No.51666
Installing the Projector (Cont.)
Projection Distances and Screen Sizes
Lenses that can be used are a 3 : 1 ~ 7 : 1 zoom lens and a 1.5 : 1
For how to install the lens, consult the dealer who installed and adjusted your projector or service center.
Relationship of screen width vs. projection distance
| 600 |
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| WIDE 3:1 |
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| 500 |
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Screen Size | 400 |
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(Type) | 300 |
| 1.5 : 1 |
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| TELE 7:1 |
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| 200 |
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| Zoom Lens |
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| 100 |
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| Projection |
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| Distance (m) |
| 0 | 5 | 10 | 15 | 20 | 25 | 30 | 35 | 40 | 45 |
In the shaded areas 
in the above graph, the projected image may be partially distorted or missed out depending on the distance between the projector and the screen. To project an image with no image distortion or missing, we recommend you to use the projector in the areas defined with solid lines in the graph.
Adjustable range of the lens
Lens |
| Screen Size (Type) | Projection Distance (m) | Remarks | |||
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80 | – 300 | 5.06 | – 18.65 | 3:1 wide | |||
(80 | – 600) | (5.06 | – 37.19) | ||||
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| 60 | – 200 | 8.65 | – 28.56 | 7:1 tele | |
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| (60 | – 300) | (8.65 | – 42.79) | ||
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69 | – 208 | 2.09 – 6.50 | |||||
(65 | – 250) | (1.97 – 7.83) | |||||
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The numbers in ( | ) represent the minimum to maximum adjustable range. |
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Connecting to Various Devices
*Before connection, be sure to turn off the projector and connected devices.
*Read the manual which comes with each device thoroughly.
Signals that Can Be Input to the Projector
The following signals can be input to the projector:
■Video signals
(1) Response to color systems
Color system | NTSC 480i | NTSC4.43 | PAL | SECAM | |
Input terminal | |||||
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VIDEO*3 | ‡ | ‡ | ‡ | ‡ | |
Y/C*3 | ‡ | ‡*1 | ‡ | - - - - - | |
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Y, | ‡*2 | ‡*2 | ‡*2 | ‡*2 | |
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G, B, R, H/CS, V | ‡*2 | ‡*2 | ‡*2 | ‡*2 |
*1 | : Responds if Y/C output is available. |
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*2 | : Signifies that component signals (“Y, PB, PR ” / “ Y, | ||||||
| tion and video period) of each color system. The color systems are used for convenience only. |
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*3 | : To use these terminals, a video board (separately sold) is required. |
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(2) Response to double density (*1), |
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Input terminal |
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| PAL*3 |
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Y, |
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G, B, R, H/CS, V |
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*1 : Signals whose density of scanning lines/field is twice as high.
*2 : Responds to signals whose horizontal scanning frequency is 31.5 kHz. NTSC can be made twice as dense by a line doubler (separately available: recommended article). Also, possible to respond to
*3 : Responds to signals whose horizontal scanning frequency is 33.5 kHz. PAL can be made twice as dense by a line doubler (separately available: recommended article).
■Computer signals
•Signals with the following resolutions can be input to the input terminal of RGB
Screen resolution (standard name) | Horizontal frequency | Vertical frequency | Scanning method | |||
640 | ⋅ 400 | 24.8kHz | 56.4Hz | |||
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640 | ⋅ 350 | (VGA1) | 31.5kHz | 70.1Hz | ||
640 | ⋅ 480 | (VGA3) | 31.5kHz | 59.9Hz | ||
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640 | ⋅ 480 | (Macintosh 13”) | 35.0kHz | 66.7Hz | ||
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640 ⋅ 480 (VGA VESA) | 37.5kHz | 75.0Hz | ||||
800 | ⋅ 600 (SVGA1) | 37.9kHz | 60.3Hz | |||
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800 | ⋅ 600 (SVGA2) | 48.1kHz | 72.2Hz | |||
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832 | ⋅ 624 (Macintosh16”) | 49.7kHz | 74.6Hz | |||
1024 | ⋅ 768 (XGA1) | 48.4kHz | 60.0Hz | |||
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1024 | ⋅ 768 (XGA2) | 56.5kHz | 70.1Hz | |||
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1024 | ⋅ 768 (Macintosh 19”) | 60.2kHz | 74.9Hz | |||
1152 ⋅ 870 (Macintosh 21”) | 68.7kHz | 75.0Hz | ||||
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1280 | ⋅ 1024 (SXGA1) | 64.0kHz | 60.0Hz | |||
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1280 | ⋅ 1024 (SXGA2) | 70.8kHz | 67.0Hz | |||
1360 | ⋅ 1024 (SXGA3: Mac Board) | 80.0kHz | 75.1Hz | |||
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Notes
•Interlace signals are not handled.
•Some signals other than listed above can be displayed. But they require adjustment. Even some of the signals listed above may require adjustment depending on the video board used.
•When a signal other than listed above is input, the screen could be partially erased or an unneeded
•Even signals in the frequency range that can be input may not be displayed normally depending on the type of the signal.
•Composite sync.(Cs) and G on sync. signals can not handled depending on the devices connected.
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