EPSON PowerLite 5350/7250/7350 Projector
Long Throw Zoom Lens Calculations
If you are using the optional long throw zoom lens, use the following formulas.
To determine the minimum and maximum diagonal size of an image when you know the projection distance:
❏Inches:
Maximum diagonal size = (0.4742 × projection distance) + 3.2489 Minimum diagonal size = (0.2849 × projection distance) + 1.8968
❏Centimeters:
Maximum diagonal size = (1.2045 × projection distance) + 8.2521 Minimum diagonal size = (0.7236 × projection distance) + 4.8179
To determine the projection distance when you know the diagonal size of the screen image:
❏Inches:
Maximum projection distance = (3.5094 × diagonal size) − 6.6568 Minimum projection distance = (2.1090 × diagonal size) − 6.8519
❏Centimeters:
Maximum projection distance = (8.9139 × diagonal size) − 16.9083 Minimum projection distance = (5.3569 × diagonal size) − 17.4038
Fixed Wide Angle Lens Calculations
If you are using the optional fixed wide angle lens, use the following formulas.
To determine the minimum and maximum diagonal size of an image when you know the projection distance:
❏Inches:
Maximum diagonal size = (0.730 × projection distance) + 3.919 Minimum diagonal size = (0.616 × projection distance) + 3.050
❏Centimeters:
Maximum diagonal size = (1.8542 × projection distance) + 9.9542 Minimum diagonal size = (1.5646 × projection distance) + 7.7470
To determine the projection distance when you know the diagonal size of the screen image:
❏Inches:
Maximum projection distance = (1.619 × diagonal size) - 4.702 Minimum projection distance = (1.367 × diagonal size) - 5.640
❏Centimeters:
Maximum projection distance = (4.1122 × diagonal size) - 11.9430 Minimum projection distance = (3.4721 × diagonal size) - 14.3256
Projector Status Lights
The status lights on top of the projector tell you the projector’s operating status.
power light | projection lamp light |
temperature light
Caution: A red light warns you if a serious problem occurs.
Power Light
Light status | Meaning |
|
|
Steady orange | Sleep mode. (The projector is plugged in, but not |
| projecting.) |
Steady green | Power and lamp are on. |
Flashing green | The projector is warming up. Allow about 30 seconds. |
Flashing orange | The projector is cooling down. |
Off | The power cord is not plugged in, there is no power to |
| the electrical outlet, or there is an internal projector |
| problem. |
|
|
Projection Lamp Light
Light status | Meaning |
|
|
Orange and | Projection lamp needs replacing. |
red flashing |
|
alternately |
|
Steady red | Projection lamp has burned out. Replace lamp. |
Flashing red | Problem with projection lamp or lamp power supply. |
Off | Lamp is functioning normally. |
|
|
Temperature Light
Light status | Meaning |
|
|
Flashing orange | Projector is too hot. |
Steady red | Projector has turned off automatically because of |
| overheating. |
Flashing red | Problem with the cooling fan or temperature sensor, |
| causing overheating. |
Off | The projector is functioning normally. |
|
|
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