Read LG 52LG70-UA (CHASSIS:LA86A) Service Manual online
- 31 -
C
2008
BLOCK DIAGRAM
Flash
(1
6MB)
74LVC14APW
C
S
5345
(Audio S/W
&A/D&)
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
2MB)
(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
LG90: FHD-1
20
Hz
LED Backlight M
o
dul
e
X400
X-tal(24
)
NVRAM
24
C512
EE
PRO
M
EE
PRO
M
EE
PRO
M
FRC
-
9459M
DDR (
6
4MB)
DDR(
3
2
MB)
(4x16x
4
)
Dual LVDS
Connector(26P)
X1000
X
-t
a
l(
20.25
)
HDMI4
TMD
S
141H
AR
(1x1,
Equali
zer)
EE
PRO
M
Du
al
HDMI
Rx1
HDMI CEC(To M
ico
m)
Lo
ca
l D
im
m
in
g
on/o
ff
L
o
c
a
l D
immi
n
g
D
e
m
o
,
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