LC420W02
Liquid Crystal Display
Product Specification
3-2-2. Backlight Inverter
- Inverter Connector : S12B-PH-SM3(manufactured by JST) or Equivalent
- Mating Connector : PHR-12 or Equivalent
Status Connector
-Inverter Connector : 20022WR-02A00(manufactured by Yeon Ho co., Korea)
-Mating Connector : 20022HR-02S00(manufactured by Yeon Ho co., Korea)
Table 7. INVERTER CONNECTOR PIN CONFIGULATION
Pin No
Symbol
VBL
Description
Master
VBL
Slave
VBL
Note
Power Supply +24.0V
1
2
VBL
Power Supply +24.0V
Power Supply +24.0V
Power Supply +24.0V
Power Supply +24.0V
POWER GND
VBL
VBL
VBL
VBL
VBL
3
VBL
VBL
VBL
4
VBL
VBL
VBL
5
GND
GND
GND
GND
GND
VBR
GND
GND
GND
GND
GND
VBR
GND
GND
GND
GND
GND
6
POWER GND
7
POWER GND
1
8
POWER GND
9
POWER GND
10
11
0V ~ 3.3V
Don’t care
Don’t care
2
3
On/Off
0V ~ 5.0V
On/Off
12
Option Pin(Lamp Open Status Detection)
GND
POWER GND
GND
1
2
Upper 3.0V(Normal),
Under 0.7V(Abnormal)
Status
Status
Component side
Status connector
Input connector
1
1
2
3
11 12
2
PCB
Top
Bottom
S12B-PH-SM3-TB
(JST : Japan Solderless Terminal Co.,Ltd.)
Note : 1. GND should be connected to the LCD module’s metal frame.
2. Minimum Brightness : VBR = 0.0V
Maximum Brightness : VBR = 3.3V
3. VON : 4.0 ~ 5.0V
VOFF : -0.3 ~ 0.5V
11 / 28
Ver. 1.0
Dec. 19, 2005
LG [ LG SEMICON CO.,LTD. ]
