Audio Block Diagram - Sylvania SRT2227X Service Manual

Audio Block Diagram

IC401
FROM
TU-AUDIO 5
IF/VIDEO BLOCK
21
Q441
+8V
JK702
AUDIO-IN-(L)
(FRONT)
JK703
AUDIO-IN-(R)
(FRONT)
JK704
AUDIO-IN-(L)
(REAR)
JK704
AUDIO-IN-(R)
(REAR)
MAIN CBA
MTS/SAP AUDIO
SIGNAL PROCESS
5fH
ATT
L-R
TRAP
DEMOD
L+R
AMP
PILOT
DET
PHASE
COMP
2 1
IC481 (INPUT SELECT)
FRONT
12
13
TUNER
11
(L-CH)
(R-CH)
FRONT
1
3
TUNER
4
SW CTL
9 10
6-5
Q411
LPF VCA 10 BUFFER 11
LPF
STEREO
SW
STEREO
DRIVER
VCO F/F F/F F/F
22
X441
IC802 (AUDIO AMP)
5
DC VOL.
2
6
AUDIO SIGNAL
L-R
14
AMP
MATRIX
13
20 STEREO-IN
MONO-OUT
7
12
Q825
A-MUTE-H
VOLUME
INSEL1
INSEL2
6-6
FROM/TO
SYSTEM
CONTROL
BLOCK
SP801
SPEAKER
L-CH
CN801
SP-L 2
SP-GND 1
JK801
HEADPHONE
JACK
SP802
SPEAKER
R-CH
CN802
SP-R 2
SP-GND 1
FROM
SYSTEM
CONTROL
BLOCK
L6600BLA