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Audio Block Diagram
MAIN CBA
AUDIO SIGNAL
6-5 6-6 L6650BLA
A-MUTE-H
VOLUME
FROM/TO
SYSTEM CONTROL
BLOCK
INPUT 0
INPUT 1
SCL
SDA
SP802
SPEAKER
R-CH
CN802
SP-R 1
SP-GND 2
SP801
SPEAKER
L-CH
CN801
SP-L 1
SP-GND 2
IC771 (INPUT SELECT)
SW CTL
13
3
11
15
12
4
2
1
9 10
Q751
AMP
Q761
AMP
VCA
STEREO
FILTER
75uS
DE-EMPH
dBX
DE-EMPH
L+R
FILTER
WIDE BAND
FILTER
WIDE BAND
RMS DET
WIDE BAND
EXPAND
SPECTRAL
EXPAND
SPECTRAL
RMS DET
SPECTRAL
FILTER
OFFSET
CANCEL
L-CH
R-CH
MATRIX AGC
OFFSET
CANCEL
L-R
FILTER
(L-R)/SAP
SW
SAP
FILTER
I2C
DECORDER
SAP
DEMOD
SAP OUT
FILTER
29
30
FROM
IF/VIDEO BLOCK
TUNER
REAR
FRONT
TUNER
REAR
FRONT
(L-CH)
(R-CH)
21
27
24
IC431 (MTS/SAP AUDIO SIGNAL PROCESS)
AUDIO-IN(L)
(REAR)
JK702
JK702
SIF
JK703
JK703
IC801
(AUDIO AMP)
6
7
2
DC
VOL.
5
DC
VOL.
12
Q792 Q791
Q793
+8V
Q794
WF6
A-O-MUTE
Q825
AUDIO-IN(R)
(REAR)
JK722
AUDIO-IN(L)
(FRONT)
JK723
AUDIO-IN(R)
(FRONT)
AUDIO-OUT(L)
(REAR)
AUDIO-OUT(R)
(REAR)
OFFSET
CANCEL