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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
1
V
BL
2
V
BL
3
V
BL
4
V
BL
5
V
BL
6
GND
7
GND
8
GND
9
GND
10
GND
11
V
BR
12
On/Off
Option Pin(Lamp Open Status Detection)
1
GND
2
Status
Component side
PCB
Note : 1. GND should be connected to the LCD module's metal frame.
2. Minimum Brightness : V
Maximum Brightness : V
3. V
: 4.0 ~ 5.0V
ON
V
: -0.3 ~ 0.5V
OFF
Ver. 1.0
Product Specification
Description
Power Supply +24.0V
Power Supply +24.0V
Power Supply +24.0V
Power Supply +24.0V
Power Supply +24.0V
POWER GND
POWER GND
POWER GND
POWER GND
POWER GND
0V ~ 3.3V
0V ~ 5.0V
POWER GND
Upper 3.0V(Normal),
Under 0.7V(Abnormal)
Input connector
1
2
3
S12B-PH-SM3-TB
(JST : Japan Solderless Terminal Co.,Ltd.)
= 0.0V
BR
= 3.3V
BR
Master
V
BL
V
BL
V
BL
V
BL
V
BL
GND
GND
GND
GND
GND
V
BR
On/Off
GND
Status
Status connector
11
12
85／125
LC420W02
Liquid Crystal Display
Slave
Note
V
BL
V
BL
V
BL
V
BL
V
BL
GND
GND
GND
GND
GND
Don't care
Don't care
1 1
2
Top
Bottom
1
2
3
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