Acer PD723 Technické informace stáhnout pdf (Strana 48)

Chapter 4 42

Performance Troubleshooting (Computer Signal)

A. Have Image?

- Ensure the Signal cable and Source work as well.

- Check that can OSD Menu show on the screen.

- Check the Main board.

- Check the DMD board.

B. Have Garbage Pattern?

- Ensure the Signal cable and Source work as well.

- Check the Main board.

- Check the DMD board.

C. Uniformity OK?

- Ensure the Projection screen without dirty.

- Ensure the Projection lens is clean.

- Ensure the Brightness is within spec.

(Replace the Lamp if the Brightnedd is less than spec.)

- Check the Optical engine.

D. Is Color OK?

- Ensure the Signal cable works as well.

- Check the “Color wheel index” in the service mode of OSD Menu. (*Note)

- Check the Photo sensor.

- Check the Main board.

- Check the DMD board.

E. Dot Defect isn’t Compliant with the Spec.

- Ensure the Projection lens is clean.

- Use the Air gun for the Optical engine clean.

- Check the DMD chip.

F. Have Noise?

- Ensure the Signal cable and Source is work as well.

- Adjust the Tracking selection in OSD Menu.

- Press the Menu button to check that have the noise issue appear on OSD Menu.

(Check the DMD board if the noise also appear on the OSD Menu.)

1 2 ... 43 44 45 46 47 48 49 50 51 52 53 ... 62 63

Žádné komentáře

Acer PD723 Technické informace Strana 48