Hi all i have just purchased a 3d super woofer at a gamble of it working. but it dont work and would like some help please. right it does not power up on batt or mains but speakers pop when the power button is switched on but the operation led dosent light. looked inside and the fuses and ac converter look ok. been round it resoldering the circuits in case of a dry joint but still no joy. just need some idea of what could be wrong from someone elses experiances. looks like its been stored in a dusty damp enviroment as theres some white chalky like stuff on the printed curciuts but flakes off. thanks alot

Good news and bad news.............got it to power up it was a fuse it wasnt blown but when i checked continuity through it there was none so replaced it and wa hey must be a bad joint in the soldered part of it. but bad news is no 3d is working surround ok tho.checked speakers and they work so back to the drawing board. any ideas?