Akai lct42z6tm Service Manual page 52

3-2-2. Backlight Inverter
Input Connector
-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 : 2.5 ~ 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
= 0.0V
BR
= 3.3V
BR
Master
V
V
V
V
V
GND
GND
GND
GND
GND
V
On/Off
GND
Status
11 12
July. 22, 2005
Liquid Crystal Display
Slave
V
BL BL
V
BL BL
V
BL BL
V
BL BL
V
BL BL
GND
GND
GND
GND
GND
Don't care
BR
Don't care
Status connector
1 1
2
Top
Bottom
LC420WU1
Note
1
2
3
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