LG RD-JT91 - Manual (Page 13)

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
Center line of lens
Screen height (X)
Projection distance (D)
Projection off-set ratio:100%
Basic Operation of the Projector
* The longest/shortest distance show status when adjusted by the zoom function.
screen
size
screen
height (X)
The shortest
distance (D)
The longest
distance (D)
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 9152/360.3
RD-JT91 RD-JT91
* The longest/shortest distance show status when adjusted by the zoom function.
screen
size
screen
height (X)
The shortest
distance (D)
The longest
distance (D)
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
1780/70.1 2680/105.5 3580/140.9 4030/158.7 4480/176.4 4931/194.1 5380/211.8 6730/265 8980/353.5
2140/84.3 3220/126.8 4300/169.3 4840/190.6 5380/211.8 5920/233.1 6460/254.3 8080/318.1 10780/424.4
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 2490/98.0
1450/57.1 2190/86.2 2920/115 3290/129.5 3660/144.1 4030/158.7 4390/172.8 5500/216.5 7340/289
1740/68.5 2620/103.1 3510/138.2 3950/155.5 4390/172.8 4830/190.2 5270/207.5 6600/259.8 8800/346.5
RD-JT92 RD-JT92