Audio Block Diagram
MAIN CBA
AUDIO SIGNAL
6-5
6-6
L6655BLA
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
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
SIF
JK703
IC801 (AUDIO AMP)
6
7
2
DC
VOL.
5
DC
VOL.
12
WF6
Q825
AUDIO-IN(R)
(REAR)
JK722
AUDIO-IN(L)
(FRONT)
JK723
AUDIO-IN(R)
(FRONT)
OFFSET
CANCEL