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Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
3. Technical Brief
When ALC sensor turn on, automatically controls brightness of the display backlight.
U25 : Backlight driver IC (BD6083) used I2C interface to MSM7200A [Main PCB ]
U2 : Luminance Sensor [LCD_FPCB]
3.17. Luminance Sensor
Figure. Luminance Sensor Schematic
Figure. Luminance Sensor Diagram
BH1621FVCU2
6
43
2
51
VCC
IOUT
GND1
GC1 GC2
2DNG
GAIN2GAIN1
SBIAS SSENS
K01361R
FU131C
BD6083GUL
U25
3A
6F
1A
1F
6A
E2
D3
F2
E1
F3
B3
D4
C4
B4
VIO
RESETB
SCL
SDA
WPWMIN
SBIAS
SSENS
SGND
GC2
GC1
2
T
4T
1T
3T
1DNG
GAIN2
GAIN1
SBIAS
SSENS
LCD_PWM
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