NAD L 70 Service Manual page 20

M62446FP (ELECTRONIC VOLUME/INPUT : IC13)
SYSTEM BLOCK DIAGRAM
C in
SW in
SL in
SR in
BYPASS1
BYPASS2
L in
R in
LATCH DATA CLK
PIN CONFIGURATION AND IC INTERNAL BLOCK DIAGRAM
OUT4
OUT3
OUT2
OUT1
AVDD
GNDS
GNDC
GNDR
GNDL
BYPASSR
BYPASSL
LTRE
LBASS3
LBASS2
LBASS1
volume
µ-com
interface
1
2
OUTPUT
PORT
3
4
5
SWin
6
7
SRin 8
SLin 9
10
Cin
11
12
Rin
13
14
Lin
15
16
17
18
19 tone
20
21
tone
volume
volume
MCU I/F
volume
volume
volume
volume
volume
tone
2-21
Cout
SWout
SLout
SRout
Lout
Rout
42
DVDD
CLK
41
DATA
40
39 LATCH
38
DGND
AGND
37
36
SWout
35 SRout
34 SLout
33 Cout
Rout
32
Lout
31
AVss
30
29 CL1
CL2
28
CR1
27
CR2
26
RTRE
25
24 RBASS3
23
RBASS2
RBASS1
22