Alto BLACK 15 SUB, Service Manual

Page: 8 / 34

SCHEMATIC DIAGRAM
AMP
- 8 -
G
D
S
Q 38
IRFB 4227
R 222
4
R 7
R 224
4 R 7
G
D
S
Q 37
IRFB 4227
L 201
34 uH
D 202
ES 1 GL
D 201
ES 1 GL
C 226
2 u 2/500 V
CH 1 O
+
C 3 A
100 u /16 V
R 241
47 K
+
C 2 A
100 u /16 V
3
1
4
2
5
RL 2
T 9 AS 1 D 12-12 form A
PGND
PGND
3
4 2
1
L 202
1
2
3
Q 33
ZXTP 25100 BFH
R 226
10 K
R 228
10 K
G
D
S
Q 36
IRFB 4227
R 221
4 R 7
R 223
4 R 7
G
D
S Q 35
IRFB 4227
R 225
10 K
R 227
10 K
3
2
1
Q 31
ZXTN 25100 BFH
1
2
3
Q 34
ZXTP 25100 BFH
3
2
1
Q 32
ZXTN 25100 BFH
1
1
2
2
R 244
2 K 2
C 227
C 224
0.47 u /250 V
C 225
0.47 u /250 V
C 221
1000 p /250 V
C 223
0.1 u /250 V
C 222
1000 p /250 V
R 232
1 R
R 231
1 R
R 233
1 R
+ VB
- VB
VCC
C 233
150 p /1 KV
R 236
130 K 1%
R 235 K
2
PGND
C 234
4700 p
R 237
18 K
GND
R 238 K
1
C 242
0.1 u
C 241
0.1 u
R 267
10 K
R 269
75 K
R 265
15 K
3
2
1
Q 41
MMBT 5551
1
2
3
Q 44
MMBT 5401
3
2
1
Q 42
MMBT 5551
3
2
1
Q 43
MMBT 5551
R 261
LR 2728-0 R 015
R 268
10 K
R 266
15 K
R 262
LR 2728-0 R 015
R 270
75 K
R 271
100 K
R 272
10 K
+
C 245
180 u /100 V
+
C 246
180 u /100 V C 244
0.1 u /250 V
C 243
0.1 u /250 V
PGND
PGND
OCS
PGND
LO
VS
R 218
4 R 7
R 214 0 R
1
R 217
33 K
R 220 K 7
4
VDD
1
GND
2
IN
3
COMP
4
CSD
5
VSS
6
VREF
7
OCSET
8
DT
9
COM
10
LO
11
VCC
12
VS
13
HO
14
VB
15
CSH
16
U 26 RS 2092 S
I
+
C 217
10 u /25 V
1
2
D 105
ES 1 GL
R 211 K 3
3
R 209 K 5
7
R 210 K 4
2
R 216
10 K
C 216
0.01 u
R 219 K 6
5
1 2
D 104
ES 1 GL
R 206
680 R
R 207
100
R 212 K 2
8
R 205 K
3
+
C 220
22 u /25 V
R 208
680 R
+
C 218
10 u /25 V
R 203
390 R
C 215
1000 p /250 V
C 214
1000 p /250 V
C 213
1000 P
+
C 219
10 u /25 V
+
C 212
10 u /25 V
R 204
200 R
1
2
D 102
ZD 5 V 6
1 2
D 101
ZD 5 V 6
HO
VB
R 201
- VB 1
+ VB 1
R 239 K
2
R 240
R 254
20 K
R 255
1 K
R 5 A
10 R
1
2
3
Q 3
MMBT 3906
R 4 A
22 K
R 11 A
4 K 7
1
2
3
Q 1
MMBT 3906
R 1 A
10 K
R 13 A
3
2
1
Q 2
MMBT 3904
R 9 A
10 K
R 14 A
3
2
1
Q 4
MMBT 3904
R 6 A
R 12 A
4 K 7
R 3 A
22 K
R 2 A
10 K
D 1
1 N 4007
1
2
D 2
ZD 5 V 6
RLM
+
C 1 A
100 u /16 V
3
2
1
Q 5
MMBT 5551
PGND
1 2
D 3
ZD 6 V 8
PGND
DOS
3
2
1
Q 6
PGND 1
2
3
Q 7
R 15 A
R 16 A
3
2
1
Q 9
R 17 A
R 19 A
3
2
1
Q 8
1 2
D 4
PGND
TS
R 18 A
R 20 A
PGND
RYCON
DOS
RLM
1
2
3
4
5
6
7
CN 14 A
2.0 mm *7
GND
+12 V
-12 V
+12 V
R 276 R 275
1 R
1
1
2
2
R 245
2 K 2
1
2
P 01
PIN 6.3
VCC
OUT +
OUT -
C 247
2 u 2/25 V
C 248
2 u 2/25 V
VCC
LO
VS
HO
VB
- VB 1
+ VB 1
+12 V
1 2
D 106
ES 1 GL
1
2
D 203
1 N 4148
1
2
D 204
1 N 4148
1
2
D 205
1 N 4148
1
2
D 206
1 N 4148
1
2
P 02
PIN 6.3
1
2 P 03
PIN 6.3
1
2
3
CN 5
CON 2.5-3
1
2
P 04
PIN 6.3
1
2 P 05
PIN 6.3
C 4 A
R 21 A
OCS
R 22 A
68 K
3
2
1
Q 10
MMBT 3904
PGND
AMPSD
AMPSD
R 277
22 K
R 278
4 K 7
1
2
3
Q 46
1 2
D 208
1 N 4148
1
2
3
CNQ 1
2.54 mm *3
1 2
D 207
1 N 4148
B
C
E
3
2
1
Q 47
MMBT 3906
PGND
C 250
0.1 u /50 V
R 256
0 R
R 257
2 K 2
P - OFF
R 252
1 K
R 253
1 K
R 251
100 R
C 249
0.1 u /50 V
PGND
+12 V
TS
C 5 A
PGND GND EART H
C 229
0.1 u /50 V
C 228
0.1 u /50 V
1
1
2
2
R 246
10 R
C 235
0.1 u /250 V
GND
C 230
0.1 u /50 V
PGND
C 231
0.1 u /50 V
EART H