5.6K
R2
C9 2.2碌F
C17
2.7nF
BLOCK DIAGRAM
OUT(L)
BOUT(L)
TREBLE(L)
4
SPKR
ATT
25
MUTE
L1
VOL
+ LOUD
BASS
TREBLE
MUTE
SPKR
ATT
23
OUT LEFT
REAR
OUT LEFT
FRONT
18
17
12
19
16
IN(L)
C11
100nF
100nF
C14
LOUD(L)
100nF
C15
BIN(L)
RB
3x
2.2碌F
C1
L1
15
LEFT
INPUTS
L3
C2
L2
14
L2
C3
L3
13
28
SERIAL BUS DECODER + LATCHES
27
26
SCL
SDA
DIGGND
BUS
INPUT
SELECTOR
+ GAIN
R3
VOL
+ LOUD
BASS
TREBLE
C4
R3
9
RIGHT
INPUTS
R1
C5
R2
10
R2
SPKR
ATT
24
MUTE
OUT RIGHT
FRONT
C6
R1
11
3x
2.2碌F
SPKR
ATT
RB
MUTE
1
8
IN(R)
CREF
C7
C8 2.2碌F
22碌F
OUT(R)
7
6
21
LOUD(R)
100nF
C12
100nF
C10
5.6K
R1
20
BOUT(R)
BIN(R)
100nF
C13
2.7nF
C16
5
TREBLE(R)
D98AU888
22
SUPPLY
3
OUT RIGHT
REAR
2
VS
AGND
TDA7313N
3/14