Emerson 6420FE CRT Television User Manual


 
6-3
Audio Block Diagram
L2401BLA
MAIN CBA
AUDIO SIGNAL
A-MUTE
VOLUME
TO
SYSTEM
CONTROL
BLOCK
INPUT 0
INPUT 1
SCL
SDA
IC771 (INPUT SELECT)
SW CTL
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-IN(L)
(REAR)
JK711
SIF
JK711
AUDIO-IN(R)
(REAR)
JK702
AUDIO-IN(L)
(FRONT)
JK703
AUDIO-IN(R)
(FRONT)
OFFSET
CANCEL
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
11
IC801 (AUDIO AMP)
7
VOLUME
14
AMP
AMP
MUTE
/STANDBY
CONTROL
3
8
2
Q811
RF
Q801
5
RF
TO
POWER
SUPPLY
BLOCK
WF6
3
13
(L-CH)
(R-CH)