Eiki EK-800U Service Manual page 67

6. DA Calibration
Note: Always perform a DA Calibration after replacing the
DA module or the Main board
Inspection Item- Check if the brightness of the screen is
variations when execute the DA calibration
Criteria - If the DA Module is not operating properly,
change the DA module.
Procedure -
Place the projector on a clean horizontal
surface.
- Enter Factory Mode
- Set DA to Open.
- Select DA Home > Dual: 16.
- Press right and left key following 16 > 17 > 18 >
19 (Right) > 18 > 17 > 16 (Left) to check
whether DA is operating correctly.
- Set DA Home position to position of maximum
brightness. Default value is Dual: 16.
Note: If the brightness value is very far from 16,
- Select DA.
- Press Select, following Open > Close > Open to
check whether DA is operating correctly.
it may indicate that DA is not operating
smoothly and needs to replaced.
EK-800U
Chapter 4 Test & Inspection
4-9