Eiki LC-X71 LC-X71L Optical Adjustments, Contrast adjustment, R/G/B-Contrast Adjustment, 2

Optical Adjustments

Before taking optical adjustments below, remove the Cabinet Top and Main Board following to the “Mechanical Disassemblies”

Adjustments require a 2.0mm hex wrench and a slot screwdriver.

Note: Do not disconnect connectors K8L, K8X, K8D, K8G and K8E on the main board, because the projector can not turn on due to operate the power failure protection.

WARNING : USE UV RADIATION EYE AND SKIN PROTECTION DURING SERVICING

CAUTION: To prevent suffer of UV radia- tion, those adjustments must be completed within 25 minutes.

Contrast adjustment

[Before Adjustment]

- Input a 100% of black raster signal.

[R/G/B-CONTRAST ADJUSTMENT]	A
1 Loosen a screw A (Fig.1-1/1-2) on the polarized glass mounting
base which you intend to adjust.
2 Turn the polarized glass mounting ass'y and the polarized glass
mounting base at the same time as shown in Fig.1-1to obtain the
darkest brightness on the screen.
Note: Both of them should be moved at the same time and in the
same direction.
3 Tighten the screw A to fix the polarized glass mounting base.

Polarized glass mounting ass'y

Polarized glass mounting base

Fig.1-1

Repeat steps 1 to 3 for remaining polarized glasses.

Main Board	R-Polarized Glass
	Mounting Ass'y
	and Base
	A

G-Polarized Glass

Mounting Ass'y

and Base

A

B-Polarized Glass A

Mounting Ass'y

and Base

Fig.1-2

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