AXIOMTEK PICO840, User Manual

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PICO840/842 Pico-ITX Board
Board and Pin Assignments 13
2.4.1 LVDS Voltage Selection (JP1 and JP2)
The board supports voltage selection for flat panel displays. Use these jumpers to set
LVDS connector (CN6) pin 1~6 VCCM to +3.3V, +5V or +12V. To prevent hardware
damage, before connecting please make sure that input voltage of flat panel is correct.
JP1
JP2
2.4.2 LVDS Brightness Control Mode Setting (JP4)
The JP4 enables you to select PWM or voltage control mode for inverter connector
(CN10). These two control modes are for adjusting the brightness of LVDS panel.
2.4.3 Restore BIOS Optimal Defaults (JP5)
Put jumper clip to pin 2-3 for a few seconds then move it back to pin 1-2. Doing this
procedure can restore BIOS optimal defaults.
2.4.4 Auto Power On (SW1)
If SW1 is enabled for power input, the system will be automatically power on without
pressing soft power button. If SW1 is disabled for power input, it is necessary to
manually press soft power button to power on the system.
Function JP1 Setting
+12V level Close
N/A Open
Function JP2 Setting
+3.3V level (Default) 1-2 close
+5V level 2-3 close
Function Setting
PWM mode (Default) 1-2 close
Voltage mode 3-4 close
Function Setting
Normal (Default) 1-2 close
Restore BIOS optimal defaults 2-3 close
Function Setting
Disable auto power on (Default) 1-2 close
Enable auto power on 2-3 close