Haier LC22KW1 Service Manual page 8

Pin number
1
2
3
4
5
6
7
Notes:
CN3-Pin 3: Backlight on/off:
The system can turn on or turn off the backlight of TFT LCD Panel through the power supply unit
path.
CN3-Pin 7: System power on / standby
System board will use this pin to control system power.
CN3-Pin 4: Control the luminance of backlight
The system can generate the PWN signal to control the strength of TFT LCD Panel's backlight
through this connector.
Keypad and remote connector (CN2)
Pin number
1
2
3
4
5
6
7
8
9
10
11
12
Speaker connector (CN1)
Pin number
1
2
3
4
DVD VIDEO Connector: CN6
Pin number
Signal name
+12V
+12V
BL
DIM
GND
GND
SW
Signal name
IR_IN
CPU5V
LED_G
GND
LED_R
K7
K6
K5
K4
K3
K2
K1
Signal name
LSPK
GND
GND
RSPK
Signal name
Pin number
1
2
3
4
5
Description
IR
5V
LAMP GREEN
GND
LAMPRED
POWER
MENU
P_
P+
V_
V+
SOURCE
Description
LSPK
GND
GND
RSPK
Description
8
Signal name
+12V
GND
GND
+5V
STB