Haier LE40D3281 - Chapter 4. Location of Controls and Components; 4-1. Board Location

Service Manual
Model No.: LE40D3281
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
14
IR & Key Interface
CN6
Pin number Signal name
1
5V
2 RED
3 GRE
4 IR
5 GND
6 K0
7 K1
8 K2
9 K3
10 K4
11 K5
12 K6
13 K7
14 GND
Inverter connector CN2
Pin number Signal name
1
12V
2
12V
3
BLO
4
ADJ
5
GND
6
GND
Speaker connector CN18
Pin number Signal name
1
ROUT+
2 ROUT-
3 LOUT-
4 LOUT+