Epson PRO L1490U User Manual page 129

Make sure that you aim the remote control at the projector's receivers within the angles listed here.
1 98.4 feet (30 m)
2 82.0 feet (25 m)
3 65.6 feet (20 m)
4 ±60°
5 ±30°
6 ±15°
7 30°
8 10°
9 ±20°
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