LG 47LE8500 (CHASSIS:LA02E) Service Manual ▷ View online
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
12. Wireless RX (Sink)
HDMI
Connector
Control
Connector
SB9121
Network
Processor
SB9111
RF
Receiver
Embedded
CPU
SiI9134
HDMI
Transceiver
MX1605
Serial Flash
SPI Bus
D[35:0]
H/VSYNC
DE
IDCK
I2S(4line)
SPDIFO
I2C(2line)
DDC(2line)
TMDS(8line)
RST#
INT
INT
VCXO
VCXO
Video
PLL
Video
DAC
Audio
PLL
Audio
DAC
I2
C
C
I2C
ACLK
VCLK
Micom
RST#
CEC
ADCI_P/N
ADCQ_P/N
PCLK_P/N
DACI_P/N
DACQ_P/N
RF
Control
SLEEP
XTAL
(3.6864MHz)
OSC
(54MHz)
MCLK/SCK/W
S
I2C(2line)
1. Trouble shooting - No power
Check stand-by Voltage.
P8000 9~12pin : +3.5V_ST
Check Power connector
Main B/D 3.5V Line
Short Check
Check X8101 clock
32 KHz
Replace X8101
Check P404 PWR_ON.
1pin : 3.3V
Replace Micom(IC8101 ) or Main board
Check Multi Voltage
P8000 2 pin : *20V , 17 pin : 12V
Replace Power Board
Check Inverter Control
P8000 18 pin : High
Check Power Board or Module
Check IC402/3/5/7 Output Voltage
IC8001 : 1.2V, IC8003 : 1.8V
IC8004 : 2.5V ,IC8005 : 3.3V
Replace IC8001/ 3 /4 / 5
Re-download Micom software.
Check Micom Voltage
IC8101 pin 48 : +3.5V
Replace L8003
Check LVDS Power Voltage
Q8004 : 12V
Replace Q8004
Check FRC(IC9001)LVDS Output
Replace FRC(IC9001)or Main Board
Change Module
ok
ok
ok
ok
ok
ok
ok
ok
ok
ok
No
No
No
No
No
No
No
No
OK
No
Check X1001 Clock
54 MHz
Replace X1001
ok
No
Replace Power board.
ok
Check IC402/3/5/7 Output Voltage
IC8903 : 3.3V, IC8001 : 1.5V
IC8902 : 1.2V
No
Replace IC8901/ 2/ 3
No
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