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Kenwood KAC-M1804, Service Manual

The Kenwood KAC-M1804 is a compact and powerful 4-channel car amplifier designed to elevate your driving experience. With its advanced features and exceptional performance, this amplifier ensures crystal clear sound and dynamic bass. For a comprehensive guide on how to set up and optimize your KAC-M1804, download the free Service Manual from manualshive.com.

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AUDIO UNIT X09-9220-10 (J76-0911-02)

藍色

黄色

5

1

1

1

1

2

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4

1

J76-0911-02

X09-9220-10

1

1

1

1

1

L201

W

K

C26

8

D227

D226

D225

D224

C216

TP87

IC12

TP81

D233

IC11

IC10

Q233

L202

C236

C235

D216

D217

Q232

J1

C244

C215

C240

C242

C20

C120

C119

C1

C2

C3

C19

C4

C51

C246

C102

C245

R299

C221

C103

C151

C52

C152

C104

Q231

R234

D201

IC1

D6

D21

1

D5

D213

D212

D228

D229

D219

D8

D7

D109

D108

D107

D106

D105

D9

D10

D110

D207

D20

8

D210

D20

9

D202

D205

D204

Q214

Q215

Q222

Q22

9

Q230

Q219

Q220

Q221

Q101

Q102

Q103

Q1

Q2

Q3

Q20

9

Q203

Q204

Q208

IC2

IC3

R221

R217

R218

R216

R167

R219

R281

R222

R224

R225

R220

R1

R170

R169

R4

R2

R3

R164

R156

R155

R203

R206

R205

R289

R288

R266

R294

R293

R291

R286

R271

R265

R264

R287

R309

R308

R307

R268

R267

R310

R29

8

R306

R305

R301

R230

R283

R231

R284

R251

R249

R261

R259

R285

R248

R110

R111

R10

9

R10

7

R108

R112

R116

R117

R115

R113

R114

R70

R69

R55

R313

R56

R104

R312

R103

R101

R102

R131

R132

R130

R135

R136

R163

R129

R121

R122

R120

R118

R11

9

R123

R127

R128

R124

R24

R21

R22

R23

R27

R31

R32

R28

R29

R30

R20

R10

R11

R12

R7

R8

R9

R13

R17

R18

R19

R14

R15

R16

R36

R35

C213

C214

C21

1

C207

C18

C163

C201

C204

C203

C117

C2

1

C131

C219

C113

C134

C115

C110

C133

C114

C108

C109

C107

C106

C144

C141

C14

2

C15

C16

C14

3

C121

C122

C155

C156

C153

C154

C10

5

C13

7

C138

C17

C139

C118

C116

C14

0

C54

C53

C11

C55

C5

C6

C273

C9

C10

C7

C8

C37

C38

C33

C34

C13

C14

C39

C12

C44

C31

C41

C40

C43

C42

C61

C63

C62

C248

C249

C22

C229

C266

C267

C56

C264

C271

R168

C269

C259

C257

D112

D111

D11

D12

R68

R67

R166

R165

R215

IC

8

C157

C158

C58

C57

R66

R39

R38

R37

R40

R41

R4

2

R137

R139

R138

R141

R140

R51

R151

R142

R258

R47

R260

R262

R26

3

R48

R147

R148

R250

C64

C148

C164

C24

3

C258

C239

C241

C132

C135

C129

C130

C146

C147

C136

C145

C30

C29

C45

C35

C32

C36

C47

C48
C46

IC4

IC5

R65

R64

R63

R161

R61

TP28

TP27

TP11

TP73

TP72

TP71

TP83

TP82

TP74

TP70

TP56

TP54

TP69

TP5

7

R314

C275

C76

C75

C174

C173

C74

C73

CN1

L102

L101

L2

R160

R159

R158

R15

7

R60

R59

R58

R57

L1

C101

C170

C169

C

70

C

69

C168

C167

C166

C165

C68

C67

C66

C65

created date:2015-03-23

No.WA122

(No.WA122<Rev.002>)5/6

Summary of Contents for KAC-M1804

Page 1: ... KAC M1804 COPYRIGHT 2015 JVC KENWOOD Corporation J61 0629 05 x2 Wire band J61 0620 05 x2 Wire band PbF This product uses Lead Free solder This product complies with the RoHS directive for the European market DC cord E30 8358 05 Screw set N99 1840 05 Cord with pinplug E3A 00xx 00 x2 KAC M1804 North America K0 KAC M1804 Europe E1 ...

Page 2: ...kHz Signal to noise ratio 90 dB Input impedance 10 kΩ General Operating voltage 14 4 V 11 16 V allowable Current consumption 15 A Dimensions W H D 140 34 90 mm 5 1 2 1 5 16 3 9 16 inch Weight 0 5 kg 1 1 lbs CEA 2006 RMS Watts per channel 4 ohms 1 THD N 45 W 4 Signal to noise ratio Reference 1Watt into 4 ohms 74 dBA 152 mm 16 140 mm 5 1 2 90 mm 3 9 16 65 mm 2 9 16 34 mm 1 5 16 ...

Page 3: ...hat they have been returned to normal after reassem bling 1 2 Warning 1 This equipment has been designed and manufactured to meet international safety standards 2 It is the legal responsibility of the repairer to ensure that these safety standards are maintained 3 Repairs must be made in accordance with the relevant safety standards 4 It is essential that safety critical components are replaced by...

Page 4: ...y terminal do not short circuit these lines 2 2 Components description 2 2 1 AUDIO UNIT X09 9220 10 Part Number Part Name SPEC F53 0513 08 PATTERN FUSE 4A Meltdown point Ref No Application Function Operation Condition Compatibility D1 D2 D3 D4 D101 D102 D103 D104 Electrostatic protection diode Protects the circuit against static electricity that enters through the RCA or SP IN connection IC10 IC11...

Page 5: ...n Q211 Q212 Transistor for latched circuit Latched circuit for DC protection and power protection IC9 DC DC converter control IC D206 Diode for prevention of DC DC IC error op eration D214 D219 Diode for temperature protection control Stops DC DC converter oscillation and stops B supply when temperature protection is detected Q210 Transistor for temperature protection control Q205 Q207 FET for DC ...

Page 6: ... Fig 2 Fig 2 3 Remove the 4 screw C and remove the Panel L See Fig 3 Fig 3 4 Disconnector the wire from connector CN1 See Fig 4 5 Remove the 4 screws D and remove the Audio unit See Fig 4 Fig 4 SECTION 4 ADJUSTMENT This service manual does not describe ADJUSTMENT SECTION 5 TROUBLESHOOTING This service manual does not have troubleshooting information A BOTTOM PLATE B PANEL R C PANEL L D AUDIO UNIT ...

Page 7: ... No WA122 Rev 002 VSE Printed in Japan JVC KENWOOD Corporation CE Segment 2967 3 Ishikawa machi Hachioji shi Tokyo 192 8525 Japan ...

Page 8: ...SCHEMATIC DIAGRAMS POWER AMPLIFIER KAC M1804 No WA122 Rev 002 1 6 ...

Page 9: ... by the symbol are critical for safety Whenever replacing these parts be sure to use specified ones to secure the safety The parts not indicated in this Parts List and those which are filled with lines in the Parts No columns will not be supplied P W BOARD Ass y will not be supplied but those which are filled with the Parts No in the Parts No columns will be supplied There are cases where the actu...

Page 10: ... supported Bridge Non supported ON OFF control DC DC Converter B_R B_R B_L B_L LPF Power Amp RCA IN 0dB SP IN 26dB 9 9dB 2Ω 1kHz 45W 4Ω Protection Current Protection DC SP IN 3 9dB RCA IN 29 9dB TotalGain Output Bch Output Ach Out Speaker 3 3dB fc 55kHz 23 3dB Level IN Speaker RCA IN or Input Bch Input Ach A_R Filter LC A_L A_L A_R A_L A_R A_L Filter LC B_L B_L B_R B_R A_R Filter LC Filter LC 23 9...

Page 11: ...5 VB2 24 VS2 23 VP2 22 VN2 21 VN1 20 VP1 19 VS1 18 VB1 17 CSH1 16 COM 15 VCC 14 NC_13 13 FAULT 12 CSD 11 COMP1 10 IN 1 9 IN 1 8 VAA 7 VSS_6 6 GND 5 IN 2 4 IN 2 3 COMP2 2 CLIP 1 IR4302MTRPBF IC5 L33 3224 05 L2 L33 3224 05 L101 L33 3224 05 L102 L33 3224 05 L1 8 7 6 5 4 3 2 1 108u L33 3209 05 L202 E B C ISA1602AM1 F Q232 E B C ISA1602AM1 F Q221 E B C 2SA1577 Q208 E B C 2SAR293P Q227 E B C 2SA1577 Q20...

Page 12: ...3 R129 R121 R122 R120 R118 R119 R123 R127 R128 R124 R24 R21 R22 R23 R27 R31 R32 R28 R29 R30 R20 R10 R11 R12 R7 R8 R9 R13 R17 R18 R19 R14 R15 R16 R36 R35 C213 C214 C211 C207 C18 C163 C201 C204 C203 C117 C21 C131 C219 C113 C134 C115 C110 C133 C114 C108 C109 C107 C106 C144 C141 C142 C15 C16 C143 C121 C122 C155 C156 C153 C154 C105 C137 C138 C17 C139 C118 C116 C140 C54 C53 C11 C55 C5 C6 C273 C9 C10 C7 ...

Page 13: ...D101 TH202 Q207 Q205 IC6 R235 D214 D215 D206 D203 C255 Q212 Q210 Q211 Q227 Q226 Q213 R276 R214 R278 R227 R226 R229 R228 R279 R280 R213 R149 R275 R150 R207 R208 R209 R210 R212 R211 R272 R296 R295 R239 R238 R237 R242 R241 R240 R282 R236 R273 R245 R244 R243 R247 R246 R49 R50 R144 R143 R133 R274 R134 R126 R125 R25 R26 R33 R44 R43 R34 C210 C209 C208 C162 C161 C222 C220 C225 C226 C223 C224 C217 C218 C12...

Page 14: ...PARTS LIST POWER AMPLIFIER KAC M1804 No WA122 Rev 002 1 10 ...

Page 15: ...by the symbol are critical for safety Whenever replacing these parts be sure to use specified ones to secure the safety The parts not indicated in this Parts List and those which are filled with lines in the Parts No columns will not be supplied P W BOARD Ass y will not be supplied but those which are filled with the Parts No in the Parts No columns will be supplied There are cases where the actua...

Page 16: ...B B B A A A 502 501 354 353 352 351 214 213 212 x2 x2 x2 x2 x2 x2 701 715 711 Parts with the exploded numbers larger than 700 are not supplied EXPLODED VIEW Block No 200 created date 2015 03 23 No WA122 No WA122 Rev 002 3 10 ...

Page 17: ...ITE SCREW 12 212 A64 5574 12 PANEL 1 213 A64 5575 12 PANEL 1 214 E30 8371 05 CORD W PINPLUG 1 351 J61 0620 05 WIRE BAND 2 352 J61 0629 05 WIRE BAND 2 K0 353 E3A 0002 00 CORD W PINPLUG 2 K0 353 E3A 0095 00 CORD W PINPLUG 2 E1 354 N99 1840 05 SCREW SET 1 501 B64 5170 00 INST MANUAL ENG SPA FRE 1 K0 501 B5A 0670 00 INST MANUAL GER ITA POR EUROPE DUT 1 E1 502 B5A 0694 00 INST MANUAL ENG FRE SPA 1 E1 N...

Page 18: ...TRANSISTOR 1 Q222 2SC4154 F TRANSISTOR 1 Q226 2SCR293P TRANSISTOR 1 Q227 2SAR293P TRANSISTOR 1 Q229 2SC4154 F TRANSISTOR 1 Q230 RT1P141M T111 TRANSISTOR 1 Q231 2SC2713 F TRANSISTOR 1 Q232 ISA1602AM1 F TRANSISTOR 1 Q233 2SC4154 F TRANSISTOR 1 D1 LM1MA142WK G DIODE 1 D2 LM1MA142WK G DIODE 1 D3 LM1MA142WA G DIODE 1 D4 LM1MA142WA G DIODE 1 D5 DA2J101 DIODE 1 D6 DA2J101 DIODE 1 D7 DA2J101 DIODE 1 D8 DA...

Page 19: ...50V J 1 C42 CC73GCH1H102J C CAPACITOR 1000pF 50V J 1 C43 CC73GCH1H102J C CAPACITOR 1000pF 50V J 1 C44 CC73GCH1H102J C CAPACITOR 1000pF 50V J 1 C45 CK73FBB1H224K C CAPACITOR 0 22uF 50V K 1 C46 CK73FBB1H224K C CAPACITOR 0 22uF 50V K 1 C47 CK73FBB1H224K C CAPACITOR 0 22uF 50V K 1 C48 CK73FBB1H224K C CAPACITOR 0 22uF 50V K 1 C49 CC73GCH1H151J C CAPACITOR 150pF 50V J 1 C50 CC73GCH1H151J C CAPACITOR 150...

Page 20: ...V K 1 C161 CK73GBB1H103K C CAPACITOR 0 01uF 50V K 1 C162 CK73GBB1H103K C CAPACITOR 0 01uF 50V K 1 C163 CK73GB1H104K C CAPACITOR 0 1uF 50V K 1 C164 CK73FB1C106K C CAPACITOR 10uF 16V K 1 C165 CC73GCH1H330J C CAPACITOR 33pF 50V J 1 C166 CC73GCH1H330J C CAPACITOR 33pF 50V J 1 C167 CC73GCH1H330J C CAPACITOR 33pF 50V J 1 C168 CC73GCH1H330J C CAPACITOR 33pF 50V J 1 C169 CK73GBB1H103K C CAPACITOR 0 01uF 5...

Page 21: ...03J MG RESISTOR 10kΩ 1 10W J 1 R18 RK73GB2A103J MG RESISTOR 10kΩ 1 10W J 1 R21 RK73GB2A222J MG RESISTOR 2 2kΩ 1 10W J 1 R22 RK73GB2A222J MG RESISTOR 2 2kΩ 1 10W J 1 R23 RK73GB2A102J MG RESISTOR 1kΩ 1 10W J 1 R24 RK73GB2A102J MG RESISTOR 1kΩ 1 10W J 1 R25 RK73GB2A152J MG RESISTOR 1 5kΩ 1 10W J 1 R26 RK73GB2A911J MG RESISTOR 910Ω 1 10W J 1 R27 RK73GB2A1R0J MG RESISTOR 1Ω 1 10W J 1 R28 RK73GB2A1R0J M...

Page 22: ...1 4W J 1 R149 RK73GB2A433J MG RESISTOR 43kΩ 1 10W J 1 R150 RK73GB2A433J MG RESISTOR 43kΩ 1 10W J 1 R151 RK73FB2B100J MG RESISTOR 10Ω 1 8W J 1 R152 RK73GB2A113J MG RESISTOR 11kΩ 1 10W J 1 R153 RK73GB2A113J MG RESISTOR 11kΩ 1 10W J 1 R155 RK73GB2A912J MG RESISTOR 9 1kΩ 1 10W J 1 R156 RK73GB2A912J MG RESISTOR 9 1kΩ 1 10W J 1 R157 RK73GH2A103D MG RESISTOR 10kΩ 1 10W D 1 R158 RK73GH2A103D MG RESISTOR 1...

Page 23: ...270 RK73EB2E100J MG RESISTOR 10Ω 1 4W J 1 R271 RK73GB2A472J MG RESISTOR 4 7kΩ 1 10W J 1 R272 RK73GB2A473J MG RESISTOR 47kΩ 1 10W J 1 R273 RK73GB2A183J MG RESISTOR 18kΩ 1 10W J 1 R274 RK73GB2A474J MG RESISTOR 470kΩ 1 10W J 1 R275 RK73GB2A202J MG RESISTOR 2kΩ 1 10W J 1 R276 RK73GB2A473J MG RESISTOR 47kΩ 1 10W J 1 R278 RK73GB2A103J MG RESISTOR 10kΩ 1 10W J 1 R279 RK73GB2A103J MG RESISTOR 10kΩ 1 10W J...

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