Optoma DC300i - Manual (Page 27)

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12. TROUBLE-SHOOTING:
Symptoms Possible causes/counter-measures
No image 1. Power cord is not properly connected.
2. Cables are not properly connected.
3. Power switch is not turned on.
4. The built-in fuse is broken: Change fuse.
5. Change the output resolution.
Image bending 1. Camera not in right position, adjust the camera.
2. Press the AUTO
Out of focus or blurring
image
1. The object is too close to the lens.
2. Focus is on the top point of zoom, press ZOOM-.
3. Auto-focus is not on: press AUTO again.
4. Fog on the lens in damp climate. It will disappear
gradually when the equipment warms up.
If the problem still remains after checking the above, consult your dealer or authorised service
personally.