Function Description - Haier HL19KN2 Service Manual

Service Manual
Model No.:

3-2-1 Function Description:

Main Board
Process signal which incept from exterior equipment then translate into signal that panel
can display.
3-2-2 Connector defi nition
Main board connector
Power connectors (J10, J2)
Pin number
1
2
3
4
5
Notes:
J10-Pin 2: Backlight on/off:
The system can turn on or turn off the backlight of TFT LCD Panel through the power
supply unit path.
J2-Pin 5: System power on / standby
System board will use this pin to control system power.
J10-Pin 3: 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
J10
Signal name Pin number
+5V 1
BL 2
DIM 3
high voltage
4
GND 5
6
7
8
9
10
11
12
13
- 09 -
J2
Signal name
GND
GND
+5V
+5V
POWER ON/OFF
+5VSTB
+5V
+5V
GND
GND
GND
+12V
+12V