sharp lcd projector pga-10x

Hi, Has anyone ever solved the power tripping off problems in these? I have

2 pcs with similar symptoms, one of them also suddenly goes into sync loss too. I think the fault lies somewhere in the periphery of the image processor , PW164B-10TK which is a damn bga pack. At times the fault seems like a loose connection and at times no amount of tapping on the ic or its periphery will force the fault to appear. I so miss the good ole days when ics had legs. Jango
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jango2
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