BOSE SD187917 3 06 Schematic
8
7
6543 1
2
C
M178
M179
J7
+40VP1
1
2
3
4
5
6
7
8
9
10
11
12
10/35V
M191
C500
R503
1.0K
M193M192
R500
100K
R501
100K
P1
M181M180
M69
+20VP1
M190 M187M182
M183 M184
+12VP1
-12VP1
M186M185
F
MTS15
M188
M189
-12VP1
C518
10/35V
M67
+12VP1
3
U503
2
1
4
-40VP1
8
P1
-20VP1
TP97
65
NJM311
C533
0.1
M65
7
C532
+12VP2
MTS16
F
-12VP2
+20VP2
M207
3
2
4
C513
10/35V
M68
U502
1
M66
8
65
-20VP2
-40VP2
C534
0.1
NJM311
C535
0.1
P2
+12VP2
-12VP2
7
C511
10/35V
P2
TP104
Z
R517
1.0K
P2
C506
10/35V
CHANNEL TWO
CLASS-G POWER
2.49K
R543
20K
R529
C512
1000pF
AMPLIFIER MODULE
D503
136603
C510
10/35V
P2
C509
1000pF
R530
49.9K
P2
D510
136603
R545
47.5K
D511
MMBD914
R569
10.0K
Z
TP106
R527
2.49K
R526
10.0K
C522
10/35V
R525
100K
R546
100K
P2
R518
20K
P2
M210
M72
+12VP2
10
11
C523
10/35V
P2
2
3
4
9
R549
1.0K
Q506
2SC536
R524
1.0K
ININ+
IN+MUTE
STBY
MUTE
NC2
R519
10.0K
Q507
2SA608
R521
1.0K
+20VP2
+40VP2
R528
49.9K
12 7 13
NC3 +VS +PWVS
U501
TDA7294
STBYGND
-40VP2
P2
Q509
2SA608
R547
1.0K
Q510
R560
10.0K
R520
1.0K
R522
220
1W
R523
6.81K
-VS -PWVS
R550
6.81K
R548
220
1W
2SC536
R561
1.0K
R515
M195
M196
J8
C505
10/35V
+40VP2
1
2
3
4
5
6
7
8
9
10
11
12
R514
1.0K
100K
R516
100K
P2
M197
M204 M206 M199
M198
M200 M201
M203 M202
M70
M208 M209
M74
M205
C502
.01
D500
9.1V/225mW
BTSTRAP
1581
Z
D508
9.1V/225mW
C520
.01
OUT
NC1
+40VP1
14
6
5
-40VP1
Q502
TIP146T
D502
187479
C504
1000pF
C514
10/35V
C519
1000pF
D509
187479
Q505
TIP141T
+20VP1
D530
257661
D531
257661
-20VP1
P1
J501
L500
OPT
P1
R542
OPT
1W
R541
10
1W
C521
0.1
P1
C530
TP103Z
100pF
R568
5.9K
P1
R535
20K
CHANNEL ONE
CLASS-G POWER
AMPLIFIER MODULE
C503
10/35V
P1
1000pF
R532
2.49K
C515
1000pF
136603
R567
10.0K
D501
136603
C517
R531
49.9K
P1
D507
47.5K
MMBD914
R565
D515
TP99
R506
R505
1.0K
10.0K
Q501
2SA608
R507
1.0K
R508
220
1W
Q500
+20VP1
2SC536
R509
100K
R510
10.0K
Z
R533
2.49K
R536
100K
C529
10/35V
P1
10
11
C528
10/35V
P1
2
3
4
9
R537
1.0K
R512
1.0K
ININ+
IN+MUTE
STBY
MUTE
NC2
R511
6.81K
+40VP1
R534
49.9K
12 7 13
NC3 +VS +PWVS
U500
TDA7294
-40VP1
P1
TP101
R539
6.81K
Q503
2SA608
R538
1.0K
Q504
R564
10.0K
TP100
-VS -PWVSSTBYGND
R540
220
1W
2SC536
R563
1.0K
Z
0.1
P1
Z
R502
P1
1.0K
10/35V
C516
10/35V
C501
P1
M194
+12VP1
20K
R504
M71
C507
.01
TP107
Z
9.1V/225mW
BTSTRAP
1581
9.1V/225mW
Z
TP109
C524
.01
OUT
D504
NC1
D512
+40VP2
14
6
5
-40VP2
TIP146T
Q508
D505
187479
C508
1000pF
10/35V
C527
C525
1000pF
D513
187479
Q511
TIP141T
+20VP2
D532
257661
D533
257661
-20VP2
DD
P2
L501
OPT
J502
R562
P2
OPT
1W
R571
10
1W
Z
TP110
C526
C531
0.1
100pF
P2
R570
5.9K
P2
C
TS17
+40V
D601
R604
F
D600
187479
+20V
TS18
F
TS19
RELAY
F
TS20
F
-40V
-20V
C610
4700
C611
4700
R602
5.1 1/4W
R603
5.1 1/4W
M211
U600
LM7812
3
1
IN
OUT
GND
2
1
GND
IN
3
2
OUT
LM7912
U601
C612
10/35V
C613
10/35V
+12V
-12V
0.1
C614
C615
0.1
0
+20V
-20V
+12V
2
C620
0.1
R607
1.0K
R608
100K
R606
9.09K
D603
MMBD914
TP121
Z
G5
AmPlus 100 Amplifier
Q600
MMBT3904
Z
TP122
6
191928
K600
5
Q601
MMBT3904
-12V
FRAMINGHAM, MA 01701-9168
TM
R
B
A
C618
0.1
191928
K600
M111M110
F602
4.0A
Slo-Blo
191928
K600
13
C619
0.1
24
GBU6B
100V,6A
F601
Slo-Blo
170214
B
C602
0.1
Y-caps
LIVE
M75
C600
OPT
C601
G6
OPT
M76
F600
VR600
J605
J603
120V JUMPER CONFIGURATION
J606
J603
J605 J606
J601J601
BOSE P/N 187985
BLK
J601
1
WHT
2
ORG
3
4
BRN
5
RED
BOSE P/N 187985
BLK
BLUE
YEL
WHT
ORG
GRAY
BRN
YEL
RED
BLUE
BLUE
YEL
GRAY
YEL
BLUE
J602
1
2
3
4
5
M105
M106
M107
M108
0.1
C603
C617
0.1
C616
0.1
M113M112
120V ~
L
CHASSIS
GND.
E
N
IFC POWER
RECEPTACLE
220-240V ~
1000pF
C1
1000pF
C2
POWER SWITCH
J605
J603
J606
A
220-240V JUMPER CONFIGURATION
J600
1
2
BLK
WHT
ORG
BRN
RED
BOSE P/N 187985
NEUTRAL
BLUE
YEL
GRAY
YEL
BLUE
B600
GBU6B
C604
0.1
0.1
0.1
C605
0.1
C608
C609
C606
4700
C607
4700
187479
M80
G5
R600
10.0K
R601
10.0K
100V,6A
170214
M109
4.0A
B601
PCB 187917-001, 2
Service Manual P/N: 194101 Rev. 00
2345678
Rev. 5 Sheet 3 of 3
1
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