Church PA system. Powered up when hit by lightning. Still passes signal but only has extremely low level output. Where do I look first? Transformer, power transistors? Schematic not available.
On a generic level, without knowing the specifics of your equipment, I.E. amp & mixer make/model, you start at the mixers input stage. If an amplifiers output transistors die, they usually cause the amp to trip or blow a fuse, the weakest point in the system. If the amp is not doing this then the chances are, it's an line level problem, mixer related. Again, you have to list the equipment you have in order for me to be more specific.
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