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CASSETTE RECEIVER
KRC-208S/218
KRC-268/288
KRC-28MR
SERVICE MANUAL
KRC-208S (K)
PWR
SRC
OFF
CLK
CD/MD-CHANGER CONTROL
AUTO
AME
ADJ
LOUD
SCAN
RDM
REP
T.C/D.SCN
1
2
3
4
5
ATT
KRC-268 (M)
PWR
SRC
OFF
CLK
AUTO
AME
ADJ
LOUD
T.CALL
1
2
3
4
5
ATT
KRC-28MR (K)
PWR
SRC
OFF
CLK
CD/MD-CHANGER CONTROL
AUTO
AME
ADJ
LOUD
SCAN
RDM
REP
T.C/D.SCN
1
2
3
4
5
ATT
SCREW SET
(N99-1632-05)
SCREW SET
STAY
(N99-1610-15)
(J54-0606-04)
(Except KRC-28MR)
REW
FF
PR
OG
CRSC
KRC-208S
DISC
FM
M.RDM
6
AUD
AM
A.ADJ
REW
FF
PR
OG
CRSC
KRC-268
FM
AM
6
AUD
A.ADJ
REW
FF
PR
OG
CRSC
KRC-28MR
DISC
FM
M.RDM
6
AUD
AM
A.ADJ
PLASTIC CABINET ASSY
(A02-1486-13)
DC CORD
(E30-xxxx-xx)
(Refer to the parts list.)
© 2000-1 PRINTED IN KOREA
B51-7586-00 (K) 1787
KRC-218 (K)
PWR
SRC
OFF
CLK
AUTO
AME
ADJ
LOUD
T.CALL
1
2
3
4
5
ATT
KRC-288 (M)
SRC
PWR
OFF
CLK
AUTO
AME
ADJ
CD/MD-CHANGER CONTROL
LOUD
SCAN
RDM
REP
T.C/D.SCN
1
2
3
4
5
ATT
LEVER
MOUNTING HARDWARE ASSY
(D10-3031-04) x2
(J21-9491-03)
REW
FF
PR
OG
CRSC
KRC-218
FM
6
AUD
AM
A.ADJ
REW
FF
PR
OG
CRSC
KRC-288
DISC
FM
M.RDM
6
AUD
AM
A.ADJ
40%
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Table of Contents
Related Manuals for Kenwood KRC-218
Summary of Contents for Kenwood KRC-218
- Page 1 CASSETTE RECEIVER KRC-208S/218 KRC-268/288 KRC-28MR SERVICE MANUAL © 2000-1 PRINTED IN KOREA B51-7586-00 (K) 1787 KRC-208S (K) KRC-218 (K) CD/MD-CHANGER CONTROL CRSC CRSC AUTO KRC-208S AUTO KRC-218 DISC LOUD SCAN T.C/D.SCN M.RDM LOUD T.CALL A.ADJ A.ADJ KRC-268 (M) KRC-288 (M)
- Page 2 CD/MD CHANGER C153,156,R207 POWER IC AM BPF B.U. C154,157,R206 ANT. 1200mV SP OUT FM BPF FRONT Lch FRONT-END OUT LF LEVEL MP IN RF GND E-VOL. NC/MPX FM ANT CH ISO AMP AM ANT OUT RF FRONT Rch Q201 RF GND FM+B FM+B FM+B...
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Page 3: Component Description
KRC-208S/218,268/288,28MR COMPONENT DESCRIPTION SYNTHESIZER UNIT (X14-614x-xx) REF. No. FUNCTION OPERATION SYSTEM µ-COM Controls system. ELECTRIC VOLUME Controls sound volume. Selects each source. MUTE Controls each mute output. POWER IC Amplifies power so that the speaker can drive audio signal. EQUALIZER AMPLIFIER Equalizer amplifier for cassette tape sound. -
Page 4: Circuit Description
KRC-208S/218,268/288,28MR CIRCUIT DESCRIPTION (X14-) IC1 : µ-COM PORT No. PORT NAME FUNCTION OPERATING CONDITION µ-com clock. (4.5MHz) GND. L DATA L LCD driver data. L DATA S LCD driver data. L CLK LCD driver clock. L CE LCD driver chip enable. I/O E-volume data. -
Page 5: Test Mode
KRC-208S/218,268/288,28MR TEST MODE 1. How to enter the test mode • Reset the unit while holding the "FM" key and preset "6" key. • All indication segments go ON at the beginning of the test mode. 2. How to release the test mode •... - Page 6 KRC-208S/218,268/288,28MR ADJUSTMENT/EINSTELLUNGEN (MECHA.) Head Angle Adjustment Head height alignment procedure • During FWD transport adjust screws F and F' so that line A of 2-LINE TAPE passes trough the center of the head shield plate (core center area) • During RVS transport adjust screws R and R' so that line B of 2-LINE TAPE passes trough the center of the head shield plate core (center (2-LINE TAPE) area)
- Page 7 PC BOARD (Component side view) SWITCH UNIT X13-965x-xx (J74-0963-12) SYNTHESIZER UNIT X14-614x-xx (J74-0959-22) W101 11 12 8 4 3 2 10 6 W112 W113 R404 C400 R452 R453 D403 D409 R154 R351 D370 D402 Q370 D411 D401 W119 D404 D350 D400 D371 D405...
- Page 8 PC BOARD (Foil side view) SWITCH UNIT X13-965x-xx (J74-0963-12) SYNTHESIZER UNIT X14-614x-xx (J74-0959-22) W101 12 11 W112 W113 C400 R404 R453 R452 D403 D409 R154 R351 D370 D402 Q370 D411 D401 D350 D404 W119 D400 D371 C451 D405 R405 R372 R451 R450 W122...
- Page 9 F1 (10A) 16 8 (F52-0006-05) FRONT L REAR L GRN/BLK WHT/BLK SYNTHESIZER UNIT (X14-614x-xx) 11 10 VIOL/BLK GRY/BLK REAR R FRONT R VIOL POWER IC TOP VIEW BLU/WHT P. CON/ANT. CON 3.3K 1/2W REQ H A GND DATA H 3300u16 B.U.
- Page 10 100P EQUALIZER AMPLIFIER KRC-208S/218,268/288,28MR (K/K,M/M,K) (1/2) X13- (X14-614x-xxx) MODEL NAME UNIT NO. R120 R121 R122 R123 W104 KRC-208S (K) 0-10 LC72366-9592 KRC-288 (M) 0-21 NO YES LC72366-9592 KRC-218 (K) 0-11 LC72366-9592 KRC-268 (M) 0-22 LC72366-9592 KRC-28MR (K) 0-12 LC72366-9593 KRC-208S/218,268/288,28MR...
- Page 11 (X13-965x-xx) : LC75853NE GND LINE PL1,2 MODEL NAME UNIT No. B LINE KRC-208S (K) B30-1485-05 : DTA114EK 0-10 KRC-28MR (K) (GREEN) KRC-288 (M) D1-13,15 : B30-1565-05 B30-1483-05 KRC-218 (K) 0-11 (MILKY WHITE) : B30-2025-05 KRC-268 (M) : MA3062-M : B38-1022-05...
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Page 12: Exploded View (Mechanism)
KRC-208S/218,268/288,28MR EXPLODED VIEW (MECHANISM) D40-1136-05 (MECHA.) KRC-208S/218,268/288,28MR (K/K,M/M,K) Parts with exploded numbers larger than 700 are not supplied. -
Page 13: Exploded View (Unit)
KRC-208S/218,268/288,28MR EXPLODED VIEW (UNIT) (X14-) (X14-) (X14-) (Except KRC-28MR) M3x4 : N30-3004-46 : N83-3005-46 3x10 : N64-3010-46 : N80-3008-46 3x20 : N83-3020-46 2.6x6 : N86-2606-46 KRC-208S KRC-288 (X14-) KRC-28MR (X14-) only (X14-) (X14-) (X14-) (X14-) (X14-) Refer to the following page. UNIT (1/2) KRC-208S/218,268/288,28MR (K/K,M/M,K) Parts with exploded numbers larger than 700 are not supplied. - Page 14 KRC-208S/218,268/288,28MR EXPLODED VIEW (TDF) : N80-2006-46 : N29-0205-04 : N80-2008-45 (X13-) (X13-) (X13-) (X13-) (X13-) (X13-) (X13-) UNIT (2/2) KRC-208S/218,268/288,28MR (K/K,M/M,K) Parts with exploded numbers larger than 700 are not supplied.
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Page 15: Parts List
ITEM CARTON CASE (KRC-208S) LC75853NE MOS-IC H54-1597-03 ITEM CARTON CASE (KRC-28MR) DTA114EK DIGITAL TRANSISTOR UN2111 DIGITAL TRANSISTOR H54-1598-03 ITEM CARTON CASE (KRC-218) SYNTHESIZER UNIT (X14-614x-xx) H54-1600-03 ITEM CARTON CASE (KRC-288) H54-1601-03 ITEM CARTON CASE (KRC-268) C1 ,2 CK73GB1H152K CHIP C 1500PF... - Page 16 BINDING HEAD TAPTITE SCREW R201 RK73EB2B223J CHIP R 1/8W R202 RD14BB2C102J 1.0K 1/6W K : KRC-208S M1 : KRC-288 E : Europe K : North America M : Other Areas K1 : KRC-28MR M2 : KRC-268 indicates safety critical components. K2 : KRC-218...
- Page 17 DIGITAL TRANSISTOR ERA15-01 DIODE Q200 UN2212 DIGITAL TRANSISTOR Q201 2SB1277(Q,R) TRANSISTOR K : KRC-208S M1 : KRC-288 E : Europe K : North America M : Other Areas K1 : KRC-28MR M2 : KRC-268 indicates safety critical components. K2 : KRC-218...
- Page 18 COMPRESSION COIL SPRING D10-4102-08 D13-1110-08 GEAR D15-0909-08 PULLEY D16-0606-08 BELT K : KRC-208S M1 : KRC-288 E : Europe K : North America M : Other Areas K1 : KRC-28MR M2 : KRC-268 indicates safety critical components. K2 : KRC-218...
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Page 19: Specifications
155mm 155mm Weight 1.4Kg 1.4Kg KENWOOD follows a policy of continuous advancements in development. For this reason specifications may be changed without notice. KENWOOD CORPORATION 14-6, Dogenzaka 1-chome, Shibuya-ku, Tokyo, 150-8501 Japan KENWOOD SERVICE CORPORATION KENWOOD ELECTRONICS ITALIA S.p.A. P.O. Box 22745, 2201 East Dominguez Street, Via G.