IEI Integration SRM_121_150 v1.11 - Manual (Page 54)

SRM-121/SRM-150 LCD Monitor
Page 40
4.2.4 Backlight Inverter Connector
CN Label: CN2
CN Type: 6-pin wafer connector
CN Pinouts: See Table 4-7
CN Location: See Figure 4-6
The Inverter connector connects to the LCD backlight. Using the BKLT_EN signal to
control the inverter status (ON/OFF) and the BKLT_ADJ signal to adjust brightness of
inverter by OSD brightness function. The OSD brightness function
can control a PWM
input and variable DC voltage to minimize flickering (due to the interference between
panel timing and inverter’s AC timing), and adjust LCD back light brightness.
PIN DESCRIPTION
1 +12V
2 +12V
3 BKLT_EN
4 BKLT_ADJ
5 GND
6 GND
Table 4-7: Backlight Inverter Connector Pinouts
Figure 4-6: Backlight Inverter Connector Location