Kenwood KD-291-R, KD-291-RC Service manual

Page 1
AUTOMATIC RETURN TURNTABLE
KD-291R/291RC
SERVICE MANUAL
Dust cover ass'y (A53-1301-08)
© 2000-11/B51-4279-10 (K/K) 732
Hinge ass'yx2 (J50-0135-08)
Rubber sheet (G16-0775-08)
Platter (D02-0104-08)
Adaptor EP (W01-0329-04)
Knob(SPEED) (K27-2028-08)
Cord phono (E30-2649-08)
Arm feed (D10-3140-08)
Arm stand ass'y (J19-3416-08)
Tone arm ass'y (J91-0399-08)
Arm elevation (J99-0501-08)
Cushion(Dust cover)x2 (G11-2059-08)
Knob(CUT) (K27-2026-08)
Cord AC * (E30-)
Elevator (D12-0130-08)
Motor (T42-0587-08)
* Refer to parts list on page 8 .
Page 2
KD-291R/291RC

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.
2
Page 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
3
Page 4
KD-291R/291RC

ADJUSTMENT / REGLAGES / ABGLEICH

ADJUSTMENT

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.

REGLAGES

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.

ABGLEICH

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 ein­stellen.
4
Page 5
7
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
Y EL
YEL
BLK
BLK
R
ED
FRONT
R
ED
W
H
T
BLU
BLK
R
ED
RED
YEL
BLU
6
5
4
3
2
1
Refer to the schematic diagram for the value of resistors and capacitors.
PC BOARD
ACEBD
(
Component side view
)
5
Page 6
7
MOTOR ASS'Y
(KH-JM0221M6)
D101
D102
D101
D104
D103
IN4148
AN6652
MM16S2
-RWH
R101
270
1
2
4
3
IC 1
M
B
A
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
+
+
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.
6
CAUTION: For continued safety, replace safety critical components
5
4
3
2
1
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.
KD-291R/291RC
ACEBD
Page 7
KD-291R/291RC K

EXPLODED VIEW

A B
1
2
3
7
Parts with exploded numbers larger than 700 are not supplied.
Page 8
8
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.
New
Ref. No
Add-
ress
Parts
Parts No.
Description

KD-291R/KD291RC

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
Desti-
nation
1
Re-
marks
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.
New
Ref. No
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
Add-
ress
Parts
Parts No.
Description
Desti-
nation

POWER SUPPLY/CONTROL

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
2
Re-
marks

PARTS LIST

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 .
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 .
Page 9
KD-291R/291RC

PARTS DESCRIPTIONS

9
Page 10
KD-291R/291RC

SPECIFICATIONS

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
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 modifica­tions sans préavis.
KENWOOD strebt ständige, Verbesserungen in der Entwicklung an. Daher bleiben Änderungen der technischen Daten jederzeit vorbehalten.
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 k
Compliance................... 4x10
Miscellaneous
Power Consumption .... 4W
Dimensions................... W: 440 mm (17-5/16")
Weight (Net).................. 2.9 Kg (6.4 lb)
-6
cm/dyne
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")
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 alter­nate schematic diagrams, and information on regional component variations through use of parts list.
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
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