Kenwood KAC-8401 User manual

© 2003-2 PRINTED IN JAPAN
B53-0041-00 (N)3379
POWER AMPLIFIER
KAC-8401
SERVICE MANUAL
Dressing panel
(A21-4270-03)
Heat sink
(F01-1728-11)
Connecting cord assy
(E30-6144-05) Accessory (W01-1606-05) Screw set (N99-1587-05)
Panel
(A64-3053-02)
Rear panel
(A84-0347-02)

KAC-8401
2
ADJUSTMENT
No. ITEM INPUT OUTPUT RECEIVER ALIGNMENT ALIGN FOR FIG.
SETTINGS SETTINGS SETTINGS POINTS
Connect an VR5 (A Lch) After Power on
[1] IDLE CURRENT - DC voltmeter between VOLUME : 0 VR6 (A Rch) 2 minutes (a)
chack land A, B VR7 (B Lch) 2.5mV
(Refer to the PC board) VR8 (B Rch)
Ach Bch
L+
L-
R+
R-
L+
L-
R+
R-
BU
GND
PCON
DC Voltmeter
2.5mV
B Lch
VR7
VR8
B Rch
VR6
A Rch VR5
A Lch
+
++
+
Fig. (a)

KAC-8401
4
ABCDE
1
2
3
4
5
6
7
PC BOARD (FOIL SIDEVIEW)
DC Voltmeter
IDLE CURRENT
: 2.5mV
DC Voltmeter DC Voltmeter
IDLE CURRENT
: 2.5mV IDLE CURRENT : 2.5mV
IC4
IC6
IC2
IC1
IC7
IC5
IC3
IC8
D101
D102
D31
Q4
D6
D29
D8
D201
D202
D21
D32 Q23
D26
D100
D34
D38
BRch
BRch
D22
Q24
D28
D200
Q7
D33
D35
D18 D19
D24
D27
D25
D43
Q20
A IN B IN OUT
Q17 Q18
A ST/MONO SP IN
B FREQA FREQ
AB/AA HPF/OFF/LPF B HPF/OFF/LPFB.B OFF/ON
SENS A SENS B
B ST/NONO
AUDIO UNIT X09-5610-10 A/2 (J74-1513-11)
Q213
Q211
S2
S1
S5 S6
Q110
Q210
Q209
S4
D17
D16
Q118
Q216
Q217
Q116 Q117
Q218
Q215
J2
WH1
Q30
ARch
ARch
S3
J1
Q12
Q11 Q
1
Q9
D14
Q107
Q13
Q15
Q34
Q103
Q101
Q36
Q212
Q214
Q25
D7
Q112
Q6
D41
D12
D42
Q108
Q35
BLch
BLch
Q33
D11
D40
D10
Q207
Q31
Q201
Q205 Q203
Q208
Q32
Q202
Q206
Q204
Q104
Q102
Q106
Q26
D39
Q114
Q28
Q29
B
E EB EB EB
E
B
B
E EB
BE
B
B
E
BB EE
EEB SDGSDG
E
EE
B
B
B
EE
E
E
EE
B
BE
EB EB
EB
EB EB
EB
E
3
BE
B
1
BE
BE
EB
EB
EB
EB
BE BE EBB
BE
B
E
BE
E
B
B
B
B B
E
E
B
E
E
B
E
B
B
B
B
BE
BE
BE
EB
BE
C39
R313
R307
R311
R309
C303
R146
R134
R144
R316
R315
W530
R310
C40
R308
R312
R314
C304
W528
W527
W541
W537 C273
W536
R143
C53
R137
W533
R238
R230
R108
R330
C101
R103
C102
R104 R329
R106
C106
W521
R125
C130
R145
W510
C154
R156
R154
R158
R160
R162
R166
R164
C41
W508
R245
R267
R246
R244
R318
W509
W511
C42
R243
W507
R256
R258
C254
R251
R268
C34 R128 R127
R259
R12
R11
R8
R260
R254
R262 W504
R266
R49
R47
W505
R9
R27
C54
R220
R218
R118 R120
C201
R203
C202
R204 C126
C226
R196
R296
W523W522
R119
R217
R219
R117
R227
R228 R294
R26
R269
W515
R44
W525
R174
R60
R59
R153
C153
R157
R155
C175
R159 R161
R77
W503
R80
R81
R78
C47
R75
C49
C48
R46
R14
R28
R15
R21
R16
C6 R23
R17
R19
R43
R34
R36
R35 R33
C271 C38
R226
R210 R10 R13
R123
C301
W512
R132
W542
W526
R299
W540
R199
W529
W532
R150
R149
C119
R250
W539
C173
R249
R135
W534
W535
R133
C117
R298
C230
R248
R198
W519
R129
R139
R141
R131
C36
R100
W531
R86
R319
W520
R235
C218
R234
R236
C120
R138
C118
R136
R237
C44
R302
W518
R232
R140 R142
R320
R304
C35
C220
R240
R239
C217
R233 R241
C43 R242
W513
C219
R107
R109
R229
C171
C105
R105
W514
R110
R124
R126
C132
R231
R303
R301
R114
R116
C114
C113
C131R113
C214
R111
R115
R112
C24
R68
R64
R272
R324
R276
R148
C50
C32
R130
R274
R152
R62
R66
C22 R54
R58
C20
R270
R168
C176
C275
R255
R257
R306
C302
R252
R305 R317
R194
C33
R263
R261
R265
R48
R264
C276
C253
R69
R70
W543
R253
R224
R214
R121
W538
R200
C56
C55
R207
R208
R331
R332
R87
C205
R205
C206
R206
R222
R122
C37
C232
R216
R212
C231
R225
C213
R209
R223
R213
R215
W517
R211
R221
R295
R195
W516
R273
R271
R275
C23
R65
R61
W506
R63
R67
C21
R176
R322
R172
R52
R170
R151
R167
C19
R57
R53
R56
C18
R169
R20
R45 R22
W524
R18
R31
R37 R38
R32
17
814
17
814
17
814
17
814
17
814
17
814
14
58
9
16
18
C3
W229
W51
W60
W3
5
W38
W52
W109
W173
W137
W70
W202
W140
W113
W59 W43
W74
W58
W131
W155
W42
W139
W143
W76W95
W44
W55
W48
W243
W239
W179
W135
W221
W45
W224 W223
W216
W187
W213
W234
W188
W165
W72
W269
W171
W164
W180
W36
W158
W271
W272
W236
W206
W154 W57
W263
W215
W261W259 W264
W105
W265
W244
W249
W222
W238 W237
W232
W114
W64
W67
W118
W78
W79
W54
W56
W142
W88
W90
W98
W132
W102
W100
W141
W199
W37
W91
W89
W250
W65
W66
W63
W235
W39
W108
W200
W83
W86
W168
W233
W248
W246
W247
W210
W211
W161
W138
W87
W219 W228
W231
W167
W133
W260
W252
W245
W80
W230
W184
W166
W144
W147
W198
W106
W149
W150
W178
W151
W174
W152
W197
W214
W220
W162
W185
W169
W183
W159
W170
W156
W163
W160
W172
W153
W181
W50
W134
W145
W119
W201
W112
W110
W157
W126
W120
W217
W122
W218
W46
W116
W121
W148
W69
W71
W227
W93
W123
W125
W97
W136
W81
W128
W96
W127
W77
W104
W82
W75
W129
W49
W99
W73
W101
W92
W40
W68
W130
W84
W85
W124
W41
W62 W61
W266
W176
W53
W94
W103
+
C45
R281
R283
R277
R285
R279
VR3 VR2VR1
VR4
L3
R287 R289
C12
C11
W407
C209 C112
C111
C110
C109 C211
R102
C150
C250
R197
C204
C203
C200
C210
C103
C104
C216
C215
C116
C115
C100
R297
R201
R202
C13 C14
R30
C306
C305
C128
C228
R288
R290
R286
R280
C266
R278
C268
R284
C155
R282
C270
VR8
C151
R190
R188
C166
C16
C264
C161
C28
R101
R40
C26
C31 C30
C7
C29
C5
C15
C1
R42
R41
R39
VR7
C265
C263
C267
C269
W279
W278
W277
W276
C222
C123 C121
C124
C307
C308
C224
C223 C221
C122
C2
C255
C259
C251
C257
C261
C256
C260
C252
C258
C262
C27
C160
C156
C158
C152
C162
R185
R84
C170
R186
R180
R178
R184
VR6
R182
C164
C168
R181
C212
W273
C4
W274
W186
TH3
C57
W117
C9
R323

KAC-8401
5
JIHGF
1
2
3
4
5
6
7
DC Voltmeter
IDLE CURRENT
: 2.5mV
D4
Q8
Q21
Q22
D23
D25
3
Q1
D13
D3
Q2
D2
X09 B/2
Q109 Q115
Q117
D1
Q16
J3
Q14
Q12
CN2
D15
11 Q10
Q13
Q103
Q105
CN1
Q3
D39
D5
Q113
Q111
Q27
ALch
ALch
Q29
Q5
D9
B
E EB
SDGSDGSDG
12
12
56
78
9
10
11
34
EB EB
EB
EBEB
31
BE
BE
BE
B
E
B
E
BE
BE
BE
EB BE
EB
C175
R159 R161
R165 R163
R24
R7
R29
R25
R5
R4
R6
R171
C17
R55
R51
C8
C51
R79
R74
R72
R73
R71
R34
R36
R35 R33
C19
R57
R53
5
6
18
R169
R173
R50
W
524
C52
R175
R321
W501
W502
R2
R1
R3
3
1
R37 R38
R32
W35
W14
W34
W38
W6
W2
W7
W30
3
W13
W32
W16
W17
W9
W11
W5
W44
W21
W20
W25
W29
W28
W26
5
W36
W18
W33
W8
W19
W22
W4
W15
W37
W27
W23
W39
W24
W10
W12
W31
C10
C45
W403
W404
W402
W401
W405
W406
7
C309
R191
L1
L2
VR5
C191
R291
C291
R292
TH1
R177
C155
C157
C165
C161
R183
C169
R189
R187
C292
R192
C192
C25
R179
R185
C46
C167
R181
C163
C159
R328
W275
R326
R327
R325
Refer to the schematic diagram for the
values of resistors and capacitors.
X09-5610-10
IC Q Address
13B
25B
33B
44B
54B
66B
75B
84E
14F
24G
34F
43C
55F
63C
73C
84F
92E
10 2F
11 2E
12 2E
13 2F
14 2F
15 2E
16 2F
17 2D
18 2D
20 4E
21 4F
22 4F
23 4E
24 4D
25 5E
26 5C
27 6G
28 7D
29 7F
30 6E
31 4C
32 4C
33 1C
IC Q Address
34 7C
35 2C
36 7D
101 5E
102 5D
103 5F
104 5D
105 5F
106 5D
107 5E
108 5D
109 6F
110 6D
111 7G
112 7E
113 7G
114 7D
115 6G
116 6E
117 6F
118 6D
201 4C
202 5D
203 4D
204 5D
205 4C
206 4D
207 4C
208 4C
209 2C
210 6C
211 1C
212 7C
213 2D
214 7C
215 2C
216 6C
217 2C
218 6B

KAC-8401
6
ABCDE
1
2
3
4
5
6
7
0V0V
0V
0V
-15.8V
15.8V
0V
0V
15.8V
0V
0V
0V
0V
0V
0V
-15.8V
0V
15.8V
15.8V
-15.8V
15.8V
0V
0V
0V
0V 15.8V
0V
0V
0V
0V
-15.8V
0V
0V
-15.8V
-15.8V
0V
0V
0V
0V
(X09-5610-10) (A/2)
6
C213 15P
R225 10K
C231 15P
C232 15P
10K
R226
C203
10u16
10K10K
10u16
C204
1200P
C201
R203
1200P
C202
R204
15P
C206
9
10 11 8
10K
R208
10K
R210
10K
R224
13
12
C214 15P
220
R87
R200 1K
C200 1000P
10K
R205
10K
R332
1K
R206
R331
1K
10K
R207
R216
10K
R212
82K
R211
C271
4700P
10K
R215
82K
R223 10K
10
u
C
2
1
0
C
R304 4.3K
R232
10K 10K
4.3K
R302
4
13
12 14 10K
R309R310
C38
0.01
14 10u16
C216
22K
R228
C43 0.01
4.3K
R306
C302
100P
24
3
22K
R227
R307
24K
R308
0.22
C304
24K
C303
0.22
58
R244
3K
0.01
10K
R230 10
98
R234
R236
1
C40
300
0.047
R240
C220
611
57
0.33
C218 2
31
R24216K
R317
R311R312
C306
100K
R318
2.2u50
100K
3.6K
1.1K
R314
3.6K
C305
2.2u50
300
0.01
C39
7
R313
1.1K
R316
4.3K R315
4.3K
R237
2.2K VR2
R243
R241
16K
10K
R125
15P
C131
C132 15P
R126 10K
C106
R122
21
43
65
109
78
15P
C205
6
547R209
10K
82K
R213
R214
3
2
82K
C209 10u16
R220 51K
R217 51K
2.2K
R221 2.2K
R222 2.2K
R219 51K
R218 51K
R118 51K
470P
0.1
C54
C56
470P
R297
300
R197
300
C55
0.1
C53
2.2K22u16
2.2K
R295
R194 2.2K
R294
2.2K
R117 51K
R120 51K
2.2K
R121
1000P
C226
2.2K
R296
1000P
C126
2.2K
R196
C250
22u16
R119 51K
R195C150
C111 10u16 C109 10u16 C112 10u16
R114
C103
10u16
C104
10K
10u16
10K
1200P
C101
R103
1200P
C102
R104
R115 82K
10K
R105
R100
4700P
15P
9
10 11 8
R108 10K
10K
R330
1K
R106
R86
220
1K
10K
R110
R116 82K R124 10K
12
C114 15P
13
C171
10K
R112
1000P
C100
R329
1K
10K
R107
15P
C105
5
647
C113 15P
R111
10K
82K
R113
10K
R123
10K
R109 3
2
10u16
5
1
0
C
1
0
C
C37
110u16
C215
0.01
C41 0.01
100P
R303 4.3K 4.3K
R301
4.3K
C301
R305
3
24
3K
R235
R231
10K
R229 6
5
1
10K10K
7
R233
11
9
10
12
13
C217
0.33 14
8
10K
0.047
C219
R239
R140
C34 0.01
10K
R130 10K R132
7
0.047
10K
C120
611
C33 0.01
10K
R133
R139
2.2K
R137
R135
2.2K
R138
R136
10K
R134
14 C116
10u16
22K
R128
2
31
50K
VR1
22K
R127
1 10u16
C115
6
5
R129
10K
7
10K
R131
22K
R143
C35 0.01
3K
3
21
0.33
C118 16K R142
22K
C124
R146
C122
10u16
C36 0.01
22K
R144
14
0.33
C117
3K
13
16K
R141
12
10K
0.047
C119
10 4
8
9
22K
R145
10u16
C123
10u16
C121
15K
R198
100
R199
82K
1K
R101
R102
1K
4
2
8
10
8
10
4
R238
2.2K
C210 10u16
C212 10u16
C211 10u16
2
C110
10u16
R201
1K
R202
1K
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
D202 IC3(3/4)
IC5(4/4)
IC3(4/4)
(1/2)
S2
IC5(3/4) IC5(2/4)
IC5(1/4)
S5
IC1(1/4)
IC3(1/4)
D200
INPUT
SPEAKER
J2
R
(2/4)
D201
R
LINE
IN B
L
R
LINE
OUT
L
LINE
IN A
L
J1
D100
D102
IC1(4/4)
S1
(2/4)
D101
AB/A
IC4(1/4)
IC6(2/2)
IC4(2/4)
IC4(4/4)
IC4
S6
IC7(1/4)
IC7(2/4)
IC2(1/4)
IC2(2/4)
IC2(4/4)
IC2(3/4)
S3
ST/ MONO
IC1(3/4)
HPF/
LPF
OFF/
IC3
ST/MONO
(3/4)
IC6
IC1
B B.
ON/OFF
ISO
LPF
HPF
LPF
LPF
LPF
HPF
HPF
BASS BOOST
ISO
X09-5610-10(1/3)

KAC-8401
7
JIHGF
14.7V
15.8V
-15.8V -30.5V
-15.8V
0V
0V
V
-15.8V
0V
0V
15.8V
-5.0V
14.8V
3
C165
R179
R180
C166
C275
100P
10u16
C224
C222
10u16
10u16
C308
R244
11
7
1
R
24216K
R243
R241
16K
R256 8.2K
C276
100P
R246
22K
C44
0.01 0.01
C50
R320
R298
15K
C230
47P
10
R248
9
15K
11
8
10u16
C228
22K 22K 22K
22K
R245 R299
VR4
100
470
470
R250
R249
R254 43K
C254 680P
3K
R252 10u16 C252
3.3K
R70
100
R262 C256
5600P R260
820
R258
820
R253 43K
3.3K
R69
C253 680P
3K
R251 10u16 C251
5600P
C255
820
R257
820
R259
R261
100
15K
10u16
C307
10u16
C221
10u16
C223
11
14
8
C42
0.01
R319
22K
4700P
C273
R255 8.2K
220u50
C26
22u25
C16
C130 47P
R152 C152
R176
47u25
C31
33u25
C30 22K
R26
22u25
C15
R172
R170
R322
R156
R162 C156
R164
C164
VR6
R174
R166
C160
C162
R175
C32
0.01
12
13
15K
R198
414
R148
C128
10u16
R60 R59
VR3 10K
100
R199
470
470
R149
R150
4700P
C173
R151 C151
C161
C155
R158 R160
C158
R157
R159
C157
R168 R167
C175
R161
R163
R155
R165
C163
C159
VR5
R173
2.7K
R171 33 R321
R169 2.7K
2W
0.1
R287
220
R281
1K
R65
470P
C23
2.7K
2.7K
R272
1.5K
R276
R270
10P
C260
C264
10u35
430
R274
100
R27833
R324 C268
47P
1000P
C266
220
VR8
470P
C22
220
R282
220
R282
4.74.7
R284
1K
R66
2W
0.1
R288
1.5K
R62
C262
1K
R264
43K
R266
47u25
C258
R268
82
82P
470P
C24
C270
47P
100
R280
C261
47u25
C257
82
R267
R263
1K
43K
R265
82P
100
47P
C269
R279
470P
C21
4.7
1K
R68
2W
0.1
R290
R64
1.5K
R286
4.7
2W
0.1
R289
1K
R67
R285 1.5K
R63
1.5K
R275
10P
C259
C263
10u35
430
R273
R269 2.7K
2.7K
R271
220
VR7
C265
1000P
100
R277
33
R323 C267
47P
10
R40
22u25
C14
33
1/2W
R42
3.9K
R44
R61
1.5K
4.7
R283
1/2W
22u25
C13
3.9K
R43
C168R178
R41
33
R188 R190
R182
C18
R184
R56
C20
R58
R52
R54
C170
R186
C169
R189 R187
C17
R181
R55
C19
R185
R57
R183
R53
C4 1u50
R51
C7
R23 30K
30K
R22
C167
100
R177 47P
C154 680P
R154 43K
5600P
10u163K
8.2K 100P
C176
100 5600P
3.3K3.3K
820 820 820
820
10u163K
C153 680P
100
R153 43K
8.2K
100P
4.7
47u25
47P
1.5K
2.7K
2.7K 33
100
10u35
10P
43K
1K
430
1000P
220
82P
470P470P
1.5K
4.74.7
1.5K
0.10.1
1K
220220
1K
2W2W
82 82
47P
100
100
47P
43K
47u25 1K
10P
10u35
82P
470P
1000P
430
220
470P
4.7
1.5K
0.1
4.7
1K
2W
1.5K
0.1
220
1K
2W
1.5K
1/2W
+
+
+
+
+
+
+
+
+
++
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
Q109
Q110
IC5(2/4)
IC5(1/4)
IC7(3/4)
S4
Q32
Q202 Q204
D28
Q201
Q31
D29 D31
Q203
IC7(4/4)
IC4(4/4)
Q26
Q6
Q102 Q104
Q106
D21
Q25
Q107
D22
D27
Q108
Q103
Q101
Q105
Q33
D38
Q36
Q210
Q212
Q216
Q214
Q208
Q206 Q34
D34
Q205 Q207 D35
Q35
Q218
Q217
Q213
Q118
Q211
D33
Q209
D19
Q215
Q17
D18
D24
Q112
Q30
Q28
Q116
D23
D26
Q114
D25
Q113
Q117
Q29
Q27
Q111 Q115
/
/
HPF/OFF/LPF
INVERTER
MUTE
MUTE
16V AVR
-16V AVR
Q18
MUTE
MUTE
X09-5610-10 (2/3)

KAC-8401
8
ONMLK
1
2
3
4
5
6
7
14.3V
28.5V
10V
0V
0V
10V
-5.0V
0.3V
10V
12V
0V
0V
3.3V
2.4V
5.0V
0V
0.46V
3.8V
14.2V
14.2V
14.2V
5.0V
5.0V
5.0V
0V
-31.0V
14.4V
31.0V
14.3V
3.1V
(X09- ) (B/2)
IC8
KAC-8401
R71 47K
R72 47K
R73 47K
R74 47K
C25
1.5K 1.5K
R325R326
C192
C191R191
R192
1.5K 1.5K
R327R328
100u6.3
4.7K
R79
C291
C292R292
R291
10u16
C309
R77
47K
R78
C47
0.01
47K
R80
47K
R81
0.01
C48
L2
L1
47K
C51
0.01
10K
4700u35
C12
10
R39
1/2W
22K
C11
4700u35
100u6.3
C27
10K
R48
L3
C9 C57
3300P 3300P
R49
R47
47K
C29 1u50
R19 68K
47u16
C28
7
8
6
5
2200u16
1.5K
3
2
R75
0.1
C49
2.2K
22
R84
1
R36
4.7K
R38
43
R34
150
R32
32
LED
GND 2
1
0.01
C8
1
FAN
1.5K
680
R25
2200u16
C10
C45
R35
4.7K
R37
43
R33
R31
150
680
R24
10
9
11
12
C3 47u35
R29 10K
C2 47u35 C1 10u16
3.3K
R1 C52
1
R2 3.3K R3 3.3K
C4 1u50
2.2K
TH3
R17 10K
C7
2.2u50
300K
R20
R23 30K
R21
10K
C6 1000P
R16 16K
R15 680
2.2K
R18
30K
R22
TH1
680
56
R45
4
3
2
1
R14 4.7K
10K
R46 10u16 C5
30K
C46
14
13
15
R30
56
16
22K
R13
6.8K
R12
R50
33K
R11
R28 10K
R6
10u35
3.3K
R4
R7
5.1K R5
5.1K
0.04710 1/2W
0.04710 1/2W
0.04710 1/2W
0.04710 1/2W
150K
R9 R8
6.8K
1K
R27
1.8K
R10
1
3
5
2
6
4
87
9
10
11
BR-
AR+
BR+
BL-
AR-
BL+
AL-
AL+
GND
P CON
BATT
+
+
+
+
+
+
+
+ +
+
+
+
+
+
POWER
Q21
D9
D1
Q22 Q20
D32 Q23
J3
LED
OSCILLATOR
REFERENCE REGULATOR
D43
D17
D16
Q24
D12
D11
Q12
Q10
Q14Q16
D15
CN2
D13
D5
CN1WH1 FAN
Q11
Q9
Q13Q15
D14
Q5
Q2
D2
D41
D42
Q8
D8
D10
D6
Q4
Q7
Q3
Q1
D3
D4
IC1-5,7 : NJM2058M
IC6 : NJM4565M
IC8 : UPC494GS
Q1,2,7,8,20-22,24
: 2SD1819A
Q3 : 2SA1534A(R,S)
Q4,23 : 2SB1218A
Q5 : 2SC3940A(R,S)
Q6,9,10,25,26,31,32
: 2SC945(A) (Q,P)
Q11,12,101-104,
201-204: 2SA733(A) (Q,P)
Q13-16 : FKV550T
Q17 : 2SD2375
Q18 : 2SB1548(P)
Q27,30,33,36,105-108,
205-208: 2SC1845(F,E)
Q28,29,34,35
: 2SA992(F,E)
Q109,110,209,210
: 2SC4137(V,W)
Q111,112,211,212
: 2SC1627A
Q113,114,213,214
: 2SA817A
Q115,116,215,216
: 2SC4468
Q117,118,217,218
: 2SA1695
D1,9 : RM4ZLF-J1
D2 : HZM7.5N(B2)
D3,18,19 : HZM16N(B2)
D4,21,23-26,29,33-35,
38,102,202
: MA142WA
D5,10-12,14,15,39-42
: 1SS133
D6 : HZM5.1N(B2)
D7 : RD10JS(B)
D8,22,27,28,31,32,101,
201 : MA142WK
D13 : B30-1669-05
D16 : FML22S
D17 : FML22R
D43 : HZM10N(B1)
D100,200: MA3068WA
D39 D40
D7
B LINE
GND LINE
SIGNAL LINE
B LINE
DC/DC
2SA1534A
2SA733(A)
2SA817A
2SA992
B
C
E
2SA1695
E
C
B
2SB1218A
2SD1819A
2SC4137
B
EC
2SB1548
NJM4565M
MA142WA
MA142W
UPC494GS
NJM2058M
2SC1627A
2SC1845
2SC3940A
2SC945(A)
CAUTION : For continued safety, replace safety critical components only with manufacturer's
recommended parts (refer to parts list).
Indicates safety critical components. To reduce the risk of electric shock, leakage-current
or resistance measurements shall be carried out (exposed parts are acceptably insulated
from the supply circuit) before the appliance is returned to the customer.
• DC voltages are as measured with a high impedance voltmeter. Values may vary slightly
due to variations between individual instruments or/and units.
X09-5610-10 (3/3)

KAC-8401
3
EXPLODEDVIEW
3
2
1
BA
917
15
F1
J
J
A
D
Ex2
A
B
C
D
E
F
G
H
J
K
L
M
N
P
M4x8
φ3x10
M4x10
FLAT WASHER(φ4)
φ3x10(BLK)
φ2x6
φ3x6
φ3x12(BLK)
φ3x6
φ3x8(BLK)
φ3x12
φ3x8
M6x6
M4x6
: N09-4026-05
: N09-6117-05
: N09-6128-05
: N15-1040-46
: N80-3010-45
: N82-2006-46
: N83-3006-46
: N83-3012-45
: N89-3006-46
: N89-3008-45
: N09-6118-05
: N09-6135-05
: N07-0003-08
: N09-4214-08
(X09-)
(B/2)
(X09-)
(A/2)
J1
(X09-) J2
(X09-)
VR3 VR4 VR1 VR2
J3
(X09-)
21
(X09-)
22
(X09-)
J
J
S5 S3 S4 S1 S2 S6
7
2
8
11
12
714
718
5
724
720
718
719
4
703
G
HH
Gx2
F
C
C
Ex3
Lx10
Mx4
Bx3
Bx3
Ex2
Mx4
Kx3 Kx3
Kx2
Lx11
Nx2
Px9
Parts with the exploded numbers larger than 700 are not supplied.

KAC-8401
9
Indicates safety critical components.
✽New parts
Parts without Parts No. are not supplied.
Les articles non mentionnes dans le Parts No. ne sont pas fournis.
Teile ohne Parts No. werden nicht geliefert.
Ref. No. A d
dN
e
wParts No. Description Desti-
nation Ref. No. A
d
dN
e
wParts No. Description Desti-
nation
E1 :KAC-8401 (For Europe) K: KAC-8401 (For North America)
M1 : KAC-8401 (For Other Areas)
PARTS LIST
21B ✽ A21-4270-03 DRESSING PANEL
43A
✽ A64-3053-02 PANEL
52B
✽ A84-0347-02 REAR PANEL
7 1B B07-3084-02 ESCUTCHEON
81B
✽ B19-2214-13 LIGHTING BOARD
- B46-0100-50 WARRANTY CARD
-
✽ B64-2573-00 INSTRUCTI.MANUAL (ENG.FRE.SPA.) KE1
-
✽ B64-2574-00 INSTR.MANUAL (GER.DUT.ITA.POR.) E1
-
✽ B64-2575-00 INSTRUCTION MANUAL (ENG.T-CHI.) M1
9 1A E30-6144-05 CONNECTING CORD ASSY
11 1B
✽ F01-1728-11 HEAT SINK
12 2B
✽ F09-1846-05 FAN
F1 2B F52-0016-05 FUSE (BLADETYPE) 40A
-
✽ H10-4870-13 POLYSTYRENE FOAMED FIXTURE
- H25-0336-04 PROTECTION BAG (170X250X0.03)
- ✽ H25-1192-04 PROTECTION BAG (370X440)
-
✽ H54-2879-03 ITEM CARTON CASE E1
-
✽ H54-2880-03 ITEM CARTON CASE M1
-
✽ H54-2925-03 ITEM CARTON CASE K
15 1A N99-1587-05 SCREW SET
A 3A N09-4026-05 TAPPING SCREW (4X8,TP,S)
B 2A N09-6117-05 TAPTITE SCREW
C 1B N09-6128-05 DRESSED SCREW (TORX)
D 3A N15-1040-46 FLAT WASHER (4)
E 3A N80-3010-45 PAN HEAD TAPTITE SCREW
F 1B N82-2006-46
BINDING HEAD TAPTITE SCREW
G 2B N83-3006-46 PAN HEAD TAPTITE SCREW
H 1B N83-3012-45 PAN HEAD TAPTITE SCREW
J 2B N89-3006-46
BINDING HEAD TAPTITE SCREW
K 3B N89-3008-45 BINDING HEAD TAPTITE SCREW
N 2B N07-0003-08 PAN HEAD SEMS SCREW
P 2B N09-4214-08 PAN HEAD SEMS SCREW
17 1A W01-1606-05 ACCESSORY
D13 B30-1669-05 LED (BLUE)
C1 CE04DW1C100M ELECTRO 10UF 16WV
C2,3 CE04DW1V470M ELECTRO 47UF 35WV
C4 CE04DW1H010M ELECTRO 1.0UF 50WV
C5 CE04DW1C100M ELECTRO 10UF 16WV
C6 CK73GB1H102K CHIP C 1000PF K
C7 CE04HW1H2R2M NP-ELEC 2.2UF 50WV
C8 CK73GB1H103K CHIP C 0.010UF K
C9 CF92FV1H332J MF-C 3300PF J
C10 C90-2688-05 ELECTRO 2200UF 16WV
C11,12 C90-5372-05 ELECTRO 4700UF 35WV
C13-16 CE04DW1E220M ELECTRO 22UF 25WV
C17-24 CK73GB1H471K CHIP C 470PF K
C25 CE04DW0J101M ELECTRO 100UF 6.3WV
C26 CE04DW1H221M ELECTRO 220UF 50WV
KAC-8401
AUDIO UNIT (X09-5610-10)
C27 CE04DW0J101M ELECTRO 100UF 6.3WV
C28 CE04DW1C470M ELECTRO 47UF 16WV
C29 CE04DW1H010M ELECTRO 1.0UF 50WV
C30 CE04DW1E330M ELECTRO 33UF 25WV
C31 CE04DW1E470M ELECTRO 47UF 25WV
C32-44 CK73GB1H103K CHIP C 0.010UF K
C45 C90-2688-05 ELECTRO 2200UF 16WV
C46 CE04DW1V100M ELECTRO 10UF 35WV
C47,48 CK73GB1H103K CHIP C 0.010UF K
C49 CK73GB1H104K CHIP C 0.10UF K
C50,51 CK73GB1H103K CHIP C 0.010UF K
C52 CK73GB0J105K CHIP C 1.0UF K
C53,54 CK73FB1H104K CHIP C 0.10UF K
C55,56 CK73GB1H471K CHIP C 470PF K
C57 CF92FV1H332J MF-C 3300PF J
C100 CF92FV1H102J MF-C 1000PF J
C101,102 CK73GB1H122K CHIP C 1200PF K
C103,104 CE04DW1C100M ELECTRO 10UF 16WV
C105,106 CC73GCH1H150J CHIP C 15PF J
C109-112 CE04DW1C100M ELECTRO 10UF 16WV
C113,114 CC73GCH1H150J CHIP C 15PF J
C115,116 CE04DW1C100M ELECTRO 10UF 16WV
C117,118 CK73FB1C334K CHIP C 0.33UF K
C119,120 CK73GB1H473K CHIP C 0.047UF K
C121-124 CE04DW1C100M ELECTRO 10UF 16WV
C126 CK73GB1H102K CHIP C 1000PF K
C128 CE04DW1C100M ELECTRO 10UF 16WV
C130 CC73GCH1H470J CHIP C 47PF J
C131,132 CC73GCH1H150J CHIP C 15PF J
C150 CE04DW1C220M ELECTRO 22UF 16WV
C151,152 CE04DW1C100M ELECTRO 10UF 16WV
C153,154 CK73GB1H681K CHIP C 680PF K
C155,156 CF92FV1H562J MF-C 5600PF J
C157,158 CE04DW1E470M ELECTRO 47UF 25WV
C159,160 CC45FSL1H100D CERAMIC 10PF D
C161,162 CC45FSL1H820J CERAMIC 82PF J
C163,164 CE04DW1V100M ELECTRO 10UF 35WV
C165,166 CF92FV1H102J MF-C 1000PF J
C167-170 CC45FSL1H470J CERAMIC 47PF J
C171 CK73GB1H472K CHIP C 4700PF K
C173 CK73GB1H472K CHIP C 4700PF K
C175,176 CC73GCH1H101J CHIP C 100PF J
C191,192 CF92FV1H473J MF-C 0.047UF J
C200 CF92FV1H102J MF-C 1000PF J
C201,202 CK73GB1H122K CHIP C 1200PF K
C203,204 CE04DW1C100M ELECTRO 10UF 16WV
C205,206 CC73GCH1H150J CHIP C 15PF J
C209-212 CE04DW1C100M ELECTRO 10UF 16WV
C213,214 CC73GCH1H150J CHIP C 15PF J
C215,216 CE04DW1C100M ELECTRO 10UF 16WV
C217,218 CK73FB1C334K CHIP C 0.33UF K
C219,220 CK73GB1H473K CHIP C 0.047UF K
C221-224 CE04DW1C100M ELECTRO 10UF 16WV
C226 CK73GB1H102K CHIP C 1000PF K
C228 CE04DW1C100M ELECTRO 10UF 16WV

KAC-8401
10
Indicates safety critical components.
✽New parts
Parts without Parts No. are not supplied.
Les articles non mentionnes dans le Parts No. ne sont pas fournis.
Teile ohne Parts No. werden nicht geliefert.
Ref. No. A d
dN
e
wParts No. Description Desti-
nation Ref. No. A
d
dN
e
wParts No. Description Desti-
nation
E1 :KAC-8401 (For Europe) K: KAC-8401 (For North America)
M1 : KAC-8401 (For Other Areas)
PARTS LIST
C230 CC73GCH1H470J CHIP C 47PF J
C231,232 CC73GCH1H150J CHIP C 15PF J
C250 CE04DW1C220M ELECTRO 22UF 16WV
C251,252 CE04DW1C100M ELECTRO 10UF 16WV
C253,254 CK73GB1H681K CHIP C 680PF K
C255,256 CF92FV1H562J MF-C 5600PF J
C257,258 CE04DW1E470M ELECTRO 47UF 25WV
C259,260 CC45FSL1H100D CERAMIC 10PF D
C261,262 CC45FSL1H820J CERAMIC 82PF J
C263,264 CE04DW1V100M ELECTRO 10UF 35WV
C265,266 CF92FV1H102J MF-C 1000PF J
C267-270 CC45FSL1H470J CERAMIC 47PF J
C271 CK73GB1H472K CHIP C 4700PF K
C273 CK73GB1H472K CHIP C 4700PF K
C275,276 CC73GCH1H101J CHIP C 100PF J
C291,292 CF92FV1H473J MF-C 0.047UF J
C301,302 CC73GCH1H101J CHIP C 100PF J
C303,304 CK73FB1C224K CHIP C 0.22UF K
C305,306 CE04HW1H2R2M NP-ELEC 2.2UF 50WV
C307,308 CE04DW1C100M ELECTRO 10UF 16WV
C309 CE04HW1C100M NP-ELEC 10UF 16WV
CN1 E40-3247-05 PIN ASSY
CN2 E40-3246-05 PIN ASSY
J1
✽ E63-0890-05 PIN JACK
J2 E58-0919-05 RECTANGULAR RECEPTACLE
J3
✽ E70-0839-05 SCREW TERMINAL BOARD
WH1 E39-0538-05 WIRING HARNESS
21 3B
✽ F20-2245-04 INSULATING SHEET
22 2A
✽ F20-2246-04 INSULATING SHEET
L1,2 L33-1920-05 CHOKE COIL
L3
✽ L19-0744-05 TRANSFORMER FOR CONVERTER
E 2B N80-3010-45 PAN HEAD TAPTITE SCREW
L 2A N09-6118-05 TAPTITE SCREW
M2A
✽ N09-6135-05 TAPTITE SCREW (3X8 BT)
R1-4 RK73GB2A332J CHIP R 3.3K J 1/10W
R5 RK73GB2A512J CHIP R 5.1K J 1/10W
R6 RK73GB2A303J CHIP R 30K J 1/10W
R7 RK73GB2A512J CHIP R 5.1K J 1/10W
R8 RK73GB2A682J CHIP R 6.8K J 1/10W
R9 RK73GB2A154J CHIP R 150K J 1/10W
R10 RK73GB2A182J CHIP R 1.8K J 1/10W
R11 RK73GB2A333J CHIP R 33K J 1/10W
R12 RK73GB2A682J CHIP R 6.8K J 1/10W
R13 RK73GB2A223J CHIP R 22K J 1/10W
R14 RK73GB2A472J CHIP R 4.7K J 1/10W
R15 RK73GB2A681J CHIP R 680 J 1/10W
R16 RK73GB2A163J CHIP R 16K J 1/10W
R17 RK73GB2A103J CHIP R 10K J 1/10W
R18 RK73GB2A681J CHIP R 680 J 1/10W
R19 RK73GB2A683J CHIP R 68K J 1/10W
R20
✽ RK73GB2A304J CHIP R 300K J 1/10W
R21 RK73GB2A103J CHIP R 10K J 1/10W
R22,23 RK73GB2A303J CHIP R 30K J 1/10W
R24,25 RK73FB2B681J CHIP R 680 J 1/8W
R26 RK73GB2A223J CHIP R 22K J 1/10W
R27 RK73GB2A102J CHIP R 1.0K J 1/10W
R28,29 RK73GB2A103J CHIP R 10K J 1/10W
R30 RD14BB2C560J RD 56 J 1/6W
R31,32 RK73GB2A152J CHIP R 1.5K J 1/10W
R33,34
✽ RK73GB2A430J CHIP R 43 J 1/10W
R35,36 RK73GB2A151J CHIP R 150 J 1/10W
R37,38 RK73GB2A472J CHIP R 4.7K J 1/10W
R39,40 RD14DB2H100J SMALL-RD 10 J 1/2W
R41,42 RD14DB2H330J SMALL-RD 33 J 1/2W
R43,44
✽ RK73EB2E392J CHIP R 3.9K J 1/4W
R45 RK73GB2A560J CHIP R 56 J 1/10W
R46 RK73GB2A103J CHIP R 10K J 1/10W
R47 RK73GB2A473J CHIP R 47K J 1/10W
R48 RK73GB2A103J CHIP R 10K J 1/10W
R49 RK73GB2A223J CHIP R 22K J 1/10W
R50 RK73GB2A103J CHIP R 10K J 1/10W
R51-54 RK73GB2A152J CHIP R 1.5K J 1/10W
R55-58 RK73GB2A102J CHIP R 1.0K J 1/10W
R59,60 RK73GB2A332J CHIP R 3.3K J 1/10W
R61-64 RK73GB2A152J CHIP R 1.5K J 1/10W
R65-68 RK73GB2A102J CHIP R 1.0K J 1/10W
R69,70 RK73GB2A332J CHIP R 3.3K J 1/10W
R71-74 RK73GB2A473J CHIP R 47K J 1/10W
R75 RK73GB2A222J CHIP R 2.2K J 1/10W
R77,78 RK73GB2A473J CHIP R 47K J 1/10W
R79 RK73GB2A472J CHIP R 4.7K J 1/10W
R80,81 RK73GB2A473J CHIP R 47K J 1/10W
R84 RD14NB2E220J RD 22 J 1/4W
R86,87 RK73GB2A221J CHIP R 220 J 1/10W
R100 RK73EB2E102J CHIP R 1.0K J 1/4W
R101,102 RD14BB2C102J RD 1.0K J 1/6W
R103-108 RK73GB2A103J CHIP R 10K J 1/10W
R109-112 RN73GH1J103D CHIP R 10K D 1/16W
R113-116 RK73GB2A823J CHIP R 82K J 1/10W
R117-120
✽ RK73EB2E513J CHIP R 51K J 1/4W
R121,122 RK73EB2E222J CHIP R 2.2K J 1/4W
R123-126 RN73GH1J103D CHIP R 10K D 1/16W
R127,128 RK73GB2A223J CHIP R 22K J 1/10W
R129-134 RK73GB2A103J CHIP R 10K J 1/10W
R135,136 RK73GB2A302J CHIP R 3.0K J 1/10W
R137,138 RK73GB2A222J CHIP R 2.2K J 1/10W
R139,140 RK73GB2A103J CHIP R 10K J 1/10W
R141,142 RK73GB2A163J CHIP R 16K J 1/10W
R143-146 RK73GB2A223J CHIP R 22K J 1/10W
R148 RK73GB2A153J CHIP R 15K J 1/10W
R149,150 RK73GB2A471J CHIP R 470 J 1/10W
R151,152 RK73GB2A302J CHIP R 3.0K J 1/10W
R153,154 RK73GB2A433J CHIP R 43K J 1/10W
R155,156 RK73GB2A822J CHIP R 8.2K J 1/10W
R157-160 RK73GB2A821J CHIP R 820 J 1/10W
R161,162 RK73GB2A101J CHIP R 100 J 1/10W
R163,164 RK73GB2A102J CHIP R 1.0K J 1/10W
AUDIO UNIT (X09-5610-10)