LG 55LV5400 (CHASSIS:LA12E) Service Manual ▷ View online
LGE35230
6. USB block
USB1
USB_DP1
USB_DM1
+5V_USB
USB_DP1
USB_DM1
USB PWR
Switch
(IC1204)
USB_PWRFLT_1
USB_PWRON_1
5V
USB2
USB_DP2
USB_DM2
+5V_USB
USB_DP2
USB_DM2
USB PWR
Switch
(IC1203)
+3.3V_Noraml
USB_PWRFLT_2
USB_PWRON_2
5V
+3.3V_Noraml
7. I
2
C Connections
LGE35230
LGE35230
CH1
CH2
CH3
I2C2_3.3V
I2C3_3.3V
CH0
I2C0_3.3V
ATSC
Tuner
Tuner
0xC2
ATSC
Tuner
Tuner
0xC2
HDMI Switch
SIL9287B
0xB0
HDMI Switch
SIL9287B
0xB0
NVRAM
M24M01
0xA8
NVRAM
M24M01
0xA8
I2C1_3.3V
MICOM
UDP78F
0x52
MICOM
UDP78F
0x52
WIRELESS
0x20
WIRELESS
0x20
AMP
TAS5727
0x54
AMP
TAS5727
0x54
CHB IC
LG1140
0xF2
CHB IC
LG1140
0xF2
CHB IC
TW9910
0x88
CHB IC
TW9910
0x88
8. Wireless ready
Wi
re
less P
o
w
e
r &
C
o
n
tr
o
l
Jack (
J
K11051
)
+24V
WIRELESS_I2C (From LGE35230)
RS232C
Switch
RS-232C
MAX3232
RX/TX
WIRELESS_RX/TX
BCM_RX/TX
(Between LGE35230)
WIRELESS_DETECT
Wireless
RX (Sink)
RX (Sink)
HDMI Input
TMDS [8] (To SIL9287B)
CEC (To UPD78F05)
9. 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
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
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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