19LV2300 (CHASSIS:LA86D) - LG TV Service Manual (repair manual). Page 32

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BLOCK DIAGRAM
Flash
(1
6MB)
DDR(
3
2
MB)
(4x16x
4
)
DDR(
3
2
MB)
(4x16x
4
)
74LVC14APW 
C
S
5345
(Audio S/W
&A/D&AMP)
MTV416
(Micom)
NTP
3
0
0
0
(D-AMP)
X200
X-tal(54
)
PI
3HDMI
3
4
1
ATR
(3x1,S/W
)
EEPROM
A
T
/NT Tune
r
64Bit I/F
R
eset
CVBS
CVBS/Y/C
Y/Cb/Cr
R/G/B 
H/V Sy
nc
Audio L/R
I2S
MNT out
(L/R) 
SPDIF
OUT
I2S
Dual LVDS
Connector(40P)
Full H
D
(1080
P)
RS-232
C
Dead IC 
w
h
e
n
 Standby
A
li
v
e IC 
w
h
en 
Standby
Video 
Fro
nt
 
End
Du
al
HDMI
Rx0
HD/SD
Video
Encoder
Aud
io
DSP
BCM3552(HD)
BCM3553(FHD)
MCLK
MCLK
HDMI CEC
HDMI CEC(To
M
ico
m)
To Micom
SDA
SCL
SIF
IF(AT)
Buffer 
Digital out
IR & Local
 KEY
Buffer
Buffer
24
C16
AGC CTL (F
ro
m BCM)
USB2.
0
I2S Audio Input
VSB/
QAM/NTSC/S
IF
AV
1
AV
2
COMP
1
COMP
2
CVBS
DDR(
3
2
MB)
(4x16x
4
)
DDR(
3
2
MB)
(4x16x
4
)
DDR(
3
2
MB)
(4x16x
4
)
DDR(
3
2
MB)
(4x16x
4
)
DDR(
3
2
MB)
(4x16x
4
)
DDR(
3
2
MB)
(4x16x
4
)
DDR (1
2
8
MB)
RGB
Y/Cb/Cr
HDMI1
HDMI2
HDMI3
AV
1
AV
2
COMP
1
COMP
2
RGB
C
o
axia
l
OUT (L
G
5
0)
USB
LG70: FHD-1
20
Hz
X400
X-tal(24
)
NVRAM
24
C512
EE
PRO
M
EE
PRO
M
EE
PRO
M
MT8280-
FG
DDR (
6
4MB)
DDR(
3
2
MB)
(4
x16x
4
)
DDR(
3
2
MB)
(4x16x
4
)
DDR(
3
2
MB)
(4
x16x
4
)
DDR(
3
2
MB)
(4x16x
4
)
Dual LVDS
Connector(26P)
X1000
X-ta
l(2
7
 )
HDMI4
TMD
S
141H
AR
(1x1,
Equali
zer)
EE
PRO
M
Du
al
HDMI
Rx1
HDMI CEC(To
M
ico
m)
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