This must be some sort of an explosion that can blow one of them plastic cases apart like that, ever tried to open one of them cases up?.
I'd agree with Sven and Paul in saying that it is more likely to be an incorrectly connected capacitor.
They obviously never batch-tested these at the factory, before they left.
Don't you just LOVE that out-sourced, imported gear?.
[Edited to remove bad spelling error]
[This message has been edited by Trumpy (edited 09-11-2003).]