How do I enable Auto Screen Alignment on the HORIZON 30 Series?

Auto Screen Alignment automatically fits the projected image to a compatible 16:9 projection screen during Auto Keystone Correction.
To enable Auto Screen Alignment
1. Press the Settings button on the remote to open Quick Settings, then select All Settings.
2. Go to: Projector > Keystone
3. Select Keystone Settings.
4. Turn on Auto Screen Alignment.
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Using Auto Screen Alignment
If Auto Keystone upon Motion is enabled:
- Position the projector so the projected image completely covers the screen.
- The projector will automatically align the image to the screen.
If Auto Keystone upon Motion is disabled:
1. Position the projector.
2. Go to: Projector > Keystone > Auto Keystone Correction

Run Auto Keystone Correction manually.
If further adjustments are needed after alignment, select Manual Keystone Correction to fine-tune the image.
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Notes
- The default projected image must completely cover the projection screen before alignment begins.
- The projected image displayed on the screen must cover more than half of the projector's default projection area.
- For best results, use a projection screen with a black border.