Installing and Composition

Basic Operation of the Projector

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

Projection off-set ratio:100%

Screen height (X)

Center line of lens

Projection distance (D)

RD-JT91

 

 

 

 

4:3 picture format

 

 

mm / inches

 

 

 

 

 

 

 

 

 

 

screen

40

60

80

90

100

110

120

150

200

size

 

 

 

 

 

 

 

 

 

screen

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

height (X)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

The shortest

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

distance (D)

 

 

 

 

 

 

 

 

 

 

The longest

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

distance (D)

 

 

 

 

 

 

 

 

 

 

* The longest/shortest distance show status when adjusted by the zoom function.

 

 

 

 

16:9 picture format

 

 

mm / inches

 

 

 

 

 

 

 

 

 

 

screen

40

60

80

90

100

110

120

150

200

size

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

screen

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

height (X)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

The shortest

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

distance (D)

 

 

 

 

 

 

 

 

 

 

The longest

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

distance (D)

 

 

 

 

 

 

 

 

 

 

RD-JT92

 

 

 

 

16:9 picture format

 

 

mm / inches

 

 

 

 

 

 

 

 

 

 

screen

40

60

80

90

100

110

120

150

200

size

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

screen

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

height (X)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

The shortest

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

distance (D)

 

 

 

 

 

 

 

 

 

 

The longest

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

distance (D)

 

 

 

 

 

 

 

 

 

 

* The longest/shortest distance show status when adjusted by the zoom function.

 

 

 

 

4:3 picture format

 

 

mm / inches

 

 

 

 

 

 

 

 

 

 

screen

40

60

80

90

100

110

120

150

200

size

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

screen

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

height (X)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

The shortest

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

distance (D)

 

 

 

 

 

 

 

 

 

 

The longest

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

distance (D)

 

 

 

 

 

 

 

 

 

 

13

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Image 13
LG Electronics RD-JT91, RD-JT92 owner manual Basic Operation of the Projector