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1. LCD Touchscreen Control Panel
2. Online status
3. Lock status
4. Signal source switch knob
5. Power on/off indicator
6. Desktop computer signal
7. Visual Presenter signal
8. Notebook signal
9. Wireless network projection signal
10. Projector on/off switch
11. Computer USB interface
12. Notebook/Interactive whiteboard interface
13. Notebook HDMI interface
14. Insert/Swipe IC card
15. Projection screen on/off switch
16. 3.5mm Audio input interface
17. Control module interface for signal connection
18. Amplifier module data interface
19. Swipe card/AV01 module data interface
20. LCD module data interface
21. Control box data interface
22. Control box Audio interface
23. Switch module data interface for signal source
24. Control box USB interface
25. Control box HDMI interface
2.33 LCD Screen Control Panel function
