LG 32LC7D (CHASSIS:LA73E) Service Manual ▷ View online
- 29 -
- Whole chip internal block
- 30 -
- Brief diagram for our system
Vi
deo
Netw
or
k
Sw
ith
Front
Lbox
Detect
Vi
deo
Netw ork
Sw
ith
Back
NULL
NULL
2D HD Scaler
2D HD Scaler
MAD
MAD
CRC
Capture 2
TNT/
PEP
VBP
VBP
NULL
NULL
Feed Back
Compositor
MPEG Feeder
Vi
deo Feeder
ITU 656
HD-DVI
VDEC 0
Feed Back
DNR
DNR
2D SD Scaler
VEC
UpScaler
UpScaler
Graphic
Graphic
VDEC 1
HDMI-RX
Digital
Input
- 31 -
- ADC/IF Demodulator
Inband
AF
E
12B
it
A
/D
Inband
AF
E
12B
it
A
/D
AG
C
C
o
n
tr
o
l
ATSC VSB
Adv
an
c
ed
R
eceiv
e
r
ATSC VSB
Adv
an
c
ed
R
eceiv
e
r
ATSC
FEC
ATSC
FEC
Inband
Output
Int
e
rface
Inband
Output
Int
e
rface
OOB
Q
P
SK
R
eceiv
e
r
OOB
Q
P
SK
R
eceiv
e
r
OO
B
Output
Int
e
rface
OO
B
Output
Int
e
rface
D
VS-167 FEC
D
VS-178 FEC
D
VS-167 FEC
D
VS-178 FEC
O
O
B AF
E
6Bit A/D
O
O
B AF
E
6Bit A/D
AG
C
C
o
n
tr
o
l
QAM V
S
B
Adv
an
c
ed
R
eceiv
e
r
QAM V
S
B
Adv
an
c
ed
R
eceiv
e
r
ITU
-T J.83
A
nnex
A/B/C FE
C
ITU
-T J.83
A
nnex
A/B/C FE
C
NTSC IF
De
modul
ator
NTSC IF
De
modul
ator
Input Band
Input Band
Input Band
Input Band
Input Band
Input Band
Input
Band
Input
Band
MUX
MUX
Input Band
Input Band
B
C
M3560 DATA
Tr
an
sport Module
B
C
M
3560 DA
TA
Tr
an
sport Module
Memory
Controll
er
Memory
Controll
er
Vid
eo Output
Vid
eo Output
Audio Output
Audio Output
H
S
X1 Ser
ial
H
S
X1 Ser
ial
MPE
G-2 Transport
D
e
mux
w
/DVB
,D
ES
MPE
G-2 Transport
D
e
mux
w
/DVB
,D
ES
- 32 -
- Before Video network
Video
Net
w
o
rk
Sw
it
h
Front
AF
E
AF
E
Front
End
Front
End
Y/C
Se
pa
ra
ti
on
Y/C
Se
pa
ra
ti
on
Chrom
a
De
mo
Chrom
a
De
mo
B
ack
End
B
ack
End
VDEC Block
BVB
In
te
rf
ace
BVB
In
te
rf
ace
M
e
m
o
ry
In
te
rf
ace
(S
C
B
)
M
e
m
o
ry
In
te
rf
ace
(S
C
B
)
SCB
BUS
SCB
BUS
Crom
a
C
o
n
v
ersi
o
n
Crom
a
C
o
n
v
ersi
o
n
Horizon
Pa
n
Sca
n
Horizon
Pa
n
Sca
n
Fra
m
e
Buffer
Fra
m
e
Buffer
De-Int
er
De-Int
er
MPEG Feeder
BVB
In
te
rf
ace
BVB
In
te
rf
ace
SCB
DA
TA
Buffer
SCB
DA
TA
Buffer
P
ixel
Croppin
g
P
ixel
Croppin
g
Color
Ex
pa
nsi
o
n
Color
Ex
pa
nsi
o
n
Color
Ke
y
Color
Ke
y
A
lpha
Pr
e-
Multipl
A
lpha
Pr
e-
Multipl
G
ra
p
hic
Feed
er
B
lock
Horizon
S
c
al
er
Horizon
S
c
al
er
Gamma
Corre
ction
Color
Con
v
e
rto
r
BVB
In
te
rf
ace
CLUT
CLUT
???
???
RGB
Con
v
e
rt
er
RGB
Con
v
e
rt
e
r
Input
Ti
min
g
Ad
ju
s
t
Input
Ti
min
g
Ad
ju
s
t
D
V
I-
Secondary
BVB
In
te
rf
ace
BVB
In
te
rf
ace
???
???
RGB
Con
v
e
rt
er
RGB
Con
v
e
rt
e
r
Input
Ti
min
g
Ad
ju
s
t
Input
Ti
min
g
Ad
ju
s
t
DVI-P
rim
ary
BVB
In
te
rf
ace
BVB
In
te
rf
ace
HDMI
R
ece
iv
e
De
cod
e
HDMI
R
ece
iv
e
De
cod
e
HDCP
De
cr
y
p
t
HDCP
De
cr
y
p
t
HDMI Blo
c
k
HDMI
TMDS
Pins
HDMI
TMDS
Pins
Lbox
D
e
tect
Lbox
Det
e
c
t
TAB
2D -
S
cal
e
r
TAB
2
D
-
S
caler
2D -
S
cal
e
r
2
D
-
S
caler
MAD-IT
MAD-IT
NULL
NULL
Feed Back
Feed
Ba
ck
SCB
BUS
SCB
BUS
Crom
a
C
o
nv
ersi
o
n
Crom
a
C
o
n
v
ersi
o
n
Horizon
Pa
n
Sca
n
Horizon
Pa
n
Sca
n
Fra
m
e
Buffer
Fra
m
e
Buffer
De-Int
er
De-Int
er
Vide
o Feeder
BVB
In
te
rf
ace
BVB
In
te
rf
ace
ANALO
G
Pins
ANALO
G
Pins
HDMI
Pins
HDMI
Pins
DVI
Pins
DVI
Pins
Coef
T
a
bl
e
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