background image

© 1999-11 PRINTED IN JAPAN
B51-7546-00 (N) 1580

CASSETTE RECEIVER

SERVICE MANUAL

KRC-28YG/YA

MECHANISM EXTENSION CORD

W05-0477-00 (7P)

W05-0609-00 (10P)

SRC

PWR
OFF

LOUD

EJECT

AME

ADJ

A.ADJ

MONO

CLK 

B.S

REP

T.CALL

KRC-28

40W  4

X

AUTO

PANEL ASSY

(A64-1909-02)

FRONT GLASS

(B10-3140-01)

ESCUTCHEON

(B07-2181-02)

CASSETTE LID

(A53-1638-13)

DC CORD
(E30-4790-05)

ANTENNA ADAPTOR
(T90-0523-05)

LEVER
(D10-3031-04)x2

MOUNTING HARDWARE ASSY
(J21-9491-03)

PLASTIC CABINET ASSY
(A02-1486-13)

Summary of Contents for KRC-28YA

Page 1: ...P W05 0609 00 10P SRC PWR OFF LOUD EJECT AME ADJ A ADJ MONO CLK B S REP T CALL KRC 28 40W 4 X AUTO PANEL ASSY A64 1909 02 FRONT GLASS B10 3140 01 ESCUTCHEON B07 2181 02 CASSETTE LID A53 1638 13 DC CORD E30 4790 05 ANTENNA ADAPTOR T90 0523 05 LEVER D10 3031 04 x2 MOUNTING HARDWARE ASSY J21 9491 03 PLASTIC CABINET ASSY A02 1486 13 ...

Page 2: ...UB ACC B U AMP MUTE SCK PWR STBY SDA FM B AM B RST PANEL ON OFF LCD CLK LCD CE LCD DATA OUT LCD DATA IN DSI FWD REV T MODE PACK IN MOTOR OUT Rch COM Lch TAPE L R MPX AM OUT RR OUT LR OUT RF LEVEL SCK SDA OUT LF TAPE L R STBY MUTE Rch Lch PACK T END STBY MODE FWD REV B U 5V COM B B U 14V S MUTE 168mV 162mV E 190mV KM 360mV AM FM E 1100mV KM 1600mV TAPE 1708mV FM CD CH 3635mV 615mV 830mV AM 780mV 57...

Page 3: ...SEL 2 I Destination discrimination 2 29 SEL 1 I Destination discrimination 1 30 SEL 0 I Destination discrimination 0 31 VDD VDD 32 N CAN I Noise canceller setting 33 MOTOR O Motor ON output 37 DSI O Disable System Indicator 38 EQ MUTE O Tape equaliser mute output 39 P ON O Power on 40 3 CIRCUIT DESCRIPTION PORT No 34 36 X14 IC1 SYSTEM u COM PORT NAME I O FUNCTION 41 42 MS CONT O 43 44 BEEP O Beep ...

Page 4: ...NT No ITEM INPUT SETTINGS OUTPUT SETTINGS RECEIVER SETTINGS ALIGNMENT POINTS ALIGN FOR FIG CASSETTE DECK SECTION 1 AZIMUTH TCC 153 10KHz SP OUT TAPE PLAY Head azimuth screw FWD REV ME1 Adjust so that output level in playing FWD and REV becomes maximum each b F E b AZIMUTH FRONT FWD REV ...

Page 5: ...2 W27 C48 R175 C8 R77 W15 W14 W23 R65 C170 W24 R26 W38 C45 VR1 L6 C124 X1 C208 C3 C123 C126 C4 C47 L5 C83 C205 X86 C82 C7 C13 C67 C127 C55 C204 C128 C84 R63 R64 C85 C202 C212 1 5 7 6 10 9 2 3 4 8 12 13 11 1 9 16 8 1 25 2 24 1 1 3 23 1 10 1 2 1 2 15 14 1 7 R191 R255 W5 R404 R418 R416 R180 R407 R406 R405 R417 CP4 C87 R192 R411 R408 R410 R409 C193 R30 R28 R8 R6 R257 R5 R44 R38 R37 R43 R41 R250 R36 R3...

Page 6: ...C194 C69 C193 10 C124 11 C126 1 40 R10 R191 C19 C20 R192 C68 R67 C195 C70 R6 C3 C6 R8 1 C212 CMP C4 L2 C170 28 14 8 W36 W18 C204 W17 L5 R207 B E W14 W15 C67 C65 W38 W22 R250 W20 E B C46 W21 R41 15 C47 R257 C15 R193 C17 L3 C211 R194 E C18 C16 B E E B R195 E R36 C45 C48 C202 C203 R35 R34 W13 W12 R33 C205 R43 E B E B R38 R44 R37 R C7 L 2 1 23 C8 DOLBY L 1 R 3 G C208 B E B B L6 1 X86 L7 16 9 24 2 1 D1...

Page 7: ...00 GND STBY T END GND M B 47 4 5 16 3 R340 100K R338 100K 7 6 6 3 C203 61 49 48 39 MS SW GND 10 22P C101 38 B U 33 33 56 45 37 37 45 56 220u6 3 C110 0 01 C111 FL FL RL RL RR RR FR FR R415 100K 1u50 C204 1u50 C202 100K 0 01 C104 470 R339 RST 14 13 12 11 10 9 8 VDD 1 2 3 4 5 6 7 GND R145 47K R146 R143 22K 66 R125 47K 47K R126 CP1 4 7K 1K CP3 CP2 22K 55 22K R135 4 7K R129 RST 0 01 C132 C131 10K R185 ...

Page 8: ...7 T R DOLBY MTL F R 12 13 14 11 10 C20 1 18K R10 C6 12K R8 330K R6 0 012 C5 R9 18K R7 12K 330K R5 5 1K R13 0 01 C54 5 1K R14 R12 5 6K 1u50 C123 5 6K R11 0 01 C125 100u10 C124 180K R50 0 22u50 C126 C57 0 1 0 1u50 C7 R52 24K C56 0 01 1 6K R51 C55 0 47u50 R65 4 7 0 012 150 R4 22u6 3 C4 R2 15K R1 15K C2 1500P C1 1500P R54 750 R55 22K R57 470 C60 0 01 R56 100K 1 2 3 4 5 6 7 8 9 10 HEADR HEADCOM HEADL M...

Page 9: ...COM1 COM2 COM3 KS1 KS2 KS3 KS4 KS5 S17 S18 S19 S20 S21 S22 S23 S24 S25 S26 S27 S28 S29 S30 S31 S32 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 S13 S14 S15 S16 S17 S18 S19 S20 S21 S22 S23 S24 S25 S26 S27 S28 S29 S30 S31 S32 S33 S34 S35 S36 S37 S38 S39 S40 S12 S11 S10 S9 S8 S7 S6 COM1 COM2 COM3 0 01 C2 OUT GND1 3 GND2 VCC 2 4 1 B30 1513 05...

Page 10: ...09 4196 08 N09 4197 08 N09 4198 08 N09 4199 08 N09 4200 08 N09 4201 08 N19 2086 08 N19 2087 08 N19 2088 08 N19 2089 08 N19 2090 08 N19 2091 08 N19 2092 08 N29 0510 08 N29 0511 08 4 73 27 2 55 76 a M1 63 79 52 64 79 6 52 74 74 45 16 16 13 13 17 45 67 8 40 41 77 9 68 1 37 19 10 107 38 94 95 80 15 18 53 83 62 23 22 59 35 46 42 69 36 7 47 48 103 105 100 102 3 HD1 33 75 32 34 26 24 54 M2 70 25 71 44 39...

Page 11: ...2x6 Ø 2x8 BLK Ø 3x5 M3x12 Ø 3x10 D D D F D E E Ex2 X14 6160 10 X13 9670 10 C C C C C B B A 1 CL1 771 770 801 706 203 246 237 223 221 235 238 207 X14 ME1 702 N30 2608 45 N80 2006 46 N80 2008 45 N83 3005 46 N30 3012 46 N80 3010 46 205 726 201 248 210x2 F1 204 302 225 245 252 253 254 256 208 PA1 255 250 236 251 303 304 301 LCD1 304 220 802 803 259 DC1 ...

Page 12: ...6 B30 1533 05 LED 1608 PG E4 D1 16 B30 1567 05 LED 1608 RED E5 KRC 28YG YA Ref No Parts No Description Dest inati on D17 B30 1564 05 LED 1608 BLUE LCD1 2C B38 1026 05 LIQUID CRYSTAL PL1 2 B30 1543 05 LAMP GRN 5 5V 0 12 C1 CK73FB1E473K CHIP C 0 047UF K C2 CK73FB1H103K CHIP C 0 010UF K C4 CK73FB1E473K CHIP C 0 047UF K C5 CK73FB1H821K CHIP C 820PF K C8 CK73FB1C104K CHIP C 0 10UF K 304 2C E29 1575 04 ...

Page 13: ...R92 0365 05 CHIP R 1 0K J 1 2W R33 36 RK73GB1J472J CHIP R 4 7K J 1 16W R39 40 RK73GB1J223J CHIP R 22K J 1 16W Ref No Parts No Description Dest inati on R45 46 RK73GB1J361J CHIP R 360 J 1 16W R47 48 RK73EB2B181J CHIP R 180 J 1 8W R50 RK73GB1J184J CHIP R 180K J 1 16W R51 RK73GB1J162J CHIP R 1 6K J 1 16W R52 RK73GB1J243J CHIP R 24K J 1 16W R53 RK73FB2A471J CHIP R 470 J 1 10W R54 RK73FB2A751J CHIP R 7...

Page 14: ...44EUA DIGITAL TRANSISTOR Q83 UN5213 DIGITAL TRANSISTOR Q84 2SA1648 Z TRANSISTOR Q85 2SC4081 TRANSISTOR Q85 2SD1819A TRANSISTOR Ref No Parts No Description Dest inati on Q86 DTC144EUA DIGITAL TRANSISTOR Q86 UN5213 DIGITAL TRANSISTOR Q87 DTA124EUA DIGITAL TRANSISTOR Q87 UN5112 DIGITAL TRANSISTOR Q88 2SB1184 TRANSISTOR Q89 2SC4081 TRANSISTOR Q89 2SD1819A TRANSISTOR Q90 91 DTC124EUA DIGITAL TRANSISTOR...

Page 15: ...TORSION COIL SPRING 68 2A G01 2833 08 TORSION COIL SPRING 69 2B G01 2834 08 TENSION COIL SPRING 70 1B G01 2835 08 TORSION COIL SPRING 71 1B G01 2836 08 TORSION COIL SPRING 73 1A G09 2020 08 SPRING 74 2A G01 2837 08 COMPRESSION COIL SPRING 75 1B G01 2838 08 TORSION COIL SPRING 76 1A G01 2839 08 TORSION COIL SPRING 77 2A G01 2843 08 TORSION COIL SPRING 79 1A G01 2840 08 TENSION COIL SPRING 80 3A G01...

Page 16: ...KRC 28YG YA 21 ...

Page 17: ...GULF FZE P O Box 61318 Jebel Ali Dubai U A E KENWOOD ELECTRONICS THAILAND CO LTD 2019 New Pechburi Road Bangkapi Huaykwang Bangkok 10320 Thailand KENWOOD ELECTRONICS SINGAPORE PTE LTD 1 Genting Lane 07 00 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 SPECIFICATIONS Frequency Rang...

Reviews: