Kenwood KAC-8103D - Amplifier User manual

© 2006-11 PRINTED IN JAPAN
B53-0473-00 (N)955
POWER AMPLIFIER
KAC-8103D
SERVICE MANUAL
E,M type
K type
Dressing Panel
(A21-6567-02): (K type)
(A21-6580-02): (E,M type)
Fuse (40A)
(F52-0016-05)
Accessories
(W01-1606-05) Screw set (N99-1794-05) Connecting cord assy (E30-6145-05)
19cm
Accessories
(W01-1607-05)
This product uses Lead Free solder.
This product complies with the
RoHS directive for the European market.
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TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299

KAC-8103D
2
BLOCK DIAGRAM
LINE IN
LINE OUT
R
L
(0.2-5V)
R
L
ISO-AMP
IC11
L
R
R
L
SP INPUT
25Hz
15Hz
IC14
I.F.S S3
I.S.F
SEL. VOL
SENS.
VR1
(50-200Hz)
FREQ
IC18
L.P.F
VR2
BASS
BOOST
0-18dB
VR3
LEVEL
FREQ=40Hz
IC15
Q151
ATT
MUTE
Q603
Q1-3
Q400,403
Q25,26,28,42
15V
NF
AVR B+HB AVR
Q416
OVERLOAD
D-AMP
ON/OFF
Q604-607
DET
IC32 (2/2)
TRIANGLE
SUMMING
WAVE
IC32 (1/2)
AMP
IC31
COMP
IC12,13
TIME
DEAD 404,417 LEVEL
SHIFT
GND
BATT.
LC FILTER
DC-OFFSET
CON
DC/DC
ON/OFF
POWER
IC1
THERMAL
IC60
DET DET
Q608-611
POWER
INDI.
P-CON
300W / 4
500W / 2
MOS-FET
Q410-413
DRIVE FINAL LC FILTER
Q401,402, Q405-409,
414,415 SP
OUTPUT
RESONANCE
DET
IC61,64 IC62,63
COMPONENTS DESCRIPTION
●AUDIO UNIT (X09-8600-10)
Ref. No. Application / Function Operation / Condition / Compatibility
IC1 DC/DC converter IC Generates drive signal for switching element.
IC11 Isolation amp. Isolates noises caused by potential differences in GND.
IC12,13 (2/4) NAND Generates and shapes the inverted waveform and to create dead time in Dclass section.
IC13 (1/4) (4/4) Pulse conversion circuit Converts pulse width from 1 mm to 10 mm.
IC14 INFRA SONIC FILTER Cuts off ultra low frequency of an audio signal.
IC15 BASS BOOST Bass boost (Variable level)
IC18 LOW PASS FILTER Cuts off high frequency of an audio signal.
IC31 Comparator Digitalizes by comparing analog signal with triangular waves.
IC31,32 (1/2) Triangular wave generation Generates reference signals for digitalizing analog signals.
IC32 (2/2) Error amplifier Compensates for errors by feedback from the output.
IC60 Attenuation circuit to attenuate Attenuates output when temperature in the set becomes too high.
input signal by 1.5dB
IC61,62,64 Comparator in resonance Detects short SP output circuit, measures overcurrent in the circuit, activates
detection circuit protection operation.
IC63 (1/2) Comparator circuit Turns off DC/DC power supply when an error is detected.
IC63 (2/2) Comparator circuit Turns off Dclass amplifier when an error is detected.
Q1~3 PCON switch Turns on the circuit when ON signal is applied to the PCON circuit.
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TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299

KAC-8103D
3
COMPONENTS DESCRIPTION
CIRCUIT DESCRIPTION
Ref. No. Application / Function Operation / Condition / Compatibility
Q4,5 Mute Generates mute drive signal and turns off LED.
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 DC/DC converter drive waveform.
Q151 Mute Turns off audio signal.
Q400,403 Dclass amplifier switch Turns on or off Dclass amplifier.
Q401,402 Pulse amplification, shaping and
Q404~409 level shift Generates signal that drives the final FET in Dclass.
Q414,415,417
Q410~413 Power amplification High-current switching in Dclass.
Q416 HB 15V AVR Stacking AVR to obtain High+B for Dclass.
Q603 Attenuation circuit to attenuate Attenuates output when temperature in the set becomes too high.
input signal by 1.5dB
Q604~607 Current-voltage conversion Converts current to voltage to detect overcurrent and sends it to the comparator.
Q608~611 Latch circuit Detects overvoltage in output and retains the current.
■Resonance detection and protection technique
• Measures against SP terminal’s shortening
Since resonance voltage is generated with an output LC filter,
during the time after shortening until a short circuit current is
generated, detect resonance voltage and turn D-POWER off.
• Circuit description
Resonance voltage caused by shortening is detected through
a high pass filter.
Filter characteristics is 2kHz cut-off and -18dB attenuation.
qAt 100Hz, voltage is attenuated up to -59dB of 10.6V and
peak voltage becomes 12mV.
wAt 200Hz, voltage is attenuated up to -44dB of 10.6V and
peak voltage becomes 6.7mV.
eSince resonance voltage frequency is 3.7kHz, voltage does
not attenuate.
Therefore, only resonance voltage can be detected.
L
C
Resonance voltage
generating point
Current Output
Short
Output
10V10V
15V
(2/2)
IC64
(1/2)
IC64
100k
100k
1k
22k
10k
100k
4.7k
15k
0.01u 0.033u 0.033u
2.2k
0.01u
to Dclass,
power off
control
Impedance and terminal contact resistance are in-
herent in the circuit.
Therefore, resonance voltage is generated at both
ends of a shorted C.
But resonance voltage occurs less when shorten-
ing at a low output voltage point.
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TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299

KAC-8103D
4
ABCDE
1
2
3
4
5
6
7
PC BOARD (FOIL SIDEVIEW)
IC15
IC60
IC1
AUDIO UNIT
X09-8600-10
(J76-0348-01)
Q3
D600
P1
D6 D7
D9
D10 D11
D12
D13
D606
Q404
Q405
Q408
Q
4
Q415
P3
D18 D19
J3
D1
D2
Q12Q13Q19
Q20
Q411
Q410 Q412 Q413
Q8
Q9
D3
D8
Q1
Q2
Q5
Q6
Q10
Q11
Q603
D4
D5
D17
Q4
Q37
Q38
Q400
Q409
W124
W94
W114
W128
W188
C402
C404
R422
R425
R439 R426 R438
C1
C14
C2
C3
C5
R46 R47
C11
C19
C20
C21
C22
C23
C24
C195 C196
C221
W122
R1
R45
W92
W91
W102
W203
W140
W144
W134
W106
W136
W137
W139
W141
W135
W138
W165
-B
+B
W163
W103
W133
W161
W159
W154
W129
W185
W186
W192
W191
W157
W170
W171
W125
W112
W156
W155
W175
W146
W147
W95
W174
W173
W120
W158
W160
W162
W90
W127
W148
W150
W152
W164
W86
W87
W105
W107
W108
W180
W123
W101
W93
W100
W176
W116 W118
W121
W119
W117
W115
W143
W145 W149
W151
W187
W113
W110
W166
W168
W169
W172
W85
W98
W89
W189
W190
W181
W196
W182
W193
W194
W195
W97
W96
W167
W99
W109
W204
W200
W199
W198
W197
W201
W202
C119
C118
C116
C100
C619
LPF
SDGSDG SDG SDG
SDGSDGSDGSDG
B.B
C25
C26
L1
C17
C18
L3
C197
C198
R203
VR2
VR3
W500
C401 C405
L2
C41
C218 C606
R618
R9
R10
R48
C217 C605
R620
R49
R3
R5
R7
R74
R405
C6
C10
C12
C13
C15
C16
C601
R2 R4
R14
R15
R17
R21
R22
R25
R37 R38
R43 R44
R214
R230
R234
R236
R402 R410
R27
R646
C4
C220
C224
R6
R8 R11
R12
R13
R16
R18
R19
R20
R23
R24
R29
R39
R40
R41 R42
R73
R231
R233
R235
R403
R406
R409
R411
R412
R414
R415
R416
R418
R419
R
R423
R424
R606
R607
R420
R636
R65
2
R637
TH1
W315
W314
W313
W312
W318
W316 R417
W321
W320
W324
W325
W323
W322
W319
R26
W317
W330
C7
W329
W331
C42
58
14
58
14
16 9
81
BE BE
BE BEBE
BE
BE
BE
BEBE
B
BE
BE
BE
E
BE
BE
EB
B
EB EB
E
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TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299

KAC-8103D
5
JIHGF
1
2
3
4
5
6
7
IC11
IC14
5
IC18
IC31
IC32
IC61
IC62
IC63 IC64
C
60
IC12
IC13
D601
D609
D405
D406
Q604 Q606
D186
D305
D307
D600
D604
D611
D10 D11
D151
D182 D183
D303
D304
D306
D400
D403
D404
D602
D603
D606
P2
Q25 Q42
Q402
Q404
Q416
Q605 Q607
D613
Q417
Q26
S3
Q406
Q414
J1
J2
Q28
Q30
D103
D107
Q601
D407
D104
D108
D605
Q602
Q608
D181
Q403
D8
D23
D25
Q29
Q151
Q401
Q600
Q609
Q610
Q611
Q603
D101 D308
D607
D608
D610
Q4
Q400
Q407
Q612
D612
2
1
C35
W27
C500
C502
C402
C403
4
04
R52
R422
C501
C503
R57
C181
C3
C5
C31
C32
C36
C153
C155
C604
C613
C622
R100
R108
R112
R107
R111
C103
C104
C105
C106
C107
C108
C151
C200
C201
C202
C205
C516
C607
R101
R102
R109
R110
W47
W88
W57
W60
W39
W69
W64
W111
W38
W45
W54
W46
W68
W40
W36
W24
W26
W33
W12
W13
W20
W11
W51
W53
W42
W55
W43
W22
+15V -15V
W37
W21
W10
W34
W32
R161
W17
W71
R163
W76
W44
W65
W31
W2
W67
W81
W80
W82
W79
W183
W184
W28
W74
W66
W56
W59
W78
W35
W83
W70
W63
W1
W62
W61
W58
W49
W41
W4
W14
W15
W7
W6
W3
W16
W19
W5
W23
W9
W75
W77
W85
W29 W8
W25
W18
W30
W48
W50
W52
W72
W73
W84
W204
W205
15V -15V
LPF SENS
IFS
VR1
VR2
R504
R64
R181
R208
R500 R502
C218
C213
C215
C114
C606
C306 C305
C632
C631
R304
R602
R605
R610
R647
R651
8
C610
R10
R53
R623
C217
C210
C214
C115 R501
C605
C630
C633
R503
0
C611
R58
R625
C612
C614
R638
R640
R74
C634
R182
R401
R405
R633
R645
C40
C111
C152
C182
C183
C209
C212
C504
C538
C600
C602
C603
C615 C617
C618
C601
R65
R120
R153
R154
R162
R204
R205
R213
R214
R216
R217
R230
R234
R302
R402 R410
R600
R603
R604
R612
R615
R619
R621
R631
R634
R635
R643
R644
R649
R646
C101
C102
C117
R103
R104 R114
R115
R117
R538
C4
C109
C110
C112 C113
C154
C156
C211
C216
C303
C304
C608
C609
C616
C620
R11
R12
R61
R66
R67
R105
R106 R113
R116
R119
R121
R122
R123
R151
R152
R155
R156
R157
R158 R159
R160
R183 R184
R209
R211
R218
R219 R220
R221 R222
R223
R224
R225
R226
R233
R
235
R301
R303
R305
R306
R307
R403
R404
R406
R407
R408
R409
R413
R421
R601
R608
R609 R611
R613
R614
R616
R617
R622
R624
R626
R627
R628
R629 R630
R632
R639
R641
R642
R648
R650
R400
6
R652
R653
R637
R207
R206
W309
W303
W300
W301
W304
W308
W306
W302
W313
R308
R309
W305
W311
W307
W310
W312
C507
W328
W327
W326
R656
R657
C623
C624
R654
R655
R440
58
14
17
814
58
14
58
14
58
14
5
4
58
14
58
14
8
1
58
14
71
814
41
58
41
58
BE
BE
BE
BE
BE BE
EB
EB
BE
BE
BE
BE
E B
BE
BE
BE
EB
EB
BBE
BE
BE
EB
EB
EB
EB
BE
EB
E
EB
BE
BE
BE
Refer to the schematic diagram for the
values of resistors and capacitors.
X09-8600-10
Ref. No. Address
IC1 6B
IC11 6H
IC12 4G
IC13 4F
IC14 6F
IC15 6E
IC18 6F
IC31 5G
IC32 5F
IC60 5E
IC61 4H
IC62 3H
IC63 4G
IC64 4G
Q1 4E
Q2 4E
Q3 4E
Q4 4E
Q5 4E
Q6 6A
Q8 5B
Q9 5B
Q10 5A
Q11 5B
Q12 4A
Q13 4A
Q19 5A
Q20 5A
Q25 2G
Q26 2G
Q28 2H
Q29 2H
Q30 2G
Q37 6B
Ref.No. Address
Q38 5B
Q42 2H
Q151 5F
Q400 2F
Q401 2F
Q402 3F
Q403 2F
Q404 2E
Q405 2E
Q406 2F
Q407 2F
Q408 2E
Q409 2E
Q410 2B
Q411 2D
Q412 2C
Q413 2D
Q414 2F
Q415 2E
Q416 4F
Q417 2F
Q600 3H
Q601 3H
Q602 3G
Q603 5F
Q604 3G
Q605 3G
Q606 3G
Q607 3G
Q608 3G
Q609 3F
Q610 3G
Q611 3G
Q612 3G
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TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299

KAC-8103D
6
ABCDE
1
2
3
4
5
6
7
X09-8600-10 (1/3)
Q25
Q29
Q30
Q151
Q28
Q26
Q42
D18
D19
D101
D103
D104
D108
D107
Q12
Q20
D606
Q603
LEVEL
INPUT
SPEAKER
J2
R
L
LINE IN
LINE OUT
RL
J1
ISO. AMP
(1/2)
IC11 IC11
(2/2)
I
C
(2
/
(1/2)
IC60
IC60
(2/2)
ATT 1.4dB
D304D305
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
MUTE
ATT
DC/DC
R115
10K
TP102
TP106
TP104
TP25
TP26
TP29
TP30
TP40
TP44
TP45
TP46
TP43
TP108
TP109
TP110
TP111
TP112
TP301
TP302
TP303
TP304
TP30
5
TP306
TP151
TP152 TP153
TP154
TP155
TP181
TP79
TP83
TP185
TP186
TP184
TP183
B1T
A1T
AS
A2T
BS
B2T
GND
TP52
TP53
TP55 TP56
TP54
TP57
AU
7
9
5
1
3
6
2
4
8
10
2
1
3
4
6
5
7
10u50
C103 27K R105
1000P
C101
1000P
C102
10u50
C104
1K
R102
0.01
C115
33P
C109
10K
R117
10K
R120
3
2110K
R119
1u50
C201 1u50 C202
10u50
C200
5
6
47K
R204
R205
10u50
C106
10u50
C108
10u50
C107
10u50
C105
10u50
C500
10u50
C501
10K
R637
0.01
C601
4.7K
R646
3
21
0.01
C606
0.01
C605
8
6
54
7
10u50
C503 10u15
C502
1
R502
0.01
C306
0.01
C304
10K
R302 10K
R308
1.1K
R182
100K
R209
47u50
C181
2
13
14
7
4
5613
12 11 14
5
4
7
6
10
98
9
10 8
56P
C182
47P
C183
47u50
C35
47u50
C31
820
R64
4.7K
R65
30K
R52
R48 47K
1500u100
C25
1/2W 1000P
C21
1000P
C20R46 22
47u50
C36
47u50
C32
10
R58
10
R61
R49 47K
1500u100
C26
1/2W1000P
C23
1000P
C22 R47 22
L3
3300u1
6
C18
3300u1
6
C17
6800P
C19
1/2W
R45 10
10u50
C516 4.7K R151
7P
C507
100
R504
10K
R652
15K
R653
10K
R152
1u50
C151
33K
R154
0.1
C152
R153 6.8K
68K
R160
3300P
C155
12K
R161
12K
R163
10K
R159
1000P
C156
5
67
C154 47P
47u50
C153
1K
R155
67
4
58
15K
R114
1K
R113
33P
C113
100P
C111
47P
C110
33K
R116
100P
C112
10K
R123
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
10
R538 7P C538
1
R500
4
3
21
8
54 V-
V+ 8
7
6
1
2
3
160
R309
0.01
C305
6.2K
R304
1
R503
36K
R620
+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
R501 1
47K
R110
47K
R112
47K
R111
47K
R109
R121 75K R122 75K
R100 5.6K
C504 7P
R181
680
+15V
+15V_1
+15V
-15V
+15V_1
+15V_2 +15V_2
+15V_2
-15V_2
-15V_2
+15V_2
-15V_2
+65V
-15V
-65V
-65V
10
R53
-15V_1
-15V_1
1K
R157
3.9K
R305
++
++
+
++
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
IC31
(X09-8600-10)
-15.0V
15.0V 15.
0
15.0V
-15.0V
1.9V
-15.0V
4V
-4V
6V
-15V -15V
6V
4.5V
-4.5V
15.0V
15.0V
-15.0V
4V
-4V
-4V
4V
0V
5V
0V 0V
5V
5V
0V
5V
0V
0V
5V
5.0V 5V
0V
0V
5V
5.0V
+B=65V(MAX BU16V=73V)
w w w . x i a o y u 1 6 3 . c o m
Q Q
3
7
6 3
1 5 1 5
0 9 9
2
8 9
4 2
9 8
T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3
Q Q
TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299

KAC-8103D
7
JIHGF
X09-8600-10 (2/3)
Q607
Q9
Q11
Q10
Q8
Q4
Q604
Q606
Q605
Q611
Q37
Q38
Q408
Q416
Q5
Q407
D17
Q601
Q600
Q409
Q404
Q400
Q403
Q401
Q406
Q602
Q6
Q12 Q13
Q20 Q19
D610
D3
Q414
Q415
Q402
Q405
Q417
Q612
Q410 Q412
Q411 Q413
IC14
(2/2)
I.S.F
OFF/15Hz/25Hz18dB
S3
INPUT SENS L.P.F
50-200Hz 24dB GAIN=0
(1/2)
IC14
(1/2)
IC18
(2/2)
IC18
IC15
(2/2)
I
(
B.
0-
D304
D308
D306D307
D305
D400
D604
D601
D611
D613
D612
(4/4)
IC13 (1/4)
IC13
D600
D407
D403
D404
D405
D406
D-SWITCH
D13
D9
D11
D12
POWER
IND. RED
D303
D10
IC64
(1/2)
D608D607
OVER CURRENT
PROTECTION
D-AMP ON/OFF
LOW: OFF
DC/DC
CONT.
MUTE
TP33
TP1
TP2
TP305
P
306
5
TP608
TP609
TP
6
TP69
TP72
TP71
TP77
TP78
TP88
TP89
5
TP75
TP76
L2
TP201
TP200
VR1 10K(A)
1 2
3
46 5 8 9 7
VR2
50K
TP13
TP12
TP3
TP7
TP5
TP4
TP14
TP9
TP6
TP10
TP16
TP8
TP37 TP38
TP39
TP41
7
10
3 1 4 29
8
56
1112
TH1
TP4
7
TP48
TP49
TP50
TP58
TP59
0.01
C210
0.01
C213
0
11u50 C202 1u50
C205
5
68
4
7
30K
R205
24K
R214
64
1 23 9 7 5 8
0.01
C214
0.01
C215
10K
R219
8.2K
R220
150K
R222
R221 10K
2
313
21
0.15
C209
9.1K
R224
100K
R226
0.15
C212
7.5K
R225
4
6
587
6
57
0.1
C220
240
R231
4.7u50
C221
2.2K
R233
3 64
1 2 9 7 8
R206 10K
1.8K
R405
10K
R402
1.8K
R406
470
R409
51
R411
100
R420
100
R414
750
R410
150
R412
180
R417
47K
R415
10
R418
10
R419
510K
R624
1000P
C611
3.3K
R625
3.3K
R627
1000P
C600
15K
R602
4.7K
R603
R600 27K 2.2K
R601
TP51
4.7 2W
R203
0.022
C100
0.022
C116
C198 10
10K
R642
2.2K
R643
0.01
C615
C602 0.68
R604 220K
C603 0.01
2W 2W
1000P
C610
6.8K
R623
3.3K
R626
13
12 11 1
23
1K
R632
330K
R634
1K
R629
10K
R630
0.047
C620
R633 10K
0.01
C631
10K
R635
5
6
7
8V+
4
3
2
1
V-
51
R400
51
R413
10
R423
10
R424
47K
R416
910
R408
680
R407
680
R440
C405 0.1 C401 0.1
56K
R422
47u50
C404
47u50
C403
5.6K
R421
47u50
C402
2W
R426 0.05
2W
3300u16
C18
3300u16
C17
33
R41
4.7K
R43
4.7K
R44
1.5K
R38
33
R42
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
47u50
C14
10K
R24
1K
R25
10K
R27
33K
R11
75K
R12
C4
100
R13
C5
10K
R14
001
C6
2.2K
R73
0.01
C15
K
6
3
3.9K
R211
10K
R213
47K
R216
10K
R207 1K
R218
430
R217
0.033
C211
7.5K
R223
0.033
C216
5
VR3 10K(C)
150K
R230
10K
R234
6.2K
R306
10K
10K
R401
4.7K
R404
4.7K
R403
+82V
+65V
10K
R645
20K
R654
1K
R608
10K
R605
0.01
C630
C197 10
3300P
C195
3300P
C196
R655 10K
56
R39
56
R40
1.5K
R37
82K
R16
10K
R20
6.8K
R22
1000P
C16
20K
R21
4
W500
3
2
1
100
R26
1.2K
R17
1.5K
R74
R438 0.05
C7 0.01
0.01
C634
SW5V SW5V
+15V_1 +15V_1 +15
V
+15V_2
+15V_2 +15V_2
-15V_2 -15V_2
+65V
+65V
+65V +65V
+82V
+82V
-65V
-65V
-65V
+14.4V
+14.4V +14.4V
+14.3V
+14.3V +14.3V
+14.3V
+14.3V
-15V_1 -15V_1 -15V_1
3.9K
R305
0.05
R425
0.05
R439
1000P
C618
10K
R29
+65V +65V
+65V
R617 100K
100K
R607
1500P
C619
28
3
C
1
0
TP20 TP2
4
0.01
C632
SW5V
+
+
+
+
+
+
+
+
+
+
+
IC62
IC1
15.0V -15.0V
15.0V -15.0V
82.0V 65.0V
HB 82V (MAX97V)
2.5
V
5V
0V
0V
5V 0V
5V
1
15V
15V
3.5V
15.0V
0.7V
0.7V
0V
3.3V
14V
0V
14.3V
3.8V
0.2V
0V
1.25V
14.2V
14.2V
5.0V
1.25V
5V
0V
5.0V
15.0V
w w w . x i a o y u 1 6 3 . c o m
Q Q
3
7
6 3
1 5 1 5
0 9 9
2
8 9
4 2
9 8
T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3
Q Q
TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299

KAC-8103D
8
ONMLK
1
2
3
4
5
6
7
X09-8600-10 (3/3)
Q610
Q609
Q1
Q2
Q608
Q4
Q3
Q611
Q5
0
1
Q600
P3
IC15
(1/2)
B.B
0-+18dB F=40Hz
D605
D4
(2/2)
IC61
(1/2)
IC61
D602
D603
DC-PROTECTION
OUTPUT
SPEAKER
J3
D7
D6
D5
D8
D2
D1
IC1 : TL494IDR
IC11 : RC4580IDR
IC12,13 : SN74HC00D
IC14,15,18,32,60,61,64 : BA4560RF
IC31,62,63 : BA2903F
Q1,2,5,6,151,400,601,
603,609-611 : 2SC4081
Q3 : 2SB1241
Q4,29,30,401,600,608 : 2SA1576A
Q8,9 : 2SC4097
Q10,11 : 2SA1577
Q12,13,19,20 : STP60NF06FP
Q25,404 : 2SC1845-A(F,E)
Q26 : 2SC4883ANF
Q28 : 2SA1859ANF
Q37,38,403,602,612 : DTA114EUA
Q42,402,417 : 2SA992-A(F,E)
Q405 : 2SA1370
Q406,414 : 2SC3902
Q407,409 : 2SB1427
Q408,415 : 2SC3415S
Q410-413 : IRFB31N20DPBF
Q416 : 2SD1863
Q604,607 : 2SC3478AA(L,K)
Q605,606 : 2SA1376AA(L,K)
D1,2 : RM4ZLF-J4NF
D3 : B30-1743-05
D4 : UDZS6.8B
D5,407 : UDZS15B
D6,7,9-13,151,182,183,186,303-307,400,
403-406,600-604,606,609,611,613
:1SS133
D8,605,607,608 : UDZS10B
D17,103,107 : LM1MA142WK-G
D18 : FCH10A20
D19 : FRH10A20
D23,25 : UDZS16B
D101 : UMZ6.8N
D104,108,610 : LM1MA142WA-G
D181,308 : UDZS5.1B
D612 : UDZS6.2B
P1
P2
IC64
(1/2)
(2/2)
IC64
D608
7
D609
GND LINE
SIGNAL LINE
B LINE
B LINE
COMPARATOR
MUTE
TP11
TP21 TP22
TP23
TP34
TP36
TP608
TP609
TP610 TP63
TP64
TP65
TP613
TP17
TP15TP13
4
6
TP18
TP19
TP42
TP47
FUSE
40A
4
3
281
0.01
C217
C218 0.01
9
10K
R642
2.2K
R643
22K
R641
100u10
C613
0.01
C614
0.01
C615
C612 0.1
R638 2.2K
3.9K
R1
5
6
783
2
4
1
R614 20K
10K
R611
1.3K
R612
10u50
C604
10u50
C607
10K
R615
0.01
C631
4 7K
R647
100K
R648
8V+
7
6
5
1
V-
2
3
4
10K
R650
BATT.
7
P-CON
GND
2
1
3
4
5
6
8
9
33K
R11
75K
0.01
C4
100
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
L1
0.01
C40
2.2K
R73
K
(C) 100P
C224
2.2K
R235
R236 47K
10K
R234
4.7K
R649
47u50
C622
20K
R654
1K
R608
20K
R613
20K
R609
10K
20K
R616
12K
R610
22K
R640
82K
R639
10K
R644
10u50
C1
0.022
C119
0.022
C118
10K
R5
4.7K
R6
4.7K
R8
18K
R10
3.3K
R2
0.01
C633
+15V_1
+15V_2
+15V_2
-15V_2
-15V_2 +15V_2
+14.4V
+14.3V
-15V_1
22K
R651
33K
R9
6
17 100K
8
22K
R619
10K
R621
C616
0.033
C608
10.01 C609
0.033
TP27
TP31
67
5
2.2K
R622
TP28
TP24
0.033
C623
0.022
C624
0.01
C617
100K
R631
R657R656
1K 1K
TP35
TP32
1K
R628
4
24K
R606
+
+
+
+
+
+
+
IC63
KAC-8103D
15.0V
-15.0V
2.5V
7.5V
15.0V
15.0V
1.5V
1.5V
-15.0V
V
-15.0V
1.5V
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.
B
C
E
2SA992-A
2SC1845-A
2SA1576A
2SC4081
DTA114EUA
w w w . x i a o y u 1 6 3 . c o m
Q Q
3
7
6 3
1 5 1 5
0 9 9
2
8 9
4 2
9 8
T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3
Q Q
TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299

KAC-8103D
9
Parts with the exploded numbers larger than 700 are not supplied.
EXPLODED VIEW
3
2
1
BA
(X09-860)
J1
J3
A
B
C
D
E
F
G
H
φ3x8
M4x8
φ2.6x13
φ3x10
φ3x8
φ3x8
φ3x10
M4x9
: N09-5524-05
: N09-6287-15
: N09-6365-05
: N80-3010-43
: N89-3008-48
: N09-6135-05
: N09-6447-05
: N09-4214-08
J2
VR1
VR2VR3
S3
G x2
Ex3
Cx6 Ex3
Ex3
18x4
725
725
725
29
13
8
27
28
10
Bx2
Ex2
Ex2
Ex3
732
704
717
735
724
8
PA1
7
F1
3
A
E
EE
D
D
D
D
E
E
E
E
F
F
A
Hx7
w w w . x i a o y u 1 6 3 . c o m
Q Q
3
7
6 3
1 5 1 5
0 9 9
2
8 9
4 2
9 8
T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3
Q Q
TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299

KAC-8103D
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-8103D (Europe) K: KAC-8103D (North America)
M1 : KAC-8103D (Other Areas)
PARTS LIST
31B ✽ A21-6567-02 DRESSING PANEL K
31B
✽ A21-6580-02 DRESSING PANEL E1M1
PA1 3B
✽ A64-4085-02 PANEL
72B
✽ B07-3195-03 ESCUTCHEON
81A
✽ B07-3197-02 ESCUTCHEON
10 2A
✽ B19-2420-03 LIGHTING BOARD
-
✽ B64-3514-00 INSTRUCTI.MANUAL (ENG.FRE.SPA.) KE1
-
✽ B64-3515-00 INSTR.MANUAL (GER.DUT.ITA.POR.) E1
-
✽ B64-3516-00 INSTRU.MANUAL (ENG.T-CHI.S-CHI) M1
13 1A E30-6145-05 CONNECTING CORD ASSY
18 2B
✽ F20-2409-04 INSULATING SHEET
F1 2B F52-0016-05 FUSE (BLADE TYPE) 40A
-
✽ H54-3880-03 ITEM CARTON CASE K
-
✽ H54-3881-03 ITEM CARTON CASE E1
-
✽ H54-3882-03 ITEM CARTON CASE M1
27 1A N99-1794-05 SCREW & WRENCH KEY SET
A2BN09-5524-05 SET SCREW (3X8)
B1BN09-6287-15 DRESSED SCREW (M4X8)
C2BN09-6365-05
SEMS (TAPTITE SCREW) (2.6X13)
D3BN80-3010-43 PAN HEAD TAPTITE SCREW
E3BN89-3008-48
BINDING HEAD TAPTITE SCREW
H2BN09-4214-08 SCREW (M4X9)
28 1A W01-1606-05 ACCESSORIES (LARGE)
29 1A W01-1607-05 ACCESSORIES (SMALL)
D3 B30-1743-05 LED (RED LED)
C1 CD04AU1H100M NP-ELEC 10UF 50WV
C2,3 CD04BJ1H100M ELECTRO 10UF 50WV
C4 CK73GB1H103K CHIP C 0.010UF K
C5 CD04BJ1H100M ELECTRO 10UF 50WV
C6,7 CK73GB1H103K CHIP C 0.010UF K
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
✽ C90-6816-05 ELECTRO 3300UF 16WV
C19 CQ93FMG1H682J MYLAR 6800PF J
C20-23 CK45FB1H102K CERAMIC 1000PF K
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
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
C151 CD04BJ1H010M ELECTRO 1.0UF 50WV
C152 CK73GB1H104K CHIP C 0.10UF K
C153 CD04BJ1H470M ELECTRO 47UF 50WV
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
C195,196 CQ93FMG1H332J MYLAR 3300PF J
C197,198 C91-2267-05 MP-F 10UF J
C200 CD04BJ1H100M ELECTRO 10UF 50WV
C201,202 CD04BJ1H010M ELECTRO 1.0UF 50WV
C205 CD04BJ1H010M ELECTRO 1.0UF 50WV
C209 CK73GB1E154K CHIP C 0.15UF K
C210 CK73GB1H103K CHIP C 0.010UF K
C211 CK73GB1H333K CHIP C 0.033UF K
C212 CK73GB1E154K CHIP C 0.15UF 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 CF92FV2A104J MF-C 0.10UF J
C402-404 CD04BJ1H470M ELECTRO 47UF 50WV
C405 CF92FV2A104J MF-C 0.10UF J
C500-503 CD04BJ1H100M ELECTRO 10UF 50WV
C504 CC73GCH1H070D CHIP C 7.0PF D
C507 CC73GCH1H070D CHIP C 7.0PF D
C516 CD04BJ1H100M ELECTRO 10UF 50WV
C538 CC73GCH1H070D CHIP C 7.0PF D
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
C605,606 CK73GB1H103K CHIP C 0.010UF K
C607 CD04BJ1H100M ELECTRO 10UF 50WV
C608 CK73GB1H103K CHIP C 0.010UF K
C609 CK73GB1H333K CHIP C 0.033UF K
C610,611 CK73GB1H102K CHIP C 1000PF K
C612 CK73GB1H104K CHIP C 0.10UF K
C613 CD04BJ1A101M ELECTRO 100UF 10WV
KAC-8103D
AUDIO UNIT (X09-8600-10)
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