background image

A

B

C

D

E

F

G

H

I

J

1

2

3

4

5

6

7

15.4V

15.4V

-15.4V

15.4V

-15.4V

15.4V

-15.4V

15.4V

-15.4V

-22.2V

22.2V

-15.4V

AUDIO UNIT (X09-5660-10)

IC1(4/4)

IC1(1/4)

D10

D49

D12

IC3(1/2)

S5

D50

D7

D5

IC1(3/4)

IC1(2/4)

D3

D1

FILTER SW

INPUT
SENSITIVITY

S1

S2

S3

OPERATION
SW

INPUT

SW

SELECTOR

OPERATION
SW

CN3

L

R

LINE IN A

J2

LINE OUT

R

L

LINE IN B

R

L

D46

D45

D47 D48

D52

D54

D6

D8

IC2(4/4)

IC2(1/4)

SENSITIVITY

INPUT

FILTER SW

D2

D4

D53

D51

IC2(3/4)

IC2(2/4)

S4

IC4(1/2)

IC4(2/2)

IC3(2/2)

D11

D9

Q54

Q55

Q1

D14

D13

D55

D60

Q5

Q9

D16

D15

Q13

Q58

Q14

Q18

D22

D21

D17

Q22

Q23

Q30

Q31

Q39

Q38

IDLE. ADJ.

D56

Q2

Q6

Q10

Q15

Q59

IDLE. ADJ.

D23

Q24

D18

Q32

Q25

Q40

Q19

D24

Q33

Q41

Q4

Q8

Q12

D58

D57

Q3

Q7

Q11

IDLE. ADJ.

Q21

D28

Q29

Q37

Q45

Q61

Q17

D27

Q28

D20

Q36

Q16

Q60

IDLE. ADJ.

Q27

D26

D19

Q35

Q26

Q44

Q43

Q20

D25

Q34

Q42

D29

D30

Q53

Q46

D31

D32

DIFFERENTIAL
AMPLIFIER

MUTE

RIPPLE
FILTER

MUTE

DIFFERENTIAL
AMPLIFIER

AMPLIFIER

DIFFERENTIAL

DIFFERENTIAL
AMPLIFIER

TEMPERATURE
COMPENSATION

TEMPERATURE
COMPENSATION

OVER-CURRENT
PROTECTION

OVER-CURRENT
PROTECTION

POWER

DRIVER

AMPLIFIER

DRIVER

AMPLIFIER

POWER

POWER
STAGE

STAGE

POWER

P. 
D

OVER-VO
PROTEC

CONSTANT

POWER SUPPLY

VOLTAGE

INPUT BUFFER /
ISOLATION AMPLIFIER

ISOLATION AMPLIFIER

INPUT BUFFER /

LPF

INVERTER

LPF

INVERTER

E2

D59

Q62

SPEAKER
LEVEL INPUT

47K

1000P

R6

C107

C106

1000P

47K

R5

300

R212

R222

300

12

13

4

14

1200P

C1

15P

C120

9.1K

R7

18K

R15

1K

R1

10u16

+

C5

5.6K

R33

18K

R19

5.6K

R34

2

3

1

15P

C27

5.6K

R41

51K

R23

68P

C127

5.6K

R45

0.33

C37

0.47

C33

18K

R55

100K

R59

0.047

C45

43K

R73

43K

R67

68K

R63

0.047

C41

3K

R77

0.022

C43

5

7

6

8

10u16

+

C49

6.8K

R85

47K

R83

62K

R75

1K

R31

1K

R2

R56

R20

18K

C121

9

9.1K

1200P

C2

R8

R16

18K

15P

C6

+

10u16

10

7

0.47

1000P

C17

5.6K

R42

5.6K

R35

C28

68P

C128

6

15P

5.6K

R46

R36

5.6K

8

5

C34

68K

0.33

100K

R60

18K

C38

R64

51K

R26

51K

R25

51K

R24

11

10K(A)

VR1

R70 560

R69 560

3

2

1

4

15K

R86

22P

C47

7.5K

R81

15K

R78

0.01

C116

0.1

C11

0.01

C117

0.1

C31

HPF

OFF

LPF

S5

22u16

+

C10

22u16

+

C9

2.2K

R52

2.2K

R51

2.2K

R49

2.2K

R50

MO

ST

A

AB

ST

MO

5

4

3

2

1

AL+

9

8

7

6

10

BL-

AL-

AR-

BR-

AR+

BR+

BL-

AL-

AR-

AR+

BR-

BR+

2.2K

R11

12K

R243

10u16

+

C20

12K

R242

10u16

+

C19

2.2K

R12

+

C22

10u16

+

12K

R245

C21

10u16

R244

12K

2.2K

2.2K

R14

R13

+

47K 10u16

10u16

C26

R249

47K

+

+

C25

C24

10u16

R248

+

47K

R247

C23

10u16

R246

47K

BL+

BL-

AL-

BR-

AR-

BR+

AR+

10u16

C8

R10

C7

10u16

R9

R4
1K

C4

1200P

1200P

C3

R3
1K

C18

C36

0.47

+

9.1K

18K

12

15P

C123

13

14

R18

18K

R22

C32

0.1

C30

5.6K

R40

R39

5.6K

1000P

R44

5.6K

15P

2

11

3

1

R48

5.6K

C130

68P

R62

100K

0.33

C40

18K

R58

S4

HPF

R66

68K

OFF

C119

0.01

LPF

R80
15K

R72 560

R82

7.5K

R88

C48
22P

15K

2

4

3

1

C35
0.47

C122

9

9.1K

R17

18K

15P

18K

R21

+

10

8

4

C16

0.1

7

R32

1K

R43

5.6K

R38

5.6K

C29

68P

C129

6

15P

5.6K

R47

R37

5.6K

5

VR2
10K(A)

0.022

R65

R68

0.33

R57

18K

100K

R61

0.047

C42

68K

43K

C39

C44

5

R74

47K

R71 560

R84

R79

43K

C46

0.047

3K

R76

62K

10u16

C50

+

R87

6

8

6.8K

7

C118

0.01

16K

R30

R29

16K

R28

16K

R27

16K

22u16

C52

+

150K

R97

10

R99

2.2K

R54

10u35

C126

+

10u35

C125

+

22u16

C51

+

2.2K

R53

10

R98

3.3K

R89

4.7K

R90

18K

R100

10u16

+

C57

680P

C53

10u35

C70

+

3.3K

R130

100

R113

820

R106

8.2K

R105

4700P

C62

47u25

C61

+

620

R121

47u25

C66

+

820

R117

18K

R125

6P

C74

470

R104

3.3K

R129

220

VR3

100P

C83

620

R139

2.2K

R138

10K

R137

100

R150

100u25

C78

+

82

R146

10u16

C79

+

100

R151

220

R169

3.6K

R160

3.6K

R159

470P

C90

470P

C89

1.8K

R174

0.1

R190

1.8K

R175

2.2

R176

0.1

R189

2.2

R173

100

R152

820

R118

C67

47u25

R107

820

8.2K

C54

4.7K

R91

680P

R101

18K

R92

3.3K

10u16

+

C58

R108

C75

R122

C63

4700P

R114

100

620

+

6P

10u35

R126

18K

C71

+

C80

10u16

1.8K

R179

R178

1.8K

2.2

R177

82

R147

100P

C84

R140

220

620

VR4

470P

3.6K

R161

C91

R153

100

R162

R170

470P

C92

3.6K

220

R191

0.1

R192

0.1

2.2

R180

R141

+

2.2K

100

R154

220u25

C87

+

R167

10

3.3K

R131

3.3K

R132

2W

2W

2W

2W

8.2K

R112

47u25

R110

18K

R103

680P

C56

4.7K

R96

3.3K

R95

C60

10u16

+

R111

820

R124

C65

4700P

R116

100

R128

6P

18K

C77

620

C69

R120

820

+

47u25

8.2K

C55

R94

4.7K

680P

18K

R102

820

3.3K

R93

C59

+

10u16

R109

6P

R115

C64

C68

R123

820

R119

4700P

100

620

+

C76

R127

18K

10u35

C72

+

3.3K

R133

R134

3.3K

R196

R172

C96

R166

3.6K

470P

R188

2.2

R187

1.8K

C82

10u16

R135

3.3K

R136

3.3K

10u35

C73

+

R144

620

R145

+

2.2K

VR6

220

100

R158

220

2W

0.1

620

R182

10u16

R143

R186

R185

2.2

1.8K

1.8K

R183

1.8K

2.2

R184

C88

220u25

+

C86

100P

82

R149

R165

470P

C95

3.6K

R157

100

82

R148

100P

C85

220

VR5

470P

3.6K

R164

C94

R156

100

R168

10

R163

R171

470P

C93

3.6K

220

R195

2W

0.1

2W

R194

0.1

2W

R193

0.1

2.2

R181

R142

C81

+

2.2K

R155

100

33K

R533

3.3K

R241

3.3K

R201

3.3K

R198

10u16

C115

3.3K

R200

3.3K

R199

47K

R197

33K

R202

W401

3300u25

C98

+

10

R204

3300u25

C97

+

2200P

C99

1/2W

Q5,6,9,10

Q1,2

Q3,4

Q7,8,11,12

Q16,17,60,61

Q14,15,58,59

Q18,19

Q20,21

Q22-25

Q26-29

Q30-33

Q34-37

Q38-41

Q42-45

Q54,55

IC1

IC2

B

B

B

+B

+B

+B

B

B

B

+B

+B

+B

B

+B

B

B

B

B

+B

+B

B

B

+B

B

B

B

+B

B

B

+B

B

B

B

+B

+B

+B

+B

B

+B

+B

B

B

+B

+B

+B

+B

B

+B

B

B

+B

+B

+B

+B

+B

+B

+B

100u6.3

C124

+

R254

47K

R253

47K

R252

R250

0.1

C133

+B

+B

Summary of Contents for KAC-6401

Page 1: ...07 00 N 3379 POWER AMPLIFIER KAC 6401 SERVICE MANUAL SPEAKER OUTPUT SIDE LINE INPUT SIDE 25 Accessory W01 1606 05 Screw set N99 1587 05 Fuse F52 0014 05 Connecting cord assy E30 6144 05 Dressing panel A21 4267 02 Heat sink F01 1726 01 ...

Page 2: ... Connect a cassette receiver or CD receiver IDLE Connect a DC A 1 CURRENT voltmeter across VOLUME 0 VR3 L ch 2 5mV a each resistor VR4 R ch R189 A Lch B R192 A Rch VR5 L ch R193 B Lch VR6 R ch R196 B Rch VR6 B Rch VR5 B Lch VR3 A Lch VR4 A Rch J3 SP OUT Lch Ach Bch Rch DC Voltmeter a 2 5mV R189 R192 R193 R196 ...

Page 3: ... R224 R14 R13 W61 R11 R12 W29 C1 C5 C2 C6 C3 C71 VR3 R90 C4 C114 C113 R132 W239 VR2 VR1 L2 R170 R171 C73 VR5 C109 R98 R99 C25 C26 C24 C23 C51 C52 C22 C21 C20 C19 W1 W87 R176 C45 C46 C98 C97 W73 W238 W138 W71 W133 W80 R173 R189 W220 W101 R91 R93 W401 R96 C112 W14 R225 R232 R220 W60 W240 R236 R237 R105 W13 W219 R125 C75 W20 W25 C99 R204 C9 C10 R126 W131 R31 R71 W132 C17 W88 R72 R32 C18 W172 R69 R70 ...

Page 4: ... 1K C18 C36 0 47 9 1K 18K 12 15P C123 13 14 R18 18K R22 C32 0 1 C30 5 6K R40 R39 5 6K 1000P R44 5 6K 15P 2 11 3 1 R48 5 6K C130 68P R62 100K 0 33 C40 18K R58 S4 HPF R66 68K OFF C119 0 01 LPF R80 15K R72 560 R82 7 5K R88 C48 22P 15K 2 4 3 1 C35 0 47 C122 9 9 1K R17 18K 15P 18K R21 10 8 4 C16 0 1 7 R32 1K R43 5 6K R38 5 6K C29 68P C129 6 15P 5 6K R47 R37 5 6K 5 VR2 10K A 0 022 R65 R68 0 33 R57 18K 1...

Page 5: ...8 OSCILLATOR REGULATOR REFERENCE AMP ERROR 27K R214 2 7K R216 10K TH1 2K R217 27K R215 1000P C108 1u50 C101 680K R213 6 8K R234 16K R235 1000P C110 10K R223 100u25 C112 680 R238 6 8K R239 10u16 C111 100u10 C109 22K R218 10K R221 L A F1 25A L B L B L A R B R A R B R A BATT GND P CON 10 R227 0 047 C103 10 R228 0 047 C102 0 047 C105 10 R230 0 047 C104 10 R229 10u16 C114 C113 3300u16 L2 W403 1 5K R237...

Page 6: ...1 4 12 702 14 13 7 8 3 Jx2 A B C E F G H K L 3x6 BLK 3x8 3x12 2 6x10 3x10 BLK M4x8 BLK 2 6x6 WASHER 4x6 TROX N89 3006 45 N89 3008 46 N87 3012 46 D M4 N09 4214 08 N09 4382 05 N80 3010 45 N09 4026 05 N89 2606 46 J M6 N07 0003 08 N15 1040 46 N09 6032 05 Dx9 5 L L 6 EXPLODED VIEW UNIT Parts with exploded numbers larger than 700 are not supplied ...

Page 7: ...CHIP C 0 047UF K C43 44 CK73GB1E223K CHIP C 0 022UF K C45 46 CF92FV1H473J MF C 0 047UF J C47 48 CC73GCH1H220J CHIP C 22PF J C49 50 CE04DW1C100M ELECTRO 10UF 16WV KAC 6401 AUDIO UNIT X09 5660 10 C51 52 CE04DW1C220M ELECTRO 22UF 16WV C53 56 CK45FB1H681K CERAMIC 680PF K C57 60 CE04DW1C100M ELECTRO 10UF 16WV C61 CE04DW1E470M ELECTRO 47UF 25WV C62 65 CK73GB1H472K CHIP C 4700PF K C66 69 CE04DW1E470M ELE...

Page 8: ...W R143 144 RK73GB2A621J CHIP R 620 J 1 10W R145 RK73GB2A222J CHIP R 2 2K J 1 10W R146 149 RK73GB2A820J CHIP R 82 J 1 10W R150 RK73GB2A101J CHIP R 100 J 1 10W R151 158 RD14NB2E101J RD 100 J 1 4W R159 166 RK73GB2A362J CHIP R 3 6K J 1 10W R167 168 RD14NB2E100J RD 10 J 1 4W R169 172 RD14BB2E221J RD 220 J 1 4W R173 RD14NB2E2R2J RD 2 2 J 1 4W R174 175 RK73GB2A182J CHIP R 1 8K J 1 10W R176 177 RD14NB2E2R...

Page 9: ...R DIODE D49 60 1SS133 DIODE IC1 2 NJM2060M ANALOGUE IC IC3 4 NJM4565MD IC OP AMP X2 IC5 UPC494GS ANALOGUE IC Q1 4 2SC945 A Q P TRANSISTOR Q5 12 2SA733 A Q P TRANSISTOR Q13 17 2SC945 A Q P TRANSISTOR Q18 21 2SC4137 V W TRANSISTOR Q22 2SC2412K TRANSISTOR Q23 24 2SA1037K TRANSISTOR Q25 26 2SC2412K TRANSISTOR Q27 28 2SA1037K TRANSISTOR Q29 2SC2412K TRANSISTOR Q30 2SC1627A TRANSISTOR Q31 32 2SA817A TRA...

Page 10: ...orth Ryde N S W 2113 Australia KENWOOD ELECTRONICS HONG KONG LTD Unit 3712 3724 Level 37 Tower 1 Metroplaza 223 Hing Fong Road Kwai Fong N T Hong Kong KENWOOD ELECTRONICS GULF FZE P O Box 61318 Jebel Ali Dubai U A E KENWOOD ELECTRONICS THAILAND CO LTD 2019 New Pechburi Road Bangkapi Huaykwang Bangkok 10320 Thailand KENWOOD ELECTRONICS SINGAPORE PTE LTD 1 Genting Lane 07 00 Kenwood Building Singapo...

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