User`s manual

2-17
Hardware Setup
Pin Signal Name
1 VCC3
2 LCD_SRC (default VCC3)
3 VCC5
Clear CMOS Jumper: CLR_CMOS1
There is a CMOS RAM onboard that has a power supply from external battery to keep
thedataofsystemconguration.WiththeCMOSRAM,thesystemcanautomatically
bootOSeverytimeit isturnedon.If youwanttoclear thesystemconguration,set
the CLR_CMOS1 (Clear CMOS Jumper ) to clear data.
Important
You can clear CMOS by shorting 1-2 pin while the system is off. Then return to
2-3 pin position. Avoid clearing the CMOS while the system is on; it will damage
the mainboard.
Keep Data
1
3
Clear Data
1
3
LVDS Power Selection Jumper: J1
Use this jumper to specify the LVDS power.
J1
1
CLR_CMOS1
1
COM Port Power Jumpers: JCOMP4, JCOMP5
These jumpers specify the operation voltage of the serial port COM4 & COM5.
+5V
1
3
+12V
1
3
JCOMP4
1
3
+5V
1
3
+12V
1
3
JCOMP5
1
3
Jumpers