POWER ON/OFF & BRIGHTNESS CONTROL
Touch Open Cover A gentle tap on the touch
open cover at left side of the main unit will open the cover and show the
power switch, brightness adjust push button switches and a double deck USB connector. Each single press on
the + or – button changes the LCD panel display brightness by a small amount. When you press and hold the button the change will keep on until release or extreme condition matched. It is preferable to keep this cover closed in daily operation. The LCD brightness can also be controlled through software setting.
There must always be at least 10 seconds waiting before switching on again once the system is powered off successfully.
Power Indicator
There is an power indicator LED module serving for several purposes under the logo at center of lower rim of LCD panel. The relationship between the indicator status and other conditions is summarized in following table:
Indicator Status | System | External | UPS Battery | Powering Up | |
Status | Power | ||||
|
|
| |||
Off | Off | Off | Not present | Not possible | |
Off | Off | Off | Present | Not allowed | |
Green | Off | On | No influence | Allowed | |
Blue | On | On | No influence | Not required | |
Blue/flash | On | Off | Activated | Not required | |
Green/rapid flash | On | Off | Running at | Not required | |
low capacity |
Hardware Power Switch
The power switch located in the touch open cover of the main unit is a tactile pushbutton switch. This switch controls the power on/off of the system. This switch turns the system on when pushed only when external power is present. This switch turns the system off when pushed again during power on status. However, if the system hangs due to any reason such as software resource conflict a simple push on the switch may fail to turn off the power. In this case, please utilize the forced power off feature by pressing the switch and holding for within 10 seconds. In case the turmoil is so vigorous that some hardware registers may be confused causing trouble for system restart or even
Part 17
