ViewSonic PX800HD - Troubleshooting Common Issues; Projector Does Not Turn On; No Picture Displayed; Blurred Image Resolution

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Specifications
Dimensions
387.7 mm (W) x 169.4 mm (H) x 432.7 mm (D) (Including extrusions)
Ceiling mount installation
432.7
169.4
387.7
Unit: mm
PULL
75
184
Ceiling mount screws:
M4 x 8 (Max. L = 8 mm)
Unit: mm