FUNAI LC5-D20BB - Audio Block Diagram

7-3
Audio Block Diagram
A7340BLA
MAIN CBA
AUDIO SIGNAL
VOLUME
TO SYSTEM CONTROL BLOCK DIAGRAM
INPUT-0 INPUT-1
SCL SDA
IC850 (INPUT SELECT)
SW CTL
13
4 2 1
11 12
9 10
I2S FORMAT CONVERTER
DAC I/F /VOLUME
AGC DECODER
A/D CONVERTER
I2C BUS I/F
TO IF/VIDEO BLOCK DIAGRAM
TUNER
AUDIO1
AUDIO2
TUNER AUDIO1 AUDIO2
(L-CH) (R-CH)
(L-CH) (R-CH)
3
19 18
IC860 (SOUND PROCESSOR)
AUDIO(L)-IN1 JK723
AUDIO-MUTE
SIF
JK724 AUDIO(R)-IN1
14
IC801 (AUDIO AMP)
7
VOLUME
11
AMP AMP
MUTE /STANDBY CONTROL
6 1
(R-CH) (L-CH)
2
JK801 HEADPHONE JACK
CN801
SP-R 1
SP-GND 2
TO SYSTEM CONTROL BLOCK DIAGRAM
3
15
WF1
CL801
SP801 SPEAKER R-CH
TO SYSTEM CONTROL BLOCK DIAGRAM
NICAM-RESET
21
RESET
JK751
1
3
AUDIO(L)-OUT2 AUDIO(R)-OUT2
6
AUDIO(L)-IN2
2
AUDIO(R)-IN2
Q732
Q733
Q741
Q742
S/C-JACK-MUTE
D/A CONVERTER D/A CONVERTER
BEEPER
BUFFER
BUFFER
SP802 SPEAKER L-CH
CN802
CL802
SP-L 1
SP-GND 2
Q860
BUFFER
Q861
BUFFER
Q801
Q802
Q831
Q830
24 22
JUNCTION-A CBA JUNCTION-B CBA
1 2
1 2