Alto BLACK 15 SUB, Service Manual

Page: 13 / 34

SCHEMATIC DIAGRAM
- 13 -
MP
1 3
D 09 A
BAV 99 W
3 2
D 09 B
BAV 99 W
1 3
D 08 A
BAV 99 W
3 2
D 08 B
BAV 99 W
+12 V -12 V
1 3
D 11 A
BAV 99 W
3 2
D 11 B
BAV 99 W
1 3
D 10 A
BAV 99 W
3 2
D 10 B
BAV 99 W
-12 V
IN 1 O -
IN 1 O +
IN 2 O -
IN 2 O +
1
2
3
JK 1 A
NCJ 6 FI _ V
S
T 1
R
T 2
JK 1 B
NCJ 6 FI _ V
1
2
3
JK 2 A
NCJ 6 FI _ V
S
T 1
R
T 2
JK 2 B
NCJ 6 FI _ V
1
2
3
JK 3
C 15
47 p
C 12
100 p
C 11
100 p
+
3
-
2
O
1
V
+
8
V
-
4
U 11 A
4580 M
C 16
47 p
R 17
1 K
C 19
22 u /25 V
C 29
22 u /25 V
R 18
1 K
R 16
10 K
R 15
10 K
+12 V
-12 V
C 25
47 p
+
3
-
2
O
1
V
+
8
V
-
4
U 12 A
4580 M
C 26
47 p
R 35
1 K
R 36
1 K
C 17
47 p
+
5
-
6
O
7
U 11 B
4580 M
R 22
10 K
R 21
10 K
+12 V
C 27
47 p
+
5
-
6
O
7
U 12 B
4580 M
R 39
10 K
R 33
10 K
R 38
10 K
GND
R 19
22 K
C 13
10 u /25 V
C 14
10 u /25 V
R 14
10 K
R 13
10 K
GND
R 34
10 K
R 23
22 K
+12 V
C 22
100 p
C 21
100 p
C 23
10 u /25 V
C 24
10 u /25 V
R 32
10 K
R 31
10 K
R 37
22 K
GND
R 40
22 K
GND
R 45
470 K
+
C 33
1 u /16 V
R 48
100 K
C 36
47 P
R 46
22 K
R 47
10
C 38
0.1 u
R 49
4 K 7
C 39
0.01 u
C 37
1 u /16 V
R 43
20 K
GND
GND
GND
3
2
1
Q 26
2 N 3904
AUTO DET
IN
1
Amp _ Out
2
TRIN
3
GND
4
CAP _ D
5
RES _ D
6
OUT
7
VCC
8
U 13
NJU 7181
BK 3.3 V
+
C 31
1 u /16 V
R 41
20 K
GND
IN 1 M
IN 1 P
IN 2 P
IN 2 M
C 18
22 u /25 V
C 28
22 u /25 V
3
2
1
VR 1
10 KB
R 190
100
R 189
100 VOL
BASS
GND
R 287
82 R
R 281
10
BASSVOL
1 2
LED 1
LED
1
2
LED 3
LED
1
2
LED 5
LED
1
2
LED 4
LED
1
2
LED 6
LED
R 181 220 R
R 185 220 R
3
2
1
Q 21
MMBT 1815
GND
R 182 220 R
R 186
100 R
3
2
1
Q 22
MMBT 1815
GND
R 183 220 R
R 187
330 R
GND
R 184 220 R
R 188
3 K 3
3
2
1
Q 24
MMBT 1815
BT - LD 1
1 4
2 5
3 6
SW 1
SW SLIDE 2 P 2 T
BT - SW 1 POL SW
1
2
3
4
5
CN 22 A
SMD HEADER 2.54 m m *5
1
2
3
JK 4 XL 1 O -
XL 1 O +
XL 2 O -
XL 2 O +
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
CN 23 A
SMD HEADER 2.54 m m *16
XL 2 O -
XL 2 O +
XL 1 O -
XL 1 O +
AGND
AGND
AGND
1
2
3
4
5
6
7
8
CN 21 A
SMD HEADER 2.54 m m *8
IN 2 O -
IN 2 O +
IN 1 O -
IN 1 O +
GND
GND
BY - PASS SW
POL SW
+12 V
-12 V
AUTO - DET
AUTO - DET
C 43
0.1 u
C 44
0.1 u
C 45
0.01 u
C 46
0.01 u
C 47
0.01 u
BT - SW 1
BK 3.3 V
D 3.3 V
1 4
2 5
3 6
SW 2
SW SLIDE 2 P 2 T
1 4
2 5
3 6
SW 3
SW SLIDE 2 P 2 T
GND
1 4
2 5
3 6
SW 5
PUSH SW 2 P 2 T
C 49
0.01 u
BASS - VOL
BASS - VOL
1
2
3
4
CN 24 A
SMD HEADER 2.54 m mx 4
GND
DSP _ MODE
SW 5
GND
1 4
2 5
3 6
SW 6
SW SLIDE 2 P 2 T
SW 5
D 3.3 V
DSP _ MODE
R 283
10 K
BK 3.3 V
LOGO LED
X 4
1
X 6
2
X
3
X 7
4
X 5
5
Enable
6
VEE
7
VSS
8
C
9
B
10
A
11
X 3
12
X 0
13
X 1
14
X 2
15
Vcc
16
4
0
5
1
U 10 74 HC 4051
CLIP _ LD
DSP _ LD 1
DSP _ LD 2
DSP _ LD 3
DSP _ LD 1
DSP _ LD 2
DSP _ LD 3
C 10
0.1 u
PG
1 4
2 5
3 6
SW 7
SW SLIDE 2 P 2 T
C 50
0.01 u
GND
1
2
LED 9
LED
1
2
LED 2
LED
GND
+5 VD
C 20
0.1 u
GND
2
1 3
E G
LED 7
LED -3 P ( L -59)
2
1 3
E G
LED 8
LED -3 P ( L -59)
R 285
4 K 7
BK 3.3 V
R 286
120 R
R 288
2 K 2
R 289
4 K 7
GND
POWER - ON
POWER - ON
R 290
1 K 5
1
2
3
Q 23
MMBT 1015
GND
BY - PASS SW
C 48
0.01 u
1 4
2 5
3 6
SW 4
SW SLIDE 2 P 2 T
R 282
220 R
1
2
LED 10
LED N
O
ST - BY
SIGNAL CLIP
DSP MODE
BY PASS
NO OCK
- L LOCK
NO - LOCK
GND
POLARITY
- NO LOCK
GND GND
GND
ST - BY O N / OFF AIRING
LOCK NO - LOCK
P
C 155
1 u /50 V
C 152
22 p
+
5
-
6
O
7
U 24 B
NJM 2904
R 146
100 K R 145
22 K
C 154
22 u /10 V
3
2
1
Q 25
MMBT 1815
GND
R 284
10 K
CLIP _ LD
VU - LED
D 32
D 31
1 N 4148
D 33
1 N 4148
R 141
10 K
C 151
47 p
+
3
-
2
O
1
V
+
8
V
-
4
U 24 A
NJM 2904
R 144
220 K
R 143
220 K
R 142
220 K
+5 VD
C 32
1 u /16 V
C 34
1 u /16 V
GND +2 V 5
C 153
100 p
R 147
150 K
R 148
330 R
R 135
2 K 2
R 134
10 K
R 133
120 K
R 136
10 K
1
2
3
Q 27
MMBT 1015
C 156
10 u /10 V
GND
R 149
18 K
VU - LED
+2 V 5
+2 V 5
R 137
2 K
R 138
3 K 3
C 157
10 u /10 V
3
2 1
Q 28
MMBT 1815
GND
C 158
10 u /10 V
GND
BY - PASS _ LD
POL _ LD
POL _ LD
GND
3
2
1
Q 29
MMBT 1815
R 139
4 K 7
GND
3
2
1
Q 30
MMBT 1815
R 140
4 K 7
BY - PASS _ LD
R 292
820 R
BK 3.3 V
R 291
10 K
BK 3.3 V
IN 1 P
IN 2 P
R 44 B
R 42 B
XL 2 O +
XL 1 O +
R 44 A
0 R
R 42 A
0 R
C 44 B
10 u /10 V
GND
C 43 B
10 u /16 V
R 24
100
R 25
100
-12 V
C 42
0.1 u
C 42 B
10 u /16 V
R 27
100
GND
C 41
0.1 u
C 41 B
10 u /16 V
R 26
100
C 13 A
0.01 u
C 12 A
0.01 u
C 11 A
0.01 u
EART H