Sony BRAVIA VPL-VW70 Mode D'emploi page 72

Black points and bright points (red,
blue, or green) on the screen
The projector is manufactured using high-
precision technology.
You may, however, see tiny black points
and/or bright points (red, blue, or green) that
continuously appear on the projector.
This is a normal result of the manufacturing
process and does not indicate a malfunction.
72
GB