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Brand new battery. Power cord has the correct output. Will not power up. What component is common to go bad? I can get parts and can solder well. Spawlak1@gmail.com
@stevep1 there really is not a common part that fails. You will have to open it up and check the circuit board for anything does looks damaged i.e. bad capacitors etc. Post some good pictures of your board with your QUESTION so we can help you with further troubleshooting. Harman Kardon Onyx Studio 2 Circuit Board Replacement Adding images to an existing question
