Kenwood KAC-8104D - Amplifier User manual

This product uses Lead Free solder.
This product complies with the RoHS directive for the European market.
SERVICE MANUAL
© 2007-11 PRINTED IN JAPAN
B53-0602-00 (N)519
KAC-8104D
CLASS D MONO POWER AMPLIFIER
Accessories
(W01-1606-05)
Screw & wrench key set
(N99-1820-05)
Connecting cord assy
(E30-6145-05)
19cm
BASS BOOST
LEVEL[dB]
LPF
FREQUENCY[Hz]
INPUT
SENSITIVITY[V]
[MIN] [MAX]
OFF 15Hz
ISF
LINE IN LINE OUT
25Hz
SP LEVEL INPUT
SIGNAL SENSING
TURN-ON
FUSE[40A] P.CON
POWER IN SPEAKER OUTPUT
M type
E,K type
Dressing Panel
(A21-6631-02): (E,K type)
(A21-6632-02): (M type)
Fuse (40A)
(F52-0016-05)

2
KAC-8104D
BLOCK DIAGRAM
QERF
)zH002
∼
05(
LEVEL
TFIS
PMA-D
FFO/NO
EVIRD LANIF
TEF-SOM RETLIFCLPMOC DAED EMIT
GNIMMUS
PMA
ELGNAIRT
EVAW
SP
OUTPUT
BATT.
GND
P- CON
LAMREHT
TED
DAOLREVO
TED
TESFFO-CD
TED
KAC - 8104D
300W / 4Ω
500W / 2Ω
ETUM TTA
15V
RVA
REWOP
FFO/NO
BBH+
RVA
RETLIFCL
PMA-OSI
SP INPUT
LINE IN
L
R
(0.2∼5V)
+
L
-L
-R
+R
LEVEL
Bd81
∼
0
FN
CD/CD
NOC
POWER
INDI.
I.S.F
SEL.
ssaB
tsooB
SENS.
VOL
F.P.L
S.F.I
zH51
zH52
zH04=QERF
L.P.F
SEL.
LINE OUT
L
R
LANGIS
ROTCETED
ILLUMI
INDI.
NOC-P
YTIROIRP
IC11
IC14
IC31 IC12,13
IC32
Q401,402,404,417 Q405-409,
414,415
IC14 IC18
IC15
Q603
Q151
Q410-413
Q400
IC61,62,64 Q608-611
Q25,26,28,42 Q416
IC1
Q3
Q1,2
Q51,52
IC32
LEVEL DIAGRAM
50
40
30
20
10
0
ISOLATION FILTER D class AMP
INPUT
LEVEL
VOL
SP
OUT

3
KAC-8104D
COMPONENTS DESCRIPTION
●AUDIO UNIT (X09-8730-10)
Ref. No. Application / Function Operation / Condition / Compatibility
IC1 DC/DC converter IC Generates drive signal for switching component
IC11 Isolation amplifier Isolates noises caused by potential differences in GND
IC12,13 NAND Generates and shapes the inverted waveform and to create dead time
in D-class section
IC14 INFRA SONIC FILTER Cuts off ultra low frequency of audio signal
IC15 BASS BOOST Bass boost (Variable level)
IC18 LOW PASS FILTER Cuts off high frequency of audio signal
IC31 (1/2) Triangular wave generation Generates reference signal for digitalizing analog signal
IC31 (2/2) Comparator Digitalizes by comparing analog signal with triangular waves
IC32 (1/2) Triangular wave generation Generates reference signal for digitalizing analog signal
IC32 (2/2) Error amplifier Compensates errors by feedback from the output
IC60 Attenuation circuit to attenuate input signal by 1.5dB Attenuates output when temperature in the set becomes too high
IC61,62,64 Resonance detecting circuit Detects short in SP output circuit, measures over current in the circuit,
and activates protection operation
IC63 Comparator Controls D/D CON and D-class On/Off with the over current detection
and Pcon control signals
Q1-3 PCON switch Turns on the circuit when ON signal is applied to the PCON circuit
Q4,5 Mute Generates mute drive signal and turns off LED
Q6 DC/DC converter ON/OFF control Turns off DC/DC converter when protection is detected
Q8-11 Gate driver Gate driver in DC/DC converter FET
Q12,13,19,20 DC/DC converter DC/DC converter switching
Q25,26,28,42 AVR ±15V AVR
Q29,30 Tracking when ±15V AVR is turned OFF Matches the trailing edge of “-15V” AVR with that of “+15V” AVR
Q37,38 DC/DC converter pulse ON/OFF control ON or OFF of DC/DC converter drive waveform
Q51,52 AUTO Pcon Sends DC voltage from SP IN to Pcon control circuit
Q151 Mute Turns off audio signal
Q400,403 D-class amplifier switch Turns on or off D-class amplifier
Q401,402
Q404-409,414
Q415,417
Pulse amplification, shaping and level shift Generates the signal that drives the D-class final FET
Q410-413 Power amplification High-current switching in D-class
Q416 HB 15V AVR Stacking AVR to obtain High+B for D-class
Q600,601 Resonance detecting circuit Detects short in SP output circuit, measures over current in the circuit,
and activates protection operation
Q602,612 Protection Turns off DC/DC converter when protection is detected
Q603 Attenuation circuit to attenuate input signal by 1.5dB Attenuates output when temperature in the set becomes too high
Q604-607 Current-voltage conversion Converts current to voltage to detect over current and sends it to the
comparator
Q608-611 Latch circuit Detects over voltage in output and retains the current
Q900 FAN drive Limit FAN power supply voltage under the rated voltage

4
KAC-8104D
PC BOARD (FOIL SIDE VIEW)
ABCDE
1
2
3
4
5
6
7
AUDIO UNIT
X09-8730-10 (J76-0470-01)
IC1
IC15
IC60
D405 D406
Q604 Q606
Q3
Q
D13
D151
D403
D404
P2
Q25
Q4
0
Q405
Q408
Q415
Q416
Q605
Q607
P1
P3
D18
CN900
D19
D1
D2
J3
Q12
Q13
Q19
Q20
Q410 Q411
Q412 Q413
D3
D900
D407
D605
Q8
Q9
D8
D14
D901
Q6
Q10
Q11
Q609
Q610
Q61
1
D5
D6
D7
D17
Q37
Q38
Q409
D16
W119
C402
C403 C404
R52
C1
C14
C3
C116
C613
C901
C902
R46 R47
C11
C19
C24
C100
R1
R45
C401
C20
C21
C195
W108
W117
W120
W140
GDS
GDS
GDSGDS
W89
W87
W92
W121
W165
W164
W163
12
W85
W136
C119
W134
C118
W160
W151
W162
W147
W149
W150
W128
W146
W153
W76
W156
W161
W157
W132
W124
W126
W135
W137
W129
W115
W118
W159 W158
W154
W152
W99
W109
W105
W101
W138
SDG SDG SDG SDG
W139
W81
W131
W112
W98
W86
W80
W69
W71
W133
W77
W74
W125
W82
W123
W91
W88
W141
W142
W144
W145
W73
W90
C121
C221
W72
W122
W94
W78
W75
W84
W83
W79
B.B
L2
C25
R425
C26
R426
L1
C17
C18
L3
C197
C198
R203
W500
VR3
EB
EB
EB
EB
EB
EB
EB EB
16
1
C610
R9
R10
R53
R422
R623
R48
C611
R49
R625
C612
R638
R5
EB
EB
R7
R900
R902
C7
C10
C12
C13
C15
C16
C40
C41
C42
C
C900
R15
R17
R21
R22
R27
R37 R38
R43 R44
R
R643
R644
C218
C4
C601
R6 R8
R11
R16
R18
R19
R20
R23
R24
R26
R29
R30
R31
R32
R33
R39
R40
R41 R42
R409
R411
R412
R414
R415
R416
R417
R418
R419
R420
R421
R423
R424
R624
R626
R627
R639
R642
TH1
R427
W334
W330
W326
R428
W331
W332
W328
W327
W325
W336
R906
R25
R28
W
3
W322
W323
W335
R618
R234
R6
3
R620
R658
R636
R
C224
C22
0
R235
R233
R231
R659
W324
W320
W317
W31
W321
W319
W31
1
4
5
8
14
58
9
8
EB
BE
BE
BE
BE
BE
BE
BE
BEBE
BE
BE
B
TP25
TP26
TP36
TP42
TP125
TP2
TP21
TP1
TP22
TP23
TP33
TP34
TP39
TP41
TP48
TP49
TP58
TP59
TP69
TP71
TP72
TP75
TP76
TP77
TP78
TP88
TP89
T
P
T
TP613
TP201
TP55
TP56
TP53
TP87
TP90
TP91
TP92
TP93
TP94
TP95
TP96
TP97
TP98
TP67
TP68
TP70
TP73
TP74
TP81
TP82
TP84
TP85
TP86
TP134
TP133
TP132
TP131
TP135
TP137
TP136
TP138
TP130
TP129
TP128
TP
1
TP139
TP12

5
KAC-8104D
Refer to the schematic diagram for the values of resistors and capacitors.
JIHGF
1
2
3
4
5
6
7
IC11
IC31
IC32
IC12
IC13
IC14
IC15 IC18
C
60
IC61
IC64 IC62
IC63
Q3
Q900
D600
D9
D10
D11
D12
D151
D303
Q25
Q42
Q402
Q404
0
5
415
Q417
D51
D53
D52
Q26 Q28
J1
J2
Q406
Q414
S3
Q602 D610
D103
D107
Q30
D181
Q403
D104
D108
D400
D605
Q608
Q612
D8
D23
D25
D186
D305
Q1
Q2
Q5
Q29
Q151
Q401
Q603
Q
609
Q611
D4
D5
D6
D7
D101
D182
D183
D304
D613
Q4
Q400
Q407
Q52
Q51
D601
D604
D602
D609
D603
D606
D611
D612
Q601
Q600
D607
D608
25/15/OFF
C35
C181
R52 C36
R57
R100
R108
R112
R107
9
10
1
2
R111
C2
C3
C5
C31
C32
C155
C902
C103
C104
C105
C106
C107
C108
C151
C200
R101
R102
R109
R110
R161
R163
C51
C52
W93
W40
W52
W68
W76
W30
W18
W36
W69
W71
W17
W38
W37
W35
W34
W10
W46
W47
W13
W39
W57
W77
W74
W65
W63
W28
W33
W15
W20
W11
W12
W67
W73
W45
C625
C604
C607
C121
C622
C202
C205
C201
C221
W61
W60
W59
W31
W29
W26
W72
W70
W19
W53
W44
W58
W3
W5
W4
W27
W25
W1
W43
W9
W32
W6
W2
W49
W55
W66
W62
W56
W48
W8
W7
W14
W16
W23
W64
W54
W50
W41
W51
W21
W22
W24
IFS
SENS
LPF
VR1
VR2
BE
EB
EB
EB
EB
EB
BE
14
8
8
8
71
14
14
5
5
W903
C213
C114
C306
R64
R181
R208
R304
R308
C634
C635
R182
R401
R633
R53
C115
C305
R67
R209
R58
C612
C614
R640
R3
R5
EB
R7
R74
R900
R902
C101C102
C117
R103
R104
R114
R115
R117
C6
C40
C111
C152
C182
C183
C615
C618
R2
R4
R14
C621
R65
R120
R153
R154
R162 R309
R402
R405
R410
R634
R643
4
4
C214
8
C4
W309
C630
C631
C109
C110
C112
C113
C154
C156
C632
C210
C303
C304
C215
C217
C620
C633
C601
R
6R8
R11
R12
R13
R61
R66
R73
R105
R106
R113
R116
R119
R121
R122
R123
R151
R152
R155
R156
R157
R158
R159
R160
R183
R184
R301
R302
R303
R305
R306
R307
R400
R403
R404
R406
R407
R408
R409
R411
R413
R440
R441
R442
R629
R630
R632
R639
R641
R642
R653
C603
C617
C608
C53
R54
R55
C184
R59
R51
R56
W314
W337
W301
C207
W300
C636
C208
W307
R602
R605
R645
R207
R213
R234
R615
R621
R635
R655
R650
R611
R221
R219 R206
R637
R652
R610
R647
R603
R646
R649
R651
R619
R654
R614
R616
R609
R613
C209
C212
C600
C602
C623
C609
C616
C216
C211
C624
R204
R216
R636
R205
R214
R606
R217
R230
R222
R600
R604
R612
R631
R648
R617
R607
R226
C224
C220
C619
R656 R657
R628
R608
R218
R601
R622
3
5
R233
R231
R211
6
59
R225
R223
R220
R224
W306
W302
W310
W303
W304
W308
W311
W317
W312
W315
W316
W305
W319
W31
14
58
14
58
14
58
14
58
14
58
14
58
14
58
14
58
1
8
17
814
BE
EB EB
EB
EB
BE
BE
BE
BE BE
BE
E
BE
BE
BE
BE
BE
BE
BE
BE
BE
BE
BE
BE
BE
BE
BE
-15V
TP29
TP62
TP40
TP30
TP66
TP11
TP36
TP57
TP44
TP45
TP6
TP8
TP9
TP10
TP14
TP37
TP38
TP43
TP46
TP47
TP52
TP63
TP64
TP65
TP79
TP80
TP83
TP102
TP104
TP106
TP108
TP109
TP110
TP111
TP112
TP151
TP152
TP153
TP154
TP155
TP181
TP183
TP184
TP185
TP186
TP301
TP302 TP303
TP304 TP305
TP306
TP608
TP609
TP610
TP100
TP99
TP101
TP103
TP105
TP107
TP51
TP20
TP24
TP19
TP31
TP4
TP7
TP16
TP50
TP12
TP3
TP17
TP5
TP28
TP18
TP61
TP60
TP201
TP54
TP35
TP200
TP32
TP13
TP15
TP55
TP56
53
TP27
TP113
TP114
TP115
TP121
TP120
TP122
TP116
TP117
TP118
TP119
TP140
TP124
TP126
TP127
X09-8730-10
Ref. No. Address Ref. No. Address
IC1 6B Q51 6H
IC11 5G Q52 6H
IC12 4G Q151 5F
IC13 4G Q400 3F
IC14 6G Q401 2F
IC15 6F Q402 3F
IC18 6F Q403 2F
IC31 5G Q404 2F
IC32 5G Q405 3E
IC60 5E Q406 3G
IC61 4G Q407 2F
IC62 3G Q408 2E
IC63 4G Q409 2E
IC64 3G Q410 2C
Q1 4F Q411 2D
Q2 4F Q412 2D
Q3 4E Q413 2E
Q4 4F Q414 2G
Q5 4F Q415 2E
Q6 5B Q416 4E
Q8 5B Q417 2F
Q9 5B Q600 3G
Q10 5B Q601 3G
Q11 5B Q602 3F
Q12 3B Q603 5F
Q13 4B Q604 2B
Q19 4B Q605 2B
Q20 5B Q606 2B
Q25 2F Q607 2B
Q26 2F Q608 5F
Q28 2F Q609 4E
Q29 2H Q610 4E
Q30 2H Q611 4F
Q37 5B Q612 4F
Q38 5B Q900 3F
Q42 2G

6
KAC-8104D
X09-8730-10 (1/3)
ABCDE
1
2
3
4
5
6
7
-15.0V
-B=-65V
15.0V
15.0V
15.0V
15.0V
-15.0V
-15.0V
15.0V
15.0V
-15.0V
0V
5V
0V
0V
5V
5V
0V
5V
0V
0V
5V
5.0V
5V
0V
0V
5V
+B=65V(MAX BU16V=73V)
-15.0V
-4V
4V
4V
-4V
-15V
6V
-4.5V
4.5V
4V
-4V
6V
-15V
0V
0V 0V
0V
IC31
(X09-8730-10)
D52 D53
Q52
D51
Q51
D305 D304
Q25
Q29
Q30
Q151
Q28
Q26
Q42
D18
D19
D101
D103D104
D108 D107
Q12 Q
1
Q20 Q
D606
Q603
LEVEL
INPUT
SPEAKER
J2
R
L
LINE IN
LINE OUT
RL
J1 ISO. AMP
(1/2)
IC11 IC11
(2/2)
IC14
(2/2)
(1/2)
IC60
IC60
(2/2)
ATT 1.4dB
AUTO P-CON
D181
D186
IC12
(1/4) (2/4)
IC12 (3/4)
IC12
(2/4)
IC13
(4/4)
IC12
IC13
(3/4)
D182
D183
D23D25 D151
(2/2)
IC32
(1/2)
IC32
D303
MUTE
ATT
DC/DC
HMAX33.5mm
3:14
14
C635
0.01
9
7
14
2
134
512
10 8
613
3900u16
3900u16
1
8
9
10 8
5
411 6
10u50
2
3
R658
R620
C51
BODY-GND
RCA-GND
10u50
680
12K C625
10u50
C121
10u50
C52
820
R59
100K
TP120
TP121
R55
10K
R56
4.7K
15
67
8
4
R115
10K
TP104
TP30
TP40
TP44
TP45
TP46
TP43
TP108
TP109
TP110
TP112
TP305
TP306
TP154
TP155
TP181
TP185
TP186
TP184
TP183
TP52
TP53
7
9
5
1
3
6
2
4
8
10
10u50
C103
27K
R105
1000P
C101
1000P
C102
10u50
C104
1K
R102
33P
C109
10K
R117
10K
R120
10K
R119
0.01
C21
0
0.0
1
C213
1u50
C201
1u50
C202
10u50
C200
5
68
4
7
47K
R204
30K
R205
10u50
C106
10u50
C108
10u50
C107
10u50
C105
10K
R637
0.01
C601
4.7K
R646
3
21
8
6
5
4
7
0.01
C304
10K
R302
10K
R308
1.1K
R182100K
R209
47u50
C181
56P
C182
47P
C183
47u50
C35
47u50
C31
820
R64
4.7K
R65
30K
R52
R48 47K
1500u100
C25
1/2W1000P
C21
1000P
C20R46 22
47u50
C36
47u50
C32
10
R58
10
R61
R49 47K
1500u100
C26
1/2W
R47 22
L3
C18
C17
6800P
C19
1/2W
R45 10
4.7K
R151
10K
R652
15K
R653
10K
R152
33K
R154
0.1
C152
R153 6.8K
68K
R160
3300P
C155
12K
R161
12K
R163
10K
R159
1000P
C156
5
67
C154 47P
1K
R155
15K
R114
1K
R113
33P
C113
100P
C111
47P
C110
33K
R116
0.01
C114
3.9K
R211
0.01
C117
1K
R101
27K
R106
10K
R103
10K
R104
2.2K
R108
2.2K
R107
47K
R636
30K
R618
4
3
21
8
54 V-
V+ 8
7
6
1
2
3
R309
+15V
15V
10K
R3076.8K
R303
6.2K
R306
470
R156
R158 680K
10K
R162
R301 10K
330P
C303
150K
R208
10K
R184
10K
R183
SW5V
SW5V
TP80 10K
R66
15K
R67
30K
R57
W
47K
R110
47K
R112
47K
R111
47K
R109
R181
680
+15V
+15V
+65V
10
R53
1K
R157
3.9K
R305
SW5V
0.01
C53
10K
R54
2.2K
R51
TP106
TP57
TP102 TP111
0.01
C115
5.6K
R100
R123 10K
C112 100P
75K
R121
75K
R122
15V
15V
15V
+15V
+15V
15V
+15V
15V
65V
65V
C305 0.01 C306 0.01
TP301
TP302
TP304
TP303
R659 470K
TP55 TP56
1u50
C151 TP152 TP153
TP151
2K
R44
1
2K
R44
2
TP113
TP107
TP105
TP115
TP114
TP103
TP101
TP100
TP99
TP11
TP26
TP25
TP29
TP79
TP83
TP135 TP132 TP131 TP134 TP133 TP138 TP136 TP137
4
1
R304 6.2K
+
+
+
+
+
+
+
+
+
+
+
+
+
+ +
+
+
+
+
+
+
+
+

7
KAC-8104D
X09-8730-10 (2/3)
JIHGF
15.0V -15.0V
V
-15.0V
15.0V
-15.
82.0V
65.0V
82V (MAX97V)
2.5V
5V
0V 0V
5V
0V
5V
15.0V
3.5V
15.0V
1.0V
1.5V
15.0V
1
0V
3.3V
14V
0V
14.3V
3.8V
0.2V
0V
1.3V
14.2V
14.2V
1.3V
5V
0V
5.0V
15.0V
0V 0V
3.1-0.8V
0V
5.0-0.3V
0V
0V
0V
5.0V
0V
5.0V
0V
5.0V
5.0V
5.0V
IC62
IC63
IC1
D305 D304
BASS.BOOST
Q607
Q9
Q11
Q10
Q8
Q610
Q
Q608
Q4
Q604
Q606
Q605
Q611
Q37
Q38
Q408
Q416
Q5
Q407
D17
Q601
Q600
Q409
Q404
Q400
Q403
Q401
Q406
Q602
Q6
1
2 Q13
2
0 Q19
D610
D3
Q414
Q415
Q402
Q405
Q417
Q612
Q410 Q412
Q411 Q413
4
2
)
I.S.F
OFF/15Hz/25Hz18dB
S3
INPUT SENS
L.P.F
50-200Hz 24dB GAIN=0
(1/2)
IC14
IC18(1/2)
(2/2)
IC18 IC15
(2/2)
IC15
(1/2)
0-+18dB F=40H
z
D400
D604
D601
D611
D613
D612
(2/2)
IC61
(4/4)
IC13
(1/4)
IC13
D600
D407
D403
D404
D405
D406
D-SWITCH DC-P
R
D13
D9
D11
D12
POWER
IND. RED
D303
D10
IC64
(1/2)
D608D607
CO
OVER CURRENT
PROTECTION
D-AMP ON/OFF
LOW: OFF
DC/DC
CONT.
MUTE
TP130
14
10
3
900u16
3
900u16
R32
R33
10
10
R30
10
R31
TP129
R428 R427
82 82
R404
2.7K
C207
R403
2.7K
C184
6800P
TP122
0.15
2.2u50
C205
TP13
TP14 TP15
TP32
TP116
R25
11K
360
R28
R426
0.02
5W
C195
1500P
TP125
TP124
5W
TP123
TP117
VR3 10K
3300P 3300P 100K
C619C621 R607
TP35 TP54
R226
2.2K
TP60
TP33
TP1
TP2
T
P305
TP69
TP77
TP78
TP89
TP75
L2
TP201
TP200
VR1 10K
VR2
50K
TP37
TP39
TP41
TH1
TP49
TP52
0.01
C210
0.01
C213
8
4
7
30K
R205
24K
R214
0.01
C214
0.01
C215
15K
R219
2
31
3
21
4
6
5
87
6
57
4
3
2
81
240
R231
4.7u50
C221
2.2K
R233
C217
1.8K
R405
1.8K
R406
470
R409
51
R411
100
R420
100
R414
750
R410
150
R412
180
R417
47K
R415
510K
R624
1000P
C611
3.3K
R627
1000P
C600
15K
R602
4.7K
R603
0.022
C100
0.022
C116
C198 10
10K
R642
2.2K
R643
22K
R641
0.01
C615
C602 0.68
R604 220K
C603 0.01
5
6
78
1
R
1.3K
R612
10u50
C604
1000P
C610
3.3K
R626
1K
R632
330K
R634
10K
R630
0.047
C620
R633 10K
10K
R635
5
6
7
8V+
4
3
2
1
V-
8V+
7
6
5
V-
51
R400
51
R413
10
R423
10
R424
47K
R416
910
R408
680
R407
680
R440
C401 0.047
56K
R422
47u50
C404
47u50
C403
5.6K
R421
47u50
C402
C18
C17
18
R41
1.5K
R38
1
2
3
4
5
6
7
8
IN1+
IN1-
FBACK
DTC
CT
RT
GND
C1
16
15
14
13
12
11
10
9
IN2+
IN2-
REF
OUTCTRL
VCC
C2
E2
E1
2.2u50
C11
47u50
C24
6.8K
R19
680K
R18
150K
R23
R15 27K
C10 0.1
0.1
C12
0.1
C13
10K
R24
33K
R11
75K
R12
C4
100
R13
C5
10K
R14
001
C6
2.2K
R73
0.01
C15
47K
R216
10K
R207
430
R217
0.033
C216
10K
R234
6.2K
R306
+82V
+65V
10K
R645
1K
R608
20K
R609
10K
R605
12K
R610
0.01
C630
C197 10
1.5K
R37
82K
R16
10K
R20
6.8K
R22
1000P
C16
20K
R21
4
W500
3
2
1
100
R26
1K
R17
1.5K
R74
SW5V SW5V
+65V
+65V
+65V +65V
+82V
+82V
+14.4V
+14.4V +14.4V
+1+14.3V
+14.3V +14.3V
+14.3V
+14.3V
3
.
9K
0.02
R425
1000P
C618
10K
R29
+65V +65V
+65V
R617 100K
28
3
22K
R619
10K
R621
C616
0.033
C608
10.01
C609
0.033
0.01
C632
SW5V
6.8K
R213
1K
R218
0.068
C209
3.3K
R220R206 10K
2.2K
R222
15K
R221
0.022
C211
15K
R223
12K
R224
0.068
C212
15K
R225
0.15
C208
R235 2.2K
C224 100P
+15V
15V
+15V
15V
+15V
15V
15V
+15V
15V
+15V
15V
+15V
+15V
+15V
65V
65V 65V
0.1
C220
150K
R230
2K
R441
2K
R442
C7 100P
47u50
C14
TP88
TP76
4.7K
R44
4.7K
R43
18
R42
56
R40
56
R39
R401 10KR402 10K
10
R419
10
R418
4.7K
R623
2.2K
R625
1
23
11
12
13
6.8K
R629
TP6
TP8 TP38 TP9
TP10
TP16
TP5
R647 4.
7
TP50
TP51
TP66
TP61
TP62
TP7
2.2K
R601
TP3
TP4
T
TP12
TP20 TP24
TP27
TP31
TP
2W
4.7
R203
TP126
TP608
TP609
TP74 TP70 TP73 TP68 TP82 TP85 TP84 TP81 TP86 TP67
T
P
TP
4
10K
R655
20K
R654
+14.3V +14.3V
+14.3V
TP135
TP134
TP138 TP136 TP137
36K
R600
C631 0.01
R27 10K
TP48
TP72
TP71
TP58
TP59
0.01
C634
+
+
+
+
+ +
+
+
+

8
KAC-8104D
X09-8730-10 (3/3)
B
C
E
2SA992-A
2SC1845-A
2SA1576A
2SC4081
DTA114EUA
DTA124EUA
ONMLK
1
2
3
4
5
6
7
15.0V
-15.0V
7.5V
0
V
V
1.5V
1.5V
-15.0V
-15.0V
1.5V
14.4V
SW14.3V
0V
0V
0V
14.0V
15.0V
0V
IC63
KAC-8104D
D14
D16
CN900
D900
D901
Q900
S
S.BOOST
Q610 Q609
Q1
Q2
Q608
Q4
Q3
Q5
P3
1
5
2
)
8dB F=40Hz
D605
D4
2
)
6
1
(1/2)
IC61
D602
D603
DC-PROTCT
J3
D7
D6
D5
D8
D2
D1
P1
P2
(2/2)
IC64
D609
GND LINE
SIGNAL LINE
B LINE
B LINE
COMPARATOR
MUTE
ILL
IC1 : TL494IDR
IC11,14,15,18,32,60,61,
64 : BA4560RF
IC12,13 : SN74HC00D
IC31,62,63 : BA2903F
Q1,2,5,6,52,151,400,601,
603,609-611 : 2SC4081
Q3 : 2SB1241
Q4,29,30,51,401,600,608
: 2SA1576A
Q8,9 : 2SC4097
Q10,11 : 2SA1577
Q12,13,19,20 : STP60NF06FP
Q25,404 : 2SC1845-A(F,E)
Q26 : 2SC4883ANF
Q28 : 2SA1859ANF
Q37,38,403,602 : DTA114EUA
Q42,402,417 : 2SA992-A(F,E)
Q405 : 2SA1370
Q406,414 : 2SC3902
Q407,409 : 2SB1427
Q408,415 : 2SC3415S
Q410-413 : IRFB31N20DPBF
Q416,900 : 2SD1863
Q604,607 : 2SC3478AA(L,K)
Q605,606 : 2SA1376AA(L,K)
Q612 : DTA124EUA
D1,2 : 1N5406-TSC
D3 : B30-1743-05
D4 : UDZS6.8B
D5,407 : UDZS15B
D6,7,182,183,186,400,
601-604,606,609,611,
613,900 : 1SS355
D8,605,607,608 : UDZS10B
D9-13,51-53,151,303,
403-406,600 : 1SS133
D14,16 : B30-1770-05
D17,103,107 : LM1MA142WK-G
D18 : FCH10A20
D19 : FRH10A20
D23,25 : UDZS16B
D101 : UMZ6.8N
D104,108,610 : LM1MA142WA-G
D181 : UDZS5.1B
D304,305 : UDZS5.6B
D612 : UDZS6.2B
D901 : UDZS12B
FAN
1
2
TP139
C900 0.01
R900
680
10u50
C902
R902
R906
2.2K 2.2K
TP128
TP127
SP OUT
SP OUT
C636
0.01
TP140
TP18
TP19
FUSE
40A
4
81
0.01
C217
C218 0.01
22K
R641
100u10
C613
0.01
C614
C612 0.1
R638 2.2K
3.9K
R1
5
6
8
3
2
4
1
R614 20K
10K
R611
1.3K
R612
10u50
C604
10u50
C607
10K
R615
100K
R648
8
V+
7
6
5
1
V-
2
3
4
10K
R650
BATT.
P-CON
GND
33K
R11
75K
R12
0.01
C4
100
R13
33K
R7
3.9K
R3
10u50
C5
10u50
C3
10K
R14
0.01
C6
1.5K
R4
10u50
C2
0.1
C41
0.01
C42
0.01
C40
2.2K
R73
47u50
C622
20K
R613
20K
R616
12K
R610
22K
R640
82K
R63910K
R644
10u50
C1
0.022
C119
0.022
C118
10K
R5
4.7K
R6
4.7K
R8
0.01
C633
+14.4V
+14.3V
22K
R651
33K
R9
10K
R621
C616
0.033
C
609
0
.033
67
5
2.2K
R622
0.033
C623
0.022
C624
R657R656
1K 1K
1K
R628
4
R
235 2.2K
C
224 100P
+15V
15V
+15V
15V
+15V
15V
R647 4.7K
TP17
7
TP31
TP28
TP118
TP119
TP613
TP36
TP610
TP21
TP63
TP23
TP22
TP42
6.8K
R2
22K
R10
L1
TP87
TP98
TP95
TP97
TP94
TP96
TP91
TP90
TP92
TP93
TP34
TP64
TP65
TP47
10u50
C901
24K
R606
4.7K
R649
+14.3V
1
4
C617 0.01
R631 100K
+
+
+
+
+
+
+
+
+
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 measure-
ments 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 be-
tween individual instruments or/and units.

9
KAC-8104D
EXPLODED VIEW
3
2
1
BA
(X09-873)
J2
VR3
VR1
VR2
J3
21
12
F1
Ax2
Fx3
Gx2
Yx2
Zx5
Bx2
C
C
C
F
3
5
1
6
6
F
F
F
F
F
C
714
723
Ax6
Ax4
17x4
18x4
Fx3
Fx2
Fx2
D
D
715
E
719
8
10
9
16
F
F
F
702
18x4
20
A
B
C
D
E
F
G
Y
Z
φ2.6x12
M4x8
φ3x10
φ3x12
φ3x6
φ3x8
φ3x10
M6 AU
M4 AU
: N09-6312-05
: N09-6726-05
: N80-3010-43
: N83-3012-48
: N89-3006-43
: N89-3008-48
: N09-6447-05
: N07-0003-08
: N09-4214-08
Parts with the exploded numbers larger than 700 are not supplied.

PARTS LIST
Ref. No. A
d
d
N
e
wParts No. Description Desti-
nation
E1 : KAC-8104D (Europe) K: KAC-8104D (North America) M1 : KAC-8104D (Other Areas)
Ref. No. A
d
d
N
e
wParts No. Description Desti-
nation
✽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.
KAC-8104D
10
Indicates safety critical components.
1 1B
✽
A21-6631-02 DRESSING PANEL KE1
1 1B
✽
A21-6632-02 DRESSING PANEL M1
3 2B
✽
A64-4418-02 PANEL
5 2B
✽
B07-3231-03 ESCUTCHEON (DENGEN)
6 1A
✽
B07-3232-02 ESCUTCHEON (FAN)
8 2A B19-2324-03 LIGHTING BOARD (TRIANGLE)
9 2A
✽
B19-2468-03 LIGHTING BOARD
10 2A
✽
B19-2502-03 LIGHTING BOARD
-
✽
B64-3931-00 INSTRUCTION MANUAL (ENG.FRE.SPA KE1
-
✽
B64-3932-00 INSTRUCTION MANUAL (GE.DU.IT.PO E1
-
✽
B64-3933-00 INSTRUCTION MANUAL (ENG.S-CHI.) M1
12 1A E30-6145-05 CONNECTING CORD ASSY
16 3A
✽
F09-2974-05 FAN
17 2B
✽
F20-2443-04 INSULATING SHEET
18 2A F29-0112-05 INSULATING WASHER
F1 3B F52-0016-05 FUSE (BLADE TYPE) 40A
-
✽
H54-4234-03 ITEM CARTON CASE K
-
✽
H54-4235-03 ITEM CARTON CASE E1
-
✽
H54-4236-03 ITEM CARTON CASE M1
20 1A
✽
N99-1820-05 SCREW & WRENCH KEY SET
A 2B N09-6312-05
SEMS (TAPTITE SCREW) (2.6X12)
B 1B
✽
N09-6726-05 DRESSED SCREW (M4X8)
C 3B N80-3010-43 PAN HEAD TAPTITE SCREW
D 3A N83-3012-48 PAN HEAD TAPTITE SCREW
E 2A N89-3006-43
BINDING HEAD TAPTITE SCREW
F 2A N89-3008-48 BINDING HEAD TAPTITE SCREW
Y 2B N07-0003-08 TERMINAL SCREW (M6 AU)
Z 2B N09-4214-08 TERMINAL SCREW (M4 AU)
21 1A W01-1606-05 ACCESSORIES
D3 B30-1743-05 LED (RED LED)
D14 B30-1770-05 LED (BLUE)
D16 B30-1770-05 LED (BLUE)
C1 CD04AU1H100M NP-ELEC 10UF 50WV
C2,3 CD04BJ1H100M ELECTRO 10UF 50WV
C4 CK73GB1H103K CHIP C 0.010UF K
C5 CD04BJ1H100M ELECTRO 10UF 50WV
C6 CK73GB1H103K CHIP C 0.010UF K
C7 CC73GCH1H101J CHIP C 100PF J
C10 CK73GB1H104K CHIP C 0.10UF K
C11 CD04AU1H2R2M NP-ELEC 2.2UF 50WV
C12,13 CK73GB1H104K CHIP C 0.10UF K
C14 CD04BJ1H470M ELECTRO 47UF 50WV
C15 CK73GB1H103K CHIP C 0.010UF K
C16 CK73GB1H102K CHIP C 1000PF K
C17,18 CD04BC1C392M ELECTRO 3900UF 16WV
C19 CQ93FMG1H682J MYLAR 6800PF J
C20,21 C91-2293-05 MP-F C 1000PF 200WV
C24 CD04BJ1H470M ELECTRO 47UF 50WV
C25,26 C90-5688-05 ELECTRO 1500UF 100WV
C31,32 CD04BJ1H470M ELECTRO 47UF 50WV
C35,36 CD04BJ1H470M ELECTRO 47UF 50WV
C40 CK73GB1H103K CHIP C 0.010UF K
C41 CK73GB1H104K CHIP C 0.10UF K
C42 CK73GB1H103K CHIP C 0.010UF K
C51,52 CD04BJ1H100M ELECTRO 10UF 50WV
C53 CK73GB1H103K CHIP C 0.010UF K
C100 CK45FF1H223Z CERAMIC 0.022UF Z
C101,102 CK73GB1H102K CHIP C 1000PF K
C103-108 CD04BJ1H100M ELECTRO 10UF 50WV
C109 CC73GCH1H330J CHIP C 33PF J
C110 CC73GCH1H470J CHIP C 47PF J
C111,112 CC73GCH1H101J CHIP C 100PF J
C113 CC73GCH1H330J CHIP C 33PF J
C114,115 CK73GB1H103K CHIP C 0.010UF K
C116 CK45FF1H223Z CERAMIC 0.022UF Z
C117 CK73GB1H103K CHIP C 0.010UF K
C118,119 CK45FF1H223Z CERAMIC 0.022UF Z
C121 CD04BJ1H100M ELECTRO 10UF 50WV
C151 CD04BJ1H010M ELECTRO 1.0UF 50WV
C152 CK73GB1H104K CHIP C 0.10UF K
C154 CC73GCH1H470J CHIP C 47PF J
C155 CQ93FMG1H332J MYLAR 3300PF J
C156 CK73GB1H102K CHIP C 1000PF K
C181 CD04BJ1H470M ELECTRO 47UF 50WV
C182 CC73GCH1H560J CHIP C 56PF J
C183 CC73GCH1H470J CHIP C 47PF J
C184 CK73GB1H682K CHIP C 6800PF K
C195 C91-2295-05 MP-F C 1500PF K
C197,198
✽
C91-2304-05 MP-F C 10UF J
C200 CD04BJ1H100M ELECTRO 10UF 50WV
C201,202 CD04BJ1H010M ELECTRO 1.0UF 50WV
C205 CD04BJ1H2R2M ELECTRO 2.2UF 50WV
C207,208 CK73GB1E154K CHIP C 0.15UF K
C209 CK73GB1H683K CHIP C 0.068UF K
C210 CK73GB1H103K CHIP C 0.010UF K
C211 CK73GB1H223K CHIP C 0.022UF K
C212 CK73GB1H683K CHIP C 0.068UF K
C213-215 CK73GB1H103K CHIP C 0.010UF K
C216 CK73GB1H333K CHIP C 0.033UF K
C217,218 CK73GB1H103K CHIP C 0.010UF K
C220 CK73GB1H104K CHIP C 0.10UF K
C221 CD04BJ1H4R7M ELECTRO 4.7UF 50WV
C224 CC73GCH1H101J CHIP C 100PF J
C303 CC73GCH1H331J CHIP C 330PF J
C304-306 CK73GB1H103K CHIP C 0.010UF K
C401 C91-2292-05 MP-F C 0.047UF 200WV
C402-404 CD04BJ1H470M ELECTRO 47UF 50WV
C600 CK73GB1H102K CHIP C 1000PF K
C601 CK73GB1H103K CHIP C 0.010UF K
C602 CK73FB1C684K CHIP C 0.68UF K
C603 CK73GB1H103K CHIP C 0.010UF K
C604 CD04BJ1H100M ELECTRO 10UF 50WV
C607 CD04BJ1H100M ELECTRO 10UF 50WV
C608 CK73GB1H103K CHIP C 0.010UF K
KAC-8104D
AUDIO UNIT (X09-8730-10)