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I have a system 3 that has a very high pitched squeal sound coming from the DMD itself. At first I thought the sound was emitting from the speakers, but it is indeed the display. When the plug behind the display labeled A4J1 is disconnected the sound goes away due to the display no longer being powered on. Anyone here ever seen this symptom before?? The display works fine other wise and I'd hate to drop another $200 on a new display just because of a noise.
Quoted from ForceFlow:Before you put in a replacement DMD, just check that the voltage levels are ok.
How would I go about doing that??
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