33
KEH-1900,1950
7.2 PARTS
7.2.1 IC
SN761029DL
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
VCC
AVcc
IN1-R
IN1-L
IN2-R
IN2-L
IN3-R
IN3-L
IN4(+)-R
IN4(+)-L
IN4(-)-R
IN4(-)-L
AGND
AGND
SWout-R
SWout-L
ZCin-R
ZCin-L
LOUD-R
LOUD-L
VRin-R
VRin-L
TREB-R
TREB-L
BASS-C1-R
BASS-C1-L
BASS-R-R
BASS-R-L
BASS-C2-R
BASS-C2-L
NC
NC
TONEout-R
TONEout-L
FADERin-R
FADERin-L
FRNTout-R
REARout-R
DVcc
VREFin
DATA
AGND
CLK
DGND
STB
Ct
3 Line Serial Bus
Bass
Treble
Volume,
Loudness
Fader
Gain
Adjust
Isolator
Zero-cross
Detector
Power
Supply
Bass
Treble
Volume,
Loudness
Fader
Gain
Adjust
Isolator
Power
Supply
A
A
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