Tool to be used: Allen hex socket driver or Allen wrench (2.5 mm diagonal hexagon) An Allen wrench is supplied with the ET-D75LE6 and ET-D75LE8 optional lens.
Figure 4 : Relation between the adjustment place and adjustment screw
When adjustment is complete, remove the lens and then tighten the loosened fixing screws. Install the lens and cover again to complete the focus adjustment.
9 j
1 Switch to the focus adjustment mode with the remote control, and use the ▼ button to first offset the whole focus.
2 Use the ▲ button to stop at the place that first becomes just in focus in any of the directions of the screen. (In this state, the just-in-focus point is at the back of the screen in the direction in which the focus is offset.)
3 Remove the lens cover and lens.
4 Loosen by two turns the fixing screw of the direction that is opposite the direction in which the focus is most offset (direction in which the just-in-focus point in 2 is the most offset toward the back) (see Figure 4).
Attention
• Be careful because turning a screw more than twice to loosen it will result in the spring becoming detached and the projector needing to be repaired.
• Make adjustments in up to two places, and fully turn the screw clockwise in at least one place.
5 Install the removed lens.
6 Turn the adjustment screw counterclockwise little by little and stop at the point that is in focus. Turning the screw counterclockwise moves the lens bracket of the mounter forward (screen side), which changes the tilt of the lens (see Figure 1) and moves the focus point in the projection image on the screen in the opposite direction to that of the adjustment screw.
7 Changing the tilt of the lens also changes the screen position of the projection image with regards to the screen surface, so use the remote control to switch to the lens shift adjustment mode and return the position to the optimal position.
8 Perform refocus adjustment around the centre of the screen, and make even finer adjustments of the rotation amount of the adjustment screws if the focus is still inadequate.
Adjustment procedure
z
If the lens is heavy or the projector is installed so that it is tilted, the lens may be tilted, resulting in the focus becoming unbalanced.
In such a case, refer to the figure 4 and table below, and follow the procedure below to perform adjustment.
c | V up | b |
| b+c |
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H left |
| H right |
c+(a) |
| b+(a) |
Vbottom
ac a ab
Screen
Basic Operation
Projector
Adjustment place: The place where the
When optimal focus point is | When optimal focus is at | When optimal focus is at | When optimal focus is at |
at front of screen for V up | front of screen for V bottom | front of screen for H left | front of screen for H right |
aTurn counterclockwise
b |
| Turn counterclockwise | Turn counterclockwise |
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c |
| Turn counterclockwise |
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| Turn counterclockwise | |||
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| ENGLISH – 41 | |||
