Mitsubishi Electronics XL50, XL21 installation manual Focus adjustment

2.3. Focus adjustment

This adjustment is normally unnecessary. You can adjust the lens focus when it is soft. [Procedure]

1.Display the crosshatch pattern by pressing [TEST] button twice.

2.To access the optical unit, open the screen (chapter 1.2.7.1, on page 21) in rear panels in Rear.

3.XGARear: Remove the band that fastens the accordion hose to the lens.

4.XGA: Loosen the lens hood fixing screw.

5.XGA: Loosen the two focus lock screws.

SXGA+: Loosen the two lens fixing screws and the ring fixing screw.

Front or open the

Lens hood fixing screw

Lens fixing screw

Focus ring

		Focus ring
	Ring fixing screw	Focus lock screw
For	SXGA+	For	XGA

6.Turn the focus ring to focus on the center of the screen.

7.XGA: Turn the lens hood to align the position not to shade the image.

8.Turn the focus ring to adjust the focus with balance on the whole screen.

9.XGA: Turn the lens hood to align the position not to shade the image again.

10.Fix the focus lock screws (suggested torque: 0.38Nm+/-0.03). Be careful not to stress too much on the lens.

11.XGA: Fix the lens hood fixing screw (suggested torque: 0.15Nm+/-0.02).

12.XGARear: Put back the accordion hose and tighten the fixing band.

13.Put back the rear panels or the screen unit.

PH50, XL50, XL21 series Set-up and Installation Manual

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