1

2

3

4

5

6

7

8

A

B

C

D

8

7

6

5

4

3

2

1

D

C

B

A

R2

10K

R5

20K

3

2

1

8

4

IC1:1

TL072

C6

47UF

R1

1M

R3

100K

R4

47K

C12

683

C3

47UF

R75
47K5

R76
22K1

Q6

BC548C

Q7
BC557C

R47

2K2

R9

47K

R11

220K

VR2

B10K

C9

104

R10

100K

R18
2K2

R264

1K

R15

2K2

VR0:1

B100K

VR1:1

B100K

R41
15K

R23

1K

RS1A

10k

RS1B

10K

R58

100K

R57

2K2

3

2

1

8

4

IC3:1

LM833

C23

47UF

5

6

7

IC5:2

TL072

R42

1M

A

B

C

D

E

JK2

PHONE 6.3-2

VR3:1

W50KCC

OPT01
MPY7P

R43
4M7

R6
1K

R78

22K

R77

22K

Q8

BC548C

LD4:2

R79
2K2

C10

47UF

5

6

7

IC3:2

072D

R12

220K

C11

47UF

R13
4K7

R14

22K

R16
47K

C7

473

C8

221

C22

222

CN3-2

RS1C

10K

R17

2K2

R19

100K

C13

474

R7

47K

3

2

1

8

4

IC2:1

LM833

R8

4K7

C5

220

C4

47UF

R46

100K

C1

100N

C2

100P

5

6

7

IC1:2

TL072

JK1

PHONE 6.3-1

SW2

Q1

BC560C

+VCC

-VCC

C14

223

R27

1K

RS2A

10K

RS2B

10K

VR4:1

W50KCC

RS2C

10K

C15

334

Q2

BC560C

+VCC

-VCC

C16

682

R31

1K

RS3A

10K

RS3B

10K

VR5:1

W50KCC

RS3C

10K

C17

104

Q3

BC560C

+VCC

-VCC

C18

102

R35

1K

RS4A

10K

RS4B

10K

VR6:1

W50KCC

RS4C

10K

C19

103

Q4

BC560C

+VCC

-VCC

C20

334

R39

1K

RS5A

10K

RS5B

10K

RS5C

10K

C21

334

Q5

BC560C

+VCC

-VCC

SW3

SW4

LD1:1

R44

2K2

+VCC

LD2:1

R45

2K2

+VCC

D1

1N4148

-VCC

+VCC

CN1A

R49

33K

VR7:1

B100K

R50

220R

R52

220R

5

6

7

IC4:2

LM833

R53

1K

C24

470

C25

47UF

CN2A

C26
47UF

C27

47UF

-15V

+15V

SW5

MUTE

R54

1K

R55
1K

R56
1K

LD6

+15V

D2

1N4148

C60

2U2

+VCC

R80
22K

R82

22K

R83
22K

C61
2U2

R81
2K2

Q9

BC557C

LD3

LD3

Z1

4V7

R84

2K2

+VCC

-VCC

+VCC

CN1B

R260
22K

C231

47UF

D204

1N4148

Q210

BC560C

R259

22K

R265

1K

R266

1K

JK2066

JK205

PHONE 6. 3-1

C232

47UF

R263

100K

JK204

PHONE 6.3-1

JK203

PHONE 6. 3-1

SW6

PRE

R262

22K

EF207

BF245

R267

22K

D205
1N4148

R261

1M

R268

22K

3

2

1

8

4

IC5:1

TL072

R269

22K

R273

220R

C34

47UF

R271

47K

3

1

2

JK207

XLR OUT

R272

220R

C233

47UF

R270

47K

R51

47K

R48

2K2

COMP ON

D3

1N4148

4V7

RET

re l2:2

C230

47UF

re l2:1

RETURN

SEND

TUNE OUT

LINE OUT

LD-OPT01:2

CONT ON

SW1

CN3-3

CN3-1

CN3-4

CN3-5

CN3-6

+VCC

-VCC

CN4-1

CN4-2

CN4-3

+VCC

CN4-5

CN4-4

-VCC

C228

47UF

C229
47UF

+VCC

-VCC

3

2

1

8

4

:1

re l2

R20
33K

SW2

R0

2K2

LD2:1

+VCC

CN3-7

THIS SYMBOL ALERTS YOU TO IMPORTANT OPERATING

NOTES:UNLESS OTHERWISE SPECIFIED

1.ALL RSISTORS VALUE AR IN OHMS 1/8W
2.ALL CAPACITIORS VLUE ARE IN UF

3.

AND MAINTENANCE INSTRUCTIONS IN THE ACCOMPANYING LITERATURE.

R235

1M

C219

104

SW8:1

CHASSIS

A4

DWG.NO. SCALE

1:1

SIGNATURE

DATA

Design

CHK

APP

Xuli

05.12.10

Part No:

Type:

SWEET25.1A

Name:

Power bass speaker system

WC SWEET25.1

1

2

3

4

5

6

7

8

A

B

C

D

8

7

6

5

4

3

2

1

D

C

B

A

F3

T0.5AL/125V

C52

1000U/35V

POWER SW:1

220V ~

F4

T0.5AL/125V

C53

1000U/35V

R125

2K7

MAINS IN

RR2

NTC100K

D19

1N4007

THIS SYMBOL ALERTS YOU TO IMPORTANT OPERATING

115V

0V

115V

0V

T1

R131

47K

R126

100K

C56

10U

C60

47UF

Q21

A13

R132

100R

R127

24K9

R124

100K

C55

10U

Q20

A13

C54

10U

R128

47K

R129

47K

NOTES:UNLESS OTHERWISE SPECIFIED

1.ALL RSISTORS VALUE AR IN OHMS 1/8W
2.ALL CAPACITIORS VLUE ARE IN UF

3.

AND MAINTENANCE INSTRUCTIONS IN THE ACCOMPANYING LITERATURE.

BR1

DF06M

C36

104/100V

C35

104/100V

BR2

KBPC2508

49V ~ 4A

49V ~ 4A

GND

R91

10K

R96

820R

R93

1K2

C39

2U2

C38

4700U/80V

Q11

SA92

R95

100R

R92

10K

R90

10K

C37

4700U/80V

Q16

BC557

R97

22K

R94

5K6

C40

221

F1

T6. 3AL/125V

F2

T6.3AL/125V

Q13

SA92

Q12

SA92

D9

1N4148

D10

1N4148

R98

10k

D11

1N4148

R100

1K5

R99

470R

Q26

KSP42

Q15

TIP48

RV1

250R

RR1

NTC10K

D12

1N4148

D14

1N4148

U3:1

CD4011BE

R106

33R

R107

470R

R108

470R

R110

33R

R111

100R

R113

R22

R115

R22

R112

1K5

R114

R22

R116

R22

R117

2R2

R119

R1

R118

R1

REL1:1

C46

104

SPEAKER

2

3

1

7 91

5

U2

1

3

2

7815

U1

Q22

A13

FAN

U3:1

CD4011BE

U3:1

CD4011BE

U3:1

CD4011BE

R123

10K

R122

470K

CN2B

Q23

A13

D20

1N4007

D18

IN4007

PHONES

-15V

+15V

-15V

+15V

POWER SW:1

220V ~

MAINS IN

120V

0V

120V

0V

T1

100-120V ~ 60Hz

220-240V ~ 50Hz

48V*2~

18.5V*2~

48V*2~

18. 5V*2~

18V~ 0.5A

18V ~ 0.5A

C44

1N

C45

470

R130

100R

R133

100R

RV2

500R

C41

10U

D17

1N4007

re l1

Q24

JE350

Q17

SA92

Q19

BC557

C43

10N

Q18

BC548

C42

10N

D13

1N4148

Q25

JE340

Q14

MJE5730

C34

470

D15

1N4148

D16

1N4148

Q27

MJ15003

Q28

MJ15003

Q29

MJ15004

Q30

MJ15004

Z101

27V

R140

470R

BR102

DF06M

RV108:1

500R

OPTO-LED

A

B

C

D

E

JK3

300W 4OHM

A

B

C

D

E

JK3

LINE OUT

SW8

HORN OFF

Q10

BC548

R136

47K

Q9

BC548

C57

220U

ROPTO

MPY7P

R67

100R

R68

100R

C58

104

C59

104

A4

DWG.NO. SCALE

1:1

SIGNATURE

DATA

Design

CHK

APP

Xuli

05.12.10

Part No:

Type:

SWEET25.1B

Name:

Power bass speaker system

WC SWEET25.1