Kenwood KAC-8404 User manual

This product uses Lead Free solder.

This product complies with the RoHS directive for the European market.

SERVICE MANUAL

B53-0600-00 (N)519

KAC-8404

POWER AMPLIFIER

Accessories

(W01-1606-05)

Screw & wrench key set

(N99-1820-05)

Connecting cord assy

(E30-6144-05)

19cm

4/3/2 Channel

LINE IN

SP LEVEL INPUT

SIGNAL SENSING

TURN-ON

FUSE[40A] P.CON LEFT

BRIDGED

POWER IN

SPEAKER OUTPUT

RIGHT LEFT

BRIDGED

SPEAKER OUTPUT

RIGHT

4/3/2 Channel

M type

E,K type

Dressing Panel

(A21-6635-02): (E,K type)

(A21-6636-02): (M type)

Fuse (40A)

(F52-0016-05)

KAC-8404

BLOCK DIAGRAM

50W x4ch / 4

75W x4ch / 2

LINE IN (0.2V~5.0V )

B.Boost SEL.

L..P.F / OFF/ H.P.F

SPEAKER LEVEL INPUT

F.P.H

F.P.L

F.P.H

F.P.L

F.P.H

F.P.L

F.P.H

F.P.L

)Bd21-(zH002zH05F.P.L

)Bd21-(zH002

zH05F.P.H

OUTPUT

ETUM

TTA

POWER AMP

ETUM

TTA

(INV)

POWER AMP

OUTPUT

ETUM

TTA

POWER AMP

ETUM

TTA

(INV)

POWER AMP

SENS.

VOL

SENS.

VOL

ssaB

tsooB

ssaB

tsooB

ST /

MONO

SEL

ST /

MONO

SEL

-OSI

PMA

-OSI

PMA

PMA-OSI

-L

-R

-L

-R

40Hz

+18dB

BATT.

GND

P- CON

POWER

INDI.

LAMREHT

TED

TESFFO-CD

TED

REWOP

FFO/NO

CD/CD

NOC

NAF

RVA

NAF

RETLIFCL

NOC-P

YTIROIRP

15V

RVA

DAOLREVO

TED

LANGIS

ROTCETED

IC3,4

IC1,2

IC2

IC3

IC2

IC3

IC8

IC9

IC8

IC9

IC5,7

Q709 Q701-704

Q11,12 IC5

Q707,708 Q703 Q710

IC4

Q301,315

Q302,316

Q401,415

Q402,416

Q303

Q304

Q403

Q404

TH1

X09-874 X08-443

X08-443

KAC-8404

COMPONENTS DESCRIPTION

ADJUSTMENT

No. ITEM ALIGNMENT POINT METHOD ALIGN FOR NOTE

1 IDEL CURRENT

VR5 (A-Lch)

VR6 (A-Rch)

VR7 (B-Lch)

VR8 (B-Rch)

Connet a DC voltmeter

between check land

(Refer to a ﬁgure)

2.5mV After Power on 5minutes

●PREAMPLIFIER UNIT (X08-4430-10)

Ref. No. Application/Function

IC1-3 HPF, LPF

IC4 Reverse circuit

IC5,7 Bass Boost

IC6,8,9 HPF, LPF

IC10 Attenuator circuit

Q301,302,315,316,

Q401,402,415,416 Attenuator circuit

Q303,304,403,404 Mute circuit

Q305-308,Q405-408 Differential circuit (First stage)

Q309,310,313,314,

Q409,410,413,414 Differential circuit (Second stage)

Q311,312,411,412 Current mirror

Q701-704 DC protection

Q705-708 Shock noise mute

Q709 Over current detection

Q710 Stabilized power supply

●AUDIO UNIT (X09-8740-10)

Ref. No. Application/Function

IC1-4 Isolation circuit

IC5 DC-DC IC

Q1,2 Switch

Q3-6 Gate driver

Q7-10 DC/DC comparator

Q11,12 Constant voltage circuit

Q301,302,401,402 Temperature compensation

Q303-306,Q403-406 Over current detection

Q307-310,Q407-410 Darlington

Q311-314,Q411-414 Final stage

Q701 Voltage supply

Q702 Over voltage detection

Q703 P-CON

Q704,705 Mute driver

Q706 Shock noise mute driver

Q707,708 Auto P-CON driver

VR8

VR7 VR6 VR5

X08-443 (B/2)

Q311

Q313

Q312

Q314

R319 W98

DC voltmeter

A-Lch 2.5mV

W83 R320

DC voltmeter

A-Rch 2.5mV

Q413

Q411

Q412

Q414

B-Rch

A-Rch

B-Lch A-Lch

DC voltmeter

B-Lch 2.5mV

W45

R420

R419

DC voltmeter

B-Rch 2.5mV

KAC-8404

ABCDE

AUDIO UNIT

X09-8740-10 (J76-0471-01)

C13

C16

C17

C4 C6

C12

C14

C217

C218

C701

C702

C703

C704

C705

R23

R319

R320

R321

R322

R323 R324

R423 R424

W87

W88

W100

W103

W67

W68

W73

W65

W95

W93

W78

W64

W55

W57

W59

W62

W101

W102

W104

W69

W51

W42

W54

W56

W58

W61

W41

W44

W43

W86

W76

W77

W45

W36

W75

W94

W80

W106

W79

W49

W47

W70

W40

W81

W39

W37

W38

W82

W99

W71

W84

W83

W50

W72

W66

W53

W35

W60

W48

W105

W85

W92

W97

W91

W74

W46

W89

W63

W52

W98

W90

EB EB

BE BE

BEBEB E

W232

W310

W241

R703

R701

R704

C214 C216

C10 C11

C207

C208

C209

C210

C211

C212

C301

C302

C303

C304

C305

C306

C307 C308

C407

C706

W906

R10

R11

R12

R13

R14

R15

R16

R17 SDG SDG SDG SDG

R18

R19

R20

R21

R22

R24 R25

R26

W286

R213

R214

R215

R216

R217

R218

R219

R220

W291

W305

R301

R302

R303

R304

R305

R306

R307

R308

R309

R310

R311

R312

R313

R314

R315

R316

R317

R318

R702

R705

R706

R707

R708

R709

R710

R711

R712

R713

R714

R715

R716

R717

R718

R719

R720

R721

111

122

R722

R723

R724

R725

R726

TH1

W236

W250

W235

W312

R28

W259

W277

W244

W238

W308

W260

W242

W293

W292

W272

W309

W269

W268

W270

W313

R727

W262

W299

W276

W301

W302

W300

W297

W298

W306

W294

W307

W280

W281

W287

W283

W284

W295

W304

W285

W303

W296

W278

W279

W273

W274

W289 W288

W290 W282

W275

W267

W23

W237

W231

W249

W239

W256

W248 W245

W247

W243

W266

W264

W234

W265

W240

W263

W258

W271

W252

W251

W257

W255

W261

W254

W246

W253

R331

R332

W31

169 14

BE BE

Q309

Q310

Q313

Q314

Q701

Q11

Q10

Q301

Q302

Q304

Q305

Q306

Q307

Q308

Q311

Q312

CN33

CN1

WH5

Q303

D709

D301

D302

D303

D304

D701

D702

D703

D704

D705

D706

D707

D708

D710

D713

Q5Q6

Q702

Q703

Q704

Q705

Q706

Q707

Q708

IC4

IC5

PC BOARD (FOIL SIDE VIEW)

KAC-8404

JIHGF

C17 C15

C100

C103

C104

C117

C118

C123

C124

C125

C126

C203

C204

C223

C224

C225

C226

W31

R419

R420

R421

EBEBEBEB

R422

R424

W27

W14

W29

W16

W30

W12

W13

W17

W11

W15

W19

W20

W21

W22

W10

W33

W32

W28

W18

W35

W34

W23

W24

W25

W26

W232

R27

C113

C114

C213

C115

C116

C215

C101

C102

C105

C106

C107

C108

C109

C110

C111

C112

C122

C201

C202

C205

C206

C222

C401

C402

C403

C404

C405

C406

C408

W203

EB EB

R100

R101

R102

R103

R104

R105

R106

R107

R108

R109

R110

R111

R112

R113

R114

R115

R116

R117

R118

R119

R120

W202

W209

W219

R125 R126

R127

R128

R129

R130

R201

R202

R203

R204

R205

R206

R207

R208

R209

R210

R211

R212

R225 R226

R227

R228

R229

R230

R401

R402

R403

R404

R405

R406

R407

R408

R409

R410

R411

R412

R413

R414

R415

R416

R417

R418

W212

W235

W222

W201

W205

W207

W221

W211

W204

W220

W226

W224

W213

W223

W210

W214

W216

W215

W233

W231 W225

W227

W228

W234

W206

W208

R431

W229

W217

W218

R432

W230

28 4

Q12

Q409

Q410

Q413

Q414

Q401

Q402

Q403

Q404

Q405

Q406

Q407

Q408

Q411

Q412

CN1

CN44

D101

D201

D102

D202

D103

D203

D401

D402

D403

D404

D711

D712

IC1

IC2

IC3

X09-8740-10

Ref. No. Address

IC1 6G

IC2 5G

IC3 6F

IC4 6E

IC5 6B

Q1 6B

Q2 6A

Q3 6A

Q4 6A

Q5 6B

Q6 6A

Q7 5B

Q8 4B

Q9 6B

Q10 5B

Q11 2E

Q12 2F

Q301 3B

Q302 2D

Q303 3C

Q304 2C

Q305 2B

Q306 2E

Q307 3B

Q308 2C

Q309 2B

Q310 2D

Q311 3B

Q312 2C

Q313 2B

Q314 2D

Q401 3G

Q402 4G

Q403 3G

Q404 4G

Q405 2G

Q406 4G

Q407 3G

Q408 4G

Q409 2G

Q410 5G

Q411 3G

Q412 4G

Q413 2G

Q414 5G

Q701 5D

Q702 6C

Q703 6C

Q704 5C

Q705 5C

Q706 6C

Q707 5C

Q708 5C

Refer to the schematic diagram for the values of resistors and capacitors.

KAC-8404

KLMNO

PREAMPLIFIER UNIT X08-4430-10 B/2 (J76-0468-02)

VR5

VR6 VR7

VR8

C706

R337

C301 C302

C309

C310

C319

C401

C402

C409

C410

C704

C707 C708

C710

C711

A-R

B-L

A-L

B-R

W86

W122

W104

W80

W78

W96

W103

W73

W82 W72

W83

W68

W107

W65

W63

W62

W75

W114

W116

W44

W19

W109

W60

W76

W77

W115

W69

W64

W88

W111

W101

W110

W105

W98

W87

W74

W70

C714

W89

W97

W99

W85

W95

W90

W93

W100

W81

W84

W94

W92

W91

W112

W117

W102

W61

W71

W66

W67

W120

W106

W108

W119

W118

W121

W265

C323

R344

R342

R736

C713

R311 R312

R411 R412

R723

R728

R708

R711

R719

C303

C304

C305

C306

C307

C308

C311

C312

C313 C314

C315 C316

C317

C318

C403

C404

C405

C406

C407

C408

C411

C412

C413 C414

C415 C416

C417 C418

C701

C702

C703

C705

C709

C712

R343

R301

R302

R303

R304

R305

R306

R307

R308

R309

R310

R313 R314

R315

R316

R317 R318

R319

R320

R321

R322

R323

R324

R325 R326

R327

R328

R329 R330

R333

R334

W935

W936

R401

R402

R403

R404

R405

R406

R407

R408

R409

R410

R413 R414

R415

R416

R417 R418

R419 R420

R421

R422

R423

R424

R425 R426

R427

R428

R429 R430

R433

R434

W945

W946

R701

R702

R703

R704

R705

R706

R707

R709 R710

R712

R713

R714

R715

R716

R717

R718

R720

R721

R722

R724

R725

R726

R727

R729

R730

C322

R338

R339

R341

R437

C423

R443

R441

R438

W264

C422

R735

R734

W276

R733

W250

W263

W275

711

111

82212

W271

C901

W270

W262

C903

W267

C902

W273

W254

R442

R444

R732

R731

W252

W258

W248

W261

W260

W251

W253

W257

W256

W255

W259

W272

W274

C904

C906 C908

C905 C907

BE BE

BEBE

BE BE

BEBE

IC10

Q309

Q310

Q311

Q312

Q313

Q314

Q409

Q410

Q411

Q412

Q413

Q414

Q710

CN22

CN3

CN6

CN7

CN4

CN5

Q709

D301

D302

D303 D304

D305

D306

D401 D402

D403 D404 D405

D406

D701

D702

D703

D704

D705

Q301

Q302

Q303

Q304

Q305

Q306

Q307

Q308

Q401

Q402

Q403

Q404

Q405

Q406

Q407

Q408

Q701 Q702

Q703

Q704

Q705

Q706

Q707

Q708

Q315 Q316

Q415

Q416

X08-4430-10 B/2

Ref. No. Address

IC10 6N

Q301 5M

Q302 4L

Q303 5L

Q304 4L

Q305 5L

Q306 4L

Q307 5L

Q308 4L

Q309 5L

Q310 4L

Q311 5M

Q312 4L

Q313 5L

Q314 4L

Q315 5M

Q316 4M

Q401 5M

Q402 4M

Q403 5M

Q404 4M

Q405 5N

Q406 4N

Q407 5N

Q408 4N

Q409 5N

Q410 4N

Q411 5N

Q412 4N

Q413 5N

Q414 4M

Q415 5M

Q416 4M

Q701 6K

Q702 6K

Q703 6K

Q704 6L

Q705 6L

Q706 6M

Q707 6L

Q708 6M

Q709 6L

Q710 6M

PC BOARD (FOIL SIDE VIEW)

Refer to the schematic diagram for the values of resistors and capacitors.

KAC-8404

TSRQP

PREAMPLIFIER UNIT X08-4430-10 A/2 (J76-0468-02)

200mV 5V

A-SENS

5V 200mV

L/OFF/HST/MONO

OFF/ON

B.B

ST/MONO L/OFF/H

50Hz 200Hz

AFBF

B-SENS

200Hz 50Hz

C111

C112

C113

C114

C119

C211

C212

C221

C222

C223

C224

C225

C226

C229

W11

W38

W20

W51

W10

W41

W47

W34

W43

W50

W46

W52

W55

W48 W49

W53

W56

W39

W36

W54

W30

W57

W59

W29

W23

W28

W35

W31

W25

W15

W27

W22

W18

W17

W58

W37

W13

W12

W42

W45

W21

W33

W26

W32

W14

VR1

VR2

VR3VR4

W225

W233

W204

W203

W210

W249

W242

C101

C109

C110

C116

C202

C205

C208

C217

C219

C102

C107

C108

C117

C201

C206

C207

C218

C220

C103

C104

C105

C106

C115

C118

C203

C204

C209

C210

C213 C214

C215

C216

C227

C228

R101

R102

R103

R104

R105

R106

R107

R108

R109

R110

R111

R112

R113

R114

R115

R116

R117

R118

R119

R120 R121

R122

R123

W901

W902

R203

R204

R205

R206

R207

R208

R209

R210

R211

R212

R213

R214

W236

R219

R220

R221

R222

R223

R224

R225

R226

R227

R228

R231

R232

R233

R234

R235

R236 R237

R238

R239

R240 R241

R242

R243

W221

W230

W215

W241

W219

W228

W232

W209

W238

W207

W220

W208

W211

W212

W214

W213

W231

W229

W224

W223

W246

W240

W245

W235

W244

W222

W226

W217

W243

W216

W268

W234

W269

W239

W227

W277

W205

W206

W202

W218

W237

W201

W247

W278

W279

W280

W281

W282

IC1

IC2

IC3

IC4

IC5

IC6

IC7

IC8IC9

CN2

CN11

S3 S4 S5

X08-4430-10 A/2

Ref. No. Address

IC1 5S

IC2 4S

IC3 3S

IC4 2R

IC5 2S

IC6 2R

IC7 2R

IC8 2Q

IC9 2Q

PC BOARD (FOIL SIDE VIEW)

Refer to the schematic diagram for the values of resistors and capacitors.

KAC-8404

X09-8740-10 (1/2)

ABCDE

+15.0V

-15.0V

(X09-8740-10)

D102

(1/2)

IC1

D101

(2/2)

IC1

D203

IC2

(1/2)

(2/2)

IC2

D713

D712

Q707

Q708

D5,101,201,711,712

D103

LM1MA142WA-G

LM1MA142WK-G

UDZS10BD704

D710

D708,709

B30-1743-05

B30-1770-05

D102,202,303,304,403,

D702

D701

D103,203

404

D8,9

UDZS15B

UDZS6.8B

UMZ6.8N

UDZS16B

FRH10A20

FCH10A20

D202

IC3

(2/2)

Q305,306,405,406

2SB1241Q701

703,705-707,713

D2-4,301,302,401,402,

Q702-704,706,708

Q705,707 :

1SS355

RM4ZLF-J4NF

2SA1576A(R,S)

2SC4081

Q313,314,413,414

Q311,312,411,412

Q309,310,409,410

Q307,308,407,408

2SA817A-F

2SA1695NF

2SC4468NF

2SC1627A-F

2SA992-A(F,E)

2SC1845-A(F,E)

2SC4097Q3,4

Q303,304,403,404

Q301,302,401,402

Q7-10

Q5,6

Q12

Q11

2SC3419(Y)-F

2SB1375-F

2SD2012-F

STP60NF06FP

2SA1577

TL494IDR

BA4560RFIC1-4

Q1,2

IC5

DTA114EUA

D201

IC3

(1/2)

IC4

(2/2)

D711

(1/2)

IC4

Q402

Q401

Q302

Q301

CN1 CN33

X08-A/2-

CN11 1/2

X08-B/2-

CN3

LEVEL IN

ISO

AUTO

P-CON DRV

ISO

R125

2.2K

R112

10K

R114

10K

C223

10u50

C225

10u50

C226

10u50

C224

10u50

C124

10u50

C126

10u50

C125

10u50

R108

R110

1000P

R102

C102

C104

10u50

R104

10K

12K

R106

4.7K

C106

15P

R107

10K10K

1000P

C101

R101

R103

10K

C103

10u50

R109 12K

BR+

BL+

BL-

BR-

R225

2.2K

100K

R227

R229

100K

R226

2.2K

R230

100K

R228

100K

AR+

AL+

AL-

AR-

100K

R126

2.2K

R130

R128

100K

R129

100K

C118

47u25

R118 10K

C112 100P

C111 100P

R117 10K

C117

47u25

C706

1000P

R724

10K

R723

100K

2.2K

C704

10u50

R722

C705

10u50

R726

10K

R725

4.7K

C123

10u50

R212

10K

R214

10K

R213

10K

TP100

-REDR-

R127

100K

C204R202

1K 10u50

C206

R206

4.7K

15P

R210

12K

R208

10K

C215

0.01

1000P

C201

R203

10K

R209 12K

R207

10K

R201

C203

10u50

C17

47u25

C16

47u25

R218 10K

C208

100P

6C218

47u25

C212 100P

R217 10K

C211 100P

C207

100P

100u25

C14

100u25

C15

C217

47u25

R432

1.8K

R332

1.8K

R431

1.8K

10K

R111

4.7K

R105

15P

C109

15P

C105

100P

C107

10K

R115

10K

R113

TP103 TP107

TP105

15P

C110

100P

C108

10K

R116

TP106

TP104 TP108

1000P

C100

R100

47K

R120

47K

R119

0.01

C115

0.01

C113

TP203

TP205

TP207

TP204

TP206

TP208

1000P

C202

10K

R204

0.01

C213

10K

R216

15P

C210

47K

R220

15P

C205

4.7K

R205

10K

R211

15P

C209

10K

R215

47K

R219

1.8K

R331

TP213

TP214

TP212

TP211

TP111

TP112

TP113

TP114

TP722

TP723

TP721

ISO-AL

ISO-BL

GND

ISO-AR

5672

-15V

ISO-BR

+15V

1 3

AL33

AR36

AL34

AR35

AL31

AL32

TP202

TP201

TP102

TP101

0.01

C122

0.01

C222

TP210

TP120

TP110

TP304

TP302

TP306

TP305

TP301

TP303

D701

Q703

0.01

C114

0.01

C116 0.01

C216

0.01

C214

AR-

AL-

AR+

AL+BL+

BL-

BR-

BR+

BL+

BR-

BL-

BR+

AL+

AR-

AL-

AR+

+15V

15V

+15V

15V

+15V

15V

+15V

15V15V

+15V

CAUTION : For contin-

ued safety, replace safe-

ty critical components

only with manufacturer’s

recommended parts (re-

fer to parts list).

Indicates safety critical

components. To reduce

the risk of electric shock,

leakage-current or re-

sistance measurements

shall be carried out (ex-

posed parts are accept-

ably insulated from the

supply circuit) before the

appliance is returned to

the customer.

• DC voltages are as

measured with a high

impedance voltme-

ter. Values may vary

slightly due to varia-

tions between indi-

vidual instruments or/

and units.

KAC-8404

X09-8740-10 (2/2)

JIHGF

37.3V)33.6V(MAX

5.0V

14.4V

-33.6V

33.6V

IC5

KAC-8404 (1/2)

Q12

D8D9

Q11

Q10 Q8

Q9 Q7

Q408

Q402

D402

Q404

Q412

Q409

Q406

D404

Q401

D403

Q405

Q410

Q414

Q413

Q407

Q308

D302D401

Q403

Q302 Q304

D304

Q306

Q411

Q312

Q309

Q307

Q305

D303

Q301 Q303

D301

Q310

Q314

Q313

Q311

Q706

D710

Q704

D707

D706

Q705

D705

D704

Q703

Q702

D701

D702

D708

D709

CN44 WH5

Q701

D703

1/2

08-B/2-

N3 X08-B/2-

CN4 1/2

CN5

X08-B/2- 1/2

SIGNAL LINE

B LINE

GND LINE

DC/DC

CONVERTER

MUTE

DRV.

P-CON

DC/DC CONTROL

47u25 47u25

C13

3300u50

C12

3300u50

100u25

R27

5.6K

C14

100u25

C15

R26

5.6K

C7 10

C11

1500P1/2W

R25

10 C10

1500P

R24

1/2W

R23

2200u16

R18

4.7K

1500P

R22

R20

1/2W

R21

R17

4.7K

R19

1000P

R432

1.8K

R402

100

1.2K

R406

C404

4.7

R412

R420

0.1

1000P 1000P1000P

C406

R408

1.2K

R404

100

R403

100

1.2K

R407

C405

1.2K

R405

C403

R422

0.1

R413

4.7

1000P 1000P

R332

1.8K

R431

1.8K

R401

100

R302

100

C304

R306

1.2K 1.2K

R308

C306

R312

4.7

R310

470

R320

0.1

4.7

R318

R322

0.1

TP718

1000P1000P

R307

1.2K

C305

R304

100

R303

1.2K

R305

C303

100

R301

R321

0.1

R314

R313

4.7

R317

R315

R309

470

R319

0.1

R311

4.7

R14

1.5K

R16

R15

R12

10K

TH1

TP9

VCC

GND

R715

1.5K

R713

10K

R714

C703

33u35

R712

33K

2.2u50

47u25

10K

OUTCTRL

REF

IN2-

IN2+

DTC

FBACK

IN1-

IN1+

TP4

TP3

C702

10u50

R711

10K

R710

4.7K

R708

R707

R706

1.5K

C701

10u50

6.8K

2.2K

R721

R727

2.2K

TP701

C307

0.047

R323

1/2W

0.047

C308

0.047

C407

C408

0.047

1/2W

R324

1/2W

R423

R424

1/2W

BR+

BR-

BL-

BL+

TP760

AR+

AR-

AL-

AL+

P-CON

GND

BATT

10u50

TP758 40A

4.7

R414

R418

R416

470

R410

0.1

R419

0.1

R421

4.7

R411

R417

470

R409

R415

R316

C302 0.01

0.01

C402

0.01

C401

TP308

TP322

TP318

TP312

TP316

TP320

TP310

TP314

TP326

TP324

TP307

TP321

TP317

TP311

TP315

TP319

TP309

TP313

TP325

TP323

1.8K

R331

C301 0.01

TP704

TP707

TP706

TP716

TP709

TP713

TP711

TP712

TP715

TP717

TP714

TP705

TP702

Q703

D701

3.9K

R702

33K

R709

3.9K

R703

100

R716

TP708

TP710

TP26

TP25

TP24

TP23

TP22

TP21

TP16

TP15

TP18

TP20

TP19

TP17

TP13

TP14

R13 1.5K

BR46

BR47

BR48

BL44

BR45

BL41

BL42

BL43

12311

GND

-B

9103

AL33

AR36

AR37

AR38

678

AL34

AR35

45 4

PRTECTION

DC OFFSET

POP MUTE

A-MUTE

ATT

7856

SW14V

GND

CURRENT

231

1000P

22K

R4 TP7

TP6

TP5

10K

2.2K

R28

0.01

TP8

10K

470

100K

4.7K

R11 1M

6.8K

R10

TP10

TP759TP2 TP1

TP720

TP719

TP29

TP28

TP27

TP34

TP33

TP35

TP31

TP30

TP32

TP12

TP11

TP306

TP305

TP303

10u50

OVER

30K

R705

3.9K

R701

3.9K

TP703

R704

47K

R717

47K

R719

47K

R718

47K

R720

+15V

15V

SW14V

SW14V SW14V

KAC-8404

X08-4430-10 (1/3)

KLMNO

(X08-4430-10) (A/2)

IC7

(1/2)

IC6

(1/2)

IC6

(2/2)

IC7

(2/2)

IC5

(1/2)

(2/2)

IC5

IC9

(1/2)

IC8(1/2)

IC8(2/2)

IC9

(2/2)

CN11

IC1

(2/2)

IC1(1/2)

(1/2)

IC3

IC2(1/2)

IC2(2/2)

(2/2)

IC3

IC1-10 : BA4560RF Q301-304,315,316,401-404,

415,416,702-705,707,709

: 2SC4081

Q305-308,405-408,701,706,

708 : 2SA1576A(R,S)

Q309,310,313,314,409,410,

413,414 : 2SC1845-A(F,E)

Q311,312,411,412

: 2SA992-A(F,E)

Q710 : 2SD1863

D301-304,401-404,702,703,

705 : 1SS355

D305,405 : LM1MA142WK-G

D306,406 : LM1MA142WA-G

D701 : UDZS10B

D704 : UDZS12B

1/2

CN1

X09-

SIGNAL LINE

B LINE

GND LINE

HPF/OFF/LPF

ST/MONO

HPF/OF

B.B

ON/OFF

ST/MONO

FREQ-

UENCY

LPF

HPF

INV

LPF

HPF

FREQ-

UENCY

BASS

BOOST

R214 R213

R204

4.3K

10K

R208

10K

R210

TP211

R211

33K

R212

C210

0.47

33K

TP213

C209

0.47

R203

C203

100P

R205

2.4K

TP205

4.3K

10K

58 R207

TP209

R209

10K

TP207

C218

C216

0.047

R224

7R226

10K

R222

10K

C226

R238

22K

10u50

50K(C)

VR3

R228

220

R220

100K

0.33

2.2K

C214

TP217

C212

4.7u50

C211

220

4.7u50

10u50

0.01

C219

C222

10u50

R232 16K

2C224

R236

22K

R234

TP230

TP229

R221

R219

100K

TP221

TP227

TP225

10K

R233

5C223

10u50

810u50

C221

R237

22K22K

R235

22K

C225

10u50

+15V

-15V

ISO-BR

ISO-BL

NC 6

GND

ISO-AR

ISO-AL

10K 4

R102

C101

0.01

50K(C)

10K

VR1

R101

R103 10K

10K

R110

C104

10K

0.047

R112

R106

R108

2.2K 0.33

C106

R118

C112

10u35

22K

C114

10u35

TP12

R120

15K

R111

R107

2.2K 0.33

C105

R105

10K

R109

C103

10K

0.047

10u35

R117

C113

10u35

22K

R119

100

C115

4700P

C111

0.01

C117

C116

R113 16K

C108 0.01

C110 0.01

C109 0.01

C107 0.01

TP115

TP116TP114

TP113

TP111TP112

22K

R115

22K

R116

TP108

TP110

TP109

TP107

TP103 TP105

TP101

TP104

TP102

0.01

C102

TP106

10K

R104

TP119 TP117

TP118

0.01

C201

0.01

C206

0.01

C205

0.01

C202

TP203

0.01

C208

TP23

R223

R231 16K

0.33

C213

2.2K

R227

TP215

TP219

C207 0.01

TP204

TP206

TP208

TP210

TP218

TP214

TP212

C204 100P

R206 2.4K

C220 0.01

C217 0.01

0.047

C215

10K

R225

TP228

TP220

TP216

TP222 TP226

0.01

15V

+15V

15V

+15V

16K

R114

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