Emerson EWF2006 - Page 25

7-3
Audio Block Diagram
L3314BLA
MAIN CBA
AUDIO SIGNAL
A-MUTE
VOLUME
TO SYSTEM CONTROL BLOCK
INPUT0 INPUT1 SCL SDA
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
TO IF/VIDEO BLOCK
TUNER
REAR
FRONT
TUNER REAR FRONT
(L-CH) (R-CH)
21 27 24
IC431 (MTS/SAP AUDIO SIGNAL PROCESS)
AUDIO(L)-IN (REAR) JK711
SIF
JK711 AUDIO(R)-IN (REAR) JK702 AUDIO(L)-IN (FRONT) JK703 AUDIO(R)-IN (FRONT)
OFFSET CANCEL
11
IC801 (AUDIO AMP)
7
VOLUME
14
AMP AMP
MUTE /STANDBY CONTROL
3 8
(R-CH) (L-CH)
2
Q811
RF
Q801
5
RF
+5V
TO POWER SUPPLY BLOCK
WF6
JK801 HEADPHONE JACK
SP802 SPEAKER R-CH
CN802
SP-R 1
SP-GND 2
SP801 SPEAKER L-CH
CN801
CLN801 CLN802
SP-L 1
SP-GND 2
+5V