Description

The operation of the three primary color synthesis experimenter:
1. Place three AA batteries in the battery compartment (note that the positive and negative electrodes are placed correctly), turn on the power switch, and close the battery compartment cover, and the instrument can work.
2. Three demonstration spots of red, green, and blue can be observed on the projection screen. Turn the blue, red, and green knobs to adjust the blue, red, and green illuminance respectively, so that you can observe the changes in various colors .

Four, maintenance and maintenance:
1. Use three AA batteries as the power source (1.5V’x3). When inserting the batteries, please check the positive and negative poles, and do not install them in reverse. If the instrument will not be used for a long time, please remove the battery.
2. Pay attention to the cleanliness of the projection screen and avoid scratching it with hard objects, otherwise it will affect the demonstration effect. If the surface of the projection screen is contaminated by fingerprints or other contamination, it can be wiped with absolute alcohol.