LG 55LH80YD-AB Service Manual page 63

Block Diagram
3.3V_TU I2C_CH6
ANT/ PAL CHIP
CABLE TUNER
XC5000
IN
Composite
Video
IN
Component
(Y,Pb,Pr)
IN
RGB
IN
FRONT
HDMI
IN
(x4)
BACK
Copyright ⓒ 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
3.3V_TU 1.8V_TU
DVB
IF
Demodulator
[CE6355]
TS
I2C_CH1
ANALOG
VIDEO
INPUT
FE_VMAIN
AV1_CVBS_IN
AV2_CVBS_IN
COMP1-Y/Pb/Pr
COMP2-Y/Pb/Pr
DSUB-R/G/B
HDMI
DIGITAL
VIDEO
INPUT
DDC_RGB
CEC_RX
CEC_RX
DDC_RGB
HDMI
Switch
(4-to-1)
3.3V_2
[TDA9996]
1.8V_1
I2C_CH2
I2C_CH2
I2C_CH2 I2C_CH4 I2C_CH6
3.3V_2
LCD/PDP
DIGITAL TV
PROCESSOR
LVDS
DUAL Receiver
LVDS
[DTC30LM36]
[LGE3369A]
TX_SEL
1.26V_1 1.8V_DDR 3.3V_1
I2C_CH4 3.3V_L
MiCOM
CEC_TX
[WT61P8S]
MEDIA-BOX(VIDEO)
CEC_TX
3.3V_2 1.8V_1
3.3V_2 5.0V_1
HDMI
HDMI
30 HDMI
Transmitter
DeMUX
[SiI9134]
[PI3HDMI1210]
TX_SEL
I2C_CH2
I2C_CH4
HDMI
Receiver
5.0V_ST
[SiI9125]
24
Network
Processor
[SB9120]
RF
Transceiver
[SB9110]
Wireless TX Module
SERVICE
only
3.3V_L
1.8V_L
3.3V_L
2.5V_L
1.0V_L
2.5V_L
1.5V_L
1.2V_L
1.0V_L
LGE Internal Use Only