Avnet MSC C10-MB-EV, User Manual

Page: 26 / 48

MSC C10-MB-EV User Manual
26 / 48
4.7.2 Backlight Inverter Interface
The supply voltage of the backlight can be adjusted with jumper JP1102. The according
position is printed on the PCB.
DIP switch S2804 #3 should be set according to the backlight inverter used.
If the inverter needs a low active start signal, DIP-Switch S2804 #3 has to be set open.
If the inverter needs a high active start signal, DIP-Switch S2804 #3 has to be set on.
Brightness of the backlight inverter is controlled via the LVDS-BKLT-CTRL signal.
The LVDS-BKLT-CTRL signal of the COM Express module is routed straight to the
backlight inverter connector.
Specification:

References: X1101

Connector: Molex (53047-0510) 53261-0590

Pin-out: Refer to Table 7

Location: Refer to chapter 4.7 LVDS-Interface
Pin Signal name Function
1 VCC 4) Power supply backlight
2 GND Ground
3 BLON# Backlight On
4 VCON Brightness control
5 GND Ground
Table 7 Pin-out Backlight
4) Note: The power at 12V PCIe, VCC_LCD (X1601), VCC_BL_EDP (X1602), VCC_BL (X1101)
and 12V fan power are switched off, when the power input is not in the range of 11V to 13V. In
that case, you can feed 12V from an external power source at X1603 pin 4 to supply these
connectors with power.