Function Description; Connector Defi Nition - Haier HL37XLE2 Service Manual

Service Manual
Model No.: HL37XLE2

4-2-1. Function Description:

Main Board
Process signal which incept from exterior equipment then translate into signal that panel can display.
4-2-2. Connector defi nition
Main board connector
Power connectors (CN17)
Pin number Pin number Signal name Signal name
+12V +12V
1 1
2 2 +12V +12V
3 3 GND GND
4 4 +12V +12V
5 5 GND GND
6 6 GND GND
Notes:
CN17-Pin 12: Backlight on/off:
The system can turn on or turn off the backlight of TFT LCD Panel through the power supply
unit path.
CN17-Pin 10: System power on / standby
System board will use this pin to control system power.
CN17-Pin 8: Control the luminance of backlight
The system can generate the PWM signal to control the strength of TFT LCD Panel's
backlight through this connector
Remote connector (CNE1)
Pin number Signal name
1 5VS
2 IR-IN
3 LEDR
4 LEDB
5 GND
Keypad connector (CNE2)
Pin number Signal name
GND
1
2 KEY0
3 KEY1
4 3.3VS
14
CN17 CN17
Pin number Pin number
7 7
8 8
9 9
10 10
11 11
12 12
Description
5V
IR
LAMP RED
LAMP BLUE
GND
Description
GND
KEY0
KEY1
3.3V
Signal name Signal name
5V_STB 5V_STB
BRT_CNTL_OUT BRT_CNTL_OUT
GND GND
SW_POWER SW_POWER
NC NC
BL_ON/OFF BL_ON/OFF