Nexo NXAMP 4X4 Service Manual

■
IC BLOCK DIAGRAM
（IC ブロック図）
D0
Q0
R
D
Q
QD
CP
FF1
D1
Q1
R
D
Q
QD
CP
FF2
D2
Q2
R
D
Q
QD
CP
FF3
D3
Q3
R
D
Q
QD
CP
FF4
D4
CP
MR
Q4
R
D
Q
QD
CP
FF5
D5
Q5
R
D
Q
QD
CP
FF6
D6
Q6
R
D
Q
QD
CP
FF7
D7
Q7
R
D
Q
QD
CP
FF8
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
MR
Q0
D1
D0
Q1
Q2
D2
D3
Q3
GND
Q7
D6
D7
Q6
Q5
D5
D4
Q4
CP
V
CC
IN1
REFI1
RESET
MUTE
SCL/CCLK
SDA/MOSI
AD0/CS
ENOut
DGND
VD
REFI8
IN8
REFO8
OUT8 OUT7 OUT6
REFO7 REFO6
REFI7 REFI8
IN7 IN6
VA+
VA-
REFO1 OUT1 OUT2 OUT3 REFO2 REFO3 REFI2 REFI3 IN2 IN3 VA- VA+
VA+
VA-
OUT5
REFO5
IN5
REFI5
REFI4
IN4
REFO4
OUT5
VA+
VA-
1
2
3
4
5
6
7
8
9
10
11
12
36
35
34
33
32
31
30
29
28
27
26
25
48 47 46 45 44 43 42 41 40 39 38 37
13 14 15 16 17 18 19 20 21 22 23 24
5
3
I
2
C/SPI
Control
Port
I
2
C/SPI
Serial
Control
8-channel
Analog
Inputs
8-channel
Analog
Outputs
8V to 9V
+3.3V
Zero Crossing
Detector
R
D
Q
Q
latch
1
S
D
Q
0
A
0
R
D
Q
Q
latch
2
S
D
A
1
R
D
Q
Q
E
latch
3
S
D
A
2
R
D
Q
Q
latch
4
S
D
A
3
LE
Q
1
Q
2
Q
3
Q
4
Q
5
Q
6
Q
7
Q
8
Q
9
Q
10
Q
11
Q
12
Q
13
Q
14
Q
15
V
CC
A
3
A
2
Q
10
Q
11
Q
8
Q
9
Q
14
Q
15
Q
12
Q
13
E
1
2
3
4
24
23
22
21
A
0
A
1
Q
7
Q
8
Q
5
Q
4
Q
3
Q
1
Q
2
Q
0
GND
LE
5
6
7
8
9
10
11
12
20
19
18
17
16
15
14
13
DC
D
CP
Q
Q
3
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
U/D
CP
D0
D1
D2
D3
CEP
GND
V
CC
TC
Q0
Q1
Q2
Q3
CET
PE
D1
D
CP
Q
Q
4
D2
D
CP
Q
Q
5
D3
PE
CEP
CET
CP
U/D
D
CP
Q
Q
6
9
7
10
2
1
TC
15
Q3
11
Q2
12
Q1
13
Q0
14
r74HCT273PW,118 (X8681A0)
D-type Flip Flop
PN-AN: IC002, 003
r74LVC169PW,118 (X8482A0)
Binaly Counter
CONTROL: IC044, 045
r74HCT4514PW,118 (X8630A0)
Decoder
PN-AN: IC004-007
rCS3318-CQZ (X8486A0)
Volume Controller
CONTROL: IC001
NXAMP4x4
38

Nexo NXAMP 4X4 Specifications

General

Brand	Nexo
Model	NXAMP 4X4
Category	Recording Equipment
Language	English