Kenwood | KAC-5203 SERVICE MANUAL POWER AMPLIFIER
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Kenwood KAC-5203 is a powerful car amplifier that delivers exceptional audio quality and a wide range of features to enhance your in-car listening experience. With its 27dB of gain, this amplifier provides a significant boost to your audio signal, ensuring that your music and audio content are heard loud and clear. The built-in low-pass filter allows you to customize the sound output to match your specific preferences, with a cutoff frequency of 80Hz and a slope of 12dB per octave.
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POWER AMPLIFIER
KAC-5203
SERVICE MANUAL
Panel
(A64-4134-02)
© 2007-1 PRINTED IN JAPAN
B53-0495-00 (N) 955
Connecting cord assy
(E30-6145-05)
Screw set
(N99-1587-05)
Accessory
(W01-1607-05)
Fuse (25A)
(F52-0014-05)
Screw washer
(N09-4215-08)
Rear panel
(A84-0463-02)
This product uses Lead Free solder.
2
KAC-5203
BLOCK DIAGRAM
LINE IN
Lch
J1
IC1,2 VR1
ISOLATION
AMPLIFIER
INPUT SENSE
Q615,616
Q217,219
POWER
AMPLIFIER
IC3
LPF
80Hz 12dB/OCT
(+6dB)
LINE IN
Rch
SPEAKER
IN
J2
IC1,2 VR1
ISOLATION
AMPLIFIER
INPUT SENSE
IC3
MUTE
Q218,220
POWER
AMPLIFIER
D8,9
15V AVR
TH1
THERMAL PROTECTION
+11dB
L1
DC-DC CONVERTER
Q610-614
SHOCK NOISE MUTE
Q606-609,617-621
Q3
P. CON CIRCUIT
DC DETECT &
OVER CURRENT PROTECTION
Q602
OVER VOLTAGE PROTECTION
0dB 27dB
J3
SPEAKER OUT
Lch
SPEAKER OUT
Rch
P. CON
BATT.
KAC-5203
COMPONENTS DESCRIPTION
●
AUDIO UNIT (X09-8612-70)
Ref. No.
Application / Function
Q606~609
Q610~614
Q615,616
Q617~621
Q622,623
D1
D2,3
D4
D6,7
D8,9
D101~104
D201,202
D203,204
D601
D602
D603
IC1,2
IC3
IC4
IC5
Q3-6
Q7,8
Q201~204
Q205,206
Q207~210
Q211,212
Q213~216
Q217~220
Q601
Q602
Q603
Q604,605
D604
D605,606
D607
D609,610
D611~613
D614~617
Input Isolation AMP
Pin 1-3: LPF, Pin 5-7: Inverter
DC-DC Comparator
Attenuator Driver
FET Driver
For DC-DC Comparator
Difference AMP 1st Stage
Current Mirror
Difference AMP 2nd Stage
Temperature Compensation
Darlington 1st Stage
Final Stage
Voltage Supply
Over-voltage Protection
P.CON
Mute Driver
DC Protection
Shock Noise Mute
Mute
Over-current DET
Attenuator
BATT Reverse Connection Protection
IC4 Reverse Breakdown Voltage Protection
Mute Driver
DC-DC Rectifier
15V AVR
Static Electricity Countermeasure
Difference AMP 2nd Stage
Current Mirror
Voltage Supply
Over-voltage DET
Voltage Supply
Shock Noise Mute
Mute Driver
LED Control
DC Protection
Shock Noise Mute
Over-current DET
D650 P.CON-ON DET
Operation / Condition / Compatibility
When turning power ON/OFF, the protection functions.
When turning power ON/OFF, the protection functions.
When turning power ON/OFF, the protection functions.
When P.CON is ON, the LED lights.
When DC protection functions, the LED goes out.
3
3
4
5
6
D E
2
1
A B
KAC-5203
PC BOARD (FOIL SIDE VIEW)
C
AUDIO UNIT X09-8612-70 (J76-0349-11)
E B
R606
R607
E B
C601
D607
R615
D1
S D G
Q8
S D G
Q7
D6
W52
D7
W48
W47
W41
R21
Q217
E B
Q211
B
R219
R22
L1
C10
R22
W53
R646
B
R233
E
Q617
Q213
D614
R223
W25
W2
W2
W42
W43
W39
TH1
L2
W44
E
R213 R211
B
Q205
R215
D2
W12
C21
P1
D201
B E
C211 R217
B
C215
E
W127
R207
W126
R205
C205 R209
C219
Q201
Q203
W37
B E
C602
W160
W159
R20
R18
R16
R656
E B
W154
W155
E B
R14
R19
R17
R15
E B
R13
E B
Q6
Q3
CN1
Q608
B E
B E B E B E
C605
8
IC4
1
W40
9 16
W38
W142
R11
D4
W34
W54
W55
W56
W57
W58
W59
W49
W50
W51
W85
W71
4 1
R616
W60
W61
W62
D610
W76
IC5
5 8
R666 R664
C619 R665
Q610
W136
R612
B E
R608
R609
W137
W138
W139
Q612
Q613
W78
W79
W80
R657
R651
B E
C614
Q216
B E B E B E B E
R232
B
R214
R212
B
W29
Q204
Q202
Q208
W132
E
C220
C206 R210
Q623
R208
W128
R206
B E
W129
C212 R218
C216
B E
C
Q622
W
R659
R216
B E B
R660
R661
C214
W156
W162
E
W130
Q619
R648
R236
E
E B
Q220
W135
R24
R226
C218
E
W
7
4
F G H
Q211
B E
R219 C217
R225
C154
C151
R156
C152
R154
R153
R155
C131
R131
R223
W25
E B
Q219
R647
B
R235
E
Q618
Q215
C153
C104
W26
W27
R211
205
215
217
B
C215
E
W126
R205
R209
D203
W125
C213
W120
R636
C201
R201
C203
C207
Q201
W20
29
C208
C106 R106 R102
R110
W15
W16
W17
W115
W114
8
IC1
5
W106
W104
W113
R113
R109
R114
R119
R117
C105 R105
D102
W8
R101
4
C103
1
W11
1 4
IC2
5 8
W110
02
W13
C204
W116
Q623 Q622
W121
B E
16
B
B E
C202
R659 R639
R658
W117
W19
B E
R660
R661
R637
C214
W156
W162
W118
D612
W119
R635
R638
W135
Q616
R641
C14
W111
R118
W9
W112
R120
W6
W7
W3
D9
W10
C13
W4
W5
R310
R309
W103
R301
R302
R303
R305
C301
4 1
W107
IC3
5 8
R308
W105
C305
R307
R24
D8
R23
R662
C617
R115
R116
W1
C119
D103
D104
C130
R130
W101
D617
B
R645
C613
W23
R224
Q214
Q620
E B
R649
R306
R311
R234
W102
B E
0
R226
C218 R220
E B
Q218
I J
KAC-5203
1
2
Q204
Q205
Q206
Q207
Q208
Q209
Q210
Q211
Q212
Q213
Q214
Q215
Q216
Q4
Q5
Q6
Q7
Q8
Q201
Q202
Q203
X09-8612-70
Ref. No.
Address
IC1
IC2
3F
4G
IC3
IC4
IC5
Q3
5G
5D
6D
5C
2C
4E
4E
4E
4C
4C
5C
2C
5E
4F
5E
2F
4E
3E
5E
4E
6E
3E
6F
3G
6E
Q612
Q613
Q614
Q615
Q616
Q617
Q618
Q619
Q620
Q621
Q622
Q623
Q604
Q605
Q606
Q607
Q608
Q609
Q610
Q611
Ref. No.
Address
Q217 2E
Q218
Q219
6G
2F
Q220
Q601
Q602
Q603
6E
6C
6B
6B
6C
7C
6D
7C
6C
6D
6C
7C
5F
3E
3F
6E
7D
7D
7D
5F
6F
6D
4F
4E
3
4
5
6
Refer to the schematic diagram for the values of resistors and capacitors.
5
7
4
5
6
D
2
3
1
A
KAC-5203
AUDIO UNIT (X09-8612-70)
R131
11
C131
1000P
B
R101
1K
C103
10u50
+
L
R
J1
J2
9
7
5
3
10
L+
8
6
4
L-
R-
1 2
R+
C104
R102 10u50
1K
+
TP151 TP155
TP157
R153
39K
R155
39K
C151
10u50
+
C153
10u50
+
TP153
TP154
TP158
R156
39K
R154
39K
C154
10u50
+
C152
10u50
+
TP152 TP156
D101
TP103
R105
4.7K
TP105
3
8
IC1
(1/2)
1
2
R109
12K
TP107
C107
0.01
R111
3.9K
R113
3.9K
INPUT ISOLATION
AMP
R149
1K
C149
1000P
TP106
R106
4.7K
D102
TP104
TP108
R110
6
12K
IC1
(2/2)
7
5
4
R114
3.9K
R112
3.9K
C108
0.01
15V
3.41V
R667
10K
C
R664 150K
5
6
IC5
(2/2)
7
R663
10K
+15V
R117
3.9K
VR1 10K
INPUT
SENSE
INPUT ISOLATION
AMP
TP111
3
8
IC2
(1/2)
1
2
R119
3.9K
R123 22K
C113 47P
TP109
TP110
R120
3.9K
R118
3.9K
TP112
TP113
TP114
C114 47P
R124 22K
6
7
5
4
IC2
(2/2)
-15V
2SA817A-F
2SA992-A
2SC1627A-F
2SC1845-A
C308
10u50
+
+15V
TP301
L+R
R301
33K
C301
0.1
TP302
R303
27K
3
2
R302
33K
R305
10K
IC3
(1/2)
8
1
C304
10u50
+
LPF/OFF
S1
7
TP304
R636
3.3K
8
Q622
R660
10K
Q623
R661
10K
C309
10u50
+
(6dB UP) LPF : 80Hz 12dB/OCT
C310
10u50
+
R307
10K
PIN 1-3 : LPF,
PIN 5-7 : INVERTER
TP305
5
6
IC3
(2/2)
7
4
R308 10K
C305
47P
C307
10u50
+
R639
3.3K
Q622,623
ATTENUATOR
-15V
2SA1576A 2SC3419
2
3
8
IC5
(1/2)
1
4
ATTENUATOR
DRIVER
SIGNAL LINE
GND LINE
B LINE
B LINE
2SC4081
E
TP31 TP30 TP29
15V
R23
820
2W
28.5V
D6
-15V
R24
820
2W
-28.5V
D7
TP34 TP33 TP32
T
+15V
-15V
TP625
Q613
TP623
R628
10K
Q610-614
SHOCK NOIS
MUTE
TP620
Q611
TP618
R6
4
TP621
TP626
Q612
Q614
R629
10K
TP622
TP624
TP635
-B
+B
+15V
+B
+15V
+B
15V
-15V
C609
4.7u50
+
TP627
R637
10K
Q615
R638
Q616
10K
TP628
MUTE
Q201-204
DIFFERENCE AMP
1st STAGE
TP201
C201
10u50
+
C219
47P
Q201
Q203
1mA
TP207
C209
6P
R251
47K
TP205
R209
100
C205
4700P
Q2
D
Q207-210
DIFFERENCE AMP
2ND STAGE
R210
100
C206
4700P
TP206
D
Q20
C202
10u50
+
+15V
Q202
Q204
C220
TP202
47P
TP208
R252
47K
C210
6P
+15V
-B
+B
7
E
C
B
6
X09-8612-70 (1/2)
E C
B
F G H I J
KAC-5203
1
TP25
L2
10 : 5
TP24
Q7,8 for DC-DC
COMPARATOR
TP23
C8
2200u16
+
Q8
Q7
TP21
R17
56
R18
TP22
56
TP26
Q3-6
FET
DRIVER
Q3
TP17
TP15
TP18
Q4
Q5
TP19
TP20
Q6
TP16
TP606
TP9
5V
TP7
TP8
R1 1K
R2 10K
TP5
C3 1000P
R3 22K
TP6
C2
10u50
+
D3
DC-DC COMPARATOR
IC4
6
7
3
4
1
IN1+
2
IN1-
FBACK
DTC
5
CT
RT
GND
IN2+
16
15
IN2-
REF
OUTCTRL
14
13
12
VCC
C2
E2
11
10
8
C1 E1
9
2
610-614
HOCK NOISE
MUTE
P620
11
TP618
R623
47K
Q610
TP614
Q606
TP613
R616
2.2K
14V
Q605
1
12
TP608
R609
33K
2
TP635
TP615
Q606-609
DC PROTECTION
Q608
Q607
TP612
D607
Q604
NORMAL
: OFF
Q604,605
MUTE
DRIVER
Q609
+DC
15V
+B
Q205
1mA
TP207
C209
6P
R251
47K
Q207
D201
Q205,206
CURRENT
MIRROR
C213 3P
C215
47P
Q209
R237
10
Q211,212
TEMPERATURE
COMPENSATION
D612
TP629
-B
Q211
R225
47
P
A-MUTE
+B
R223
47
Q213-216
Q213
DARLINGTON
1st STAGE
Q617
TP631
Q618
D615
Q217-220
FINAL
STAGE
Q217
R229
4.7
R646
1K
TP215
TP213
R647
1K
R231
4.7
Q219
Q215
TP217
TP632
TP633
Q621
R650
12K
D202
-B
Q208 Q210
C216
47P
D613
TP630
R226
47
D616
Q619
Q216
Q220
R232
4.7
R648
1K
Q617-621
OVER
CURRENT
DET
TP218
TP214
C214
3P
02
TP208
R252
47K
C210
6P
Q206
Q212
R224
47
Q620
R649
1K
R230
4.7
Q218
Q214
TP216
TP27
TP28
+B
PROTECTION
IC1-3,5
IC4
14.4V
P.CON
VOLTAGE
SUPPLY
R604
30K
Q601
R605
3.6K
R601
3.6K
TP605
Q603
TP602
D601
R602
TP604
Q602
D602
3.9K
R603
3.9K
P1
OVER VOLTAGE
: BA4560RF
: TL494IDR
L1
TP3
TP1
Q3,6
Q4,5
Q7,8
: 2SC4097
: 2SA1577
: STP60NF06FP
Q201-204,605,606,612,614
: 2SA1576A(R,S)
Q205,206,618,619
: 2SA992-A(F,E)
Q207-210,610,617,620
: 2SC1845-A(F,E)
Q211,212
Q213,214
: 2SC3419(Y)-F
: 2SC1627A-F
Q215,216
Q217,218
: 2SA817A-F
: 2SC4468NF
Q219,220 : 2SA1695NF
Q601 : 2SB1241
Q602-604,607-609,611,
613,615,616,621-623
: 2SC4081
D1 : RM4ZLF-J4NF
D2-4,201-204,603,605-607,
D6
D7
610,611,614,617
: 1SS133
: FCH10A20
D8,9,602
: FRH10A20
: UDZS15B
D101,612 : LM1MA142WK-G
D102,613,615,616
: LM1MA142WA-G
D103,104,601 : UDZS6.8B
D604,609
D650
: UDZS10B
: B30-1710-05
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.
C1
10u50
TP2
J3
7
6
BATT
GND
5 P-CON
4
3
2
1
LCH+
LCH-
RCH-
RCH+
55W/4
65W/2
150W/4 BTL
KAC-5203
• DC voltages are as measured with a high impedance voltmeter. Values may vary slightly due to variations between individual instruments or/and units.
X09-8612-70 (2/2)
7
3
4
5
6
7
KAC-5203
A
DC1
9
1
A
B
C
D
E
φ
2.6x13
φ
3x10
: N09-6365-05
:
: N80-3010-43
N89-3008-48
: N09-6447-05
: N09-4215-08
8
EXPLODED VIEW
1
B
706
8
2
3
C
B
3
C
(X09)
J2
(X09)
J1
711
(X09-8612-70)
(Insulated sheet is contained
in transistor)
D x2
A x3
(X09)
J3
E x7
4
C
F1
A x7
C x3
B x3
C
C
702
C
C x2
C
C
Parts with the exploded numbers larger than 700 are not supplied.
KAC-5203
B
C
8
A
E
9
D650
C1
C2
C3
C5
C6
C7
C8
C9,10
C11,12
C13,14
C101,102
C103,104
C105,106
C107,108
C109,110
C111,112
C113,114
C115,116
C119
C130,131
C149
C151-154
C201,202
C203,204
C205,206
C207,208
C209,210
C211,212
C213,214
C215,216
-
-
-
-
-
3
4
1
1
PARTS LIST
✽
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 d
N e w
Parts No.
Description
Destination
Ref. No.
1B
✽
A21-6586-03
1B
✽
A21-6587-03
2A
✽
A64-4134-02
2B
✽
A84-0463-02
KAC-5203
DRESSING PANEL
DRESSING PANEL
PANEL
REAR PANEL
KE1
M1
C217,218
C219,220
C221
C301,302
C303
A d d
✽
B64-3531-00
✽
B64-3532-00
✽
B64-3533-00
INST. MANUAL (ENG.FRE.SPA.) KE1
INST. MANUAL (GER.DUT.ITA.POR.) E1
INST. MANUAL (ENG.T-CHI.S-CHI.) M1
C304
C305
C306
C307-310
C601,602
DC1 1A E30-6145-05 CONNECTING CORD ASSY
F1 3B F52-0014-05
✽
H54-3981-03
✽
H54-3983-03
FUSE (BLADE TYPE) (25A)
ITEM CARTON CASE
ITEM CARTON CASE
KE1
M1
C603,604
C605
C606
C607
C608
1A
2B
3B
3B
2B
1A
N99-1587-05
N09-6365-05
N80-3010-43
N89-3008-48
N09-4215-08
SCREW SET
SEMS (TAPTITE SCREW) (2.6X13)
PAN HEAD TAPTITE SCREW
BINDING HEAD TAPTITE SCREW
SCREW WASHER
W01-1607-05 ACCESSORY
AUDIO UNIT (X09-8612-70)
B30-1710-05 LED (RED)
CD04AU1H100M NP-ELEC 10UF
CD04BJ1H100M ELECTRO 10UF
50WV
50WV
CQ93FMG1H102J MYLAR 1000PF J
CD04BJ1E470M ELECTRO 47UF 25WV
CK73GB1H103K CHIP C 0.010UF
K
CD04AU1H2R2M NP-ELEC 2.2UF
50WV
CD04AZ1C222M ELECTRO 2200UF 16WV
CK45FB1H102K CERAMIC 1000PF K
CD04AZ1V222M ELECTRO 2200UF 35WV
CD04BJ1E470M ELECTRO 47UF 25WV
CK73GB1H102K CHIP C 1000PF K
CD04BJ1H100M ELECTRO 10UF 50WV
CC73GCH1H150J CHIP C
CK73GB1H103K CHIP C
CC73GCH1H470J CHIP C
15PF
0.010UF
47PF
J
K
J
CC73GCH1H150J CHIP C
CC73GCH1H470J CHIP C
CK73GB1H103K CHIP C
CK73GB1H104K CHIP C
CK73GB1H102K CHIP C
15PF
47PF
0.010UF
0.10UF
1000PF
J
J
K
K
K
CK45FB1H102K CERAMIC 1000PF K
CD04BJ1H100M ELECTRO 10UF 50WV
CD04BJ1H100M ELECTRO 10UF
CC73GCH1H471J CHIP C 470PF
50WV
J
CK73GB1H472K CHIP C 4700PF K
CD04BJ1E470M ELECTRO 47UF
CC73GCH1H060D CHIP C 6.0PF
CC73GCH1H101J CHIP C
CC73GCH1H030C CHIP C
CC73GCH1H470J CHIP C
100PF
3.0PF
47PF
J
C
J
25WV
D
N e w
Parts No.
Description
CK73GB1H103K CHIP C
CC73GCH1H470J CHIP C
0.010UF
K
47PF J
CD04BJ1V221M ELECTRO 220UF 35WV
CK73GB1H104K CHIP C 0.10UF
K
CK73GB1H103K CHIP C 0.010UF
K
Destination
CD04BJ1H100M ELECTRO 10UF
CC73GCH1H470J CHIP C 47PF
50WV
J
CK73GB1H103K CHIP C 0.010UF
K
CD04BJ1H100M ELECTRO 10UF 50WV
CD04BJ1H100M ELECTRO 10UF 50WV
CK73GB1H103K CHIP C 0.010UF
K
CD04BJ1A101M ELECTRO 100UF 10WV
CK73GB1H103K CHIP C 0.010UF
K
CD04BJ1V330M ELECTRO 33UF
CK73GB1H104K CHIP C 0.10UF
35WV
K
R13,14
R15-18
R19,20
R21,22
R23,24
R101,102
R103,104
R105,106
R107,108
R109,110
R111-114
R115,116
R117-120
R121-124
R130
R1
R2
R3
R4
R5
R6
R7
R8,9
R10
R11,12
L1
L2
D
J1
J2
J3
C609
C610-613
C614
C615,616
C617
C618,619
CD04BJ1H4R7M ELECTRO 4.7UF
CK73GB1H102K CHIP C 1000PF
50WV
K
CD04BJ1A101M ELECTRO 100UF 10WV
CQ93FMG1H473J MYLAR 0.047UF
J
CD04BJ1H100M ELECTRO 10UF 50WV
CK73GB1H103K CHIP C 0.010UF
K
2B
2A
2B
2B
✽
✽
E63-0938-05
E58-1031-05
E70-0830-25
L33-2412-05
L19-0808-05
PIN JACK
RECTANGULAR RECEPTACLE
SCREW TERMINAL BOARD
CHOKE COIL
TRANSFORMER FOR CONVERTER
TAPTITE SCREW (3X10) N09-6447-05
RK73GB2A102J CHIP R
RK73GB2A103J CHIP R
RK73GB2A223J CHIP R
RK73GB2A104J CHIP R
RK73GB2A222J CHIP R
1.0K
10K
22K
100K
2.2K
J
J
J
J
J
1/10W
1/10W
1/10W
1/10W
1/10W
RK73GB2A472J
RK73GB2A471J
RK73GB2A103J
RK73GB2A105J
RK73GB2A103J
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
4.7K
J 1/10W
470 J 1/10W
10K J 1/10W
1.0M
J 1/10W
10K J 1/10W
RK73GB2A152J CHIP R
RK73GB2A560J CHIP R
1.5K
J 1/10W
56 J 1/10W
RK73GB2A472J CHIP R 4.7K
J 1/10W
RD14DB2H100J SMALL-RD 10 J 1/2W
RS14KB3D821J FL-PROOF RS 820 J 2W
RK73EB2E102J
RK73GB2A103J
RK73GB2A472J CHIP R
RK73GB2A103J CHIP R
RK73GB2A123J
RK73GH2A392D
RK73GB2A121J
RK73GH2A392D
RK73GH2A223D
RK73GB2A100J
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
1.0K
10K
12K
3.9K
120
3.9K
22K
10
J
J
4.7K
J 1/10W
10K J 1/10W
J
D 1/10W
J
D 1/10W
D 1/10W
J
1/4W
1/10W
1/10W
1/10W
1/10W
E : Europe K : North America M : Other Areas W : Without Europe Indicates safety critical components.
9
KAC-5203
PARTS LIST
AUDIO UNIT (X09-8612-70)
Ref. No.
R131
R149
R151,152
R153-156
R201,202
A d d
N e w
Parts No.
RK73GB2A110J CHIP R
RK73EB2E102J CHIP R
RK73EB2E222J
✽
RK73EB2E393J
CHIP R
CHIP R
RK73GB2A473J CHIP R
Description
11 J 1/10W
1.0K
J 1/4W
2.2K
J 1/4W
39K J 1/4W
47K J 1/10W
Destination
R229-232
R233-236
R237
R238,239
R251,252
R253,254
R301,302
R303
R304,305
R306
R307,308
R309-311
R601
R602,603
R604
R605
R606
R607
R608
R609
R203,204
R205-208
R209,210
R211-214
R215,216
R217,218
R219,220
R221,222
R223-226
R227,228
RK73GB2A153J CHIP R
RK73GB2A272J CHIP R
RK73GB2A101J CHIP R
RK73GB2A221J CHIP R
RK73EB2E153J
RK73FB2B470J
RK73EB2E561J
RK73FB2B473J
CHIP R
RK73GB2A331J CHIP R
RK73GB2A152J CHIP R
RK73GB2A471J CHIP R
CHIP R
CHIP R
RK73EB2E4R7J CHIP R
R92-0205-05
4.7
METAL-PLATE 0.1
RD14NB2E100J RD
RK73GB2A470J CHIP R
CHIP R
RK73GB2A222J CHIP R
RK73GB2A333J CHIP R
RK73GB2A273J CHIP R
RK73GB2A103J CHIP R
RK73GB2A473J CHIP R
RK73GB2A103J CHIP R
RK73GB2A473J CHIP R
RK73GB2A362J CHIP R
RK73EB2E392J CHIP R
RK73GB2A303J CHIP R
RK73GB2A362J CHIP R
RK73GB2A152J CHIP R
RK73GB2A332J CHIP R
RK73EB2E222J CHIP R
RK73GB2A333J CHIP R
15K J 1/10W
2.7K
J 1/10W
100 J 1/10W
220 J 1/10W
15K
330 J 1/10W
1.5K
J 1/10W
470 J 1/10W
47 J 1/8W
560 J 1/4W
10
47
47K
2.2K
33K
27K
10K
47K
J
J 1/4W
K 2W
J
J
J
J
J
J
J
J
1/4W
1/4W
1/10W
1/8W
1/10W
1/10W
1/10W
1/10W
1/10W
10K J 1/10W
47K J 1/10W
3.6K
J 1/10W
3.9K
J 1/4W
30K J 1/10W
3.6K
J 1/10W
1.5K
J 1/10W
3.3K
J 1/10W
2.2K
J 1/4W
33K J 1/10W
R610
R611
R612
R613
R615
R616
R617
R618
R619,620
R621
RK73GB2A472J CHIP R
RK73GB2A103J CHIP R
RK73GB2A333J CHIP R
RK73GB2A103J CHIP R
RK73EB2E122J CHIP R
RK73EB2E222J CHIP R
RK73GB2A103J CHIP R
RK73GB2A222J CHIP R
RK73GB2A123J CHIP R
RK73GB2A562J CHIP R
4.7K
J 1/10W
10K J 1/10W
33K J 1/10W
10K J 1/10W
1.2K
J 1/4W
2.2K
J 1/4W
10K J 1/10W
2.2K
J 1/10W
12K J 1/10W
5.6K
J 1/10W
R622
R623
R624
R625
R626,627
RK73EB2E101J CHIP R
RK73GB2A473J CHIP R
RK73GB2A562J CHIP R
RK73GB2A473J CHIP R
RK73GB2A333J CHIP R
100 J 1/4W
47K J 1/10W
5.6K
J 1/10W
47K J 1/10W
33K J 1/10W
R628,629
R630,631
R632,633
R634
R635
RK73GB2A103J
RK73GB2A682J
RK73GB2A220J
RK73GB2A154J
RK73GB2A104J
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
10K
6.8K
22
150K
100K
J
J
J
J
J
1/10W
1/10W
1/10W
1/10W
1/10W
E : Europe K : North America M : Other Areas W : Without Europe
10
W121,122
W123
W124-130
W131
W132,133
W134-138
W139
W140,141
W142-148
W149-153
W154-156
W157
W158,159
W160
W161
W163,164
S1
D1
R664
R665
R666
R667
VR1
W101
W102,103
W104
W105
W106,107
W108
W109
W110
W111,112
W113
W114
W115
W116
W117
W118-120
Ref. No.
R636
R637,638
R639
R640,641
R642-645
A d d
N e w
Parts No.
RK73GB2A332J
RK73GB2A103J
RK73GB2A332J
RK73GB2A104J
RK73GB2A122J
R646-649
R650
R651
R652-654
R655,656
R657
R658,659
R660,661
R662
R663
RK73GB2A102J
RK73GB2A123J
RK73GB2A103J
RK73GB2A473J
RK73EB2E100J
RK73EB2E102J
RK73GB2A153J
RK73GB2A103J
RK73GB2A472J
RK73GB2A103J
RK73GB2A154J
RK73GB2A103J
RK73GB2A332J
RK73GB2A103J
R31-0232-15
R92-2053-05
R92-1252-05
R92-2053-05
R92-1252-05
R92-2053-05
R92-1252-05
R92-2053-05
R92-1252-05
R92-2053-05
R92-1252-05
R92-2053-05
R92-1252-05
R92-2053-05
R92-1252-05
R92-2053-05
R92-1252-05
R92-2053-05
R92-1252-05
R92-2053-05
R92-1252-05
R92-2053-05
R92-1252-05
R92-2053-05
R92-1252-05
R92-2053-05
R92-1252-05
R92-2053-05
R92-1252-05
R92-2053-05
R92-1252-05
R92-2053-05
S62-0842-05
RM4ZLF-J4NF
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
Description
3.3K
J 1/10W
10K J 1/10W
3.3K
J 1/10W
100K J 1/10W
1.2K
J 1/10W
Destination
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
1.0K
12K
10K
47K
10
J
J
J
J
J
1/10W
1/10W
1/10W
1/10W
1/4W
1.0K
J 1/4W
15K J 1/10W
10K J 1/10W
4.7K
J 1/10W
10K J 1/10W
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
150K
10K
3.3K
10K
J
J
J
J
1/10W
1/10W
1/10W
1/10W
VARIABLE RESISTOR (10K,A)
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
0 OHM J
0 OHM J
0 OHM J
0 OHM J
0 OHM J
1/8W
1/16W
1/8W
1/16W
1/8W
0 OHM J 1/16W
0 OHM J 1/8W
0 OHM J 1/16W
0 OHM J 1/8W
0 OHM J 1/16W
0 OHM J 1/8W
0 OHM J 1/16W
0 OHM J 1/8W
0 OHM J 1/16W
0 OHM J 1/8W
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
0 OHM J 1/16W
0 OHM J 1/8W
0 OHM J 1/16W
0 OHM J 1/8W
0 OHM J 1/16W
0 OHM J 1/8W
0 OHM J 1/16W
0 OHM J 1/8W
0 OHM J 1/16W
0 OHM J 1/8W
CHIP R
CHIP R
CHIP R
CHIP R
CHIP R
0 OHM J 1/16W
0 OHM J 1/8W
0 OHM J 1/16W
0 OHM J 1/8W
0 OHM J 1/16W
CHIP R 0 OHM J 1/8W
SLIDE SWITCH
DIODE
Indicates safety critical components.
PARTS LIST
AUDIO UNIT (X09-8612-70)
Ref. No.
A d d
N e w
Parts No.
D2-4
D6
D7
D8,9
D101
Description
1SS133
FCH10A20
FRH10A20
UDZS15B
DIODE
DIODE
DIODE
ZENER DIODE
LM1MA142WK-G DIODE
D612
D613
D614
D615,616
D617
IC1-3
IC4
IC5
Q3
Q4,5
Q6
Q7,8
Q201-204
Q205,206
Q207-210
Q211,212
Q213,214
Q215,216
Q217,218
Q219,220
D102
D103,104
D201-204
D601
D602
D603
D604
D605-607
D609
D610,611
Q601
Q602-604
Q605,606
Q607-609
Q610
Q611
Q612
Q613
Q614
Q615,616
Q617
Q618,619
Q620
Q621-623
TH1
LM1MA142WA-G DIODE
UDZS6.8B
ZENER DIODE
1SS133
UDZS6.8B
UDZS15B
DIODE
ZENER DIODE
ZENER DIODE
1SS133
UDZS10B
1SS133
UDZS10B
1SS133
DIODE
ZENER DIODE
DIODE
ZENER DIODE
DIODE
LM1MA142WK-G DIODE
LM1MA142WA-G DIODE
1SS133 DIODE
LM1MA142WA-G DIODE
1SS133 DIODE
BA4560RF
TL494IDR
BA4560RF
2SC4097
2SA1577
ANALOGUE IC
ANALOGUE IC
ANALOGUE IC
TRANSISTOR
TRANSISTOR
2SC4097
STP60NF06FP
2SA1576A(R,S)
2SA992-A(F,E)
2SC1845-A(F,E)
2SC3419(Y)-F
2SC1627A-F
2SA817A-F
2SC4468NF
2SA1695NF
TRANSISTOR
FET
TRANSISTOR
TRANSISTOR
TRANSISTOR
TRANSISTOR
TRANSISTOR
TRANSISTOR
TRANSISTOR
TRANSISTOR
2SB1241
2SC4081
2SA1576A(R,S)
2SC4081
2SC1845-A(F,E)
2SC4081
2SA1576A(R,S)
2SC4081
2SA1576A(R,S)
2SC4081
TRANSISTOR
TRANSISTOR
TRANSISTOR
TRANSISTOR
TRANSISTOR
TRANSISTOR
TRANSISTOR
TRANSISTOR
TRANSISTOR
TRANSISTOR
2SC1845-A(F,E)
2SA992-A(F,E)
2SC1845-A(F,E)
TRANSISTOR
TRANSISTOR
TRANSISTOR
2SC4081 TRANSISTOR
NCP18WB473J0S THERMISTOR (47K OHM)
Destination
Ref. No.
A d d
N e w
Parts No.
KAC-5203
Description
Destination
E : Europe K : North America M : Other Areas W : Without Europe Indicates safety critical components.
11
KAC-5203
SPECIFICATIONS
CEA-2006
RMS Watts per channel @ 4
Ω
, 1% THD+N .......................................... 55W x 2
Signal to Noise Ratio (Reference: 1W into 4
Ω
) ....................................... 80dBA
Audio Section
Max Power Output .................................................................................... 350W
Rated Power Output
Normal (4
Ω
) (20Hz~20kHz, 0.08% THD) .......................................... 55W x 2
Normal (4
Ω
) (DIN: 45324, +B=14.4V) ............................................... 55W x 2
Normal (2
Ω
) (1kHz, 0.8% THD) ......................................................... 75W x 2
Bridged (4
Ω
) (1kHz, 0.8% THD) ...................................................... 150W x 1
Frequency Response (+0, –3dB) .................................................... 5Hz~50kHz
Sensitivity (rated output) (MAX.) ................................................................ 0.2V
Sensitivity (rated output) (MIN.) ................................................................. 5.0V
Signal to Noise Ratio ................................................................................. 95dB
Input Impedance ....................................................................................... 10k
Ω
Low Pass Filter Frequency (-12dB/oct.) .................................................... 80Hz
General
Operating Voltage ...................................................... 14.4V (11~16V allowable)
Current Consumption .................................................................................. 17A
Dimensions (W x H x D)
........................................ 230 x 55 x 198 mm (9-1/16 x 2-3/16 x 7-13/16 inch)
Weight ........................................................................................ 1.7kg (3.75lbs)
KENWOOD follows a policy of continuous advancements in development.
For this reason specifications may be changed without notice.
INSTALLATION
230mm
217.4mm
ø4.6
Self-tapping screw
(ø4 x 16 mm)
Installation board, etc.
(thickness : 15mm or more)
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Table of contents
- 1 COVER
- 2 BLOCK DIAGRAM
- 3 COMPONENTS DESCRIPTION
- 3 AUDIO UNIT (X09-8612-70)
- 4 PC BOARD
- 4 AUDIO UNIT (X09-8612-70)
- 4 FOIL SIDE VIEW (1/2)
- 5 FOIL SIDE VIEW (2/2)
- 6 SCHEMATIC DIAGRAM
- 6 AUDIO UNIT (X09-8612-70)
- 6 1/2
- 7 2/2
- 8 EXPLODED VIEW
- 9 PARTS LIST
- 9 KAC-5203
- 9 AUDIO UNIT (X09-8612-70)
- 12 SPECIFICATIONS
- 12 INSTALLATION