thanks toneman and billbee - I checked the link re: swapping the internals. Not my strong suit - so may need to look for another option. Unfortunately I don;t think there are any authorised Line 6 service repairers in Melbourne so I may just need to look at buying an overseas power converter/adaptor that the other Aussie in that link was using prior to get the internals changed. Seemed to be working for them.
thanks again