Alternate Part Numbers UHD50X DMD, 1910-5537B, 1910-553AB, XUHD50X DMD, X1910-5537B, X1910-553AB. Board Numbers UHD50X DMD, 1910-5537B, 1910-553AB, XUHD50X DMD, X1910-5537B, X1910-553AB. DIY repair for the "white dot" issue many face with projectors!
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