Currently having an issue where a c754 won’t completely turn on. Blank screen. But when the main switch is turned on the machine shows power but nothing to the screen or to show that it’s fully on. The MFP board was changed without luck, the prcb was changed without luck and also the high voltage board. All of those parts came out of a working C654 That I had removed and IH board from. Any suggestions, am I looking in the wrong place or is it that the machine is totaled. Customer originally reported that they had a surge of power when lighting hit during a thunder storm. The machine never came back up. Now I’ve put the boards back in the original copier and now it seems to have the same issue. 😩
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