The reason Wanhao projector imaging failure?

In normal use, cannot display screen, generally have the following situation:

1, bulb is broken, please replace the bulb;

Objective 2, dirty, general will appear the screen is not clear;

3, optical glass damage or human change position, resulting in no projected onto the projection screen.

If the two dimension projector, may have the following two situations will not display screen:

1, video card failure, driver not installed.

2, software settings, channel improper selection, improper input format;

3, the CCD fault, or CCD power failure

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