Sound Input; Audio Switch - Samsung 242MP Service Manual

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13-2-5 S5D2544X
- System LSI ( ) Enhancer IC
- Serial I2C
Communication
- ASE, GTC, Color Tone,
Gamma, 6-Color, Color Weakness
SCALER Output
S
C
A
L
E
R
LVDS Input
L
V
D
S
13-2-6 Sound <1>
- Audio Switch : TEA6422
- Audio Delay
AD : PCM1802
Delay : NJU26901
DA : PCM1754

Sound Input

S
u o
d n
P
C
s
u o
d n
R
L /
C
o
m
p
n o
n e
s t
u o
d n
R
L /
C
V
B
, S
- S
V
d i
o e
s
u o
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R
L .
c S
r a
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u o
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R
L .
The video signal experiences a time delay when processed by the Deinterlacing / Scaling
module. Due to this problem, the audio plays before the corresponding video appears. To
resolve this problem, an audio delay is introduced by the audio delay module that consists
of an AD converter, which converts the analog audio signal into digital, a delay module, and
a DA converter, which converts the digital signals into analog.
P
n i
6
~
3
5

Audio Switch

A
d u
o i
S
w
t i
h c
P
n i
6
2 ,
3
P
n i
9
2 ,
0
P
n i
4
2 ,
5
T
E
A
6
4
2
2
P
n i
5
2 ,
4
G
m
1
6
o
u
p t
2
I
C
S
5
D
5 2
4 4
X
Audio Delay
A
2
I
C
P
n i
1
2
1 ,
( 3
C I
7
0
) 0
A
D
P :
D
E
L
A
: Y
D
A
P :
13 Circuit Descriptions
P
A
N
E
L
0
1
u
t
PANEL Output
P
A
N
E
L
P
n i
8
9
~
1
1
2
LVDS Output
L
V
D
S
D
e
a l
y
B
o l
c
k
R
P
C
S
c
C
V
B
S
S ,
v -
d i
e
o
C ,
o
m
p
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e
n
d u
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D
l e
y a
A
U
D
I
O
D
E
L
A
Y
C
M
1
8
0
2
N
J
U
2
6
9
0
1
C
M
1
7
5
4
F
a
t r
t
D
l e
y a
S
O
U
N
D
13-5

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