Optoma DE-1123EGA - Manual (Page 4)

3 8
To avoid overheating the motor, do not continually retract and lower the screen for more than 3 minutes.
If the motor overheats, it will need a cool down for at least 2 minutes. The motor does not need any lubricants.
The drop andretract limit of the screen is factory preset to an optimal configuration. Please ask your local
dealer or professionalto adjust settings to avoid damaging the motor.
Up groove
Down groove
Figure 8 Figure 9
4. When mounting the screen onto Floating wall brackets, make sure the Up groove and the Down groove
on the housing match with the Up and the Down on the bracket seperately. ( Figure 8-9 ). buckle buckle
5. Fasten the Fixing screw on the bracket, to fix housing tightly onto the brackets.( Figure 10-11 )
Figure 10 Figure 11
3. Loose the Fixing screw to lower down the all the way. ( Figure 6-7 ) Baffle
Figure 6 Figure 7
Baffle Fixing screw
Adjust top black border up/down limit use Strew Adjuster A:
Turn clockwise to decrease top black border, turn anti clockwise to increase top black border.
Adjust bar height up/down limit use Strew Adjuster B:
Turn clockwise to increase bar height, turn anti clockwise to decrease bar height.
Remarks: Please use the provided Allen key to adjust the screen.
Please use the above with care, and only adjust in small increments i.e. one turn at one time.
Always check each adjustment once done to make sure you do not over adjust.
If you wish to adjust both top bar and top black border, only do one at a time and then check if correct.