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Kenwood KAC-7204, Service Manual

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Kenwood KAC-7204 Service Manual Download Page 15

KAC-7204

PC BOARD (FOIL SIDE VIEW)

W225

R608

C36

C126

C129

C145

C148

R51

R241

R242

R1

R3

R5

R215

R216

R217

R218

R609

R661

C34

C120

C127

C146

C147

R35

R52

R600

R636

R638

R2

R4

R6

R629

R660

R664

R610

R612

R615

R49

R626

R640

C14

C52

C133

C134

C135

C139

C600

C609

C610

C614

C616

C617

C620

R9

R10

R15

R16

R18

R22

R24

R34

R58

R100

R115

R116

R118

R123

R124

R131

R133

R134

R135

R137

R140

R141

R143

R146

R147

R150

R159

R163

R167

R227

R228

R606

R613

R614

R633

R634

R646

R649

R659

R665

R666

R667

R668

TH601

TH602

TH605

C101

C102

C105

C106

C107

C108

C113

C114

C117

C118

C121

C124

C125

C128

C130

C131

C132

C137

C138

C141

C205

C206

C219

C220

C221

C222

C227

C228

C607

C613

C149

R11

R12

R13

R14

R17

R19

R20

R21

R23

R25 R26

R27

R50

R53

R54

R55

R56

R57

R59

R60

R61

R103

R104

R105

R106

R107

R108

R109

R168

R111

R112

R113

R114

R117

R119

R120

R121

R122

R125

R126

R127

R128

R129

R130

R132

R136

R138

R139

R142

R144

R145

R148

R149

R151

R152

R153

R154

R156

R157

R158

R160

R161

R162

R165

R201

R205

R206

R207

R208

R209

R210

R223

R224

R225

R226

R229

R230

R231

R232

R237

R238

R239

R240

R249

R250

R251

R260

R263

R264

R265

R266

R280

R281

R283

R285

R286

R287

R289

R290

R422

R423

R71

R602

R603

R604

R605

R607

R611

R617

R618

R620

R621

W321

R624

R625

R627

R628

R630

R631

R632

R635

R639

R643

R647

R648

R650

R651

R652

R653

R656

R658

R662

R663

R914

R915

R916

R72

W277

W255

R74

R73

W275

R696

W322

W200

W201

R169

W328

W270

W266

W202

W204

W211

W245

W223

W203

W205

W226

W218

W241

W252

W260

W250

W246

W234

W235

W227

W237

W228

W231

W269

W276

W272

W283

W287

W253

W323

W305

W304

W306

W303

W307

W308

W302

W309

W311

W310

W312

W208

W207

W206

W216

W209

W214

W213

W212

W210

W219

W313

W229

W217

W215

R691

W273

W258

W254

W256

W267

W232

W233

W224

W221

W325

W236

W230

W238

W292

W291

W294

W293

W296

W300

W301

C621

W295

W297

W298

W299

W244

W243

W249

W248

W239

W240

W242

W247

W280

W257

W265

W263

W268

W314

W259

W274

W281

W278

W261

W262

W324

W271

W279

W284

W286

W288

W315

W317

W318

W220

W282

R698

C232

C230

C233

C231

C698

W326

W320

R695

R694

R693

R692

R699

R171

R170

W327

R110

W285

C150

R62

B E

B E

B E

B E

B E

B

E

B E

B

E

B E

B

E

B E

B E

B

E

B E

B E B E

B E

B E

B E

B E

B E

B E

B E

B E

B E

1

8

16

9

4

1

5

8

5

8

4

1

5

8

1

4

5

8

1

4

5

8

1

4

1

4

5

8

1

4

5

8

1

4

5

8

E

B

SENS.

C7

C6

HPF-F

LPF-F

MAX

-15V

+15V

OUT

IN

B

E

E

B

R

SP-L

SP-R

+B

-B

SP-R

+B

-B

+B

SP-R

+15V

-15V

AGND

SP-GND

SP-R

BATT

FAN+B

AMP-IN-L

AMP-IN-R

R

L

PIN-G

LPF

SENS

BB

H/OFF/L

HPF

4.5V

SW14V

-15V

L

10

9

2

1

L

R

R

SP-R

SP-L

TH-GND

LED+B

SP-L

BB-G

L-NF

-B

+B

+B

-B

B

E

L+

L-

W13

W331

W332

W428

W151

W154

W427

W136

W181

W79

W152

W155

W157

W402

W426

W430

W97

W141

W142

W5

W400

W55

L3

W73

W404

W59

W70

W431

C223

W63

W403

W127

W196

W192

R697

W164

W145

W191

W405

W401

W69

W406

W407

W408

W409

W413

W410

W411

W412

W414

W415

W416

W417

W418

W419

W420

W421

W422

W423

W424

W199

W15

W27

W95

C699

W165

W425

W93

W429

W330

C2

W153

1

2

3

4

5

6

7

W21

W174

W173

C3

C611

C612

C615

C606

R202

C10

C11

L1

L2

C1

C16

C57

C58

C4

C5

C8

C9

C17

C19

C20

C50

C51

C140

C203

C204

C207

C208

C225

C226

C263

C264

C601

C602

C603

C604

C605

C608

C618

C619

R622

W23

R203

R204

W25

C13

C15

C18

C24

C103

C104

C109

C110

C111

C112

C115

C116

C119

C122

C123

C136

C143

C201

C202

C209

C210

C211

C212

C213

C214

C215

C216

C217

C218

W30

W31

W33

W24

R7

R8

R28

R29

R30

R101

R102

R155

R273

R277

R274

R278

R211

R212

R213

R214

R219

R220

R221

R222

R233

R234

R235

R236

R243

R245

R246

R247

R248

R257

R258

R261

R262

R271

R272

R275

R276

R279

R282

W29

W32

W34

R616

R619

W129

W198

W147

W146

W119

W118

W4

W182

W115

W26

W104

W121

W53

W125

W37

W123

W28

W38

W42

W114

W56

W58

W65

W67

W66

W72

W75

W62

W60

W90

W64

W149

W88

W77

W91

W100

W194

W193

W186

W187

W188

W189

W190

W185

W184

W183

W180

W179

W178

W175

W148

W87

W170

W167

W169

W168

W172

W171

W177

W176

W22

W20

W35

W36

W48

W47

W46

W45

W52

W51

W89

W74

W86

W41

W40

W43

W195

W44

W111

W110

W109

W108

W113

W112

W83

W82

W81

W80

W85

W84

W139

W138

W54

W135

W137

W140

W144

W150

W128

W124

W122

W99

W96

W94

W71

W92

W61

W68

W106

W117

W39

W50

W76

W166

W101

W78

W105

W107

W116

W49

W130

W131

W143

W156

W161

W160

W159

W158

W162

W163

W134

W133

W132

W120

W11
W12

W16

W14

W10

W197

VR1

VR2

VR3

VR4

B

E

B

E

L

MAX

E

B

E

B

E

B

E

B

2

1

2

1

E

B

E

B

E

B

B

E

B

E

B

E

B

E

B

E

B

E

B

E

E

B

BE

B

E

BE

BE

B

E

B

E

B

E

B

E

B

E

B

E

B

E

B

E

B

E

B

E

B

E

B

E

E

B

E

B

SD

G

SD

G

SD

G

SD

G

SD

G

SD

G

E

B

BE

B

E

E

B

D101

D102

Q698

Q15

Q9

Q12

D3

D4

D9

D600

D604

D608

D609

D614

D104

Q10

Q11

Q51

Q241

Q242

Q281

Q282

Q283

Q284

Q602

Q605

Q606

D8

D10

D52

D229

D253

D254

D255

D295

D296

D606

D607

D617

Q13

Q14

Q50

Q603

Q614

Q615

Q616

Q617

Q618

D103

J1

J2

P1

Q699

D699

Q1

D5

Q220

Q223

Q224

Q227

Q251

Q253

Q256

Q258

Q2

D6

Q222

Q225

Q226

Q229

Q252

Q254

Q255

Q257

Q610

Q604

D1

D2

J3

Q609

D615

D624

Q3

Q4

Q5

Q6

Q7

Q8

Q611

Q612

Q613

D7

D50

D152

D203

D204

D205

D206

D251

D261

D601

D602

D603

D605

D611

D612

D613

D616

Q16

Q17

Q201

Q202

Q203

Q204

Q205

Q206

Q207

Q208

Q209

Q210

Q211

Q213

Q215

Q216

Q217

Q218

D610

CN1

CN2

S6

D260

IC1

IC2

IC7

IC8

IC10

IC11

IC12

IC5

IC6

AUDIO UNIT  X09-8760-10 (J76-0476-11)

VR5

VR6

Summary of Contents for KAC-7204

Page 1: ...OOST LEVEL dB LPF FREQUENCY Hz HPF FREQUENCY Hz INPUT SENSITIVITY V MIN MAX OFF LPF FILTER LINE IN LINE OUT HPF SP LEVEL INPUT SIGNAL SENSING TURN ON FUSE 40A P CON LEFT RIGHT BRIDGED POWER IN SPEAKER OUTPUT Accessories W01 1606 05 Screw wrench key set N99 1820 05 Connecting cord assy E30 6145 05 19cm Stereo Bridgeable Power Amplifier M type E K type Dressing Panel A21 6640 01 E K type A21 6641 01...

Page 2: ...Hz 18dB 50 200Hz 50 200Hz IC2 IC1 IC7 IC12 IC7 IC8 IC8 IC10 IC11 Q281 283 Q282 284 Q241 Q242 Q201 229 Q202 226 Q215 218 610 Q611 612 TH601 602 605 Q1 2 D5 6 Q50 D50 52 Q605 Q604 IC5 Q609 699 AUDIO UNIT X09 8760 10 Ref No Application Function Operation Condition Compatibility IC1 2 Isolation circuit IC5 DC DC converter IC6 Temperature ATT control ATT2 on by pin1 H ATT1 on by pin7 H IC7 HPF IC8 Buff...

Page 3: ...mute_Tr Q604 SW14V Power supply for DC DC_IC Q605 Pcon control ON by pcon H Q606 Over voltage detection Turn off Q605 when over voltage is detected Q609 Power supply for FAN Q610 Over current protection Q611 612 DC protection Q613 614 Latch circuit for DC protection Hold the protection operation while the DC protection is being operational Q615 616 Shock noise prevention circuit Q617 618 Shock noi...

Page 4: ...13 C15 C18 C24 R7 R8 R28 R29 R30 R155 R273 R245 R275 R616 W129 W147 W146 W119 W118 W4 W182 W W125 W123 W149 W194 W193 W186 W187 W188 W189 W190 W185 W184 W183 W180 W179 W178 W175 W148 W170 W167 W169 W168 W172 W171 W177 W176 W195 W139 W138 W135 W137 W140 W144 W150 W128 W124 W122 W117 W166 W1 W131 W143 W156 W161 W160 W159 W158 W162 W163 W134 W133 W132 W120 W11 W12 W16 W1 E B E 2 1 E B S D G S D G S D...

Page 5: ... AMP IN L AMP IN R R L PIN G LPF SENS BB H OFF L HPF L 10 9 2 1 L R R LED B BB G L NF B B B E L L W13 W136 W79 W97 W141 W142 W400 W55 W73 W59 W70 W431 C223 W63 W127 W196 R697 W69 W199 W95 W93 W330 C2 W21 C3 C611 C612 C615 C606 R202 C57 C58 C4 C5 C50 C51 C140 C203 C204 C207 C208 C225 C226 C263 C264 C604 C605 C608 C618 C619 R622 W23 R203 R204 W25 C103 C104 C109 C110 C111 C112 C115 C116 C119 C122 C12...

Page 6: ...20P C211 220P 1 5K R221 6 2K R219 6 2K R225 C213 22P C217 22P 1 3K C215 10u50 470 VR5 10P R213 22K C209 R289 100 C C2 R234 100 10 C222 C220 10 R236 100 100 R2 R235 C221 C 10 C219 100P R105 10K 0 01 GND B 1 2 B 2 GND 1 RR 2 1 RR 4 3 RL 6 5 8 7 RL 10 9 100K 10u50 2 2K R121 C620 0 01 FR 2 R217 R241 10K 150 R215 R239 150 4 7K 33 R251 4 7K 100K 10u50 2 2K R120 FL TP12 FR TP14 R128 C111 C112 10u50 R129 ...

Page 7: ...116 47K TP31 56K 9 1K C118 R118 R132 GND R115 47K 1 3 C126 0 01 TP35 R134 C122 47K VR1 50K C 7 4 5 8 9 6 R131 56K R133 47K C147 0 01 4 TP75 C128 15P R138 62K 5 R136 4 2 3 5 4 R135 430 R137 430 1 7 10K 8 5 6 C148 0 01 10K 9 7 8 R141 R143 10K 56K R600 22K C611 C615 10u50 R636 18K 10u50 C5 47u25 C612 10u50 R638 22K R72 2 2 C3 47u25 R2 R4 R74 100 C4 47u25 100 10K R602 R71 R639 C2 47u25 10K 2 2 R3 R73 ...

Page 8: ...9 240 0 1 R146 C136 R142 240 0 1 4 7u50 2 2K R144 4 3 2 8 1 150K 6 5 7 150K 6 5 7 10K R148 2 2K C138 100P R150 47K VR4 10K C C129 0 01 C127 0 01 C125 100P R423 1K R R167 47K C123 4 7u50 2 2K R159 10K R151 TP67 2 R165 2 2K 4 8 3 1 L 1K R422 R613 1 5K TP69 C603 10u50 TP72 C19 0 047 C20 0 047 1 2W 1 2W R616 3 9K TP84 TP85 TP48 21uH 21uH 2 1 W4 W5 C1 10u25 L1 L2 TP74 3 LCH 2 1 RCH RCH 4 5 LCH P CON FU...

Page 9: ... F G Y Z F2 6x13 M4x8 F3x10 F3x6 F3x8 F3x16 F3x10 M6 AU M4 AU N09 6365 05 N09 6726 05 N80 3010 43 N89 3006 43 N89 3008 48 N89 3016 48 N09 6447 05 N07 0003 08 N09 4214 08 Gx2 Yx2 Zx5 C C C E E 3 E E E E E E C 723 Ax8 Ax7 Ex4 Ex2 Ex2 F 715 718 719 16 E E 702 F F 715 719 16 E Ex2 Ex2 F EXPLODED VIEW Parts with the exploded numbers larger than 700 are not supplied ...

Page 10: ...103 104 CD04BJ1H100M ELECTRO 10UF 50WV C105 106 CC73GCH1H150J CHIP C 15PF J C107 108 CK73GB1H104K CHIP C 0 10UF K C109 112 CD04BJ1H100M ELECTRO 10UF 50WV AUDIO UNIT X09 8760 10 KAC 7204 C113 114 CC73GCH1H150J CHIP C 15PF J C115 116 CD04BJ1H100M ELECTRO 10UF 50WV C117 118 CK73FB1H224K CHIP C 0 22UF K C119 CD04BJ1H100M ELECTRO 10UF 50WV C120 CK73GB1H103K CHIP C 0 010UF K C121 CK73GB1H104K CHIP C 0 1...

Page 11: ...2E104J CHIP R 100K J 1 4W R123 126 RN73GE1J103D CHIP R 10K D 1 16W R127 129 RK73EB2E104J CHIP R 100K J 1 4W R130 RK73GB2A822J CHIP R 8 2K J 1 10W R131 RK73GB2A563J CHIP R 56K J 1 10W R132 RK73GB2A912J CHIP R 9 1K J 1 10W R133 134 RK73GB2A473J CHIP R 47K J 1 10W R135 RK73GB2A431J CHIP R 430 J 1 10W R136 RK73GB2A103J CHIP R 10K J 1 10W R137 RK73GB2A431J CHIP R 430 J 1 10W R138 RK73GB2A623J CHIP R 62...

Page 12: ...73GB2A302J CHIP R 3 0K J 1 10W R647 RK73GB2A224J CHIP R 220K J 1 10W R648 RK73GB2A472J CHIP R 4 7K J 1 10W R649 RK73GB2A272J CHIP R 2 7K J 1 10W R650 RK73GB2A104J CHIP R 100K J 1 10W R651 RK73GB2A472J CHIP R 4 7K J 1 10W R652 653 RK73GB2A432J CHIP R 4 3K J 1 10W R656 RK73GB2A392J CHIP R 3 9K J 1 10W R658 RK73GB2A473J CHIP R 47K J 1 10W R659 RK73GB2A562J CHIP R 5 6K J 1 10W R660 RK73GB2A473J CHIP R...

Page 13: ...SS133 DIODE D617 B30 1770 05 LED BLUE D624 1SS133 DIODE D699 1SS133 DIODE IC1 2 BA4560RF ANALOGUE IC IC5 TL494IDR ANALOGUE IC IC6 8 BA4560RF ANALOGUE IC IC10 12 BA4560RF ANALOGUE IC Q1 2SC4883ANF TRANSISTOR Q2 2SA1859ANF TRANSISTOR Q3 8 STP60NF06FP FET Q9 2SC4097 TRANSISTOR Q10 11 2SA1577 TRANSISTOR Q12 2SC4097 TRANSISTOR Q13 14 DTA114EUA DIGITAL TRANSISTOR Q15 2SC4081 TRANSISTOR Q16 2SC1845 A F E...

Page 14: ...D 350 59 238 mm 13 3 4 2 5 16 9 3 8 inch Weight 3 2 kg 7 0 lbs KENWOOD follows a policy of continuous advancements in development For this reason specifications may be changed without notice KAC 7204 M type Audio Section Max Power Output 1000 W 500 W 2 Rated Power Output B 14 4 V Normal 4 Ω 20 Hz 20 kHz 0 08 THD 170 W 2 Normal 2 Ω 1 kHz 0 8 THD 250 W 2 Bridged 4 Ω 1 kHz 0 8 THD 500 W 1 Frequency R...

Page 15: ... H OFF L HPF 4 5V SW14V 15V L 10 9 2 1 L R R SP R SP L TH GND LED B SP L BB G L NF B B B B B E L L W13 W331 W332 W428 W151 W154 W427 W136 W181 W79 W152 W155 W157 W402 W426 W430 W97 W141 W142 W5 W400 W55 L3 W73 W404 W59 W70 W431 C223 W63 W403 W127 W196 W192 R697 W164 W145 W191 W405 W401 W69 W406 W407 W408 W409 W413 W410 W411 W412 W414 W415 W416 W417 W418 W419 W420 W421 W422 W423 W424 W199 W15 W27 W...

Page 16: ... 2K TP50 R633 6 2K C617 0 01 R632 12K TP49 R635 10K R631 12K TP44 C610 0 01 100P R105 10K 0 01 GND B 1 2 B 2 GND 1 RR 2 1 RR 4 3 RL 6 5 8 7 RL 10 9 100K 10u50 2 2K R121 C620 0 01 FR 2 R217 R241 10K 150 R215 R239 150 4 7K 33 R251 4 7K 100K 10u50 2 2K R120 FL TP12 FR TP14 R128 C111 C112 10u50 R129 100K 4 8 TP11 FL TP13 10u50 C110 100K R127 10 C109 R122 TP18 1000P C124 TP6 0 01 TP8 R102 1K C102 1000P...

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