Sharp PN-80TC3 - Drawing Shapes; Drawing Basic Shapes

PN-L803C/80TC3 INSTALLATION, ADJUSTMENT, SETTING, OPERATION 2 - 9
The USB cable on the back of the tray can be fastened with the cable clamp to the rear of the monitor.
1-9. REMOVING THE TRAY
1-10. ATTACHING THE SPEAKER COVER
If you will use the monitor in a portrait orientation, the speaker cover is not used.