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3. TECHNICAL BRIEF
3.16 Luminance Sensor
When ALC sensor turn on, automatically controls brightness of the display backlight.
U502 : Backlight driver IC (BD6095) used I2C interface to MSM7201A
U501 : Luminance Sensor
LGE Internal Use Only
Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
EUSY0343701
luminance Sensor
C505
2.2u
C504
1u
4.7u
C503
1
4
NC1
NC2
7
3
VCC
BH1600FVC
U501
GC1
5
6
GC2
2
GND
IOUT
120K
R509
VREG_MSMP_2.6V
4.7K
R507
RESETB
C4
SBIAS
F5
D5
SCL
D4
SDA
E5
SGND
SSENS
F3
A1
T1
A6
T2
T3
F6
F1
T4
F4
VBAT1
VBATCP
B5
VBATLDO
E1
E6
VIO
B4
VOUT
WPWMIN
D1
C2P
B6
C3N
A4
C3P
A5
A3
CPGND
FLASHCNT
D3
GC1
E4
E3
GC2
LDO1O
F2
LDO2O
E2
D2
LED1
C2
LED2
LED3
C1
LED4
B1
LED5
B2
A2
LEDFL
B3
LEDGND
BD6095GUL
U502
C1N
D6
C5
C1P
C6
C2N
C513
1u
R506
4.7K
1u
C506
C512
1u
TP501
VREG_MSMP_2.6V
+VPWR
C509
1u
BL_I2C_SDA
WLED_PWR
LCD_BL_EN
BL_I2C_SCL
WLED1
WLED2
WLED3
WLED4
WLED5
Luminance Sensor Schematic
MSM7201A
U501
U502
Luminance Sensor Block Diagram
Summary of Contents for CT815
Page 1: ...Date May 2009 Issue 1 0 Service Manual Model CT815 Service Manual CT815 Internal Use Only ...
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