Flat Panel And Backlight Power Supply - Congatec conga-QEVAL/Qseven 2.0 User Manual

5.2.11.1

Flat Panel and Backlight Power Supply

The power supply for flat panels and their backlight inverter is available on connector X42. Analog backlight control (BL_CTRL_AN) is also
available via connector X42. To select panel and backlight voltage, use Jumpers X46 and X47. With switch 1 of DIP SW3, you can enable or
disable the backlight control.
The tables below describes the pinout for connector X42, Jumpers X46 and X47. For the flat panel and backlight power supply connection, see
the next page.
Connector X42 pinout
Pin Signal
VDD_LCD (750mA Fuse)
1
+5V (2A Fuse)
3
LVDS_PPEN
5
7 BL_CTRL_AN
GND
9
Connector Type
X42: 10 pin, 2 row 2.54 mm grid female.
Jumper X46 Configuration
1 - 2 +12VDC Backlight Voltage (default)
2 - 3 +5VDC Backlight Voltage
Jumper X47 Configuration
1 - 2 +3.3VDC LCD Voltage
2 - 3 +5VDC LCD Voltage (default)
Connector Type
X46 and X47 2.54mm grid Jumpers.
Copyright © 2014 congatec AG
Pin Signal
VDD_BL (2A Fuse)
2
+12V (2A Fuse)
4
LVDS_BLEN
6
BL_CTRL
8
GND
10
QEV2m11
LCD Power
(X42)
2 4 6 8 10
1 3 5 7 9
Backlight Power Config
(X46)
1 2 3
LCD Power Config
(X47)
1 2 3
SW3
O
1
Default Settings:
N
2
ALL ON
3
4
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