FUNAI A8C70EP - Page 22

7-3
Audio-1 Block Diagram
A8C70BLA1
AUDIO SIGNAL
CN3704CN103A
AUDIO(L)321 AUDIO(R)420
CN4503CN102A
TU-AUDIO(L)10 16 TU-AUDIO(R)11 15
BCLK
LRCLK
ACLK
AUX-ADATA
IC3825 (AUDIO A/D CONVERTER)
A/D CONVERTER
1 2
11 10 15 12
TO DIGITAL SIGNAL PROCESS BLOCK DIAGRAM
DIGITAL MAIN CBA UNIT
SIF-OUT
TU501 (TUNER UNIT)
6
SCL SDA
AUDIO SIGNAL PROCESS
I2C BUS I/F
(L-CH) (R-CH)
3
19 18
IC3821 (SOUND PROCESSOR)
TO SYSTEM CONTROL BLOCK DIAGRAM
NICAM-RESET
21
RESET
24 22
IC3823 (INPUT SELECT)
SW CTL
13 12
15
109 11
1 2
14
IC3822 (AUDIO D/A CONVERTER)
D/A CONVERTER
(L-CH) (R-CH)
15 14
5 6
8 7
(L-CH) (R-CH)
Q3831
BUFFER
Q3832
BUFFER
Q3833 Q3834
SCART-MUTE
CN3704CN103A
SIF915
A DATA 1
TO SYSTEM CONTROL BLOCK DIAGRAM
MAIN CBA
IC850 (INPUT SELECT)
SW CTL
13
1 2 4
12 11
9 10
(L-CH) (R-CH)
AUDIO(L)-IN
JK723
JK724
AUDIO(R)-IN
3
15
JK751
3
1
AUDIO(L)-OUT AUDIO(R)-OUT
6AUDIO(L)-IN
2
AUDIO(R)-IN
IC851 (INPUT SELECT)
SW CTL
4
109 11
3 5
14
12 13
JACK CBA
CN107CN11
JK14
COMPONENT AUDIO(L)-IN COMPONENT AUDIO(R)-IN
JK15
JK725
PC-AUDIO -IN
(L-CH) (R-CH)
INPUT2618 INPUT0816 INPUT1717
COMP-AUDIO(L)
77
COMP-AUDIO(R)
88
INPUT0 INPUT1 INPUT2
TO SYSTEM CONTROL BLOCK DIAGRAM
5
14