FUNAI LT6-M19BB, Service Manual

Page: 22 / 62

7-3
Audio-1 Block Diagram
A8CN1BLA1
A
UDIO SIGNAL
CN3704
CN103A
A
UDIO(L)
32
1
A
UDIO(R)
42
0
CN4503
CN102A
TU-A
UDIO(L)
10
16
TU-A
UDIO(R)
11
15
BCLK
LRCLK
A
CLK
A
UX-AD
A
T
A
IC3825 (A
UDIO A/D CONVER
TER)
A/D CONVER
TER
1 2
11 10 15 12
TO DIGIT
AL
SIGNAL PR
OCESS
BLOCK DIA
GRAM
DIGIT
AL MAIN CB
A UNIT
SIF-OUT
TU501 (TUNER UNIT)
6
SCL SD
A
A
UDIO SIGNAL
PR
OCESS
I2C B
U
S
I/F
(L-CH) (R-CH)
3
19 18
IC3821
(SOUND PR
OCESSOR)
T
O
SYSTEM
CONTR
OL
BLOCK DIA
GRAM
NICAM-RESET
21
RESET
24 22
IC3823 (INPUT SELECT)
SW CTL
13 12
15
10
9
11
1 2
14
IC3822 (A
UDIO D/A CONVER
TER)
D/A CONVER
TER
(L-CH) (R-CH)
15 14
5 6 8 7
(L-CH) (R-CH)
Q3831
B
UFFER
Q3832
B
UFFER
Q3833 Q3834
SCAR
T
-MUTE
CN3704
CN103A
SIF
91
5
A
D
ATA
1
T
O
SYSTEM
CONTR
OL
BLOCK DIA
GRAM
MAIN CB
A
IC850 (INPUT SELECT)
SW CTL
13
1 2 4 5
12 11 14
9
10
(L-CH) (R-CH)
A
UDIO(L)-IN
JK723
JK724
A
UDIO(R)-IN
3
15
JK751
3 1
A
UDIO(L)-OUT
A
UDIO(R)-OUT
6
A
UDIO(L)-IN
2
A
UDIO(R)-IN
IC851 (INPUT SELECT)
SW CTL
4
10
9
11
3 5
14
12 13
J
A
CK CB
A
CN107
CN11
JK14
COMPONENT A
UDIO(L)-IN
COMPONENT A
UDIO(R)-IN
JK15
JK725
PC-A
UDIO
-IN
(L-CH) (R-CH)
INPUT2
61
8
INPUT0
81
6
INPUT1
71
7
COMP-A
UDIO(L)
77
COMP-A
UDIO(R)
88
INPUT0 INPUT1 INPUT2
T
O
SYSTEM
CONTR
OL
BLOCK DIA
GRAM