AIWA... haven't heard of that brand for a long time. dunno, but they suddenly disappeared from here Ontario. hmm.. anyway they are as good as panasonic or sony. especially i liked their superior bass.

pimpachu:
take it out. shake it and listen closely.
most likely it's the jammed lubber chain. if u r good at opening things apart,
go for it. since ur warranty's expired, why afraid playing with it?
don't pay shop just to "OPEN AND TAKE A LOOK" on it.