Emerson LC195EM82, Service Manual

Page: 23 / 59

7-3
Audio Block Diagram
A81N0BLA
MAIN CB
A
A
UDIO-MUTE
V
OLUME
T
O
SYSTEM
CONTR
OL BLOCK
DIA
GRAM
INPUT
-0
INPUT
-1
SCL
SD
A
IC852
(INPUT SELECT)
SW CTL
INH
3
12 15 11 14
1 4
6
9
10
STEREO FIL
TER
75uS DE-EMPH
dBX DE-EMPH
L+R FIL
TER
WIDE BAND FIL
TER
WIDE BAND RMS DET
WIDE BAND EXP
AND
SPECTRAL EXP
AND
SPECTRAL RMS DET
SPECTRAL FIL
TER
OFFSET CANCEL
L-CH R-CH
MA
TRIX
AG
C
OFFSET CANCEL
L-R FIL
TER
(L-R)/SAP SW
SAP FIL
TER
I2C DECORDER
SAP DEMOD
SAP OUT FIL
TER
29 30
TO IF/VIDEO BLOCK DIA
GRAM
TUNER
TUNER
(L-CH)
(R-CH)
21 27 24
IC851
(MTS/SAP A
UDIO SIGNAL PR
OCESS)
A
UDIO(L)
-IN1 JK704 DIGIT
AL
A
UDIO-OUT
JK702
SIF
JK705 A
UDIO(R)
-IN1 JK709 A
UDIO(L)
-IN2 JK710 A
UDIO(R)
-IN2
OFFSET CANCEL
14
IC801
(A
UDIO AMP)
7
V
OLUME
11
AMP AMP
MUTE /ST
ANDBY
CONTR
OL
(R-CH) (L-CH)
2
Q802
P-ON+5V
Q707
Q708
Q709
13
2
WF7
A
UDIO1
A
UDIO2
A
UDIO1
A
UDIO2 SIF/BB SW
INPUT VCA
SIF DEMOD
INPUT
-2
6
DTV
DTV
5
1
DTV
-SPDIF
DTV
-A
UDIO(L)
T
O
DTV
MODULE BLOCK DIA
GRAM
DTV
-A
UDIO(R)
AUDIO SIGNAL
A
U
DIO MUTE
JK801 HEADPHONE JA
C
K
SP801 SPEAKER R-CH
CN801A
CLN801
SP(R)
1
SP-GND
2
SP802 SPEAKER L-CH
CN802A
CLN802
SP(L)
1
SP-GND
2