4, 2019 Share Posted May 4, 2019 (edited) My first thought would be that the bass has a 3 year warranty and I'm pretty sure they haven't been out for 3 years so could the original owner not return it to be fixed/exchanged? Second thought is could you have a duff battery? Looking at the control layout I would assume all the coil switching happens before the output feeds a 3 band eq that doesn't have a blend/balance control. Theoretically any 4 knob, 3 eq preamp without a blend will do the job. If you feel competent enough I would be inclined to check it isn't the switch first by routing the output direct to the jack and proving all is well with the pickups/switch. Edited May 4, 2019 by BassBunny Quote Link to comment Share on other sites More sharing options...
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