How do I fix my JBL Power Boss PB10?

My subwoofers power lights no longer light up. I opened it up and the fuse inside looks ok and nothing looks out of the ordinary. Not sure how I can find out whats wrong with it, whether its a power thing or a fried chip of some sort. PS. You should add a category for stereo equipment.
Dallas, December 2004


done
ok the lights are fuses most are leds light emitting diodes test lights replace if gone same bulb

eamon, January 2005