DOWNLOAD LG 47LH40ED / 47LH45ED (CHASSIS:LJ92J) Service Manual ↓ Size: 5.35 MB | Pages: 76 in PDF or view online for FREE

Model
47LH40ED 47LH45ED (CHASSIS:LJ92J)
Pages
76
Size
5.35 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD
File
47lh40ed-47lh45ed-chassis-lj92j.pdf
Date
PREV: LG 47LH40 (CHASSIS:LA92G) Service Manual

LG 47LH40ED / 47LH45ED (CHASSIS:LJ92J) Service Manual ▷ View online

12. Component / RGB / AV Audio Trouble Shooting
Y
Check Jack JK700/JK703/JK704
N
Y
Check Signal
CXA2069 #9, #11 Pin (Comp1)
CXA2069 #16, #18 Pin (Comp2)
CXA2069 #29, #31 Pin (RGB)
CXA2069 #2, #4 Pin (AV1)
CXA2069 #23, #25 Pin (AV2)
N
Replace Jack
Check Video Output
Replace one of
C1143/R1156/C1142/R1155
C1141/R1154/C1140/R1153
C1152/R1176/C1151/R1175
C1126/R1140/C1127/R1141
C1154/R1182/C1155/R1183
& Recheck
N
Follow procedure external input 
video trouble shooting
Y
Check Signal
CXA2069(IC1102) #52, #54 Pin
N
Y
Check Signal
C204, C205
N
Replace one of
Q1100/Q1102/R202/C204/
R203/C205& Recheck
Checl IC1102 Power Level 9V
at L1110
N
Replace It
Y
Replace IC1102 & Recheck
Y
Follow procedure All source audio 
trouble shooting
N
Maybe BCM3556 audio block has 
problems. Replace It
13. HDMI Audio Trouble Shooting
MPEG_TS
DDR2
256MB
DDR2
256MB
BCM3556
(400M MIPS)
BCM3556
(400M MIPS)
1080P
LVDS
(Front-end)
(External Input)
EXT_IN
HDMI0_BCM
CVBS_LIVE
TP1
CVBS1/
SIF1
Ca
ble
ISDB-T/
PAL/NTSC
(System + DVR + Scalar)
(Analog DVR)
CVBS2/
SIF2
ISDB-T/
PAL/NTSC
Serial
TP1
Serial
TP2
I2S_BCM
NTP3100L
NTP3100L
CVBS1
CVBS2
CVBS_LIVE
CVBS/Y_DVR
COMP1_LR
COMP2_LR
RGB_LR
2069_L/R_OUT1
CXA2069
CXA2069
2069_L/R_OUT2
EXT_IN
HDMI0_BCM
AV1
AV2
NANDFlash
128MB
NANDFlash
128MB
(Etc)
SW
SW
SIF2
SIF1
SPI BUS
USB2.0
SPDIF
SIF_DVR
SIF_LIVE
SIF_LIVE
2069_L/R_OUT1
TP2
I2S_BCM
SPIF225A
SPIF225A
HDD
HDD
CVBS/Y_DVR
SIF_DVR
2069_L/R_OUT2
SAA7164
SAA7164
MPEG_TS
DDR1
256Mb
DDR1
256Mb
Flash
256KB
Flash
256KB
CPLD
CPLD
Parallel TS
Serial
I2C
MSPI
TDA9996
TDA9996
(Comp1/2, RGB)
TU_CVBS_DVR
TU_CVBS_DVR
HDMI4
HDMI2
HDMI1
SIDE HDMI_PORT4
UI_HW_PORT1
UI_HW_PORT2
RMX
BCM_SPI_CSb/
BCM_SPI_MISO
TP REMUX PORT
BCM_SPI_MOSI/
BCM_SPI_SCK
MNT_VOUT_DVR
MNT_VOUT_DVR
MONITOR_LR+/-_OUT
AMP
AMP
MNT_LOUT
MNT_ROUT
MNT_L/ROUT
Not Stuffed
13. HDMI Audio Trouble Shooting
Check video output
Y
Follow procedure All source audio 
trouble shooting
N
Y
Re-download EDID data
Maybe BCM3556 audio block has 
problems. Replace it
N
Follow procedure HDMI video 
trouble shooting
N
Replace IC601
14. USB Trouble Shooting
MPEG_TS
DDR2
256MB
DDR2
256MB
BCM3556
(400M MIPS)
BCM3556
(400M MIPS)
1080P
LVDS
(Front-end)
(External Input)
EXT_IN
HDMI0_BCM
CVBS_LIVE
TP1
CVBS1/
SIF1
Ca
ble
ISDB-T/
PAL/NTSC
(System + DVR + Scalar)
(Analog DVR)
CVBS2/
SIF2
ISDB-T/
PAL/NTSC
Serial
TP1
Serial
TP2
I2S_BCM
NTP3100L
NTP3100L
CVBS1
CVBS2
CVBS_LIVE
CVBS/Y_DVR
COMP1_LR
COMP2_LR
RGB_LR
2069_L/R_OUT1
CXA2069
CXA2069
2069_L/R_OUT2
EXT_IN
HDMI0_BCM
AV1
AV2
NANDFlash
128MB
NANDFlash
128MB
(Etc)
SW
SW
SIF2
SIF1
SPI BUS
USB2.0
SPDIF
SIF_DVR
SIF_LIVE
SIF_LIVE
2069_L/R_OUT1
TP2
I2S_BCM
SPIF225A
SPIF225A
HDD
HDD
CVBS/Y_DVR
SIF_DVR
2069_L/R_OUT2
SAA7164
SAA7164
MPEG_TS
DDR1
256Mb
DDR1
256Mb
Flash
256KB
Flash
256KB
CPLD
CPLD
Parallel TS
Serial
I2C
MSPI
TDA9996
TDA9996
(Comp1/2, RGB)
TU_CVBS_DVR
TU_CVBS_DVR
HDMI4
HDMI2
HDMI1
SIDE HDMI_PORT4
UI_HW_PORT1
UI_HW_PORT2
RMX
BCM_SPI_CSb/
BCM_SPI_MISO
TP REMUX PORT
BCM_SPI_MOSI/
BCM_SPI_SCK
MNT_VOUT_DVR
MNT_VOUT_DVR
MONITOR_LR+/-_OUT
AMP
AMP
MNT_LOUT
MNT_ROUT
MNT_L/ROUT
Not Stuffed
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