LG 47LE5400 (CHASSIS:LA02D) Service Manual ▷ View online
LGE3549
GND
USB_RREF
4.02K
100pF
8. USB block
USB1
USB_DP1
USB_DM1
+5V_USB
USB_DP1
USB_DM1
USB PWR
Switch
(IC302)
D3.3V
USB_PWRFLT_1
USB_PWRON_1
5V
USB2
USB_DP2
USB_DM2
+5V_USB
USB_DP2
USB_DM2
USB PWR
Switch
(IC301)
D3.3V
USB_PWRFLT_2
USB_PWRON_2
5V
9. I
2
C Connections
LGE3549
LGE3549
CH1
CH2
CH3
I2C2_3.3V
I2C3_3.3V
AMP
NTP7000
0x54
AMP
NTP7000
0x54
CH0
I2C0_3.3V
ATSC
Tuner
Tuner
0xC2
ATSC
Tuner
Tuner
0xC2
MICOM
UDP78F
0x52
MICOM
UDP78F
0x52
HDMI Switch
TDA19997
0xC0
HDMI Switch
TDA19997
0xC0
NVRAM
M24M01
0xA8
NVRAM
M24M01
0xA8
I2C1_3.3V
P-GAMMA
/WIRELESS
/MEMC_240
P-GAMMA
/WIRELESS
/MEMC_240
FRC
URSA3
0xB4
FRC
URSA3
0xB4
10. Wireless ready
Wireless
Powe
r &
C
o
ntr
o
l
Jack (
JK
87
00)
+20/24V
WIRELESS_I2C (From LGE3549)
RS232C
Switch
RS-232C
MAX3232
RX/TX
WIRELESS_RX/TX
BCM_RX/TX
(Between LGE3549)
WIRELESS_DETECT
Wireless
RX (Sink)
HDMI Input
TMDS [8] (To TDA19997)
CEC (To UPD78F05)
11. Wireless TX (Source) – AV BOX
HDMI 1
USB
SPDIF
SERIAL
RGB D-SUB
RGB AUDIO
COMPONENT 1
COMPONENT 2
HDMI 2
HDMI 3
IR BLASTER
DC IN
Serial
Flash
1MB
NAND
Flash
256M(x8)
16-Bit
16-Bit
MiCOM
NEC
RS232A
Driver
EDID
ROM
EEPROM
256KB
RGB AUDIO
Audio-L/R
Audio-L/R
RGB
Composite
Component
HDCP-KEY
ROM
DDR3
128M x8
DDR3
128M x8
Saturn 7
SC424
DC/DC
.
LVDS
MP2212
DC/DC(1.26)
MP2212
DC/DC(3.3)
MP2212
DC/DC(1.5)
HDMI 1,2,3
HDMI
IR BLASTER
MICOM
.
.
RGB
.
.
SPDIF
TX PWR
wireless TX
HDMI 4
WIRELESS
COMP2
AV1
HDMI1
HDMI2
HDMI3
HDMI4
RGB
POWER
TOUCH
I/F
Micom
COMP1
AV2
Power LED
board
LG Logo
board
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