Kenwood KA-2050R User manual

STEREO INTEGRATED AMPLIFIER KENWOOD
KA-2050R/3050R
SERVICE MANUAL ©1992-6 PRINTED IN JAPAN
B51 -4546-00 (S) 2349
(KA-2050R)
Panel ass'y
(A60-021 9-02)
Knob
(K29-4384-04)
Metallic cabinet
(A01 -2932-02)
Knob
(K29-4384-04)
Phone jack
(El 1-0208-05)
Knob
(K29-4382-04)
Foot
(J02-1 034-05)
Knob
(K29-4215-04)
AC power cord*
Phono jack
(El
Phono jack Miniature phone jack
Phono jack
(El 3-0634-05)
Screw terminal board Power cord bushing
(E70-0018-05): E, X, M, P,T (J42-0083-05)
(E70-001 9-05): L
outlet*
C&3-)
Slide switch
(S3 1-2322-05)

KA-2050R/3050R
Panel ass'y
(A60-021 7-02)
Knob
(K29-4384-04)
Metallic cabinet
(A01 -2932-02)
Knob
(K29-4384-04)
Phone jack
(El 1-0208-05)
Knob
(K29-4382-04)
Foot
(J02-1 034-05)
Knob
(K29-421 5-04)
Knob Phono jack
(K29-4385-04) (El 3-0634-05)
Screw terminal board
(E70-0018-05): E, X, M, P
(E70-001 9-05): L
Power cord bushing
(J42-0083-05)
Slide switch
AC outlet*
(E03-)
(S31 -2322-05)
*Refer to parts list on page 17.
Accessories
•Remote control unit .... 1
j
I0(ton: j|:
J1,
1rIff. .
(A70-0597-05)
(A09-0094-08) :Batterry cover
•Batteries (R03/UM-4/
"AAA") 2
•AC plug adaptor 1
(Except for some areas)
For the unit with aEuro-
pean AC plug in areas
other than Europe.
(E03-01 15-05)

KA-2050R/3050R
ADJUSTMENT/REGLAGES/ABGLEICH
ADJUSTMENT
No. ITEM
INPUT
SETTINGS
OUTPUT
SETTINGS
AMPLIFIER
SETTING
ALIGNMENT
POINTS ALIGN FOR FIG.
Unless otherwise specified, set the respective switches as follows:
POKER: ON SPEAKER: BREC OUT: OFF SELECTOR: PHONO
lIDLE CURRENT
Connect aDC
voltmeter across
CPI (L)
CP2 (R)
(X09-)
VOLUME: 0
VRl (L)
VR2 (R)
(X09-)
8.8 mV (a)
REGLAGES
NITEM
REGLAGE DE
L’ ENTREE
REGLAGE DE
LA SORTIE
REGLAGE DE
L‘ AMPLIFICATEUR
POINTS DE
L‘ ALIGNMENT ALIGNER POUR FIG.
Sauf indicat ioncontrai re, r6gler comme suit les commandes respectives:
POWER :0N SPEAKER: BREC OUT: OFF SELECTOR :PHONO
ICOURANT DE
POLARISATION
-
Connecter un
vollmfttre de CC
SUR CPI (G)
CP2 (D)
(X09-)
VOLUME: 0
VRl (G)
VR2 (D)
(X09-)
8.8 mV (a)
ABGLEICH
NR. CENGENSTAND
EINGANGS-
EINSTELLUNG
AUSANG-
E1NSTELLUNG
VORSTARKER-
EINSTELLUNG
ABGLEICHE-
PUNKTE ABGLE1CHEN FUR ABB.
Wenn nicht anders angegeben, die einzeln&n Schalter wie folgt einstellen:
POKER: ON SPEAKER: BREC OUT: OFF SELECTER: PHONO
ILEERLAUFSTROM -
Einen
Gleichspannungs-
messer Uber
CPI (L)
CP2 (R)
anschlieOen.
(X09-)
VOLUME: 0
VRl (L)
VR2 (R)
(X09-)
8.8 mV (a)
(a)
3

2SO2340STX5 2SB1S316TX5 2SO 23-* 0BT *52S01531BTX5
.a riA
j— LO
C0 CBo
I—Lo
tuner rj*
*— RC
i— LO
AUX f-R 0
i- LC+°
r0
L*r: °
SYSTEM CONTROL
AUD 10 UNIT (A/3)
KA-2050R
X09-3601 -02 A/3 (P)
X09-3602-72 A/3 (M. X, T. E)
X09-3602-73 A/3 (L)
KA-3050R
X09-3601 -01 A/3 (P)
X09-3602-70 A/3 (M. X, T. E)
X09— 3602 —71 A/3 (L)
:§
<KA-3OS0RJ
L07-04 90—*5
<K A— 205 0R1
CONTROL UNIT (A/5)
KA-2050R
XI 1-3271 -01 CPI
XI 1-3270-21 (M)
XI 1-3270-71 (X)
XI 1-3270-51 (T)
,XI 1-3272-70 <E. L)
KA-3050R
XI 1-3261 -01 (PJ
XI 1-3260-21 (M)
XI 1-3260-71 (XI
XI 1-3260-51 CTJ
XI 1-3262-70 (E. L)
L07-O492-.S XII E/5
{KA-20S0RJ II
.Ajr2^

BDFHJ
PC BOARD (Component side view)
AUDIO UNIT
SUPPLY
I's;Jj Mini
i2;in 1 1
1
•miff!
1
1
1
m1
1
•-
POWER SUPPLY 111I11
DRIVE AMP
CONT.AMP
V.V. RO-
ll II -5521-
POWER AMP [L
R146 W220
1W
«»»«»• o)><a> «o'o»i
IA|IA| ir>tU>) a>t(0t
5»5* 5>5‘ 5‘5' SlSlSlSlSlX 5>5' 5'5' 5ii' VR CONT
5Refer to the schematic diagram for the values of resistors and capacitors
VOLUME
CONTROL
0
SPEAKERS

LOUDNESS
TAPE2
Refer to the schematic diagram for the values of resistors and capacitors.

OTHER AREAS (M)
AUSTRAL IA(X)
ENGLAND <T| SCAND INAVI A(L) CANADA (P)
EUROPE (E)
OTHER AREAS CM)
AUSTRAL lA(X)
ENGLAND CT) SCAND INAV IA(L) CANADA (P)
EUROPE (E)
XOS—3602-70 X09-3602-71 X09-3601-01 X09-3602-72 XO 9-3602-73XO 9- 3 6 01-0
2
Cl 28. 134
R1 27. 128
R1 67
R181
R1 93. 194
R211,212
F4, 5
A1
NJM456SD
6800*50
0.01
A1
NJM4565D
6800*50
A1
NJM4565D
6800*50
NJM4580D-D NJM4S80D-D
5600*42
0.01
9.1K
470 1
W
3.3K
5600*42
0.01
9.1K
5600*42
NO
820 1W 820 1W 820 1W
NO NO 6A125
V
T1AL250V T1AL2S0V 1A 250V T1 AL250V T1AL250V
5A125V
1A250V
W1 8. 45. 58
75~78
89. 90.1 15
W85. 86
122. 125
X09- 360X—XX Q1 ~4 2SK1 70 (BL .V) D1~30, !
ICl NJM4565D (3050R) Q5~1 02SC 2 8 78(B )57. 63~l
ICl NJM4580D-D (2050R )Q1 1—1 4:2SC 1845 (F .E) D31.32
1C2 LC 7821 N19. 20 58. 59
IC3NJM4580D-D Q15~1
8
2SA992 <F .E) D51
IC4TC 8163N Q21 .22 =2SC 4137 (V .W)
"N Q23 .24 2SC 24 58(Y .GR) D5 2—55
IC5TA840SS 52. 53 or 2SC331 1A<Q
.
R) D60.76
IC6 *PC 7805AH FQ51 2SA1048 <Y. GR)
IC7
or TA7805Sor 2SA1309A(0. R) D61 .62
NJM45650-D Q54 .55 :2SC 2003(L .K)
orHSS 104
A
RBV-602LFA
or D5SBA20F03
S5688B
Q56 .5 9
Q57, 58
060. 62. 63
Q61
UN 4112 o rDT A124E S
UN421 2orDTC 124ES
2SD863 (E .F)
2SB764 <E .F)
D60. 76 =RD5.1JS (B 2)
orHZS5 .1S(B2)
D61 .62 RD7 .5JS (B)
70~74, 85 or HZS7.5S(B2)
D75:RD20 JS (B
)
or HZS20S (B)
XI 1-32XX-XX
02 2SC2003 (L. K)
D231SSI 33orHSS1 04
XI 1-32XX-XX
(MTYPE) XI 1D/5
CANADA p
OTHER AREAS
AUSTRAL IAX~
ENGLAND T
EUROPE. SCANDINAVIA E.L
UNIT Ngg
XI 1-3261 -01
XI 1-3260-21
XI 1-3260-71
XI 1-3260-51
XI 1-3262-70
UNIT N*»C —
XI 1-3271 -01
T1.6AL250V T1 .6A
T1.6AL250V
T16AL250V ~
T1.6AL250V
XI 1-3271 -01 2A250V NO
XI 1—3270 —21 T1AL250V T1AL250V
XI 1—3270 —71 T1AL250V NO
XI 1-3270 —51 T1 AL250V NO
XI 1-3272—70 T1AL250V NO
SIGNAL LINE
GND LINE
+B LINE
-B LINE
KA-2050R/3050F
Y08-4582-70 KENWOOD

zAA
UN4212
2SA1309A
2SC331 1
A
AC
2SK170
HSS104
HSS104A
HZS5.1S
RD5.1JS
S5688B
1SSI 31
1SSI 33
LC7821N
NJM4565D
NJM4565D-D
2SA992
2SB764
2SC1845
2SC2003
2SC2878
2SD863
2SB1 531 BT*5
2SD2340BT*5
DTA124ES
DTC124ES
UN4112
2SA1048
2SC2458
TC9163N
TA8409S
TA7805S
NJM4580D-D
UPD75004CU-1 45
2SC4137 PST529C
DC voltages are as measured with ahigh impedance voltmeter.
Values may vary slightly due to variations between individual
instruments or/and units.
Les tensions c.c. doivent etre mesurees avec un voltmetre ahaute
impedance. Les valeurs peuvent diferer legerement du fait des
variations inherentes aux appareils et aux instruments de mesure
individuels.
Die angegebenen Gleichspannungswerte wurden mit einem
hochohmigen Spannungsmesser gemessen. Dabei schwanken
die MeBwerte aufground von Unterschieden zwischen einzelnen
Instrumenten order Geraten u. U. geringfugig.
CAUSION: For continued safety, replace safety critical
components only with manufacture's recommended parts (refer to
parts list). /K 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.
KA-2050R/3050R
KENWOOD
Y08-4582-70

KA-2050R/3050R EXPLODED VIEW

xNew Parts
Parts without Parts No. are not supplied.
Les articles non mentionnes dans le Parts No. ne sont pas fournls.
Teile ohne Parts No. werden nicht geliefert. No. 1
Ref. No. Address New Parts No. Description Desti- Re-
nation narks
^m*tt *Sr *a# ^ ma«/mhf± [S]
KA-2050R
601 1A *A01-2932-02 METALLIC CABINET
602 2A *A60-02 19-02 PANEL ASSY
603 2B *A22-1558-01 SUB PANEL
605 1A *A70-0597-05 REMQTE CQNTRQLLER ASSY
606 1A A09 -0094-08 BATTERY CSVER
610 2B B11-0237-14 COLOR FILTER
611 2A *B12-01 96-04 INDICATOR
612 2A B43-0287 -04 KENWOOD BADGE
B46 -0096-33 WARRANTY CARD X
-B46-0121-13 WARRANTY CARD P
_B46-0122-23 WARRANTY CARD EL
_B46-01 43-1
3
WARRANTY CARD T
_tB60-0835-00 INSTRUCTION MANUAL (ENGLISH)
*B60-0836-00 INSTRUCTION MANUAL (FRENCH) ELP
-*B60-0637-00 INSTRUCTION MANUAL (GE,DU,IT) EL
_*B60-0965-00 INSTRUCTION MANUAL (CHINESE) M
%B60-0966-00 INSTRUCTION MANUAL (SPANISH) ELM
615 1A E03-01 15-05 AC PLUG ADAPTER M
616 1C E30-0459-05 AC POWER CORD ELM
616 1C E30-0974-05 AC POWER CORD P
616 1C E30-1341-05 AC POWER CORD X
616 1C E30-141 6-05 AC POWER CORD T
J1 2C E03-01 14-05 AC OUTLET X
620 2A G1 1-0153-04 SOFT TAPE (80X12X3)
tH50-0321-04 ITEM CARTON CASE
_*HI 0-5296-02 POLYSTYRENE FOAMED FIXTURE
_*HI 0-5297 -02 POLYSTYRENE FOAMED FIXTURE
_H25 -0225-04 PROTECTION BAG (850X450X0.03) ELXMP
-H25-0232-04 PROTECTION BAG (235X350X0.03) ELXMP
H25-0651-04 PROTECTION BAG (0232 PRINTED) T
-H25-0654-04 PROTECTION BAG (0225 PRINTED) T
624 2C J02-1034-05 FOOT
625 IB J61-0033-05 WIRE BAND
626 1C J19-3331-05 UNIT HOLDER
i629 1C J42-0083-05 POWER CORD BUSHING
J61 -0307-05 WIRE BAND
630 2A K29-4215-04 KNOB INPUT SELECTOR
631 2A *K29-4382-04 KNOB VOLUME CONTROL
632 2A *K29-4384-04 KNOB BASS, TREBLE, BALANCE
i640 2C *L07-0494 -05 POWER TRANSFORMER :EL
i640 2C XL07-0495-05 POWER TRANSFORMER TX
i640 2C XL07-0497-05 POWER TRANSFORMER M
i640 2C *L07-0498-05 POWER TRANSFORMER P
A1C N08-0128-35 BINDING POST (EARTH)
B1A,1C N09-0301-05 TAPTITE SCREW (3X8)
C2A N09-1445-05 SET SCREW (M3X8)
DIB XN09-2907-05 SEMS (TAPTITE SCREWM3X14)
E2A N30-3006-46 PAN HEAD MACHINE SCREW
F1A, IB N89-3008-46 BINDING HEAD TAPTITE SCREW
G2C LN89-4006-46 BINDING HEAD TAPTITE SCREW
AUDIO UNIT
X09-3601 -01 KA-3050R P
X09-3601 -02 KA-2050R P
X09-3602-70 KA-3050R M, X, T, E
X09-3602-71 KA-3050R L
X09-3602-72 KA-2050R M, X, T, E
X09-3602-73 KA-2050R L1
CONTROL UNIT
X1 1-3260-21 KA-3050R M
XI 1-3260-51 KA-3050R T
X1 1-3260-71 KA-3050R X
X1 1-3261 -01 KA-3050R P
XI 1-3262-70 KA-3050R E, L
XI 1-3270-21 KA-2050R M]
XI 1-3270-51 KA-2050R T
XI 1-3270-71 KA-2050R X
X1 1-3271 -01 KA-2050R P
X1 1-3272-70 KA-2050R E, L
"0
>
30
H
(/>
0)
H
L: Scandinavia
Y:PX(Far East, Hawaii)
Y:AAFES(Europe)
K:USA PiCanada
T:England E: Europe
X: Australia M:Other Areas
3:KA-3050R
2:KA-2050R
Aindicates safety critical components.
KA-2050R/3050R

00 xNew Parts
Parts without Parts No. are not supplied.
Les articles non mentlonnes dans le Parts No. ne sent pas fournis.
Telie onne Parts No. werden nicht geliefert. No. 2
kNew Parts
Parts without Parts No. are not supplied.
Les articles non mentionnes dans le Parts No. ne sont pas fournis,
Teiie ohne Parts No. werden nicht geliefert. NO. 3
Ref. No. Address Ww Parts No. Description Desti- Re-
Parts. nation marks
#SB **Hi *if ®&##ma£/m & tt IS) mm
H1A :N89-4008-45 BINDING HEAD TAPTITE SCREW
Q1 ,2 *2SB1531BT*5 TRANSISTOR
,4 *i2SD234QBT*5 TRANSISTOR
KA-3050R
601 1A *A01 -2932-02 METALLIC CABINET
602 2A %A60-021 7-02 PANEL ASSY
603 2B %A22-1558-01 SUB PANEL
605 1A %A70-0597-05 REMOTE CONTROLLER ASSY
606 1A A09 -0094-08 BATTERY COVER
610 2B B11-0237 -1
4
COLOR FILTER
611 2A XB12 -0196-04 INDICATOR
612 2A B43-0287 -04 KENWOOD BADGE
-B46-0096-33 WARRANTY CARD X
“B46-0121 -13 WARRANTY CARD P
-B46-0122-23 WARRANTY CARD EL
-B46-0143-13 WARRANTY CARD T
-XB60-0835-00 INSTRUCTION MANUAL (ENGLISH)
-*B60 -0836-00 INSTRUCTION MANUAL (FRENCH) ELP
-%B60-0837-00 INSTRUCTION MANUAL (GE.DU.IT) EL
-XB60-0965-00 INSTRUCTION MANUAL (CHINESE) M
*B60-096-6-00 INSTRUCTION MANUAL (SPANISH) ELM
615 1A E03-01 15-05 AC PLUG ADAPTER M
616 1C E30-0459-05 AC POWER CORD ELM
616 1C E30 -0974-05 AC POWER CORD P
616 1C E30-1341-05 AC POWER CORD X
616 1C E30 -1416-05 AC POWER CORD T
J1 2C E03-0114-05 AC OUTLET X
618 IB F20-1 322-05 INSULATING BOARD
620 2A G11-0153-04 SOFT TAPE (80X12X3)
*H50-0320-04 ITEM CARTON CASE
-XH10-5296-02 POLYSTYRENE FOAMED FIXTURE
-XH10-5297-02 POLYSTYRENE FOAMED FIXTURE
-H25-0225-04 PROTECTION BAG (850X450X0.03) ELXMP
~H25-0232-04 PROTECTION BAG (235X350X0.03) ELXMP
-H25-0651-04 PROTECTION BAG (0232 PRINTED) T
H25-0654-04 PROTECTION BAG (0225 PRINTED) T
624 2C J02-1034-05 FOOT
625 IB J61-0033-05 WIRE BAND
626 1C J19-3331 -05 UNIT HOLDER
629 1C J42-0083-05 POWER CORD BUSHING
-J61-0307-05 WIRE BAND
630 2A K29-4215-04 KNOB INPIUT SELECTOR
631 2A XK29-4382-04 KNOB VOLUME CONTROL
632 2A XK29-4384-04 KNOB BASS, TREBLE, BALANCE
633 1C i
XK29-4385-04 KNOB MM/MC
640 2C XL07-0489-05 POWER TRANSFORMER EL
640 2C XL07-0490-05 POWER TRANSFORMER TX
640 2C XL07-0492-05 POWER TRANSFORMER M
640 2C XL07-0493-05 POWER TRANSFORMER P
A1C N08-0128-35 BINDING POST (EARTH)
Ref. No. Address New Parts No, Descr ipt ion Desti- Re-
Parts nation
*hh *mit mff ®ft *m3P a«/«i± IS] *
m
B1A, 1C N09-0301-05 TAPTITE SCREW (3X8)
C2A N09- 1445-05 SET SCREW (M3X8 )
DIB *N09-2907-05 SEMS (TAPTITE SCREWM3X14)
E2A N30-3006 -46 PAN HEAC MACHINE SCREW
F1A, IB N89-3008-46 BINDING HEAD TAPTITE SCREW
G2C N89-4006-46 BINDING HEAD TAPTITE SCREW
H1A N89-4008-45 BINDING HEAD TAPTITE SCREW
91 ,2 *2SB1 53 1BT*5 TRANSISTOR
Q3 ,4 *2SD2340BT*5 TRANSISTOR
AlJDIO UNIT (X D9-360X-XX)
Cl ,2 CF92FV1 HI OIK MF 100PF K
C3 ,
4
CF92FV1 H471
J
MF 470PF J3
C5 ,
6
CE04KW1V100M ELECTRO 10UF 35WV 2
C7 -10 CF92FV 1H102
J
MF 1000PF J2
C7 -10 CF92FV1 HI 22J MF 1200PF J3
Cll ,12 CC45FSL 1H390
J
CERAMIC 39PF J3
C13,14 CF92FV1H1B2J MF 1800PF J2
Cl 3,14 CF92FV1 H332J MF 3300PF J3
CIS ,16 CEQ4KW1E101M ELECTRO 100UF 25WV 2
CIS ,16 C90-1951-05 ELECTRO 33G0UF 6. 3WV 3
C17,18 CF92FV1 HI 23J MF 0.012UF J2
Cl 7,18 CF92FV1 H393J MF 0.039UF J3
Cl 9,20 CF92FV1 HI 13J MF 0.011UF J3
Cl 9,20 CF92FV1H332J MF 3300PF J2
C21 ,22 CE04KW1 H220M ELECTRO 22UF 50WV
C23 ,24 CF92FV1 H272J MF 2700PF J2
C23 ,24 CF92FV1 H392J MF 3900PF J3
C25 -38 CF92FV1 HI 51
K
MF 150PF K
C39 ,40 CE04KW1 V4R7M ELECTRO 4.7UF 35WV
C41 ,42 *C90-1 971-05 ELECTRO 10UF 50WV
C43 ,44 CF92FV1 HI 01
K
MF 100PF K
C45 ,46 CF92FV1 H331
K
MF 330PF K
C47 ,48 CF92FV1 H683J MF 0. 068UF J
C49 ,50 *C90-1971-05 ELECTRO 10UF 50WV
C51 ,52 CF92FV1H121K MF 120PF K
C53 ,54 CF92FV1H221K MF 220PF K
C59 ,60 CC45FSL2H390J CERAMIC 39PF J
C61,62 CE04KW1H101M ELECTRO 100UF 50WV
C63 ,64 CF92FV1 HI 03J MF 0.010UF J
C65 ,66 CE04KW1 VI 00M ELECTRO 10UF 35WV
C67 ,68 CC45FSL1 H050C CERAMIC 5.0PF C
C69 ,70 *C90-1 972-05 ELECTRO 100UF 6.3WV
C71-78 CEQ4KW1H010M ELECTRO 1.0UF 50WV
C79 ,80 CK45FB 1H222K CERAMIC 2200PF K
C81 -88 CF92FV1 HI 04J MF 0. 10UF J
C89 -92 CF92FV1 H472J MF 4700PF J
C93 -98 CK45FB 1HI 02K CERAMIC 1000PF K
C99 ,100 CF92FV1 HI 03
J
MF Q.010UF J
Cl 11-1 13 CK45FF1 HI 03Z CERAMIC 0.010UF Z
Cl 14, 115 CC45FSL1H221
J
CERAMIC 220PF J
Cl 16 ,117 *C90-1 963-1
5
ELECTRO 5600UF 42WV 2
Cl 16, 11
7
*C90- 1968-1
5
ELECTRO 6800UF 50WV 3
Cl 1
8
CE04KW1 El 02M ELECTRO 1000UF 25WV
Cl 1
9
CK45FF1 HI 03Z CERAMIC 0.010UF Z
L: Scandinavia KtUSA PiCanada 3:KA-3050R LScandinavia K:USA fcCanada 3:KA-3050R
Y:PX{Far East, Hawaii) T: England E: Europe 2:KA-2050R Y:PX(Far East, Hawaii) TiEngland E:Europe 2:KA-2050R
Y.-AAFES(Europe) X:Australia M:Other Areas Aindicates safety critical components. Y:AAFES(Europe) X:Australia M: Other Areas Aindicates safety critical components.
7\
A-2050R/3050R

xNew Parts
Parts without Parts No. are not supplied.
Les articles non mentionnes dans le Parts No. ne sont pas fournis.
Teiie ohne Parts No. werden nicht geliefert. No. 4
Ref. No.
*m*^
Address New
Parts
W. «r
Parts No.
g? ft * ^ Description mft m
Desti- Re-
nation marks
f± 1*3
Cl 20 CF92FV1H104J MF 0. 10UF J
Cl 21 CE04KW1 V100M ELECTRQ 10UF 35WV
C122 CE04KW1 HOI 0M ELECTRO 1.0UF 50WV
C123 CE04KW1 A47QM ELECTRO 47UF 10WV
Cl 24 CK45FF1H223Z CERAMIC D.022UF Z
C125-127 CEQ4KW1 VI 00M ELECTRO 10UF 35WV
C128 CK45FF1H103Z CERAMIC 0.010UF ZELTXM
Cl 29 C90-191 7-05 ELECTRO 100UF 16WV
Cl 30 CE04KW1H010M ELECTRO 1.0UF 50WV
Cl 31 ,132 CF92FV1H1 03J MF 0.010UF J
C133 CE04KW1 H01 0M ELECTRO 1.OUF 50WV
C134 CK45FF1H103Z CERAMIC 0.010UF ZELTXM
Cl 35 CF92FV1 HI 03J MF 0.01 OUF J
Cl 36 ,137 *C90-1 971 -05 ELECTRO 10UF 50WV
C138, 139 CE04KW1E101
M
ELECTRO 100UF 25WV
C140, 141 CE04KW1C470M ELECTRO 47UF 16WV
C142, 143 CE04KW1 HI 01
M
ELECTRQ 100UF 50 WV
C144, 145 CF92FV1H103J MF 0.01 OUF J
C146, 147 CC45FSL1 HI 01
J
CERAMIC 100PF J
Cl 48 ,149 CE04KW1 A101
M
ELECTRO 100UF 10WV
C150, 151 CE04KW1 VI 00M ELECTRO 10UF 35WV
Cl 52, 153 CE04KW1 E221
M
ELECTRO 220UF 25WV
C154 CK45FF1H103Z CERAMIC 0.01 OUF ZELTXM 3
C155, 156 CE04KW1 VI 00M ELECTRO 10UF 35WV
C157, 158 CE04KW1 HOI OM ELECTRO 1.OUF 50WV
Cl 59 CC45FSL1H221
J
CERAMIC 220PF J
C160 CE04KW1 HOI OM ELECTRO 1.OUF 50WV
J1 Ell-0188-05 MINIATURE PHONE JACK SYNCRO
J2 Ell-0208-05 PHONE JACK PHONES
J3 El 3-0235 -05 PHONO JACK PHONO
J4 E13-0634-05 PHONO JACK CD/TUNER/AUX
J5 E13-0820-05 PHONO JACK TAPE/DAT MONITOR
J7 *E70-0018-05 SCREW TERMINAL BOARD SPEAKRES ETXMP
J7 *E70-001 9-05 SCREW TERMINAL BOARD SPEAKERS L
kF4 ,5 F04-5022-05 FUSE <UL) (125V 5A UL) P 2
,F4 ,5 F05-6029-05 FUSE (UL) (125 V6A
)
P 3
,F6 F04-1026-05 FUSE (UL) (250V 1A) P
kF6 F06-1 022-05 FUSE (SEMKO
)
(250V T1A) ELTXM
_J11-0098-05 WIRE CLAMPER
CN7 -12 J13-0075-05 FUSE CLIP P
CN1 1,12 J13-0075-05 FUSE CLIP ELTXM
LI ,2 L40-101 1-47 SMALL FIXED INDUCTOR 100UH, K
)
3
L3 ,4 L39-0085-05 PHASE COMPENSATION COIL
111 ,12 L40-101 1-17 SMALL FIXED INDUCTOR(IOOUH.K)
L15,16 L40-221 1-17 SMALL FIXED INDUCT0R(220UH,K)
CPI ,2 R90-01 87 -05 MULTI-COMP 0.22X2 K5W
R23 ,24 RN14BK2C2613FTS RN 261
K
F1/6W 2
R23 ,24 RN14BK2C8252FTS RN 82. 5K F1/6W 3
R25 ,26 RN14BK2C681 1FTS RN 6.81K F1/6W 3
Rill, 112 RD14AB2E472JTS FL-PROOF RD 4. 7K J1/4W
R1 13-1 18 RD1 4AB2E680JTS FL-PROOF RD 68 J1/4W
R119, 120 RD14AB2E1 OOJTS FL-PROOF RD 10 J1/4W
R129-132 RD14AB2E1Q1 JTS FL-PROOF RD 100 J1/4W
i
LScandinavia KtUSA fcCanada
Y:PX(Far East, Hawaii) T:England tEurope
Y:AAFES(Europe) X: Australia M:Other Areas /f\ indicates safety
3:KA-3050R
2:KA-2050R
critical components
CD
KA-2050R/3050R

xNew 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 nlcht geliefert. No. 6
Ref. No. Address New Parts No. Description IDesti- Re-
Parts nation marks
#SB # # tt *ff 85 &*%aa£/«f± IS]
IC3 NJM4580D-D IC(OP AMP X2)
1
!
IC4 TC9163N IC (BILATERAL SWITCH X16)
IC5 TA8409S IC (MOTOR CONTROL
)
IC6 TA7805S ICC VOLTAGE REGULATOR/ +5 V
)
IC6 UPC7805AHF ICC VOLTAGE REGULATOR/ +5V)
IC7 NJM4565D-D ICCOP AMP X2)
Q1 -4 2SK 17 0 (BL) FET 3
01 -4 2SK 170 (V) FET 3
Q5 -10 2SC2878CB) TRANSISTOR
911 -14 2SC1 845 (F, E
)
TRANSISTOR
915 -18 2SA992( F,E)TRANSISTOR
919 ,20 2SC 1845( F,E
)
TRANSISTOR
921 ,22 2SC41 37 (V,W
)
TRANSISTOR
923 ,24 2SC2458(Y,GR) TRANSISTOR
923 ,24 2SC331 1AC9, R) TRANSISTOR
951 2SA1 048 (Y,GR >TRANSISTOR
951 2SA1 309A(Q, R
)
TRANSISTOR
952 ,53 2SC2458 (Y,GR )TRANSISTOR
952 ,53 2SC331 1A(Q, R)TRANSISTOR
954 ,55 2SC2003( L,K>TRANSISTOR
956 DTA124ES DIGITAL TRANSISTOR
956 UN4112 DIGITAL TRANSISTOR
957 ,58 DTC124ES DIGITAL TRANSISTOR
957 ,58 UN4212 DIGITAL TRANSISTOR
959 DTA124ES DIGITAL TRANSISTOR
959 UN4112 DIGITAL TRANSISTOR
960 2SD863 (E,F
)
TRANSISTOR
961 2SB764( E,F
)
TRANSISTOR
962 .63 2SD863 (E.F
)
TRANSISTOR
CONTROL UNI-r(X11-32XX-XX)
D
1
B30-1291-05 LED(LN21CPSLXCV)-(TA4)
)
D24-22 B30-1291-05 LEDCLN21CPSLX(V)-(TA4)
)
Cl ,2 CE04KW1 HR33M ELECTRO 0. 33UF 50WV
C3 -8 CF92FV1 HI 01K MF 100PF K
C9 -12 *C90-1 969-05 ELECTRO 0. 33UF 50WV
Cl 3-16 tC90-1970-05 ELECTRO 10UF 35 WV
Cl 7-20 CF92FV1H223J MF 0.022UF J
C21 .22 CE04KW1 H01 0M ELECTRO 1.0UF 50WV
C23 ,24 CF92FV1H561
J
MF 560PF J
C51 CE04KW1 E470M ELECTRO 47UF 25WV
C52 CF92FV1 HI 03J MF 0.010UF J
C53 CE04KW1E47QM ELECTRO 47UF 25WV
C54 CF92FV1H103J MF 0.010UF J
C55 ,56 CE04KW1HR33M ELECTRO 0. 33UF 50WV
C57 C90 -3244-05 ELECTRO 10UF 35WV
C58 CK45FF1H1 03Z CERAMIC 0. 01GUF Z
C59 C90-3256-05 ELECTRO 4.7UF 50WV
C60 C90-3253-05 ELECTRO 1UF SOWV
C61 C90-3244-05 ELECTRO 10UF 35WV
C62 CE04KW1H010M ELECTRO 1.OUF 50WV
C63 CK45FF 1H1 03Z CERAMIC 0.01 OUF Z
C64 CE04KW1 A1 01
M
ELECTRO 100UF 10WV
C65 C90-1 827-05 BACKUP Q.047F 5. 5WV
C66 ,67 _C91 -1439-05 FILM 0.01UF 250VAC 1
L: Scandinavia
Y:PX(Far East, Hawaii)
YrAAFES(Europe)
KrUSA P; Canada
T:England EEurope
X;Australia M: Other Areas
3:KA-3050R
2:KA-2050R
Aindicates safety critical components.
xNew Parts
Parts without Parts No. are not supplied.
t_es articles non mentionnes dans le Parts No. ne sont pas fournis.
Teile ohne Parts No. werden nlcht geliefert. No. 7
Ref. No.
*SB ##
Address
at m.
New
Parts
If
Parts No.
35 &m#
Descr ipt ion
35 a*/mt*
Desti-
nation
f± ft
Re-
marks
m*t
J1 *E03-0131-05 AC OUTLET ELM
J2 E03-01 11-05 AC CUTLET P
J3 -5 E03-0109-05 AC CUTLET T
FI F04-2025-05 FUSE CUD <250 V2A) P2
FI F05 -1623-05 FUSE (SEMKC )(250V T1.6A) ELTX 3
FI F05-4028-05 FUSE (UL) (125V 4A) P3
FI F06-1022-05 FUSE (SEMKC) (250V T1A> ELTX 2
FI ,2 F05- 1623-05 FUSE (SEMKC) (250V T1.6A) M3
FI ,2 F06-1 022-05 FUSE (SEMKC) (250V T1A) M2
F3 F05-2525-05 FUSE (SEMKC) (250V T2.5A) EL
CN1 -4 J1 3-0075-05 FUSE CLIP M
CN1 ,2 J1 3-0075-05 FUSE CLIP ELTXP
CN5 ,6 J1 3-0075-05 FUSE CLIP EL
LI ,2 L40-1 021 -14 SMALL FIXED INDUCTCR (1.OMH ,K
)
XI L78 -0209-05 RESCNATCR 4. 194MHZ
R89 RD1 4AB2E680JTS FL-PRCQF RD 68 J1/4W
VR1 ,2 R06-3061-05 POTENTIOMETER BASS, TRESLE
K1 S76-0009-05 MAGNETIC RELAY
SI -5 S40-1064-05 PUSH SWITCH KEY BCARD 3
SI ,2S40-1 064-05 PUSH SWITCH PCWER ,TAPE2/DAT 2
S4 ,
5
S40-1064-05 PUSH SWITCH SCURCE DIR, LCUDNES 2
S7 S31-2322-05 SLIDE SWITCH VCLTAGE SELECTCR M
S6 *T99-0526-05 RCTARY ENCCDER INPUT SELECTCR
D3 -8 HSS104 DICDE
D3 -8 1SSI 33 DICDE
D9 HZS5 .1SCB2) ZENER DICDE
D9 RD5. 1JSCB2) ZENER DICDE
DIO -13 HSS104 DICDE
DIO -13 1SS133 DIODE
D23 HSS104 DIODE
D23 1SSI 33 DICDE
IC1 *UPD75004CU-1 45 IC (MICRCPRCCESSCR
)
IC2 NJM4565D-D IC< OP AMP X2)
IC3 PST529C ICC SYSTEM RESET)
91 2SC2458C Y,GR
)
TRANSISTOR
91 2SC331 1A(9, R
)
TRANSISTOR
92 2SC2003 CL,K
)
TRANSISTOR
A1 W02-1 046-05 ELECTRIC CIRCUIT MODULE
LScandinavia
Y:PX{Far East, Hawaii)
Y:AAFE$(Europe)
ICUSA P:Canada
T:England E:Europe
X:Australia M:Other Areas
3:KA-3050R
2:KA-2050R
Aindicates safety critical components
A-2050R/3050R

KA-2050R/3050R
SPECIFICATIONS (Fo,U.K.and Europe)
KA-3050R KA-2050R
Continuous rated power output
(DIN) 1kHz, at 8Q55 W+55 W
at 4U70 W+70 W
(IEC/NF) From 63 Hz to 12,500 Hz, 0.7% T.H.D.
at 8Q55 W+55 W
at 4Q70 W+70 W
Dynamic power 65 W(8 Q)
70 W(6 Q)
85 W(4 Q)
100 W(2 Q)
Damping factor .40 (50 Hz)
Total harmonic distortion 0.05%
(20 Hz ~20,000 Hz, 45 W, 8ft)
0.02% (1 kHz, 45 W, 8ft)
Intermodulation distortion 0.05% (45 W, 8ft)
(70 Hz :7 kHz =4:1)
Frequency response
CD 5Hz -90 kHz, +0 dB, -3 dB
PHONO 'RIAA* response 20 Hz -20 kHz,
+0.3 dB, -0.3 dB
Maximum input level
PHONO (MM) 130 mV, 0.5% T.H.D. at 1kHz
PHONO (MC) 10 mV, 0.5% T.H.D. at 1kHz
Signal to noise ratio
PHONO (MM) 87 dB (IHF ’66)
82 dB (IHF *78)
PHONO (MC) 67 dB (IHF ’66)
75 dB(IHF78)
CD/TUNER/AUX/TAPE 101 dB (IHF ’66)
85 dB (IHF 78)
PHONO (MM) 60 dB (DIN, 50 mW output)
CD/TUNER/AUX/TAPE 60 dB (DIN, 50 mW output)
Input sensitivity/impedance
PHONO (MM) 2.5 mV/47 kft
PHONO (MC) 0.2 mV/100 ft
CD/TUNER/AUX/TAPE 200 mV/47 kft
Tone control
BASS ±10 dB (at 100 Hz)
TREBLE ±10 dB (at 10 kHz)
Loudness control
VOLUME at -30 dB level +6 dB (100 Hz),
+3 dB (10 kHz)
Output fevel/impedance
TAPE REC 200 mV/1 kft
General
Power consumption
AC outlets
SWITCHED
Dimensions
Weight (net)
160 W
.3; (Total 200 Wmax.)
W: 440 mm (17-5/16")
H: 136 mm (5-3/8")
D: 350 mm (13-3/4°)
6.9 kg (15.2 lb)
Continuous rated power output
(DIN) 1kHz, at 8±2
at 4ft
35 W+35 W
45 W+45 W
(IEC/NF) From 63 Hz to 12,500 Hz, 0.7% T.H.D.
at 8ft
at 4ft
Dynamic power
Damping factor
35 W+35 W
40 W+40 W
....45 W(8 ft)
50 W(6 ft)
60 W(4 ft)
70 W(2 ft)
40 (50 Hz)
Total harmonic distortion 0.05%
(20 Hz -20,000 Hz, 30 W, 8ft)
0.02% (1 kHz, 30 W, 8ft)
Intermodulation distortion 0.05% (30 W, 8ft)
(70 Hz :7 kHz =4:1)
Frequency response
CD 5Hz -90 kHz, +0 dB, -3 dB
PHONO 'RIAA' response 20 Hz ~20 kHz,
+0.3 dB, -0.3dB
Maximum input level
PHONO (MM) 130 mV, 0.5% T.H.D. at 1kHz
Signal to noise ratio
PHONO (MM) 77 dB (IHF '66)
80 dB (IHF 78)
CD/TUNER/AUX/TAPE 101 dB (IHF ’66)
85 dB (IHF 78)
PHONO (MM) 58 dB (DIN, 50 mW output)
CD/TUNER/AUX/TAPE 60 dB (DIN, 50 mW output)
Input sensitivity/impedance
PHONO (MM) 2.5 mV/47 kft
CD/TUNER/AUX/TAPE 200 mV/47 kft
Tone control
BASS ±10 dB (at 100 Hz)
TREBLE ±10 dB (at 10 kHz)
Loudness control
VOLUME at -30 dB level +6 dB (100 Hz),
+3 dB (10 kHz)
Output level/impedance
TAPE REC 200 mV/1 kft
General
Power consumption
AC outlets
SWITCHED
Dimensions
Weight (net)
120 W
.3; (Total 200 Wmax.)
W: 440 mm (17-5/16")
H: 136 mm (5*3/8")
D: 350 mm (13*3/4")
6.0 kg (13.2 lb)
21

KA-2050R/3050R SPECIFICATIONS (For other countries)
KA-3050R KA-2050R
Continuous rated power output
(IHF '66) From 20 Hz to 20,000 Hz 0.05% T.H.D.
at 8ft 45 W+45 W
(IEC/NF) From 63 Hz to 12,500 Hz, 0.7% T.H.D.
at 8ft 55 W+55 W
at 4ft 70 W+70 W
Dynamic power 65 W(8 ft)
70 W(6 ft)
85 W(4 ft)
100 W(2 ft)
Damping factor 40 (50 Hz)
Total harmonic distortion 0.05%
(20 Hz -20,000 Hz, 45 W, 8ft)
0.02% (1 kHz, 45 W, 8ft)
Intermodulation distortion 0.05% (45 W, 8ft)
(70 Hz :7 kHz =4:1)
Frequency response
CD 5Hz ~90 kHz, +0 dB, -3 dB
PHONO 'RIAA' response 20 Hz -20 kHz,
+0.3 dB, -0.3 dB
Maximum input level
PHONO (MM) 130 mV, 0.5% T.H.D. at 1kHz
PHONO (MC) 10 mV, 0.5% T.H.D. at 1kHz
Signal to noise ratio
PHONO (MM) 87 dB (IHF *66)
82 dB (IHF 78)
PHONO (MC) 67 dB (IHF '66)
75 dB (IHF 78)
CD/TUNER/AUX/TAPE 101 dB (IHF *66)
85 dB (IHF 78)
Input sensitivity/impedance
PHONO (MM) 2.5 mV/47 kft
PHONO (MC) 0.2 mV/100 ft
CD/TUNER/AUX/TAPE 200 mV/47 kft
Tone control
BASS ±10 dB (at 100 Hz)
TREBLE ±10 dB (at 10 kHz)
Loudness control
VOLUME at -30 dB level +6 dB (100 Hz),
+3 dB (10 kHz)
Output levet/impedance
TAPEREC 200 mV/1 kft
General
Power consumption 160 W
AC outlets
SWITCHED 3; (Total 200 Wmax.)
For Australia 2; (Total 200 Wmax.)
Dimensions W: 440 mm (17-5/16")
H: 136 mm (5-3/8")
D: 350 mm (13-3/4")
Weight (net) 6.9 kg (15.2 lb)
Kenwood follows apolicy of continuous advancements in development.
For this reason specifications may be changed without notice.
Kenwood poursuit une politique de progres constants en ce qui concerne le developpement.
Pour cette raison, les specifications sont sujettes &modifications sans preavis.
Kenwood strebt standige Verbesserungen in der Entwicklung an.
Daher bleiben Anderungen der technischen Daten jederzeit vorbehalten.
Note:
Component and circuitry are subject to modification to insure best opera-
tion under differing local conditions. This manual is based on the general
market (M) standard, and provides information on regional circuit modifi-
cation through use of alternate schematic diagrams, and information on
regional component variations through use of parts list.
Continuous rated power output
(IHF *66) From 20 Hz to 20,000 Hz 0.05% T.H.D.
at 8ft 30 W+30 W
(IEC/NF) From 63 Hz to 12,500 Hz, 0.7% T.H.D.
at 8ft 35 W+35 W
at 4ft 40 W+40 W
Dynamic power 45 W(8 ft)
50 W(6 ft)
60 W(4 ft)
70 W(2 ft)
Damping factor 40 (50 Hz)
Total harmonic distortion 0.05%
(20 Hz -20,000 Hz, 30 W, 8ft)
0.02% (1 kHz, 30 W, 8ft)
Intermodulation distortion 0.05% (30 W, 8ft)
(70 Hz :7 kHz =4:1)
Frequency response
CD 5Hz -90 kHz, +0 dB, -3 dB
PHONO 'RIAA' response 20 Hz -20 kHz,
+0.3 dB, -0.3 dB
Maximum input level
PHONO (MM) 130 mV, 0.5% T.H.D. at 1kHz
Signal to noise ratio
PHONO (MM) 77 dB (IHF '66)
80 dB (IHF 78)
CD/TUNER/AUX/TAPE 101 dB (IHF *66)
85 dB (IHF 78)
Input sensitivity/impedance
PHONO (MM) 2.5 mV/47 kft
CD/TUNER/AUX/TAPE 200 mV/47 kft
Tone control
BASS ±10 dB (at 100 Hz)
TREBLE ±10 dB (at 10 kHz)
Loudness control
VOLUME at -30 dB level +6 dB (100 Hz),
+3 dB (10 kHz)
Output level/impedance
TAPE REC 200 mV/1 kft
General
Power consumption 120 W
AC outlets
SWITCHED 3; (Total 200 Wmax.)
For Australia 2; (Total 200 Wmax.)
Dimensions W: 440 mm (17-5/16")
H: 136 mm (5-3/8")
D: 350 mm (13-3/4")
Weight (net) 6.0 kg (13.2 lb)
KENWOOD CORPORATION
Shionogi Shibuya Building, 17-5, 2-chome Shibuya, Shibuya-ku. Tokyo 150. Japan
KENWOOD U.S.A. CORPORATION
2201 East Dominguez Street, Long Beach CA 90810;
550 Clark Drive, Mount Olive, NJ 07828, U.S.A.
KENWOOD ELECTRONICS CANADA INC.
6070 KESTREL ROAD MISSISSAUGA, ONTARIO L5T1S8
TRIO-KENWOOD U.K. LIMITED
KENWOOD House, Dwight Road, Watford, Herts., WD1 8EB United Kingdom
KENWOOD ELECTRONICS BENELUX N.V.
Mechelsesteenweg 418 B-1930 Zaventem, Belgium
KENWOOD ELECTRONICS DEUTSCHLAND GMBH
Rembrucker-Str. 15, 6056 Heusenstamm, Germany
TRIO-KENWOOD FRANCE S.A.
13 Boulevard Ney. 75018 Paris, France
KENWOOD LINEAR S.p.A.
20125, MILANO-VIA ARBE, 50, ITALY
KENWOOD ELECTRONICS AUSTRALIA PTY. LTD (A.C.N ooi 499 074)
P.O. Box 504, 8Figtree Drive, Australia Centre, Homebush, N.S.W. 2140, Australia
KENWOOD &LEE ELECTRONICS, LTD.
Wang Kee Bulding, 4th Floor, 34-37. Connaught Road. Central. Hong Kong