Front Block Diagram - LG LAN8900EKSL Service Manual

FRONT BLOCK DIAGRAM

<
HEAD UNIT
MAIN
BOARD
AUDIO
BOARD
>
CVBS (Rear Camera Option)
R [7~2]
G [7~2]
B [7~2]
PCLK
BIAS
LCLK
FCLK
3.3 V
X-,X+,Y-,Y+
WM9713
4
BT_RX,TX
PCM
4
KEY_RX,TX
POWER/EJECT/VOLUME+/-
BACKLIGHT ON/OFF
LCD_PWM
LCD7.4 V, LCD5 V, LCD3.3 V
ILL+ , ILL-
< LCD Block Diagram >
R [7~2]
G [7~2]
B [7~2]
CLKH
Video
CLKV
Decoder
HSYNC
(TW8816)
VSYNC
VCOM VOLTAGE
r-VOLTAGE 10
I2C
B/T
RESET
Module
POWER
BLOCK
7-1 7-2
7.0"
LCD
Panel
Key
MICOM
Switch
LE D BLU
Key
EN
DCDC+
LED Driver
(AAT2823)
TOU
CH
SCR
EEN