Korg Trinity, quiet buzzy sound out of all...

I have recently acquired a Korg Trinity Plus... reaalllly excited about it... but heres the problem I've run into: Barely any sound on any of the outputs! At first I thought it was just a bad solder joint... typical problem but all of them not working? Including headphones? ... also, when turning the volume all the way up, you can hear it... but its VERY quiet. When on synth patches, and hitting more then one key, it gets louder..but buzzy and nasty...

So... I found out about the self test thing... went into that.. and I get sound!

The local mode box is checked... I suppose it could still be a weak connection somewhere... only allowing the higher power signals through?

But I'm not sure.. couldn't find a lot of information on this around the web.


Any of you guys got any ideas?