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CD RECEIVER
KDC-2021SA/SG
QQ
3 7 63 1515 0
SERVICE MANUAL
The CD mechanism infomation is not in this sarvice manual.
Please, refer to sarvice manual X92-4030-0x (B51-7867-00).
Panel assy
(A64-2564-02)
TE
L 13942296513
DC cord
(E30-4790-05)
www
.
KDC-2021S
COMPACT
DIGITAL AUDIO
LOUD
SCAN
OFF
Mounting hardware assy
(J21-9641-13)
x
ao
y
i
8
Front glass
(B10-4141-01)
RDM
REP
CLK
Q Q
3
6 7
1 3
Plastic cabinet assy
(A02-1486-13)
Lever
(D10-4589-04)x2
u163
.
2 9
9 4
2 8
© 2001-12 PRINTED IN JAPAN
B51-7873-00 ( N ) 1930
CD mechanism extension cord : W05-0618-00
Escutcheon
(B07-3054-02)
MONO
ADJ
AUTO
AME
AUD
1 5
0 5
8
2 9
9 4
Antenna adaptor
(T90-0523-05)
m
co
9 9
2 8
9 9
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Summary of Contents for Kenwood KDC-2021SA
- Page 1 CD RECEIVER KDC-2021SA/SG 3 7 63 1515 0 SERVICE MANUAL © 2001-12 PRINTED IN JAPAN B51-7873-00 ( N ) 1930 The CD mechanism infomation is not in this sarvice manual. CD mechanism extension cord : W05-0618-00 Please, refer to sarvice manual X92-4030-0x (B51-7867-00).
- Page 2 3 7 6 3 1 5 1 5 0 L 1 3 9 4 2 2 9 6 5 1 3 u 1 6 3...
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Page 3: Microcomputer's Terminal Description
KDC-2021SA/SG 3 7 63 1515 0 MICROCOMPUTER’S TERMINAL DESCRIPTION SYSTEM MICROCOMPUTER uPD780058GC-XXX (IC1:X25) Pin No. Pin Name Purpose Processing in STBY Mode PANEL Panel detection Hi-Z 8EJE SW *1 8 cm disk eject end detection switch L, L when the 8 cm CD compatibility is not provided. - Page 4 KDC-2021SA/SG 3 7 63 1515 0 MICROCOMPUTER’S TERMINAL DESCRIPTION / ADJUSTMENT Pin No. Pin Name Purpose Processing in STBY Mode LOE/LIM SW CD mechanism Down & Limit detection Hi-Z MOSW CD mechanism motor switching LO/EJ Lo/Ej switching Hi-Z M-STOP Mechanism COM stop output...
- Page 5 PC BOARD 3 7 6 3 1 5 1 5 0 (COMPONENT SIDE VIEW) (FOIL SIDE VIEW) X16-1460-xx/ X16-1460-xx/ X25-9142-7x (J74-1368-12) X16-1482-7x (J74-1285-12) X16-1482-7x (J74-1285-12) X25-9120-xx/913x-xx (J74-1290-12) C500 C501 C225 2 3 4 8 12 11 13 LED+B D265 W139 Q223 Q224 D261...
- Page 6 4.7K PANEL DIG GND 5V SW R145 R141 R144 2.2K w w w ILL+B 4.7K 100K C309 R143 4.7K 0.01 u 1 6 3 KDC-4021/V/Y/YV (1/2) KDC-3020R (1/2) KDC-3021A/G/YA/YG (1/2) KDC-306A/G/YA/YG (1/2) KDC-2092RYA/RYG (1/2) KDC-2021SA/SG (1/2) to CD MECHANISM ILL+B...
- Page 7 : RS-171 ISO CONNECTOR : DTA114EUA ISO CONNECTOR (X16-1482-7X) D1-13,17,18,20 ∗ UNIT D1-13, MODEL NAME 17,18,20 : B30-1633-05 B30-1567-05 : MA3062WA KDC-2021SA (E) 2-74 (RED) DC CORD B30-1533-05 (E30-4790-05) GND LINE KDC-2021SG (E) 2-75 DC CORD (GREEN) KDC-4021/Y/3021A/G/YA/YG/306A/G/YA/YG/ B LINE (E30-4791-05)
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Page 8: Exploded View
KDC-2021SA/SG 3 7 63 1515 0 EXPLODED VIEW M3x8 : N30-3008-46 DME1 φ2x6 : N80-2006-46 φ2x8 (BLK) : N80-2008-45 φ3x5 : N83-3005-46 φ3x10 : N80-3010-46 φ3x20 : N83-3020-46 φ2.6x6 : N86-2606-46 φ1.5 RING : N29-0205-04 L 13942296513 (X16) (X25) u163... -
Page 9: Parts List
LIGHTING BOARD C202 CK73GB1H103K CHIP C 0.010UFK D1-13 B30-1533-05 LED (1608,PG) C203-205 CE04NW1H2R2M ELECTRO 2.2UF 50WV E : Europe K : North America M : Other Areas E6 : KDC-2021SA Indicates safety critical components. W : Without Europe E7 : KDC-2021SG... - Page 10 0 OHM J 1/16W RK73GB2A103J CHIP R 1/10W W179 R92-2052-05 CHIP R 0 OHM J 1/10W E : Europe K : North America M : Other Areas E6 : KDC-2021SA Indicates safety critical components. W : Without Europe E7 : KDC-2021SG...
- Page 11 Q223,224 DTC143TUA DIGITAL TRANSISTOR Q251 DTC114YUA DIGITAL TRANSISTOR PTH9C42BE471Q POSITIVE RESISTOR X86-3522-71 FRONT-END UNIT u163 E : Europe K : North America M : Other Areas E6 : KDC-2021SA Indicates safety critical components. W : Without Europe E7 : KDC-2021SG...
- Page 12 KDC-2021SA/SG 3 7 63 1515 0 L 13942296513 u163...
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Page 13: Specifications
KENWOOD ELECTRONICS GULF FZE KENWOOD ELECTRONICS UK LIMITED P.O. Box 61318, Jebel Ali, Dubai, U.A.E. Kenwood House, Dwight Road, Watford, Herts, WD1 8EB, United Kingdom KENWOOD ELECTRONICS (THAILAND) CO., LTD. KENWOOD ELECTRONICS DEUTSCHLAND GMBH 2019 New Pechburi Road, Bangkapi, Huaykwang, Bangkok, 10320 Thailand Rembrücker-Str.