JVC UX-G6 Service Manual page 32

TA7439 (IC435) : Rear/center volume
1.Pin layout
SDA
1
CREF
2
Vs
3
AGND
4
ROUT
5
LOUT
6
R-IN4
7
R-IN3
8
R-IN2
9
R-IN1
10
L-IN1
11
L-IN2
12
L-IN3
13
L-IN4
14
MUXOUTL
15 TDA7439
2.Block diagram
L-IN1
11
G
L-IN2
12
L-IN3 13
0/30dB
L-IN4
14
2dB STEP
R-IN1
10
R-IN2
9
G
R-IN3
8
R-IN4
7
INPUT
MULTIPLEXER
GAIN
CSL
30
DIG GND
29
TREBLE(R)
28
TREBLE(L)
27
MIN(L)
26
MOUT(L)
25
BOUT(L)
24
BIN(L)
23
BOUT(R)
22
BIN(R)
21
MOUT(R)
20
MIN(R)
19
INR
18
17 MUXOUTR
16 INL
15 16 27
TREBLE
VOLUME
2
I C BUS DECODER LATCHES
VOLUME
TREBLE
17 28
18
23
26 25 24
SPEAKER
MIDLE
BASS ATT
LEFT
SPEAKER
MIDLE
BASS ATT
RIGHT
19 20 21 22
UX-G6/FS-G6
4 AGND
30
SCL
1
SDA
29
DIG-GND
5
ROUT
3
Vs
SUPPLY
4
AGND
2
2-27