Kenwood KAC-8020 User manual

KACB020 «KENWOOD
TRIO-KENWOOD CORPORATION
SERVICE MANUAL
C 1986-3 PRINTED IN JAPAN
B51-1955-00(O) 1928
Heat sink*
(FO1-)
KAC -B8020
A PRODUCT OF ADVANCED REBEAREH NTO
APRLIED ELECTRONICS ANO THE HUMAN
Y REGPONSE TO BOUND PHENOMENA / BULT TO
KENWOOD Tne PAIS CRONE OF ENGIECRAG OMEN
STEREO MAIN AMPLIFIER,
Panel * Foot
(A29-) (JO2-0183-08)
Connector Fuse Slide switch Cylindrical receptacle (DIN)
(E03-0080 -08) (F05-2038-05) {S31 -4021-08) (E06-0809-08)
|
|h
—>_—= ———
Rear panel Terminal board Potentiometer
(A23-3190-08) (E20 -0457-08) (R29-3021-08)
*Refer to parts list on pap 6.

KAC-8020
DISASSEMBLY FOR REPAIR
Disassembly as follow (NO. @ to ®).

KAC-8020 KAC-8020
BLOCK LEVEL DIAGRAM ADJUSTMENT/REGLAGE/ABGLEICH/PACKING
5 ADJUSTMENT
a
5
INPUT
OUTPLT
AMPLIFIER
ALIGNMENT
eal
°
|
ITEM
SETTINGS
SETTINGS
SETTINGS
POINTS
ALIGN
FOR FIC.
|
IDLE
Connect
a
DC
VR101
(L)
!
1
CURRENT
voltmeter
to
TP,
VOLUME:
0
VR201
(R)
12nV
(a)
2 |
E es pee as |
S 2 b | REGLAGE
REGLAGE DE REGLAGE DE REGLAGE DE POINTS DE
ee 3 ITEM L° ENTREE LA SORTIE L'AMPLIFICATEUR | L* ALIGNMENT ALIGNER POUR | FIG.
a A CL
Ze oO be
OF e)
co “4 w COURANT DE - Connecter un VR101 (C)
81 5G al 2 POLARISATION voltmétre de CC au TP, VOLUME: 0 R201 (D)
b= oa 3) c
PARATOR
(Va)
COM-
ABGLEICH
| EINGANGS- AUSGANG- VORSTARKER- ABGLEICHE-
S | ui ti GEGENSTAND EINSTELLUNG EINSTELLUNG EINSTELLUNG PUNKTE ABGLEICHEEN FUR ABB,
3 ia fc
o | oS os Einen Gleichspannungs-
oS os LEERLAUF- messer zu TP VOLUME: 0 VR101 (L)
| LO zo STROM anschlieBen, VR201 (R)
¥ |
a
a
a|
°
|
#
7
PACKING
= a ACK
5
=
[og
Protection
bag
(H25-0112-04)
w Screw set
eg | > (N99-0234-08) Instruction manual* (B50-)
ie
ra
. .
Warranty
card*
(B46-)
= oO
ae
>
5
2
|
B
Polystyrene
foamed
fixture
28
3
R
(H10-1886-08)
Gordaa’y
wes | g (E30-1433-08) _
By eee 1 |
{e)
FE
= S$ |
“” 5
(x) °
oS wy =
‘a | :
rs) ae
+ )
= | ts) Protection bag
iad eee ieee (H25-0173-04)
; |
<x
w
iva
ea 4 wy N
8 & < a) Ooze ne |
= Zor z}/o8s 928]
ze]
Sliss
ase
FOS g|Zz2 Ba218
"|
Eo
> 5 |
ke
a
5 |
O
| Fs) Item carton bow*
b WT i (HO1-)
g
38
»
28
2
25
+
o
*Refer to parts list on page 6.

PC BOARD
KAC-8020 KAC-8020
206
DC DC CONVERTER (WO2) (B/6) Foil side view
POWER IN
B ec
a5 32V 16.5V
as | siv_ | 3av
a7 35.5v. |v
as. | 23v. | 38.5V
Q9—012 —1.4V 15.3V
13.014. —1.45V 14.3V
Q15 13.6V 14.1V
aie | 07v ov
W02 (B/6)
1C1
W02-0706-08 (A/6)
1c2
FUSE (W02) (F/6)
Foil side view
wo02 (C/6)
Ic3
©
a
a
So
= |
ae |
wi §
INDICATOR (W02) o3
(E/6)
Foil
side
view
0
—|
> OF
a
|
eK
>
a
DC voltmeter =
(ta)
a
ooo00c00
a
go
re
ee
ey
-
(a)
12mV
5
FRONT
=
e—
(?p)
:
a
FONeS AMP (W02-0706-08) 7,
A/6) Foil side view PRE AMP (W02) (C/6)
Foil side
view
KAC
-
8020
Refer to the schematic diagram for the values of resistors and capacitors.
Rch
Lch
LSPEAKERSA

VRI (1/2)
20K (B)
c102 0,001
R104 20K
R204 20K
VRI(1/2)
C202 0.001
R400 R402
2.4K 2.4K
c 400
100p 10
C303 0,27
eS ee ee ee,
3
a a
bey R300 R302
100p 10 2.4K 2.4K
w02-0706-08 (A/6)
ee
Le
R229 220
IC 6 (1/4)
v
RIO6 9.1K
R206 9.1K
Ov.
@ OC voltages are as measured with a high impedance
voltmeter with no signal input. Values may vary
slightly due to variations between individual instru-
ments or/and units.
2SA970
2SA817A
2S8C3708
2SC2655 Qe Ka 28C3854
~C B Sc E
2SA1490
2S B829
C120 10p1é
CHS = R108 0.2
100n10 2k
+
C107
100p 10
ClO 0.033
10 1/2W
C220 10plé
RiUl4@ 75K
C8 p50
KR
<
=
°.
m
6
KR
vt
R214 75K
C218 1p50
Ny
C219 0,047
C213 0,0
D204
20,
34
10010
C210 0,033
Z
+
C218 R208
1oopi0 «= 2K Yoav
CHE 1150
C7 0.047
C406 100p10
R53 510
vow
RI7 33K
PROTECTION
Lav
c50 0.01
R22 20K
Cll 0,01
Ici ¢ MN3102 Q2,13,14 : 28C3708(s) Qs
1c2 : pPC1237H Q4 > 2SA1048(GR) Q102, 202
: 284970 (GR)
> 28C3421(y)
Ic3 > NJM2068D-D Q5 : 288 829(Q,R,S) Q103, 203 : 25C3854(Y,0)
1c4,5: pPCI270H Q6 1 28C2655(yY) Q104,204 | 2SA1490(Y,0)
Ic6 : NJM20580 Q7 1 2SABITACY) Q105,205 : 28C2458(GR)
08,16 1 28C2458(GR)
Q9~12 1 2$01062(s)
2SA1048 2803421 2SD1062 NJM2068D-D NJM2058D uPC1237H
28C2458 8
ae
09 DIO
R35 1 1/2W
+
Z
18
4700" 40
i +
ci7
bay 3300p 40
(eee
uo s pI
C4 C13
0.047 }0.047
:
C53
2200p 35 Ju
, <
wo2
‘ (E/6)
: B30-1120-08 C7
Z04,5 : Hz982 LED!
06 : : CTU-12R
+ GU-3SY 014
55
207 :HZ5C-1 DI5 : UB-152 A
08 :RM4Z 016, 17 RHIZ LED!
D9,10 : vo3c D103, 104,203,204 :1N4002
012,13: CTU-12S DIO5~107, 205~207 | IS2076A —_ —
DI9,20
:
IN4002
;
2018
-HZ5C3
KAC
—
8020
(E)
MN3102 uPC1270H
KAC-8020
NEN Ol0)B

EXPLODED VIEW
KAC-8020 | KAC-8020
>» New Parts PA RTS L l ST
Parts without Parts No. are not supplled.
Les articles non mentionnes dans le Parts No. ne sont pas fournis.
Telle onne Parts No. werden nicht gellefert.
Ref. No. Address |New Parts No. Description
Parts,
SmRES (ft © ¥ 8B & £ 8 BA ASR
KAC-8020
3)
rea’
a TIN
wba SoS
72I SUBWOOFER “
A M3x14 : N30 - 3014 -45
B M3x10 (F) + N32- 3010-46
C M3x4 1 N30 - 3004-46
@ 3x6 = (Bi- Top) : NO9- 1670-08
M4x12~ (Bi) BLK : NO9- 1598-08
F M3x8 (Bi) 1 N35- 3008-46
G M3x8 : N30- 3008-46
H M206x4 BLK : N30- 2604-45
J @2x6 (TP-T) BLK : N52- 2006-45
K ©3x5 (Bi-Top) BLK : N89- 3005-45
@pr : N29- 0083-08
@ 4x6 + NOS- 1688-08
KAC- 8020
A2Z3-3190-08
A29-0080-08
A29-0081-08
B19-0398-08
B46-0100-00
B46-0123-03
B50-6148-00
BSO-6149-00
BS0-6150-00
E23-0146-05
E23-0147-05
E30-1433-08
E30-1435-08
E30-1436-08
E30-1443-08
FO1-1112-08
FO1--1113-08
BS8-0245-33
HO1i-7148-08
HO1-7149-08
HO3-0817-08
HO3-0818-08
H10-1886-08
H10-1887-08
H13-0003-08
H25-0096-04
H25-0112-04
H25-0173-04
J02-0183-08
J19-2677-08
N99-0234-08
NO9-1670-08
NO9-1598-08
N29-0083-08
NO9-1688-08
REAR PANEL.
PANEL
PANEL.
LIGHTING BQARD
WARRANTY CARD
WARRANTY CARD
INSTRUCTION MANUAL (ENG.FR)
INSTRUCTION MANUAL (ENGLISH)
INSTRUCTIO®N MANUAL (GER, ITAL)
CRIMP SLEEVE
CLIMP TERMINAL
CORD ASSY
DC PQWER CORD
DIN EXTENTION CORD
EXTENTION CORD
HEAT SINK
HEAT SINK
CAUTISN CARD
ITEM CARTON BOX
ITEM CARTON BAX
QUTER PACKING CASE
QUTER PACKING CASE
POLYSTYRENE F&AMED FIXTURE
POLYSTYRENE F@AMED FIXTURE
CARTAN BAARD
PROTECTIAQN BAG
PROTECTION BAG
PROTECTION BAG
FOOT
H88T H&LDER
SCREW SET
SCREW (3X6)
SCREW (4X12)
PUSH RIVET
SCREW (M4X6)
AMP UNIT (W02-0706-08)
B30-1120-08
CEO4DW1iH101M
CAI2MLHLOSK
CEO4DWLH1O1M
CFI2VIH473I
[90-1414-08
C90-1412-08
C90-1411-08
CEO4DWIC222M
C90-1413-08
C90-1356-08
CEO04DW1HO10M
CF92V1IH473I
LED (POWER)
ELECTRA 100UF SOW
MYLAR Q.010UF K
ELECTRA 100UF SOWY
MF 0.04?7UF J
ELECTRS 220UF SOWV
ELECTRA S3308UF 40WY
ELECTRS 4700UF 40WV
ELECTRA 2200UF 16WV
ELECTRA S300UF 25WV
ELECTRA 3900UF 16WV
ELECTRA 1. OUF SOWV
MF 0.04?UF J
@pr
: N29- 0053-05
Parts with the exploded numbers larger than 700 are not supplied.
E: Scandinavia & Europe H:Audio Club K:USA P: Canada © W:Europe
A : Saudi Arabia T:England — U: PX(Far East, Hawaii)
UE : AAFES(Europe) X: Australia M: Other Areas A\ indicates safety critical components.

KAC-8020 KAC-8020
ee PARTS LIST
Parts without Parts No. are not supplied.
Les articles non mentionnes dans le Parts No. ne sont pas fournis
Telle ohne Parts No. werden nicht gellefert.
Ref. No. Address |New Parts No. Description
Parts|
SRS (th ©) ¥F 8 & € 8 BA ASR
x
NewParts
.
PARTS
LIST
Parts without Parts No. are not supplied.
Les.articles non mentionnes dans le Parts No. ne sont pas fournis.
Telle onne Parts No. werden nicht gellefert.
Address Parts No. Description
i if gg & 8 Bh BSR
C2?
C28
C30
C31
C33
C35
C3?
C44
C45
C49
C50
CcS1i
CS2
C53
C54 »55
C101
C102
C103
C104,105
C10?
C108
C109
c110
C112
C113
C114
C115
C116
Cii?
C118
C119
Ci20
C201
C202
C203
C204,205
C207
C208
c209
C210
C212
C213
c2i4
C215
C218
C219
C220
C300
C301
C302
C303
C304+305
C306
c400
c401
CAI2M1LH221K
CEO4DW1HO1OM
CEQ4DW1E221M
CK45B1H4 73K
CF92V1H473I
CFI2VIHS62T
CK45B1H473K
CEO4DWiHORIM
CFI2V1IH473I
CF92V1IH473I
CQ92M1H103K
CEO4DWIH4R7M
C91-0843-08
CED4DW1V222M
CK45B1H4 73K
CEO4DW1H3R3M
CA92M1H102K
CEO4DW1C100M
CEO04DW1A101M
CEO4DW1A101M
CC45CH1H330K
CEO4DWLH2R2M
CO9I2M1IH333K
CE04DW1H2R2M
CF92V1IH473I
CK45B1H102K
CEO4DW1A10iM
CEO4DW1HO10M
CF92V1IH473I
CE04DW1HO10M
CFIQV1IH473I
CEO4DW1C100M
CEO4DW1H3R3M
COIeM1IH1O2K
CEO04DW1C100M
CEO4DW1A101M
CEO4DW1A101M
CC45CH1H330K
CEO4DW1H2R2M
COQI2MLH33I3K
CEO4DW 1H2R2M
CF92V1H473I
CK45BiH102K
CEO4DWLA101M
CEO4DW1HO10M
CF92V1H473I
CEO04DW1C 100M
CEO4DW1A101M
CEO4DW1iHeR2M
CEO4DWLH4R7M
CFI2VIH274I
CEO4DW1C100M
CEO4DW1A101M
CEO4DW1A101M
CEO04DW1HO10M
MYLAR
ELECTRO
ELECTRS
CERAMIC
MF
MF
CERAMIC
ELECTRO
MF
MF
MYLAR
ELECTRA
MYLAR
ELECTRA
CERAMIC
ELECTRA
MYLAR
ELECTRA
ELECTR
ELECTRO
CERAMIC
ELECTRA
MYLAR
ELECTRO
MF
CERAMIC
ELECTRO
ELECTRA
MF
ELECTRA
MF
ELECTRA
ELECTRA
MYLAR
ELECTRS
ELECTR
ELECTRA
CERAMIC
ELECTRO
MYLAR
ELECTRO
MF
CERAMIC
ELECTRA
ELECTR
MF
ELECTR
ELECTRO
ELECTRO
ELECTRO
MF
ELECTRO
ELECTRA
ELECTRO
ELECTRA
220PF
1. OUF
220UF
0. 04 ?7UF
0. 047UF
Sé00PF
0. 047UF
0. 1UF
0. 04 7UF
0. 047UF
0. O10UF
4. 7UF
1UF
2200UF
0. 04 7UF
3. 3UF
1000PF
10UF
1Q00UF
100UF
33PF
2. 2UF
0. O33UF
2. 2UF
0. 04 7UF
1000PF
100UF
1. OUF
0. 047UF
1. OUF
0. 04 7UF
1OQUF
3. 3UF
1O00PF
10UF
100UF
100UF
33PF
2. 2UF
0. O33UF
2. 2UF
0. 047UF
1000PF
100UF
1. OUF
0. 04 7UF
1OUF
100UF
2. 2UF
4. 7UF
0. 2?7UF
10UF
100UF
100UF
1. OUF
C402
C403
C404,405
C406
31
32
37
41
42
43
R2?
R34
R38
R42
R45
R46
R4?
RS1
R53
RS?
Rl21,122
R126
R12?
R131
R221.222
R226
R22?
R231
VR1
VR1O1
VR201
RL1
RL2
SW1
10
Di2 »13
D14
DIS
D16é »17
DI9 »20
D103,104
D105-107
CEO4DW1LHER2M
CEO4DWLHRISM
CEO4DW1C100M
CEO4DW1A101M
E06-0809-08
E03-0080-08
E20-0457-08
FO1-1114-08
FO01-1115-08
FO1-1116-08
FOS-2038-05
J13-0063-08
L33-0318-08
L39-0113-08
L39-0113-08
L19-0035-08
L19-0046-08
N29-0053~-05
RD14BB2H6225
RS14GR3A1027
RD14BB2HO10J
RS14GB3A1005
R92-0351-08
RDI4BB2H2715
RS14GB3A302I
RD14BB2H2R2I
RS14GB3A1015
RD1I4BB2HS11T
RD14BB2H3915
R9I2-0268--08
RS14GB3A100T
RD14BB2H100J
RD14BB2H4R7 J
RI2-0268-08
RS14GB3A1005
RD14BB2H100J
RD14BB2H4R7J
R29-3021-08
Ri2-1054-05
R12-1054-05
$51-0001-08
$51-2080-08
$31-4021-08
GU-3SY
RM4Z
VO3C
CTU-125
CTU-12R
UB-152
RH1Z
IN4002
1N4002
1520768
ELECTRA
ELECTRA
ELECTRA
ELECTRS
2. 2UF
0. 1SUF
10UF
100UF
CYLINDRICAL RECEPTACLE
CONNECTOR (PQWER)
TERMINAL B&ARD
HEAT SINK
HEAT SINK
HEAT SINK
FUSE
FUSE HO&LDER
CHOKE COIL
COIL
COIL
TRANSFORMER
TRANSFORMER
PUSH RIVET
RD
FL-PROOF RS
RD
FL-FROOF RS
RN
RD
FL-PROOSF RS
RD
FL-PRO8F RS
RD
FL-PROOF RS
RD
RD
RS
FL-PROGF RS
RD
RD
an Cee mG aca Coo, Cre, Gy
4.7 J 172W
POTENT IOMETER(20KB) SENSITIVITY
TRIMMING P&T. (1KB) IDLE
TRIMMING PAT. (1KB) IDLE
RELAY (THERMAL GAIN CANTRAL )
RELAY (MUT ING)
SLIDE SWITCH
DIQDE
DIQDE
DIQDE
DIQDE
DIQDE
DIQDE
DIQDE
DIQDE
DIQDE
DIQDE
(SUB WRBFER)
E:
Scandinavia
&
Europe
H:Audio
Club
K:USA
P:Canada
|
W:Europe
E:
Scandinavia
&
Europe
H:AudioClub
K:USA
P:Canada
©
W:Europe
A
:
Saudi
Arabia
T:England —_U:
PX(Far
East,
Hawaii)
A
:Saudi
Arabia
T:England
—
U:
PX(Far
East,
Hawaii)
UE : AAFES(Europe) X: Australia. M: Other Areas _ AX indicates safety critical components. UE : AAFES(Europe) X: Australia. M: Other Areas A\ 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.
Telle onne Parts No. werden nicht gellefert.
Ref. No. Address |New Parts No.
Parts,
SRS (th RF 8 & € 8
D203» 204
D205-207
Ici
Ica
IC3
Ic4
IC6
Q2
4
QS
Q6
Q?
a8
Qa?
Q13
ais
Q16
S
-12
»14
0102
0103
0104
0105
n202
0203
0204
h205
7D4
ZD?
7D18
es]
E: Scandinavia & Europe H:Audio Club K: USA
A: Saudi Arabia
UE : AAFES(Europe)
T: England
X: Australia
PARTS LIST
1N4002
1S2076A
MN3102
UPC1237H
NJM2068D-D
UPC1270H
NJM2058D
25C3708(5)
25A1048(GR)
25B829(0sRsS)
2502655 (Y)
2SABI PAY)
2502458 (GR)
25D1062(5)
25C3708(5)
25A970(GR)
2502458 (GR)
250342107)
2503854 (Y+8)
25A1490(Y»8)
2502458 (GR)
2503421 (Y)
2503854 (Y,8)
25A1490(Y>8)
2502458 (GR)
HZ9B2
HZSC-1
HZSC-3
P: Canada
U: PX(Far East, Hawaii)
M: Other Areas
Description
Bh asm
DIQDE
DIQDE
IC(CLOCK GENERATOR/V OPERATION
IC (PROTECTION)
IC(QP AMP X2)
IC(PRWER AMF)
IC(CQP AMP X4)
TRANS ISTAR
TRANSISTOR
TRANSISTOR
TRANSISTOR
TRANSISTOR
TRANSISTOR
TRANSISTOR
TRANSISTAR
TRANSISTOR
TRANSISTOR
TRANSISTOR
TRANSISTOR
TRANSISTOR
TRANSISTOR
TRANSISTOR
TRANSISTOR
TRANSISTOR
TRANSISTOR
ZENER DIQDE
ZENER DIQDE
ZENER DIQDE
W:Europe
A indicates safety critical components.
KAC-8020 KAC-8020
SPECIFICATIONS
Specifications subject to change without notice
Main amp section
Maximum output power (1 kHz, 4 Q) ....0..00.. coco eccecceceecenseeeees 140 W+ 140 W
Maximum rated output power(10% THD, 1 kHz, 4 Q) ..0.00. ee 95 W+95 W
Rated output power(1% THD, 20 Hz - 30 kHz, 40) .....0. ee. 80 W+80 W
Frequency response (—3 dB) ..........0c.ccccccececceeeeeeceeececteseueseseees 2 Hz - 100 kHz
Minimum distortion (10 W, 1 kHz, 4 Q)...... 0. cccc cece nec eneceeseeseenes 0.005%
Input sensitivity (at rated output) Max. .......0.0.0c. cc ceccececccecceceeeceeeucaeeeensaeeees 0.1 V
Mine Arya biessapne a Gade esl a ae Sag ous 2.0V
Signal-to-noise ratio (IHF-A) 00... c cece eee eecce cee seeseeteeeuseeereeeeeenenss 100 dB
Input impedance.........
Damping factor (1 kHz)
General
Operating voltage (GND)
Current consumption....
Dimensions (W x H x D)
WIGHT r:.c.ctde tet te
9-7/16 x 2-1/4 x 7-7/8 in
shart atish (Content he ohhd siuil tect ne he nde al a Upset t einie RS OURG
7.3 Ib
Note:
Component and circuitry are subject to modification to insure best ope-
ration under differing local conditions. This manual is based on, the
Europe (E) standard, and provides information on regional circuit modi-
fication through use of alternate schematic diagrams, and information on
regional component variations through use of parts list.
TRIO-KENWOOD CORPORATION
Shionogi Shibuya Building, 17-5, 2-chome Shibuya, Shibuya-ku, Tokyo 150, Japan
KENWOOD ELECTRONICS
DIVISION OF KENWOOD U.S.A. CORPORATION
1315 E. Watsoncenter Rd., Carson, California 90745, U.S.A.
75 Seaview Drive, Secaucus, New Jersey 07094, U.S.A.
TRIO-KENWOOD CANADA INC,,
1070 Jayson Court, Mississauga, Ontario, Canada L4W 2V5
TRIO-KENWOOD ELECTRONICS, NV.
Leuvensesteenweg 504 B-1930 Zaventem, Belgium
TRIO-KENWOOD ELECTRONICS GmbH
Rembnicker Str. 15, 6056 Heusenstamm, West Germany
TRIO-KENWOOD FRANCE S.A.
5, Boulevard Ney, 75018 Paris, France
TRIO-KENWOOD (AUSTRALIA) PTY. LTD. tNcoRPORATED IN NSW)
4E Woodcock Place, Lane Cove, N.S.W: 2066, Australia
KENWOOD & LEE ELECTRONICS, LTD.
Wang Kee Building, Sth Floor, 34-37, Connaught Road, Central, Hong Kong

STEREO POWER AMPLIFIER
KAC-8020
TRIO-KENWOOD CORPORATION
GOO/ANS>DI
©PRINTED IN JAPAN B50-6148-00(E) (T)
8712110987654321 861211109876543
INSTRUCTION MANUAL

Take the time to read through this instruction manual. Familiarity with
installation and operation procedures will help you obtain the best
performance from your new power amplifier.
For your records
Record the serial number found on the bottom of the unit in the
spaces designated on the warranty card and in the space provided
below. Refer to the model and serial numbers whenever you call
upon your KENWOOD dealer for information or service on this pro-
duct.
Model KAC-8020 Serial number

Care and Maintenance
@ The power source of this unit is exclusively DC 12 V, negative
ground. If you wish to mount the unit on a vehicle with DC 24 V,
please consult your appointed KENWOOD dealer.
@ Do not place the amplifier in a place where the amplifier may be ex-
posed to direct sunlight, heat or moisture. Be careful that metal ob-
jects and water do not enter the set.
@ |f you have difficulty in installing the set in your car, please contact
your KENWOOD dealer.
Cleaning
Clean with a dry silicone cloth or a soft cloth. The use of thinner,
alcohol or other solvents may damage the surface finish.

Installation
*
When
installing
to
the
car,
install
the
unit
securely
for
safety
driving.
Tapping screws (@5 x 25 mm)
@
Use
screws
supplied
as
accessories
when
installing
the
unit.

Since the power amplifier has no parts which require operation, it
can
be
installed
at
a
position
away
from
the
driver's
seat
without
any hinderances. But due to its considerable weight, it needs to be
installed securely.
Use
the
extension
cables
CA-18F
(1
m),
CA-28F
(2
m),
and
CA-
48F
(4 m)
(optional)
when
the
connected
models
are
to
be
install-
ed
away
from
the
power
amplifier.
As generally accepted positions for its installation, places such as
under the front seat or inside the trunk, etc. can be considered.
Install the unit in a well-ventilated place and do not place any
(heavy) object on it.

Connection
Extension
cable
(supplied)
Cassette
receiver
or
cassette
tuner
Fuse (20 A)
KAC-8020
¢ Prepare the speaker cables
——
(®gray/red,
Ogray)
Left speaker
(®gray/blue, Qgray)
Ground (black) ©
Grounded to the metal body of the car
Connect the ground lead to the metal
part
which
is
connected
to
the
(—)
terminal of the battery.

¢ Make sure the main fuse of the car is connected
between the power source line (yellow) and the
battery. If the main fuse cannot be located,
connect a new 30 A fuse.
Engine room
————
Interior Power cord
extension cord
a UR re (yellow) ®
Do not allow the cord to
directly contact the edge
of the iron plate by using
grommets (supplied).
@
If
you
hear
a
noise
when
starting
the
engine,
con-
nect
the
line
noise
filter
CN-300
(optional)
to the
power
source
(yellow)
of
this
unit.
Power cord extension
Power supply (yellow) cord (yellow)
ee ——> cummed,

SENSITIVITY
O.5V
(LOW)
systems.
MW
2V 0O.1V
(NORMAL)
set this to 0.5 V (LOW).
Precautions
Since
the
electrical
consumption
of
this
unit
is
large,
obtaining
power
source
from
wir-
Connection
SUBWOOFER
50Hz (ie 100Hz
OFF J
e Subwoofer selector
This selector is for selecting speaker out-
put mode, normal or subwoofer.
When the subwoofer selector is set to
50 Hz or 100 Hz, the output level is in-
creased by 6 dB.
Adjust the ouput level with the sensitivity
control.
OFF: The normal signal is output from
the speaker output terminals.
50 Hz: Super low-frequency signal hav-
ing the cut-off frequency of 50 Hz,
cut-off slope of 18 dB/oct is output
from the speaker out terminals for
connecting the sub-woofer.
100 Hz: Super low-frequency — signal
having the cut-off frequency 100 Hz,
cut-off slope 18 dB/oct is output from
the speaker output terminals for con-
necting to the sub-woofer.
KAC-8020
{oe
© Input sensitivity control
The input sensitivity control adjusts the input sensitivity within a range
of 0.1 V to 2.0 V continuously, enabling expansion with various
Normally, set the input sensitivity control to 0.1 V (NORMAL) position
for KENWOOD cassette receiver or cassette tuner. When the output
voltage selector of the cassette receiver or cassette tuner is set to 1 V,
ings
such
as
those
of
built-in
cigarette
lighters
will
overload
the
wiring
of
the
car.
Be
sure
to
connect
the
yellow
power
lead
directly
to
the
battery
as
shown
in
the
figure
before.
@
Before
starting
to
install
the
set,
make
sure
to
remove
the
negative
(—)
terminal
of
the
battery
in
order
to
prevent
shortcircuiting.
@
When
installation
and
wiring
are
completed,
connect
the
negative
(—)
terminal
of
the
battery
after
confirming
that
there
are
no
errors.
@
When
a
fuse
is
blown
out,
check
for
any
shortcircuiting
of
cords,
and
then
replace
it
with
a
fuse
having
the
specified
capacity.
@
The
maximum
output
power
of
this
unit
is
140
W+140
W.
Therefore,
the
power
handling
capacity
of
the
speakers
connected
to
this
unit
should
be
140
W
or
more.
If
a
speaker
with
a
smaller
handling
capacity
is
connected
and
driven
at
a
high level, the speaker unit may be damaged.

Specifications
Specifications subject to change without notice
Main amp section
Maximum: output power CL KAZ, Ae) ees snrsaesareroretidavacrencerweeks 140 W+ 140 W
Maximum rated output power(10% THD, 1 kHz, 4 Q) ...................... 95 W+95 W
Rated output power(1% THD, 20 Hz - 30 kHz, 4).................008. 80 W+ 80 W
Frequency response (= 3 CB) cccdbeagsscueouwcuicabos tesa eas eane eeees 2 Hz - 100 kHz
Minimum distortion (10 W, 1 kHz, 4 Q).......... ccc cece cece cent ee eee ee eeeas 0.005%
Input sensitivity (at rated Output) Max. .......... cece cece cece eect eee teat eee eee es 0.1 V
NA te ettesea alee deta ace ee asacla scant 2.0 V
Sidnal-to-Moise tation HFA} eewespeccseene seeiviecheramedetdvaseidnce ee esettve ee 100 dB
INDUTIMPOGAN CG vinci. s seuss yey cha iwig a Heaven etna aseaen Haeeaaes acaReae ea saunas 10 kQ
DarmonnG Factor (UK) iscs.c05c1 cw tanec ear amie seevenores Quine eaaatsnxaresnsss More than 100
General
Operating voltage (GND) <0. fiiaayiks i acivae es Mee ans 14.4V (11-16 V)
CURE RT COR SUD TOM src cfornseaiuarcesueusuacven tectos cake AGagieesaheasuPeance tartan ond .19.0A
DIMEASIONS (VV 56 FOC Do tg eidecd teacedyer setters cs mcocallasbawnber 240 x 57 x 200 mm
9-7/16 x 2-1/4 x 7-7/8 in
VIGIGHE> faci tent es osha eee run anak opens O sadeute neta abiisia nied Caadad lambs baleen ds 3.3 kg
7.3 1b