Using your Da Lite 88279 Da Mat Deluxe motorized front projection screen is easy. First, during the 'rough - in' stage of construction, install the case. When the finish stage arrives, put in the fabric assembly. You can control the screen using the built - in Low Voltage Control and the Decora style 3 - button wall switch. To keep it in good condition, avoid touching the screen surface with dirty hands as it may leave marks. Clean the screen gently with a soft, dry cloth if it gets dusty. Also, make sure the installation area is well - ventilated to help the motor run smoothly. If you plan to use the RS - 232 serial control board, follow the instructions that come with it carefully. This will ensure you get the best performance from your projection screen.