Paradox 1686V User Manual page 29

reaching the maximum level, the backlight level will return
to the lowest level and the whole process is repeated. To
change the backlight level:
How do I modify the backlight?
1. Press and hold the [
2. The [
MEM
3. Press the [
4. Press [
CLEAR
MEM
] key will illuminate.
] key to set the desired backlight level.
MEM
] or [
ENTER
] key for 3 seconds.
] to exit
Spectra LED Keypads 25