Fixing broken subwoofer plate amp. Where to start?

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Got this from a friend who said it stopped working. Check the capacitors with a multimeter and everything looks fine. When I plugged it up it sparked but I had it facing away from me so I couldn't see the source.

Any ideas or tips would be great.
An externally hosted image should be here but it was not working when we last tested it.

An externally hosted image should be here but it was not working when we last tested it.

An externally hosted image should be here but it was not working when we last tested it.

An externally hosted image should be here but it was not working when we last tested it.

An externally hosted image should be here but it was not working when we last tested it.

An externally hosted image should be here but it was not working when we last tested it.


Larger versions:
http://i.imgur.com/RsMju.jpg
http://i.imgur.com/Tlfak.jpg
http://i.imgur.com/BiS69.jpg
http://i.imgur.com/9CjH0.jpg
http://i.imgur.com/KaOoZ.jpg
http://i.imgur.com/bshZT.jpg
 
Status
This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button.