background image

1

1

2

2

3

3

4

4

5

5

6

6

7

7

8

8

D

D

C

C

B

B

A

A

VDD

+12V

L IN

R IN

SW IN

SGND

L OUT

R OUT

SW OUT

VCC

12V

C33

4.7u

R20

2.7K

C30

562

R214.7K

R17

27K

C31

101

R24

100K

VFER

C48
104

C35

4.7u

C42
221

C63
221

C58

4.7u

R31

2.7K

R32

4.7K

C53

562

R2927K

C56

101

C59

4.7u

R34
100K

C64 104

VFER

C46

104

C47
100u

+12V

R36

75k

R37

75k

R39

10K

C70

104

C69

104

C80
103

C79
104

R52

1K

R44

30k

R57
100K

V

F

E

R

R47

3.3K

R48

1.8K

C68

4.7u

C81
2.2n

C82

106uF

R38 10k

R49

470R

C67

273

R58
100K

V

F

E

R

C84
104

C83
100u/16V

+12V

C71

10u

C41
221

R22

3.6k

R25
12K

R35
12K

R33

3.6k

C62
221

VFER

C87

1000u/35V

C88

104

R60

4.7k

Z1

12V/0.5W

C86

104

C90

100u/16V

R61

10K

R62

10K

C89

104

C85
470u/16V

R10
NC

R11
NC

R13

NC

L_IN

R_IN

1

2

3

4

8

G

N

D

V

C

C

U3A

JRC4558

5

6

7

U3B

JRC4558

1

2

3

4

8

G

N

D

V

C

C

U4A

JRC4558

5

6

7

U4B

JRC4558

FB14600R

FB13600R

FB11600R

FB12

600R

FB8

600R

FB7

600R

FB6 600R

FB10

600R

FB15600R

FB16

300R

C38

154

C60

154

MIC_IN

EAR

1

6
7
8

9

10
11

J2

1

6
7
8

9

10
11

J4

EAR

L IN

R IN

SW IN

1

2

J3

DC26V  2.7A

SGND

L OUT

R OUT

VCC

MUTE

AMP

SW OUT

3

2

VR1A

VOL/10K

4

6

5

VR1B

VOL/10K

7

8

VR1C

VR_6

LED1

blue

MIC_out

MIC_LIN

R8

6.8K

MIC_RIN

PGND

PGND

MIC_Rout

MIC_Rout

3

2

VR2A
BASS/10K

MIC_Lout

MIC_Lout

4

6

5

VR2B

BASS/10K

1

2

3

4

5

6

7

8

9

10

11

12

COM1

12PIN

1

6

J1

JK_IN_D3.5

AUX_IN

R15 1K

HUIYANG EASTERN ASIA ELECTRONICS CO.,LTD

MIC_LIN

MIC_RIN

PGND

1

2

3

4

5

6

COM2

1

2

3

4

5

6

COM3

C2

33P

V R

C3
33P

L

R

R

L

R1

1K

R6

1K

1

2

3

4

5

6

7

8

9

10

JK1

RCA5

ROUT+

LOUT+

SUB+

SUB-

R23

1K

C43
100P

R26
10K

C40

102

>3V=MUTE  0V=WORK

Q1

2SA733

D1

1N4148

C78

470uF/16V

NOTE:

C77(NC)

100uF/16V

R40

1k

R56
3.3k

R42(NC)

0R

C75(NC)

470p

R51

1k

+12V

D2

1N4148

C76
104

R53

10K

LOUT-

ROUT-

8ohm/40W

L_IN

R_IN

PVCCL

1

SD

2

PVCCL

3

MUTE

4

LIN

5

RIN

6

BYPASS

7

AGND

8

AGND

9

PVCCR

10

VCLAMP

11

PVCCR

12

PGNDR

13

PGNDR

14

ROUT

15

BSR

16

GAIN1

17

GAIN0

18

AVCC

19

AVCC

20

BSL

21

LOUT

22

PGNDL

23

PGNDL

24

U1

IC-TPA3123D2

R4

10K

VDD

C6
102

C1

474

R2
10K

C17

102

C14

474

R9
10K

C16

105

C20

104

C22
105

L1

L_33UH_12.5TS

L2

L_33UH_12.5TS

C13

104

C18
104

C11

224

C19

224

+

C15

1000uF/35V

C12

104

R7

0R

R12 0R

R5

1K

6ohm/15W

6ohm/15W

PVCCL

1

SD

2

PVCCL

3

MUTE

4

LIN

5

RIN

6

BYPASS

7

AGND

8

AGND

9

PVCCR

10

VCLAMP

11

PVCCR

12

PGNDR

13

PGNDR

14

ROUT

15

BSR

16

GAIN1

17

GAIN0

18

AVCC

19

AVCC

20

BSL

21

LOUT

22

PGNDL

23

PGNDL

24

U2

IC-TPA3123D2

R18 10K

VDD

C44

105

C54

104

L3

L_33UH_12.5TS

C39
224

C50
224

C34

224

C52

224

+

C45

1000uF/35V

C37

104

R27 0R

R28 0R

R19

1K

C57

105

SD

SD

Q2(NC)

2

S

C

9

4

5

MUTE

MUTE

C4

104

C26

104

R41

1k

FB3
300R

FB9
300R

C5

105

C7

470u/35V

C27

105

C25

470u/35V

C10

470u/25V

C21

470u/25V

LOUT+

LOUT-

ROUT-

ROUT+

FB1

300R

FB2

300R

C9
220P

C8
182

R3
5.6R

C23

220P

C24
182

R14
5.6R

L4

L_33UH_12.5TS

C55

220P

C61
182

R30
5.6R

FB5

300R

FB4

300R

C29
220P

C28
182

R16
5.6R

SUB+

SUB-

C36

104

R59

NC

C91
105

C92

105

C66

10uF

R67

1K

R681K

R65

75K

C65

104

R72

100K

VFER

C97
104

C93

10uF

C96
221

C98
104

C94

10uF

R69

2.7K

R71

2.7K

R6675K

C74

101

C95

10uF

R73
100K

C102104

VFER

C99

104

C101
100u

+12V

1

2

3

4

8

G

N

D

V

C

C

U5A

JRC4558

5

6

7

U5B

JRC4558

R70

3.9K

R50
1k

R64
1K

R54

1K

C51
100P

R63
10K

C49

102

C32

10uF

C100
10uF

Q4

8050

R74

2K

12V

MUTE

SD

R43

100R

+12V

Summary of Contents for SW-G2.1 3000

Page 1: ...Service Guide Model No SW G2 1 3000 SERVICE GUIDE KYESYSTEMS CORP Page 1 17 ...

Page 2: ...Service Guide Model No SW G2 1 3000 Revision History Version Date Change 1 0 16 11 2011 First Release Page 2 17 ...

Page 3: ...urns 5 1 1 Speaker no sound 1 2 Power LED no light 1 3 Headphone no sound 1 4 Bass Volume no function Chapter 2 Specifications 10 Chapter 3 Block Diagram 11 Chapter 4 Exploded View 12 13 Chapter 5 Part List 14 Chapter 6 Schematic Diagram 15 Chapter 7 Important Notes 16 7 1 Packing Requirement for Sending the PCB Assembly by Post 16 7 2 Short of Spare Parts while Repairing a Speaker System 16 Page ...

Page 4: ...ironments subject to mist smoke vibration excessive dust salty or greasy air or other corrosive gases and fumes Do not drop or jolt the speakers Do not allow anything to drop into the subwoofer case through its ventilator as it could result in fatal electric shock or fire Place the unit far enough from other equipments for good heat dissipation Disconnect the AC power cord from the AC outlet befor...

Page 5: ...ew Receiving Defective speakers from Customers Function NG __ __ Analyzing possible malfunction causes Function NG Deciding proceeding the rectification methods Function OK Replace necessary defective parts Function OK Return the speakers with proper repackaging to customers Page 5 17 ...

Page 6: ...Service Guide Model No SW G2 1 3000 Problems Item Problem Description 1 1 Speaker no sound 1 2 Power LED no light 1 3 Headphone no sound 1 4 Bass Volume no function Page 6 17 ...

Page 7: ...ems 1 1 One or more channels no sound Line in Audio in jack no function Problem Analyze and Identify Cause Solution Speaker no sound Component cold solder or Short Circuit Defective U1 U2 U3 U4 U5 Speaker cable disconnect JK_IN_D3 5 JK1defective or speaker damaged Check solder point on PCBA Check and Replace defective IC Reconnect speaker cable or replace defective speaker driver and component Pag...

Page 8: ...ower LED no light Component cold solder or Short Circuit Defective D1 T1A U1 U2 Q1 TL431 or F4 8 Power Switch VR1 or LED defective Check solder point on PCBA Check and Replace defective IC or Fuse Replace defective Power Switch or LED Headphone no sound Component cold solder or Short Circuit J4 Phone jack defective Check solder point on PCBA Replace defective J4 Phone jack Page 8 17 ...

Page 9: ...3000 1 4 Bass Volume no function Problem Analyzer and Identify the Causes Solution Bass Volume no function Component cold solder or Short Circuit VR1 or VR2 defective Check solder point on PCBA Replace defective VR1 or VR2 Page 9 17 ...

Page 10: ...it Specifications 1 Out Power at THD 10 Sub W 40 2 Out Power at THD 10 Sat W 15 3 Sensitivity Sub mV 130 30 4 Sensitivity Sat mV 600 60 5 Freq Response 1KHz 3dB Hz 23 126 6 Freq Response 1KHz 3dB Hz 119 20K 7 Separation dB 40 8 S N ratio dB 70 9 Hum Noise Vol max mV 2 Page 10 17 ...

Page 11: ... SW G2 1 3000 Chapter 3 Block Diagram Audio in LCH RCH Headphone output LCH RCH Power Sw Tone Volume control Audio Amplifier IC TPA3123D2 LCH RCH Page 11 17 PRE Amplifier Line in LCH RCH Mic in LCH RCH Mic out LCH RCH PC SUB ...

Page 12: ...Service Guide Model No SW G2 1 3000 Chapter 4 Exploded View Page 12 17 ...

Page 13: ...Service Guide Model No SW G2 1 3000 Page 13 17 ...

Page 14: ...Service Guide Model No SW G2 1 3000 Page 14 17 ...

Page 15: ... 3 Photocoupler EL817A 1 U2 4 F09 1028009 00 Transformer 1 T1A 5 Bridge Rectifier 1 D1 6 STEREO CABLE 1 VMC700002 00 10 7 RCA CABLE 1 VRC220001 002 0 8 RCA CABLE 1 VRC155007 002 0 9 POWER CORD 2P 1 VPE003012 002 0 10 SPK UNIT 1 FSA511530 362 4 11 SPK UNIT 1 FSB524065 68 0 12 RCA CABLE 1 VRC155007 001 0 13 RCA CABLE 1 VRC155007 003 0 Page 15 17 ...

Page 16: ...Service Guide Model No SW G2 1 3000 Chapter 6 Schematic Diagram Pls refer to The Attachment Page 16 17 ...

Page 17: ...B R23 1K C43 100P R26 10K C40 102 3V MUTE 0V WORK Q1 2SA733 D1 1N4148 C78 470uF 16V NOTE C77 NC 100uF 16V R40 1k R56 3 3k R42 NC 0R C75 NC 470p R51 1k 12V D2 1N4148 C76 104 R53 10K LOUT ROUT 8ohm 40W L_IN R_IN PVCCL 1 SD 2 PVCCL 3 MUTE 4 LIN 5 RIN 6 BYPASS 7 AGND 8 AGND 9 PVCCR 10 VCLAMP 11 PVCCR 12 PGNDR 13 PGNDR 14 ROUT 15 BSR 16 GAIN1 17 GAIN0 18 AVCC 19 AVCC 20 BSL 21 LOUT 22 PGNDL 23 PGNDL 24...

Page 18: ... 7 8 9 10 11 J4 EAR L IN R IN SW IN SGND L OUT R OUT VCC MUTE SW OUT 3 2 VR1A VOL 10K 4 6 5 VR1B VOL 10K 7 8 VR1C VR_6 3 2 VR2A BASS 10K R26 1K MIC_LIN MIC_RIN PGND 1 2 3 4 5 6 COM2 1 2 3 4 5 6 COM3 C35 33P V R C36 33P L R R L LED1 blue C47 104 R37 1K R31 2K ...

Page 19: ...TVR1 MOV1 F4 8 T3 15AL 250VAC L1 L2 R1 R2 CX1 C1 T1A R41B TT T1D R17 D3 C2 U2A C5 7 6 3 1 5 8 2 4 U1 R19 Q1 R15 R9 R10 R7 R8 C3 C D2 D D4 R16 R5 R3 R6 R4 D20 C22 C R20 C20 C21 L3 R29 R26 R28 R24 C24 TL431 U2B R13 C6 C4 R14 R21 R25 R27 R22 AC IN AC IN V V C7 D5 ...

Page 20: ...essary to pack each PCB assembly with a separate static protecting bag in order to avoid static electricity Reliable external packing is also very important when sending PCB assembly by post in that it would avoid unnecessarily lost or damage 7 2 Short of Spare Parts while Repairing a Speaker System If you are short of spare parts when you have some speaker systems waiting to be repaired it would ...

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