LG 28LH4530, Service Manual

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- 16 - LGE Internal Use Only
Copyright © LG Electronics. Inc. All right reserved.
Only for training and service purposes
BLOCK DIAGRAM
172m
V
540m
V
M1
L
(128
P
in
)
RS
-
2
3
2C
(P
h
o
n
e j
a
ck
)
D
E
M
O
D
X
-
ta
l
S
e
ri
al F
la
sh
8M
x
8b
it
D
D
R
2
64M
b
it
H
DM
I 1
T
M
DS
/DDC
Vi
de
o
Fr
on
t
E
nd
A
udi
o
Fr
on
t
E
nd
H
DM
I
RX
L
V
D
S o
ut
FHD
o
r HD
H
D/
SD
Vi
de
o
E
nc
ode
r
B
M
28720
M
U
V
(D
ig
ital
AM
P
)
I2S
M
C
LK
A
udi
o
DS
P
UART
RX
/T
X
Air /C ab le
C
a
n
tu
n
e
r
S
id
e
US
B
US
B
2.
0
LVD
S
C
on
.
FH
D
A
n
a
log
D
e
m
od
E
E
P
RO
M
64K
x
8b
it
X
TA
L
: 24M
H
z
TM
D
S
22
in
ch
:1
48.
5M
H
z(
FH
D
)
20
/2
4/
28
in
ch
:
8
5.
5M
H
z(
H
D
)
22
in
ch
:
LV
D
S
2c
h
,
192
0x
108
0,
60
h
z
, 1
75
M
H
z
20
/2
4/
28
in
ch
:
L
V
D
S
1c
h
,
13
66
x76
8,
60
h
z,
82
M
H
z
D
D
R
: 800M
H
z
M
T4
8,
28L
H
45
30
:
F
o
r
u
se
r
22/
24L
H
45
30
:
S
er
vi
ce
o
n
ly
M
T4
8,
28L
H
4530
:
U
se
(S
er
vi
ce
o
n
ly
)
22/
24L
H
45
30
:
N
o
t
u
se
M
T4
8
:
TD
SS
-H
701F
(L
G
IT
/H
al
f N
IM
)
LH
453
0
:
V
A
4S
1U
B
138
8(
Sh
ar
p
/H
al
f N
IM
)
IF
IF
(A
T
S
C
)
IF
(NT
S
C
)
S
D
A
/S
C
L
(24M
H
z
)