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CASSETTE RECEIVER
KRC-31Y/36/366L/37/37Y
/391/394/394Y/466R
/4904Y
SERVICE MANUAL
KRC-36/37/37Y
/391/394
/394Y/466R
KRC-31Y/366L
KRC-4904Y
DC cord
(E30-4792-05)
Screw set
(N99-1610-15)
Depends on model. Refer to the parts list.
Mechanism extension cord : W05-0477-00 (7P), W05-0609-00 (10P)
KRC-XXXX
LOUD
SCRL
SCAN
B.S/RDM
SRC
OFF
KRC-XXXX
LOUD
SCRL
SCAN
B.S/RDM
SRC
OFF
KRC-4904
LOUD
SCRL
SCAN
B.S/RDM
SRC
OFF
Plastic cabinet assy
(A02-1486-13)
Screw set
(N99-1719-05)
© 2002-10 PRINTED IN JAPAN
B51-7986-00 ( N ) 2139
45Wx4
DISC
REP
T.CALL
M.RDM
CLK
MENU TI
VOL ADJ
45Wx4
DISC
REP
T.CALL
M.RDM
CLK
MENU
AUTO
AME
WIDE BAND
45Wx4
DISC
REP
T.CALL
M.RDM
CLK
MENU
AUTO
AME
Mounting hardware assy
(J21-9716-03)
Antenna adaptor
(T90-0523-05)
Panel assy
KRC-391:
(A64-2538-02)
KRC-36:
(A64-2541-02)
KRC-466R:
(A64-2941-02)
AUD
KRC-394/394Y:
(A64-2945-02)
KRC-37/37Y:
(A64-2947-02)
Panel assy
KRC-366L:
(A64-2942-02)
KRC-31Y:
(A64-2946-02)
AUD
Panel assy
(A64-2948-02)
AUD
Escutcheon
(B07-)
Lever
(D10-4589-04)
x2
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Table of Contents
Related Manuals for Kenwood KRC-31Y
Summary of Contents for Kenwood KRC-31Y
- Page 1 CASSETTE RECEIVER KRC-31Y/36/366L/37/37Y /391/394/394Y/466R /4904Y SERVICE MANUAL © 2002-10 PRINTED IN JAPAN B51-7986-00 ( N ) 2139 Mechanism extension cord : W05-0477-00 (7P), W05-0609-00 (10P) KRC-36/37/37Y Panel assy KRC-391: /391/394 (A64-2538-02) /394Y/466R KRC-36: KRC-XXXX 45Wx4 (A64-2541-02) KRC-466R: DISC (A64-2941-02) LOUD...
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Page 3: Components Description
KRC-31Y/36/366L/37/Y /391/394/Y/466R/4904Y COMPONENTS DESCRIPTION SYNTHESIZER UNIT (X14-689x-xx) Ref. No. Function Operation System µ-com E-volume Power amplifier Speaker output. RDS decoder Power IC Mute control logic 3 input NOR gate x 3. Equalizer amplifier For full logical cassette mechanism control. IC10 Sub motor driver For full logical cassette mechanism sub motor driver. -
Page 4: Microcomputer's Terminal Description
KRC-31Y/36/366L/37/Y /391/394/Y/466R/4904Y MICROCOMPUTER’S TERMINAL DESCRIPTION Microcomputer : UPD780058GCxxx (X14 : IC1) Pin No. Pin Name Function / Operating Condition Pin No. Pin Name Function / Operating Condition DSI control. P. CON-DET P. CON short-circuited detection. PANEL Panel detection. “L” : Panel exists CH-CONT Changer control. - Page 5 KRC-31Y/36/366L/37/Y /391/394/Y/466R/4904Y ADJUSTMENT BALANCE/FADER/BASS/TREBLE : CENTER T. ADV/METAL/DOLBY NR/AUTO : OFF Item Input Output Receiver Alignment Align For Fig. Settings Settings Settings Points FM Section While holding preset “1” key, press and hold preset “6” key 98.1MHz for a few seconds.
- Page 6 PC BOARD (COMPONENT SIDE VIEW) X14-689x-xx Refer to the schematic diagram for the values of resistors and capacitors. Address...
- Page 7 PC BOARD (FOIL SIDE VIEW) X14-689x-xx Address Address Address Address Address Refer to the schematic dia- gram for the values of resis- tors and capacitors.
- Page 8 PC BOARD (KRC-36/37/Y/391/394/Y/466R) (COMPONENT SIDE VIEW) (FOIL SIDE VIEW) X16-1532-7x (J74-1303-02) X16-1532-7x (J74-1303-02) L-CLK X16-1532-7x X16-1532-7x (J74-1303-02) (J74-1303-02) Address Address Refer to the schematic diagram for the values of resistors and capacitors.
- Page 9 (KRC-31Y/366L/4904Y) PC BOARD COMPONENT SIDE VIEW) (FOIL SIDE VIEW) X16-1532-7x (J74-1304-02) X16-1532-7x (J74-1304-02) L-CLK X16-1532-7x X16-1532-7x (J74-1304-02) (J74-1304-02) Address Address Refer to the schematic diagram for the values of resistors and capacitors.
- Page 10 KRC-37Y (E) 5.0V KRC-394 (E) 2-70 X86-3512-70 UPD780058GC418 KRC-37 (E) 7.6V KRC-36 (E) OUT1 7.7V KRC-391 (E) KRC-4904Y (E) 2-72 X86-3512-72 UPD780058GC426 KRC-31Y (E) 2-71 X86-3512-70 UPD780058GC418 KRC-366L (M) 0-22 X86-3512-70 UPD780058GC426 KRC-466R (M) 0-21 X86-3512-70 UPD780058GC418 R518 R520 330K 5.1K...
- Page 11 9X-XX) DC-IN/SP-OUT 1 2 3 4 5 6 7 9 10 11 12 13 14 15 16 17 18 5.0V 7.3V POWER AMPLIFER 1000P R32 22K R22 47K C257 1u50 C30 0.01 C20 0.01 C255 1u50 100K C256 100u10 R257 8.2K Q251 BACK-UP...
- Page 12 R158 470 EEPRON CP104 L CLK 5.0V R157 1K L CE R156 1K L DATA L R120 10K R155 10 Q151 5.0V R154 1K PANEL 5V SW R122 10K R161 1K REMO R153 1K PANEL SW ESD GND KRC-31Y/36/366L/37/Y/391/394/Y/466R/4904Y (1/2)
- Page 13 SWITCH UNIT (X16-1532-7X) ED1 (SEGMENT) ED1 (COMMON) TP35 ESD-GND REMOTE TP33 SENSOR PANEL SW R10 1K REMO TP9 TP8 TP32 KEY SCAN RESET TP31 PANEL 5V X14- TP30 R9 470 L-DATAL TP29 R8 470 L-CE TP28 R7 470 L-CLOCK TP27 R6 470 L-DATAS TP26...
- Page 14 VOL- TP12 AUTO DTA114EUA DTA124EUA DTC114EUA DTC124EUA TP13 TP14 TP15 KRC-31Y/36/366L/37/Y/391/394/Y/466R/4904Y (2/2) CAUTION : For continued safety, replace safety critical (X16-1532-7X) UNIT R14, components only with manufacturer's recommended parts MODEL NAME D13,14 : LC75883E (refer to parts list). : RS-171 KRC-466R (M) Indicates safety critical components.
- Page 15 KRC-31Y/36/366L/37/Y /391/394/Y/466R/4904Y EXPLODED VIEW (MECHANISM) : N09-4193-08 M2x2.5 : N09-4194-08 M1.7x7 : N09-4195-08 : N09-4196-08 M2x2.2 : N09-4197-08 : N09-4198-08 M2x3 : N09-4199-08 M2x5 (BLK) : N09-4200-08 1.2x3 : N19-2087-08 1.6x3.2 : N19-2088-08 : N19-2135-08 1.6x3.2 : N19-2146-08 2.1x4 : N19-2091-08 1.5x3.2...
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Page 16: Exploded View (Unit)
KRC-31Y/36/366L/37/Y /391/394/Y/466R/4904Y EXPLODED VIEW (UNIT) CME1 (X14-) M2.6x4 : N30-2604-46 M2.6x8 : N30-2608-46 φ2x6 : N80-2006-46 φ2x8 (BLK) : N80-2008-45 φ3x5 : N83-3005-46 φ3x8 : N80-3008-46 (X14-) φ3x16 : N83-3016-46 φ3x8 : N84-3008-46 WASHER : N29-0205-04 (X14-) (X16-) Depends on model. Refer to the parts list... -
Page 17: Parts List
TORSION COIL SPRING C103 CK73GB1C104K CHIP C 0.10UF E : KRC-394 E4 : KRC-394Y M2 : KRC-466R Indicates safety critical components. E1 : KRC-37 E5 : KRC-37Y M3 : KRC-366L E2 : KRC-36 E6 : KRC-31Y E3 : KRC-391 E7 : KRC-4904Y... - Page 18 50WV R102,103 RD14BB2C222J 2.2K J 1/6W E : KRC-394 E4 : KRC-394Y M2 : KRC-466R Indicates safety critical components. E1 : KRC-37 E5 : KRC-37Y M3 : KRC-366L E2 : KRC-36 E6 : KRC-31Y E3 : KRC-391 E7 : KRC-4904Y...
- Page 19 CHIP R J 1/10W HZS5B1 ZENER DIODE E : KRC-394 E4 : KRC-394Y M2 : KRC-466R Indicates safety critical components. E1 : KRC-37 E5 : KRC-37Y M3 : KRC-366L E2 : KRC-36 E6 : KRC-31Y E3 : KRC-391 E7 : KRC-4904Y...
- Page 20 RK73GB2A222J CHIP R 2.2K J 1/10W E : KRC-394 E4 : KRC-394Y M2 : KRC-466R Indicates safety critical components. E1 : KRC-37 E5 : KRC-37Y M3 : KRC-366L E2 : KRC-36 E6 : KRC-31Y E3 : KRC-391 E7 : KRC-4904Y...
- Page 21 D13-1329-08 GEAR T31-0220-08 PLAYBACK HEAD D10-4119-08 E : KRC-394 E4 : KRC-394Y M2 : KRC-466R Indicates safety critical components. E1 : KRC-37 E5 : KRC-37Y M3 : KRC-366L E2 : KRC-36 E6 : KRC-31Y E3 : KRC-391 E7 : KRC-4904Y...
- Page 22 MOTOR ASSY (MAIN) T42-1005-08 MOTOR ASSY (SUB) E : KRC-394 E4 : KRC-394Y M2 : KRC-466R Indicates safety critical components. E1 : KRC-37 E5 : KRC-37Y M3 : KRC-366L E2 : KRC-36 E6 : KRC-31Y E3 : KRC-391 E7 : KRC-4904Y...
- Page 23 KRC-31Y/36/366L/37/Y /391/394/Y/466R/4904Y PARTS LIST CAPACITORS 2 2 0 • Capacitor value CC45 Color* 010 = 1pF 0 = 22pF 1 = Type ... ceramic, electrolytic, etc. 4 = Voltage rating 100 = 10pF 2 = Shape ... round, square, etc.
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Page 24: 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, WD18 9EB, United Kingdom KENWOOD ELECTRONICS (THAILAND) CO., LTD. KENWOOD ELECTRONICS DEUTSCHLAND GMBH 2019 New Pechburi Road, Bangkapi, Huaykwang, Bangkok, 10320 Thailand Rembrücker-Str.