BOSE SD292131 Schematic

CLASS

DWG NO.

8

C102

TP131

TP134

R402

10.0K

C401
100pF

R502

10.0K

C501
100pF

R601

R701

0ohm

R801

0ohm

2

3

TP22

9

10

TP132

6

5

VREF

TP126

TP127

TP128

100pF

R103

20.0K

1/4

100pF

20.0K

1/4

C202

100pF

R203

20.0K

1/4

TP20

A

C601
100pF

A

A

1

TVSF0603

2

A

C302

R303

20.0K

13

12

R503

20.0K

R602

10.0K

R702

20.0K

C701

10pF

R802

20.0K

C801

U1
TL074C

U1
TL074C

U1
TL074C

C402

100pF

R403

1/4

1

8

7

4

11

TP135

TP119

TP123

A

C101
100pF

A

R102

10.0K

R302

10.0K

C301
100pF

VREF

DIN9

R101

10.0K

SG100

D

DIN3

TP282

P

R301

10.0K

SG300

P

VREF

TP121

P

SG400

A

R401

10.0K

R501

R202

10.0K

C201
100pF

VREF

TP124

A

TP125

P

TP99

R201

10.0K

SG200

TP302

DIN5

C

DIN4

DIN8

10.0K

SG500

TP74

TP90

A

10.0K

R15

10.0K
C30

0.047uF

R16

10.0K

P

B

2T

J4

2S

SG600

TP142

P

1T

J4

1S

SG700

P

A

TP80

SG800

P

1

8

+8V

TP42

TP23

U1
TL074C

-8V

TP36

14

TP16

TP17

2

3

6

5

R803

20.0K

C103

10uF

C303

10uF

C203

10uF

7

TP26

7

VREF

C602

100pF

R603

20.0K

1/2

C702

100pF

R703

20.0K

1/2

-8V

TP71

TP73

C403

10uF

C31

0.047uF

C29

0.047uF

U2
TL072

+8V

8

U2

4

TL072

C802

100pF

A

1

7

TP37

TP70

A

A

TP34

R57

10.0K

272952-02

C502

100pF

C603

10uF

C703

10uF

J6

1
2

TP69

5.1V

DGND

+8V

TP138

TP319

DGND

TP44

C

D8

A

TP48

R17

2.00K

SG4

0.047uF

TP318
TP317

TP129

A

C13
47uF

A

+5V
+8V

DGND

Y1

12.2880MHz

C16
39pF

TP88

+5V

C14

PA

6

17_L1
18_L2
20_L3

14_IN1R
13_IN2R
11_IN3R LOUDR_12

TP130

16_VCC
15_CREF
7_AGND

TP322

3_CSM

C50

0.047uF

J8

260636-10

NoPop

1 2
3 4
5 6
7 8
9 10

+5V
C17
39pF

C15

0.047uF

DGND

DGND

+5V

BAV99

D19

DIN7

P

R41

R45

10.0K

22

C

D14

5.1V

A

DGND

Q9

2SC2812

C

DGND

146817

Q8

2SC3395

E

DGND

DIN6

TAP IN

6

U3

TDA7309D

TP28

R54

49.9K

TP81

R42

20.0K

TP115

100K

R47

-8V

C28
1uF

TP29

B

DGND

RECOUTL_1

OUTL_2

LOUDL_19

RECOUTR_10

OUTR_9

ADDR_8

SDA_4
SCL_5

DGND_6

S1_4
S1_6

TP85

C24

0.047uF

TP295

CLOCK

DATA

TP139

R48

100K

TP286

TP320

TP65

TP321

TP66

TP79

TP89

TP285

+5V

DGND

TP93

D18 BAV99

5

TP64

TP284

C304

0.33uF

TP67

R106

2.49K

R206

2.49K

TP63

TP62

DGND

C305

0.33uF
DATA

CLOCK

TP118

TP283

R305

10.0K

R306

10.0K

C20
10uF

R39

7.5K

R40

49.9K

A

21_RESET
20_Vpp

25_VDD
22_VSS

24_OSC1
23_OSC2

3_PF0
4_PF1
5_PF4

U4

ST72324k

6_PF6
7_PF7 PC0_8

26_PE0
27_PE1
31_PD0
32_PD1

1_VAREF
2_VSSA

+5V

R46

1M

DGND

+8V

5

A

R304

12.1K
5

6

TP111

PA3_16
PA4_17
PA6_18
PA7_19

PB0_28
PB3_29
PB4_30

PC1_9
PC2_10
PC3_11
PC4_12
PC5_13
PC6_14
PC7_15

R56
100K

TP112

-8V

C204

10uF

1/4

R307

22.1k

R19
100K

R18

100K

U6
TL074C

TP84

TP91

TP92

TP297

TP296

7

TP86

DGND

TP108

TP87

TP5

TP4

TP8

TP9

147249

A1
A2

D17

R55

100

+12V

4

C104

10uF

4

TP122

TP68

TP13

TP11

DGND

S1_14
S1_12

S1_10

S1_8

TAP_OUT

TP78

BAV70
C

TP120

NJM13700

R25

10.0K

DGND

T1
T2

STBY1

MUTE_AMP

S1_4

S1_6

L1

330ohm

U5

TP136

R104

7.5K

V+

+5V

0.047uF

C26

P

C

R204

7.5K

DGND

B

NJM13700

B

TP137

U5

TP98

9

10

n
e
e
r
g

+5V

2

3

-8V

V­V+

+8V

1/4

TP49

E

Q3
2SA1341

R21

1.00K

R20

1.00K

TP32

2

DS1

1

P

Q2
2SC3395

C

E

P

TP103

C105

100pF

R105

49.9K

1/4

Ia

C205

100pF

R205

49.9K

U6
TL074C

TP51

DGND

146817

3

NJM13700

U5

1

U6
TL074C

-

Id

+

8

TP53

B

R44

10.0K

P

DIN7
DIN8
DIN5

DIN9
DIN2

DIN7
DIN8
DIN5

DIN9
DIN2

P

TVS_GND

MERGE AT PIN 19

3

TP105

-

Id

Ia

TP94

+

TP106

R107

274ohm

R26

TP96

100
R27

TP95

100

R11

10.0K

TP113

R207

274ohm

+12V

+5V

E

2SA1341
Q17

C

DIN2

C23

SG1

100pF

TP2

8B

2B

TP97

TP104

TP100

TP40

SG2

8A

TVS_GND AND P

R22

10.0K

9B

9A

2A

P

R24

100
R23

100

A

7B

7A

+5V

+5V

S1_4
S1_6

S1_8
S1_10
S1_12
S1_14

268894-002

6B

3B4B5B

1B

6A

3A4A5A

1A

TP301
TP316

A

DGND

OR

L_OUT
R_OUT

J5

TP46

TP101

TP102

268894-002

P

SD

R58

576

1.07K

R28

J5

C22

1000pF

292131

REV

0

1

0

2

REVISED PER ECN 45820

0

REVISED PER ECN 46428

TP144

SD103CW

R59

Q7
2SC2812

TP114

R13
432

D16

-8V

147249

A1
A2

BAV70

TP59

TP55

R30

R30

100K

4 5

R30

100K

100K

3 6

2 7

DIN6
DIN3

DIN1
DIN4

WT2

DIN6

P

DIN3

DIN1
DIN4

0.047uF

C32

NoPop

A

2

TP83

D20

DGND

C

TP58

100K

SH

1

REVISIONS

DESCRIPTION

N

CEREPDESIVER

4

TP141

R30

1 8

TP107

20.0K

100K

A

+40V

R33
200K

R31

R32

TP110

100K

R35

13.3K

DGND

LEFT MOST DIP SWITCH

R29

100K

2

4

6

10

12

13

TP75

Q4

2SA1179

+8V

1/4

-8V

R37

1.00K

TP82

4

11

14

U6
TL074C

TP109

SWITCHES SHOWN IN "UP" POSITION

SAFETY CONTROLLED

DESCRIPTION

FRAMINGHAM, MA 01701-9168

PC BOARD, SA2/SA3,
RoHS

DWG NO.

32108

CLASSFSCMSIZE

SDB

CAT. CODE *SCALE N/A

C18
10uF

D12

BAV99

TP140

292131

1

CHK

L

S

LS3

C19
10uF

R36

499

1

3

56

78

910

1112

1314

12

34

5

78

9

SHEET 1 OF

1

ENG

60KG

R38

4.99K

TP116

D13
BAV99

L_IN

R_IN

S1

274837-007

S2

274837-005

P

R

4

DATE

90/12/30KGLS0705
90/4

0

/

01/

11/50KG

D

C

B

A

REV

03

CLASS

8

7

6

5

4

3

DWG NO.

SD

292131

SH

2

1

STBY1

D

146563

C

HOT

NEUTRAL

TP346

R9
499

TP310

R1

TRIAC DRIVER

1_Anode

2_Cathode

3_NC

U7

Main-Ter_5

Main-Ter_4

253843

TP10

TP7

P

1

2

3

100

TP18

6

Q1

197226

TP21

3 2

4

!

1

TRIAC

C27

NoPop

!

TP15

F1

TP14

TP19

R10
220

TP287

C11

0.82uF

XFMR

!

FROM

TP299

TP298

TP24

TP25

TP27

TP38

TP39

TP41

!

C1

0.047uF

TP332

C2

0.047uF

TRANSFORMER

3.15A

TP1

!

J1

1
2

!

TP3

!

TP33

TP6

TP12

TP340

TP35

193369-002

RED

2
1

BLACK

J2

SA3/120V = PT271728
SA3/230V = PT271792
SA2/120V = PT271727
SA2/230V = PT271790

SECONDARY

BLUE

YELLOW

GRAY

YELLOW

BLUE

J3

133220-05

5
4
3
2
1

TP304

TP307

TP30

TP31

TP43

TP45

!

4

2

1

TP338

R905

2

TP335

BR2
193891-001

3

TP337

TP326

TP52

4

BR1
193891-001

3

1

TP329

TP331

P

TP334

TP50

P

TP47

TP336

TP327

TP54

TP330

TP333

C3

0.047uF

C4

0.047uF

TP328

A

C

+20V

-20V

C5

0.047uF

C6

0.047uF

D6
12V
135247-5242

C8
4700uF

TP56

C9
4700uF

+40V

TP342
C

2SC3395

E

B

Q14

R4
100K

P

C

146817

Q16

D1
BAV99

TP57

C

+8V

-8V

R2

10.0K

R3

10.0K

U8

78L08U

3

VOut

VIn

GND

2

9

U

1

G

N

D

u

O

t

n

I

2

0

L

7

9

8

A

C7
10000uF

-40V

1

3

STBY1

+40V

C10
10000uF

P

A

D7

5.1V
135247-5231

C

2SA1341

E

R8

0ohm

Q15

P

TP343

B

TP344

A

TP345

C

2SA1521

Q13

E

B

B

TP341

E

2SC3915

179639

C25

0.047uF

C21

0.047uF

TP281

TP60

Q6

2SA1179

R5

4.02K

P

P

RT2
10K

(LOCATE AT BR1)

D3
BAV99

TP61

R7
100K

P

R14

2.00K

RT1
10K

(LOCATE
AT BR2)

TP133

Q5

2SA1179

R6

4.02K

P

+12V

D

T2

D5

A

C

P

12V

T1

C

B

Variation Table

Var 1 name

Var 2 name

Var 3 name

Var 4 name

Var 5 name

TBL1

NOTES:

UNLESS OTHERWISE SPECIFIED:

1. ALL RESISTORS ARE EXPRESSED IN OHMS.

2. ALL CAPACITORS ARE EXPRESSED IN MICROFARADS.

3. FUSE F1 IS P/N 177311-03150.

4. FOR REFERENCE DESIGNATORS

A

ENCLOSED IN BOX

SEE VARIATION TABLE.

5. IF RT900, R903 AND D900 ARE NOT POPULATED,
R12 IS 150 OHM AND R905 IS 0 OHM, OTHERWISE
R12 IS 324 OHM AND R905 IS NOT POPULATED.

8

SA3_120V

SA3_230V

SA2_120V

SA2_230V

NONE

R49
1K

B

R900
619

TP900

+5V

U10

LM317MDT

3

IN

C12
1uF

P

ADJ

1

P

OUT

R901

1.82K

2

RT3
10K

TP300

WT1

Q12

TP291

P

R50
100K

0ohm

R12
150

NOTE 5

TP901

RT900
10K

NoPop

P

LOCATE
RT900
AT PIN 1
OF U150

TP72

P

-8V

A1

A2

R903
107

NoPop

D900

BAV70

NoPop

TP907

C

OR

2SC2812

TP292

R51

10.0K

TP290

Q11
2SC2812

P

TP289

R53

2.49K

R52

100K

Q10

2SA1179

TP288

A

ON GWDSSALCMCSFEZIS

32108

B SD

SCALE N/A CAT. CODE *

7

6

5

4

3

2

.

292131

SHEET OF

1

VER

03

2

4