- 17 -
BLOCK DIAGRAM
LA
76
21
3
LA
76
21
3
D
V
D
(F
LA
T
O
P
T.
)
D
V
D
(F
LA
T
O
P
T.
)
C
P
T
D
R
IV
E
FB
T
18
5V
A
FC
A
B
L
H
E
A
TE
R
B
+
H
D
T
C
ol
le
ct
or
A
V
1(
V
/R
/L
)-
IN
U
S
O
C
A
U
D
IO
B
+
B
+
(1
10
/1
15
V
)
(1
7V
/1
1V
)
S
M
P
S
TR
A
N
S
S
C
L
S
D
A
E
X
T
V
id
eo
-in
R
G
B
O
U
T
TU
N
E
R
V
_D
Y
R
ea
r_
A
V
(1
)
(P
H
O
N
E
)
R
ea
r_
A
V
(1
)
(P
H
O
N
E
)
IC
02
E
E
P
R
O
M
24
C
04
/1
6
V
-O
U
T
H
-O
U
T
S
P
K
1.
10
.5
V
Y
(G
)/C
r(
R
)/C
b(
B
)
S
D
A
S
C
L
LC
75
02
4E
A
2/
N
IC
A
M
M
O
N
O
S
O
U
N
D
A
M
P
LA
42
10
1
M
O
N
O
S
O
U
N
D
A
M
P
LA
42
10
1
A
C
IN
P
U
T
(1
00
~2
40
V
)
S
TE
R
E
O
,
S
ou
nd
M
ax
S
O
U
N
D
A
M
P
.
LA
42
10
2(
N
)
S
TE
R
E
O
,
S
ou
nd
M
ax
S
O
U
N
D
A
M
P
.
LA
42
10
2(
N
)
R
61
0
5V
O
pt
io
n
P
art
IIC
B
us
Li
ne
(M
ono
)
ML
-O
UT
31
22
17
5
46
~4
8
S
TE
R
E
O
(~
A
43
L)
M
O
N
O
(~
A
43
K
)
12
9
3
9
8
10
2
6
24
V
1
S
T-
B
Y
TR
A
N
S
(1
W
O
pt
)
57
56
64
9V Fr
om
IC
80
4
IC
80
4
9V
R
E
G
IC
04
S
T-
5V
R
E
G
9v Fro
m
IC
80
4
IC
66
1
5V
5.
1V
IC
75
1
LA
72
73
0
(S
TE
R
E
O
O
pt
)
IC
75
1
LA
72
73
0
(S
TE
R
E
O
O
pt
)
JA
01
H
IC
29
1
G
am
e
P
ac
k(
G
am
e
O
pt
)
H
IC
29
1
G
am
e
P
ac
k(
G
am
e
O
pt
)
4,
5,
6
8
7
Fr
om
U
S
O
C
V
id
eo
(G
am
e)
A
ud
io
(G
am
e)
54
S
IF
ou
t
IF
3,
6
11
1
4
7
2
5
9
LA
72
70
2
B
TS
C
IC
70
1
LI
N
-T
V
R
IN
-T
V
2
1
19
20
R
/L
O
ut
L-
O
U
T
R
-O
U
T
S
A
W
S
A
W
5
9
10
IF
IN
Z1
02
10
11
13
14 15
12
S
IF
IN
32
61
V-O
UT
(M
ono
)
18
17
18
2
7
50
E
xt
R
/L
IN
49
R
G
B
9V
S
C
L
S
D
A
27
26
33
V
S
T-
5V
9v Fro
m
IC
80
4
9v Fro
m
IC
80
4
S
T-
5v
Fr
om
IC
04
19
9
24
H
-V
cc
5V
V
D
D
3.
3V
V
cc 5V
9v Fro
m
IC
80
4
14
S
O
U
N
D
5V
S
O
U
N
D
5V
R
62
0
7.
5V
R
62
0
7.
5V
IC
80
3
5V
IC
80
3
5V
Q
40
2
M
D
18
03
IC
40
1
TD
A
81
45
IC
30
1
V
-in
FB
P
in
E
W
O
U
T
L4
01
V
cc
16
E
W
-O
U
T
E
W
IN
5v Fro
m
IC
80
3
62
IF 5V
S
D
A
S
C
L
23 24
S
C
L
S
D
A
51
S
P
K
L/
R
O
U
T
S
C
A
R
T
S
C
A
R
T
R
,G
,
B
8
33
FB
AV
ID
21
TV
IN
(S
T)
M_R
/L
OU
T(S
T)
M
on
ito
rV
O
U
T(
S
T)
S
P
K
2.
Copyright©2008 LG Electronics.Inc. All right reserved.
Only for training and service purposes.
LGE Internal Use Only
Summary of Contents for 21FG5RG
Page 21: ...P NO 3854VA0196D 08 04 14 ...
Page 22: ...SVC SHEET 3854VA0196D S ...
