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Originally Posted by seaneyb2003
I was going to say theres a joint or splat or otherwise it could be a voltage leak! making a high pitch noise.
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High pitched noise???? No, I explained what the buzzing sound was in my first post. Not a high pitched noise but the noise of the worm drive gear slipping as the Laser carriage carried on trying to travel to the centre of the drive even when its hit it.
I suspect it was a link across one of the vias but I did a total cleanup job on the board as a whole and resoldered the Romeo mod so cannot be sure what cured it.