[quote name='Ghost_Bass' timestamp='1330516127' post='1558595']
My TRB5PII also has some residual sound with the volume rolled off but i find it could be due to the piezzo. As for the battery mine also eats a lot of battery, i think it's using an average of 3 per year and i find it too much when comparing to other basses i had that would endure more than a year with the same battery. Just make sure that you disconnect the jack every time you're not playing and always carry a spare battery with you, if it fails during a gig it's a 30sec fix between songs. I can tell that my battery is dying because it adds a tiny feedback to the sound, just enough to tell that it's going but perfectly acceptable to finish a song without the audience noticing.
These little problems don't bother me much and i can live with them (as long as batterys are cheap), the sound is too good for me to get too picky with the bass.
If you really want to get rid of these problems then a can only advise you to replace the electronics of your bass but it wont sound the same afterwards...
Cheers
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I have 2 Yamaha TRB5pII's and i have never had this issue with mine.
not really helpfull for a possible repair , but i just wanted to share.