LG Electronics RD-JT91 Projector User Manual


 
Installing and Composition
13
1.Place the projector on a sturdy and horizontal surface with the PC or AV source.
2.Place the projector the correct distance from the screen. The distance between the projector and the
screen determines the actual size of the image.
3.Position the projector so that the lens is set at a right angle to the screen. If the projector is not set at a right
angle, the screen image will be crooked. If this is so then the keystone adjustment may correct this (Refer to
page 22.)
4.Connect the cables of the projector to a wall power socket and other connected sources.
projection distance based on the picture format
* The longest/shortest distance show status when adjusted by the zoom function.
Center line of lens
Screen height (X)
Projection distance (D)
Projection off-set ratio:100%
screen
size
screen
height (X)
The shortest
distance (D)
The longest
distance (D)
Basic Operation of the Projector
4:3 picture format mm / inches
40 60 80 90 100 110 120 150 200
610/24.0 914/36.0 1219/48.0 1372/54.0 1524/60.0 1676/66.0 1829/72.0 2286/90.0 3048/120.0
1400/55.1 2100/82.7 2800/110.2 3150/124.0 3500/137.8 3850/151.6 4200/165.4 5250/206.7 7000/275.6
1680/66.1 2520/99.2 3360/132.3 3780/148.8 4200/165.4 4620/181.9 5040/198.4 6300/248.0 8400/330.7
screen
size
screen
height (X)
The shortest
distance (D)
The longest
distance (D)
16:9 picture format mm / inches
40 60 80 90 100 110 120 150 200
498/19.6 747/29.4 996/39.2 1121/44.1 1245/49.0 1370/53.9 1494/58.8 1868/73.5 2491/98.1
1525/60.0 2288/90.1 3051/120.1 3432/135.1 3813/150.1 4194/165.1 4576/180.2 5720/225.2 7626/300.2
1830/72.0 2745/108.1 3661/144.1 4118/162.1 4576/180.2 5033/198.1 5491/216.2 6864/270.2 4152/163.5