Kenwood KD-291R User manual

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AUTOMATIC RETURN TURNTABLE
KD-291R/291RC
SERVICE MANUAL
© 2000-11/B51-4279-10 (K/K) 732
*Refer to parts list on page 8 .
Tone arm ass'y
(J91-0399-08)
Arm elevation
(J99-0501-08)
Handle lifter
(K27-2027-08)
Cushion(Dust cover)x2
(G11-2059-08)
Knob(CUT)
(K27-2026-08)
Arm stand ass'y
(J19-3416-08)
Knob(SPEED)
(K27-2028-08)
Adaptor EP
(W01-0329-04)
Platter
(D02-0104-08)
Rubber sheet
(G16-0775-08)
Hinge ass'yx2
(J50-0135-08)
Dust cover ass'y
(A53-1301-08)
Cord AC *
(E30-)
Motor
(T42-0587-08)
Cord phono
(E30-2649-08)
Elevator
(D12-0130-08)
Arm feed
(D10-3140-08)

KD-291R/291RC
2
MECHANISM DESCRIPTION
Operation
1. Motor ON
When the tonearm is moved down on the surface of the
record, the feed arm ~moves in the direction of an arrow
so that SW2 turns ON to start the motor.
2. Tonearm Return
When the tonearm arrives at the end of the record, an
operation as shown below is performed. Thus, the gear of
the center shaft is engaged with the ring gear to start
counterclockwise rotation.
By the ring gear ass'y alone, the tonearm actuator moves
in the direction of arrows to return the tonearm.

KD-291R/291RC
3
MECHANISM DESCRIPTION
3. Cueing
a. For manual return, the lifter and the elevator work.
b. For auto return, the tonearm actuator and the elevator
work.

KD-291R/291RC
4
ADJUSTMENT / REGLAGES / ABGLEICH
1. Auto-return position adjustment
For this, adjust the cam as shown on the right.
(After adjustment, lock it.)
2. Speed adjustment
First, adjust the 33 RPM by VR1, then the 45 RPM by VR2.
1. Ajustement de la position de retour automatique
Pour ceci, ajuster la came comme indiqué sur la droite.
(Après l'ajustement, la verrouiller.)
2. Ajustement de la vitesse
D'abord ajuster les 33 tours avec RV1 puis les 45 tours avec
RV2.
1. Einstellung der automatischen Rückkehrposition
Hierfür den Nocken wie rechts abgebildet einstellen.
(Nach der Einstellung arretieren.)
2. Drehzahl-Einstellung
Zuerst 33 Upm mit VR1 und dann 45 Upm mit VR2 ein-
stellen.
ADJUSTMENT
REGLAGES
ABGLEICH

5
ACEBD
2
1 3 5 7
4
6
PC BOARD (Component side view)
AC
120V
220/240V
MOTOR
SPEED
SW1
GND
LEAF SW2
Lch
(4, 5)
(2, 3)
( 2 )
PNK
RED
GRN
BLU
WHT
YEL
YEL
WHT
BLK
( 3 )
( 4 )
( 5 )
LR
Rch
TONE ARM
WHT
YEL
YEL
YEL
BLK
BLK
RED
FRONT
RED
WHT
BLU
BLK
RED
RED
YEL
BLU
Refer to the schematic diagram for the value of resistors and capacitors.

ACEBD
2
1 3 5 7
4
6
KD-291R/291RC
Y21-3250-10
DC voltages are as measured with a high impedance voltmeter at 33-1/3 r.p.m. mode. Values may vary slightly due to variations between individual instru- ments or/and units.
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.
MOTOR ASS'Y (KH-JM0221M6)
D101
D102 D101
D104
D103
IN4148
AN6652
MM16S2
-RWH
R101
270
1
24
3
IC 1
M
BA
C102
10u 16
C101
1000u
16
SW2
POWER PCB ASS'Y
IN4001x4
PT 101
AC 120V 60Hz
(K,P) TYPE
CARTRIDGE
GND LINE
+ B LINE
(X,T,E) TYPE
R 101
R 102
300
300
300 300
VR 1
VR 2
33RPM
45RPM
SW1
Y TYPE
SW1 OFF : 33 rpm
ON : 45 rpm
M TYPE
T 200mA 250V T 200mA 250V
T 200mA 250V
AC 220V SW3 AC 110V
AC 110-120V /
220-240V
50/ 60Hz
AC 110-120V /
220-240V
50/ 60Hz
SW3 AC110V
AC220V
X,T : 240V / 50Hz
E : 220V / 50Hz
T •F
T•F
+
+

Parts with exploded numbers larger than 700 are not supplied.
1
2
3
AB
7
EXPLODED VIEW
KD-291R/291RC K

C KD-291R/291RC
8
PARTS LIST
Ref. No Add-
ress
New
Parts
Parts No. Description Desti-
nation Re-
marks
698 2B ✽L07-0321-08 POWER TRANSFORMER M
698 2B ✽L07-0322-08 POWER TRANSFORMER Y
698 2B ✽L07-0323-08 POWER TRANSFORMER X
698 2B ✽L07-0324-08 POWER TRANSFORMER E
699 2B ✽J13-0078-08 FUSE CLIP
- B46-0092-03 WARRANTY CARD K
- B46-0094-03 WARRANTY CARD Y
- B46-0095-03 WARRANTY CARD Y
- B46-0096-13 WARRANTY CARD X
- B46-0121-03 WARRANTY CARD P
- B46-0122-13 WARRANTY CARD E
-✽B58-0513-08 CAUTION CARD Y
-✽B59-0167-08 SUB-INSTRUCTION MANUAL(E/F/D) KPYXE
-✽B59-0168-08 SUB-INSTRUCTION MANUAL(E/S/C) M
-✽B60-0449-08 INSTRUCTION MANUAL(ENGLISH) KYX
-✽B60-0450-08 INSTRUCTION MANUAL(FRENCH) P
-✽B60-0451-08 INSTRUCTION MANUAL(GERMANY) E
-✽B60-0452-08 INSTRUCTION MANUAL(E/S/C) M
-✽H10-3840-08 POLYSTYRENE FOAMED FIXTURE
- H25-0232-04 P.E.BAG/MANUAL
-✽H25-0641-08 P.E.BAG/SET
-✽H25-0642-08 P.E.BAG
-✽H50-0061-08 ITEM CARTON BOX(KD-291RC) K
-✽H50-0062-08 ITEM CARTON BOX(KD-291R) PMYXE
A✽N09-2826-08 SCREW
B✽N09-2822-08 SCREW
C✽N09-2823-08 SCREW
D✽N09-2818-08 SCREW
E✽N09-2819-08 SCREW
F✽N09-2820-08 SCREW
G✽N09-2821-08 SCREW
H✽N09-2824-08 SCREW MOTOR SETTING
BM 1A ✽D16-0317-08 BELT RUBBER
PU 1A ✽J91-0399-08 TONEARM ASSY
SW1 3B ✽S70-0001-08 S/W(SPEED)
SW2 2B ✽S74-0002-08 S/W LEAF(POWER)
SW3 2B ✽S62-0004-08 V/SELECTOR S/W (AC220V/110V) MY
DM 2B ✽T42-0587-08 MOTOR
C101 CE04KW1C102J ELECTRO 1000UF 16WV
F1 2B ✽F50-0008-08 FUSE (T200MA/250V) YMX
VR1 ,2 ✽R12-0119-08 TRIMMING POT. 300-OHM,SPEED
D101-104 1N4001 DIODE
✽ 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. 2
L : Scandinavia K : USA P : Canada R : Mexico C : China I : Malaysia
Y : PX(Far East,Hawaii) T : England E : Europe G : Germany V : China(Shanghai)
Y : AAFES(Europe) X : Australia Q : Russia H : Korea M : Other Areas indicates safety critical components .
Ref. No Add-
ress
New
Parts
Parts No. Description Desti-
nation
Re-
marks
601 1A,1B ✽J50-0135-08 HINGE ASSY
602 1A ✽G16-0775-08 RUBBER SHEET
603 1A ✽D02-0104-08 PLATTER
605 2B ✽G11-2058-08 CUSHION(MOTOR)
606 2A,2B ✽N19-1257-08 WASHER PLAIN
607 3B ✽B03-2730-08 PLATE FRONT
608 2A ✽N19-1258-08 POLY WASHER
609 1A ✽G09-0615-08 STOPPER PLATTER
610 1A W01-0329-04 ADAPTER EP
613 2A,3A ✽G11-2059-08 CUSHION(DUST COVER)
615 3B ✽K27-2028-08 KNOB(SPEED)
616 2B ✽D10-3137-08 LINK CUT
617 2B ✽G01-3357-08 SPRING BUTTON
618 2B ✽K27-2026-08 KNOB(CUT)
619 2B ✽J19-3414-08 STOPPER CORD
620 3A ✽J02-1063-08 FOOT RUBBER
621 3A ✽G01-3358-08 SPRING(ELEVATION)
622 3A ✽D10-3136-08 LINK
623 2A ✽D10-3138-08 LEVER REJECT
624 2B ✽K27-2027-08 HANDLE LIFTER
625 2B ✽J21-5730-08 HOLDER LEVER
630 1B ✽D12-0130-08 ELEVATION
631 2A ✽D10-3139-08 ARM ACTUATION
632 2A ✽G01-3359-08 SPRING(ACTUATING)
633 1B ✽G01-3360-08 SPRING(ELEVATOR)
635 2A ✽D21-1652-08 CENTER SHAFT
641 2A ✽D32-0194-08 LOCK CLUTCH
642 2A ✽D19-0263-08 PLATE CLUTCH
643 2A ✽D19-0264-08 GUIDE CLUTCH
644 2A ✽D13-0940-08 GEAR RING
661 2A ✽J99-0501-08 ARM ELEVATION
662 2A ✽G01-3361-08 SPRING(ADJUST)
663 2A ✽D21-1653-08 SHAFT(ELEVATION)
666 1B ✽D10-3140-08 ARM FEED
667 1B ✽D21-1654-08 CAM ADJUST
671 2B ✽J19-3415-08 HOLDER S/W
675 2B ✽T42-0586-08 MOTOR PULLEY ASSY
676 2A E03-0115-08 AC PLUG ADAPTER M
677 2B ✽D15-0315-08 PULLEY MOTOR
680 2B ✽A53-1301-08 DUST COVER ASSY
685 2B N16-0040-46 WASHER SPRING
686 2B N10-2040-46 NUT
687 2B N19-1259-08 WASHER PLAIN
690 1B N29-0269-08 E-RING
692 1B N19-1260-08 WASHER PLAIN
693 3A N29-0207-08 E-RING
694 2A ✽J19-3416-08 ARM STAND ASSY
695 2A ✽E30-2645-08 CORD AC KPY
695 2A ✽E30-2646-08 CORD AC X
695 2A ✽E30-2647-08 CORD AC ME
696 2A E30-2649-08 CORD PHONO
697 1A ✽T21-0157-08 CARTRIDGE(V-76)
698 2B ✽L07-0320-08 POWER TRANSFORMER KP
✽ 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. 1
L:Scandinavia K : USA P : Canada R : Mexico C : China I : Malaysia
Y : PX(Far East,Hawaii) T : England E : Europe G : Germany V : China(Shanghai)
Y : AAFES(Europe) X : Australia Q : Russia H : Korea M : Other Areas indicates safety critical components .
KD-291R/KD291RC
POWER SUPPLY/CONTROL

KD-291R/291RC
9
PARTS DESCRIPTIONS

KD-291R/291RC
SPECIFICATIONS
14-6,Dogenzaka 1-chome, Shibuya-ku, Tokyo, 150-8501 Japan
KENWOOD SERVICE CORPORATION
P.O BOX 22745, 2201 East Dominguez St., Long Beach, CA 90801-5745, U.S.A.
KENWOOD ELECTRONICS CANADA INC.
6070 Kestrel Road, Mississauga, Ontario, Canada L5T 1S8
KENWOOD ELECTRONICS LATIN AMERICA S.A.
P.O BOX 55-2791, Piso 6 plaza Chase, Cl. 47 y Aquilino de la Guardia Panama, Republic de Panama
KENWOOD ELECTRONICS BRASIL LTDA.
Av. Moema, 170-17˚, Andar-Cobertura “B”, Ed. Maximum Service Center, 04077-020
Moema, São Paulo-SP-Brasil
KENWOOD ELECTRONICS U.K. LIMITED
KENWOOD House, Dwight Road, Watford, Herts., WD1 8EB., United Kingdom
KENWOOD ELECTRONICS BELGUM N.V.
Meachelsesteenweg 418, B-1930 Zaventem, Belgium
KENWOOD ELECTRONICS DEUTSCHLAND GMBH
Rembrücker Str. 15, 63150 Heusenstamm, Germany
KENWOOD ELECTRONICS FRANCE S.A.
13 Boulevard Ney, 75018 Paris, France
KENWOOD ELECTRONICS ITALIA S.p.A.
Via G. Sirtori, 7/9 20129, Milano, ltaly
KENWOOD IBÉRICA S.A.
Bolivia, 239-08020 Barcelona, Spain
KENWOOD ELECTRONICS AUSTRALIA PTY. LTD.
(A.C.N. 001 499 074)
16 Giffnock Avenue, North Ryde, N.S.W. 2113, Australia
KENWOOD ELECTRONICS (HONG KONG) LTD.
Unit 3712-3724, Level 37, Tower 1, Metroplaza, 223 Hing Fong Road, Kwai Fong N.T., Hong Kong
KENWOOD ELECTRONICS GULF FZE
P.O.Box 61318, Jebel Ali, Dubai, U.A.E.
KENWOOD ELECTRONICS SINGAPORE PTE LTD.
No. 1 Genting Lane #02-02, KENWOOD Building, Singapore, 349544
KENWOOD ELECTRONICS (MALAYSIA) SDN BHD.
#4.01 Level 4, Wisma Academy Lot 4A, Jalan 19/1 46300 Petaling Jaya Selangor Darul Ehsan
Malaysia
KENWOOD ELECTRONICS (THAILAND) CO., LTD.
2019 New Pechburi Road, Bangkapi, Huaykwang, Bangkok, 10320 Thailand
Note:
Component and circuit are subject to modification to insure best operation
under differing local conditions. This manual is based on Europe (E) standard,
and provides information on regional circuit modification through use of alter-
nate schematic diagrams, and information on regional component variations
through use of parts list.
Motor and turntable
Drive system................. Belt-Drive System
Motor ............................. DC Servo Motor
Speeds .......................... 2 Speeds, 33-1/3 and 45 rpm.
Tonearm
Type............................... Integrated Straight Tonearm
Cartridge
Type............................... VM type (V-76)
Stylus ............................ N-76 with 0.6 mil Diamond
Frequency Response... 20 Hz to 20,000 Hz
Output Voltage ............. 2.5 mV(1,000 Hz, 5.0 cm/sec)
Load Impedance........... 47 kΩ
Compliance................... 4x10-6 cm/dyne
Miscellaneous
Power Consumption .... 4W
Dimensions................... W: 440 mm (17-5/16")
H: With Dust Cover: 106 mm
(4-3/16")
With out Dust Cover: 92mm
(3-5/8")
D: With Dust Cover: 390 mm
(15-3/8")
With out Dust Cover: 348 mm
(13-11/16")
Weight (Net).................. 2.9 Kg (6.4 lb)
KENWOOD follows a policy of continuous advancements in development. For
this reason specifications may be changed without notice.
KENWOOD poursuit une politique de progrès constants en ce qui concerne le
développement. Pour cette raison, les spécifi-cations sont sujettes à modifica-
tions sans préavis.
KENWOOD strebt ständige, Verbesserungen in der Entwicklung an. Daher bleiben
Änderungen der technischen Daten jederzeit vorbehalten.