Mainboard; Function Description; Connector Definition - Haier LE40B7000TF Service Manual

Service Manual
Model No.: LE40B7000TF

4-2. Mainboard

4-2-1. Function Description

Process signal which incept from exterior equipment then translate into signal that panel can
display.
4-2-2. Connector definition
IR & Key Interface
CN7
Pin number
GND
1
2 K7
3 K6
4 K5
5 K4
6 K3
7 K2
8 K1
9 K0
10 GND
11 IR
12 GRE
13 RED
14 5V
14
Signal name
LED Backlight interface
CN804/CN805
Pin number Signal name
LED+
1
NC
2
LED-
3
Speaker connector CN18
Pin number Signal name
ROUT+
1
2 ROUT-
3 LOUT-
4 LOUT+