iLO IWF2706 - Page 29

7-4
Audio Block Diagram
L4803BLA
MAIN CBA
AUDIO SIGNAL
AUDIO-MUTE1
VOLUME
TO SYSTEM CONTROL BLOCK
TO SYSTEM CONTROL BLOCK
INPUT0 INPUT1
SCL SDA
IC701 (INPUT SELECT)
SW CTL
13
3
11 15 12
5 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
LINE1
LINE2
LINE1 COMP LINE2
(L-CH) (R-CH)
21 27 24
IC451 (MTS/SAP AUDIO SIGNAL PROCESS)
AUDIO(L)-IN1
JK711
SIF
AUDIO-MUTE2
AUDIO(R)-IN1 JK702 AUDIO(L)-IN2 JK703 AUDIO(R)-IN2
OFFSET CANCEL
COMP- AUDIO(L)-IN
JK742
COMP- AUDIO(R)-IN
4
TUNER
14
COMP
11
IC801 (AUDIO AMP)
7
VOLUME
14
AMP AMP
MUTE /STANDBY CONTROL
3 8
(R-CH) (L-CH)
212
Q811
+5V
WF11
SP802 SPEAKER R-CH
CN802
SP-R 1
GND 2
SP801 SPEAKER L-CH
CN801
CLN801 CLN802
SP-L 1
GND 2
Q61
BUFFER
TO DTV BLOCK
DTV-AUDIO(R) DTV-AUDIO(L)
1 6
Q352
Q351
WF12