lots of things to check. when you push the power button can you hear a "click"??? this is line relay opening and closing. if answer is yes the cpu (microprocessor) is running. so look for blown fuses on power supply board. if fuses are blown look for shorted power amp transistors. use volt meter to check for B plus/minus on collectors. now if now click is NOT heard when pushing power button troubleshoot standby 5v power supply. is 5v there??? shoot cpu. no 5v??? shoot power supply. including the standby 5v power transformer. seen this open up from lightning damage. also ohm out primary of big power transformer. ive seen these open up. got service manual??? if no get one before attempting ANY repairs. luck

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