Projected image is too small or too large for the screen

Symptoms

• Image doesn't fill the screen
• Image spills over the edges of the screen
• Zoom ring at its limit and still wrong size
• Image size changed after moving furniture

Likely causes

• CommonProjector positioned at the wrong distance from the screenImage size scales directly with throw distance; moving the projector changes it.
• CommonZoom not adjustedMost projectors have a zoom ring or digital zoom that resizes the image at a fixed distance.
• PossibleAspect ratio setting mismatched to the screenA 16:9 image on a 4:3 screen (or vice versa) leaves bars or overflow.
• PossibleWrong screen size for the room/throw distanceA screen bought for a different setup may not match this projector's throw ratio.

What to do

1. Check the manual's throw-distance-to-image-size chart for your model.
2. Move the projector closer to shrink the image or farther to enlarge it, staying within the supported range.
3. Adjust the zoom ring or digital zoom setting to fine-tune size at the current distance.
4. Check the aspect ratio setting in the menu and match it to your screen's shape.
5. Refocus after any zoom or distance change, since these interact with focus.
6. If the throw distance needed doesn't fit your room, consider a short-throw projector or a smaller/larger screen.

Tools and parts

• Tape measure

When to call a pro

Not typically needed; a home theater installer can help if room constraints make throw distance difficult.

Safety