Great product, helped me to restore vintage walkman cassette.
Just some pictures could be little bit more sharp and contrast
Thank you
Text excerpt from page 21 (click to view)
5.2.4 Backlight Control
Backlight is controlled by KBC. Measure the amount of light with the light sensor. When light amount falls below a certain amount backlight turns on. When light amount exceeds a certain amount backlight turns off. By having a certain amount of hysteresis it prevents the flickering of the backlight. Backlight control is shown in Figure 5.2.4.