LG 52LG50FD-SA (CHASSIS:LJ82B) Service Manual ▷ View online
C
2008
- 33 -
Flash
(32MB)
DDR1(128MB)
(16Mx16x4)
DDR1(128MB)
(16Mx16x4)
TEA6420
Audio
SW
MT
V416
(Micom)
NTP3000
(Digital AMP)
64Bit I/F
RGB-
P
C
HDM
I
1/2
/3
COMP 1
COMP 2
AV1
AV2
RGB-
P
C
I2S
MCLK
Digital out
COMP1
COMP2
AV1
AV2
B
C
M7412
(MPEG4
D
eco
de
r)
Analog
/Digital
Tuner
TC
9051
2
DVI
I2S
SIF
SPDIF Out
CVB
S
CVBS/Y/C
Y/Cb/Cr
R/G/B
DDR1
(64MB)
CS5340
L/
R
Se
ria
l TP
20b
its
12b
it YC
4
:2:2
NIM TUNER
TMDS_
RX+-
EPM240F
MNT out (Audio Only
)
T
M
D
S
341
A
(3x1
,S
/W
)
CVBS/Y/C
MC33078
(A
M
P
)
L/
R
R
S
232
RX/TX
DVI
4:
2:2 20bit YC
Full H
D
(1080
P)
WXGA(
7
6
8
P
)
RF
Sw
it
c
h
DM1/DP
1
Se
ria
l
TP
74HC
04
SPDIF Out
(Co
axi
al)
Video
Fro
nt
End
Du
al
HDMI
Rx
HD/SD
Video
Encoder
Aud
io
DSP
USB2.0
PKT
HSX
PCI/
EBI
HD-DVI
IB
0
Pa
rs
e2
RSBUF
XCBUF
RMX0
BCM3553
Local KEY
24
C16
74LV
C
14AP
W
X-tal(54M)
R
eset
K
IA7029
NVRAM
I2C
A
V
V
ideo
- 34 -
C
2008
Check signal format
Is it supported?
Check signal
R755 (Composite), R814 / R815 (S-Video)
(Rear)
R855 (Composite), R856 / R857 (S-Video)
(Side)
Replace it.
Check signal
C651 (Composite), C648 / C649 (S-Video)
(Rear)
C652 (Composite), C659 / C660 (S-Video)
(Rear)
Y
N
Check J701 (Rear)
Check P700 & Cable (Side)
Replace connector
Y
N
Y
Replace it
N
Maybe BCM3553(IC100) has problems
Y
Check AV Cable / S-Video Cable
Y
AV Video
- 35 -
C
2008
Flash
(32MB)
DDR1(128MB)
(16Mx16x4)
DDR1(128MB)
(16Mx16x4)
TEA6420
Audio
SW
MT
V416
(Micom)
NTP3000
(Digital AMP)
64Bit I/F
RGB-
P
C
HDM
I
1/2
/3
COMP 1
COMP 2
AV1
AV2
RGB-
P
C
I2S
MCLK
Digital out
COMP1
COMP2
AV1
AV2
B
C
M7412
(MPEG4
D
eco
de
r)
Analog
/Digital
Tuner
TC
9051
2
DVI
I2S
SIF
SPDIF Out
CVB
S
CVBS/Y/C
Y/Cb/Cr
R/G/B
DDR1
(64MB)
CS5340
L/
R
Se
ria
l TP
20b
its
12b
it YC
4
:2:2
NIM TUNER
TMDS_
RX+-
EPM240F
MNT out (Audio Only
)
T
M
D
S
341
A
(3x1
,S
/W
)
CVBS/Y/C
MC33078
(A
M
P
)
L/
R
R
S
232
RX/TX
DVI
4:
2:2 20bit YC
Full H
D
(1080
P)
WXGA(
7
6
8
P
)
RF
Sw
it
c
h
DM1/DP
1
Se
ria
l
TP
74HC
04
SPDIF Out
(Co
axi
al)
Video
Fro
nt
End
Du
al
HDMI
Rx
HD/SD
Video
Encoder
Aud
io
DSP
USB2.0
PKT
HSX
PCI/
EBI
HD-DVI
IB
0
Pa
rs
e2
RSBUF
XCBUF
RMX0
BCM3553
Local KEY
24
C16
74LV
C
14AP
W
X-tal(54M)
R
eset
K
IA7029
NVRAM
I2C
HDMI V
ideo
- 36 -
C
2008
Check signal format
Is it supported?
Y
Check J600 / J601 / J602
Replace connector
Y
N
Y
Check HDMI Cable
Check EDID NVRAM (IC602, 603,
604)
Power & I2C Signal (#5, #6)
Replace it or redownload
Y
N
Check HDCP Key NVRAM (IC102)
Power & I2C Signal (#5, #6)
Replace it
Y
N
Check IC809 #2 Pin Voltage Level
3.3V
Replace it
Y
N
Check L607 Voltage Level 3.3V
Replace it
Y
N
Check IC601 Clock Signal
#26, #27
Replace it
Y
N
Maybe BCM3553(IC100) has problems
HDMI Video
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