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Chapter 2 Hardware Installation
14
Chapter 2
DC-in Voltage Level
1
ON
2
34
SW5
The Switch5 is used to select the voltage level of 5V~19V DC-in jack.
1
2
3
4
ON
ON
ON
ON
1 On,
2, 3, 4 Off:
19V
2 On
1, 3, 4 Off:
12V (default)
3 On
1, 2, 4 Off:
5V
4 On
1, 2, 3 Off:
N.C.
Backlight Brightness Power Select
3
1
2
3
1
2
2-3 On: +3.3V
1-2 On: +5V
(default)
The JP19 is used to select the power level of backlight brightness control: +5V or +3.3V.
JP19
Important:
Before powering-on the system, make sure that the power settings of JP19 match the
power specification of backlight control. Selecting the incorrect voltage will seriously
damage the backlight.
1
ON
2
34
1
1
1
2
2
2
3
3
3
4
4
4
