Spectra 1759ex - 13.15 Keypad Muting; Keypad Backlight

SPECTRA 1759EX 47
LCD KEYPAD:
Press and hold the [9] key. Enter the 2-digit (01 to 16) zone number(s), or use the arrow keys to scroll through the zones. and
when the appropriate zone is displayed, press the [FNC1] key. When the desired zones are chimed, press [ENTER].
13.15 KEYPAD MUTING (NOT TO BE USED WITH UL INSTALLATIONS)
Press and hold the [CLEAR] key for 3 seconds to enable or disable keypad muting. When muted, the keypad will only beep when
a key is pressed or when the keypad emits a Rejection or Confirmation Beep. All other beep functions are disabled.
13.16 KEYPAD BACKLIGHT (1686H and 1686V Only)
The illumination level behind the keys can be modified to suit the user’s needs. There are four backlight levels. The [MEM] key is
used to set the desired level. Each consecutive push of the [
MEM] key will increase the backlight level until the maximum level is
reached. After 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 [MEM] key for 3 seconds.
2) The [
MEM] key will illuminate.
3) Press the [
MEM] key to set the desired backlight level.
4) Press [CLEAR] or [ENTER] to exit.