User's Manual

LEDs Brightness

Step Procedure / Description LED indication

To adjust the brightness:

From the Standby screen, press > or < to

navigate to the Brightness screen and the

Brightness LED will keep flashing.

Press + or - to adjust the brightness level

(High/Med/Low).

Note:

It can extend the battery service life by decreasing the brightness of the LEDs display.

System Settings:

- To enter the System Main menu, press and keep holding > or < for 3 seconds to navigate to the

System Main (SYS) screen.

- To exit the System Main menu, press and keep holding < key for 3 seconds to exit.

- To cancel the setting, press < to cancel and back to the previous screen.

- ZTS-500US will exit the System menu automatically if there is no action (time out) within 30

seconds.