Display lighting level: General
The SID calculates a suitable lighting level using the rheostat level and the level of light intensity in the car, which comes from the light sensor.
The display is lit by 4 bulbs, easily accessible from the rear of the SID unit.
In the dark, the rheostat level controls the lighting. When the light levels in the car increase, the value for the light intensity in the car takes over. This ensures that all displays remain legible.
The SID sends the calculated value out on the bus as DISPLAY LIGHTING LEVEL, unit %.