2. Then connect the power cord. After finding the switch, connect the power cord before using the projector. Pay attention to the number of power cords and follow the steps. As shown in the figure, do not turn on the power switch when connecting the power cord.
3. Then connect the computer and the projector. After connecting the computer to the projector connector with the power cord, tighten the two small screws on the connector as shown in the figure.
4. Then turn on the power. After connecting all power cables, turn on the projector switch and the computer power switch, as shown in the figure.
5. Then, if the projector can't connect to the computer after being turned on, the screen content will not switch. At this time, press a few times on the keyboard (some computers are F5, in short, you can see the display icon on the button) to switch, as shown in the figure.
6. Then correct the projector image. After the screen content is projected onto the projection cloth, to correct the projection position and size, adjust the protruding position through the two screw knobs below. After adjustment, the image is suitable for the projection cloth, as shown in the figure.
7. Finally, focus the projector. Due to the position of the projector, the projected image needs to be focused. If the focal length can't reach the effect, you can also consider moving the projection position, as shown in the figure.
Extended data:
1, teaching: training meeting, classroom teaching; Traditional projectors are inconvenient to carry. Because there are naughty students in the school classroom, the projector is not An Daoquan in the classroom, so it is easy to be damaged by students. The portability of mini projector makes up for the vacancy in teaching. In the future, teachers only need to store the materials in the projector for students to see, which saves the trouble of textbooks and handwriting with pen and chalk.
2. Handheld projectors can be classified from two aspects:
(1) From the perspective of light source, micro-projection can be divided into LED and excitation light source.
(2) From the perspective of display chips, it can be divided into LCoS technology and DLP technology, in which LCoS can realize color through color sequence and color filter.