Kenwood KRC-208S/218 Service Manual Download

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KRC-208S/218,268/288,28MR

BLOCK DIAGRAM

IC1

KEY

PANEL 5V SW

MUTE

B.U. DET.

B.U.

ACC

P-CONT.

MUTE

PRE

POWER IC

EQ. AMP.

CH ISO AMP

NC/MPX

E-VOL.

CD/MD
CHANGER

FRONT Lch

FRONT Rch

REAR Lch

REAR Rch

LCD DRIVER

LCD

ME1

MAIN

TAPE MECHA.

IC5

1 Lch

2 Rch

PRE OUT

IC2

IC4

IC3

SP OUT

REAR

RESET SW

PAN IN SW

ANT-CONT.

P-CONT.

IC1

FRONT-END

FM+B

Q201

AM+B

Q203

AM BPF

FM BPF

C154,157,R206

C153,156,R207

Q320

Q450,451

Q370,371

Q50

Q350-353

Q353

P-CON.SW

Q54-57

COM+B

Q58-61

ILLUMI.

B.U.5V

Q51,52

SYSTEM u-COM

P-CONT.

CHANGER

RST SW

Q301

D1-15

PL1,2

ANT.

ANT-CONT.

FM ANT

AM ANT

RF GND

FM+B

AM+B

OSC GND

PLL +B

IFC OUT

SDA

SCL

DIG GND

IF1+B

IF1 GND

S-METER

IF2 GND

FM+B

SW5V

ACC DET

B.U. DET

SCL

MUTE

SDA

P. CON

ANEL

HOLD

L CLK

L D

FWD/REV

OTO

CH CON

ATA

REQ H

REQ C

CH CLK

MP IN

MPX

OUT RR

OUT LR

OUT RF

Rch

LEVEL

SCL

SDA

OUT LF

Rch

STBY

MUTE

Rch

Lch

T-MUTE

FWD

REV

B.U.5V

B.U.

CHRST

S MUTE

B.U.5V

AM+B

VDD 5V

CK IN

L CE

ANT CON

CHMUTE

BEEP

SVR

AMP. STBY

SVR

AC GND (BEEP)

Lch

Rch

Lch

1200mV

TAPE :1681mV
CD/MD-CH :3529mV

AM :546mV

FM :1781mV

RF GND

OSC GND

IF2 +B

AUDIO OUT

S-METER

PLL CLK

PLL DATA

HD1

55.6mV

BU5V

SW5V

B.U.5V

AM: 170mV

FM: 400mV

PACK IN

(FF/REW)

AMP. MUTE

FF/REW

BU5V

ILL

(X13)

KRC-208S/218,268/288,28MR (K/K,M/M,K)

www . x ia o y u 1 6 3 . c o m

QQ 3 7 6 3 1 5 1 5 0

T E L 1 3 9 4 2 2 9 6 5 1 3

TEL 13942296513 QQ 376315150 892498299

Summary of Contents for KRC-208S/218

Page 1: ... ATT SRC PWR OFF AME ADJ AUTO SCAN RDM REP T C D SCN M RDM LOUD DISC CRSC A ADJ FM AM FF REW PR OG AUD 1 2 3 4 5 6 CLK ATT SRC PWR OFF AME ADJ AUTO SCAN RDM REP T C D SCN M RDM LOUD DISC CRSC A ADJ FM AM FF REW PR OG AUD 1 2 3 4 5 6 CLK ATT SRC PWR OFF AME ADJ AUTO T CALL LOUD CRSC A ADJ FM AM FF REW PR OG AUD 1 2 3 4 5 6 CLK ATT SRC PWR OFF AME ADJ AUTO T CALL LOUD CRSC A ADJ FM AM FF REW PR OG A...

Page 2: ...D S METER IF2 GND SD FM B SW5V ACC DET B U DET SCL MUTE SDA P CON PANEL HOLD L CLK L DATA S L DATA L FWD REV MOTOR CH CON DATA H DATA C REQ H REQ C CH CLK Rch COM Lch TAPE MP IN AM MPX OUT RR OUT LR OUT RF Rch LEVEL SCL SDA OUT LF Rch STBY MUTE Rch Lch T MUTE FWD REV B U 5V 8V B U CHRST S MUTE 8 4 10 B U 5V AM B VDD 5V PACK IN L CE ANT CON CHMUTE BEEP SVR AMP STBY SVR AC GND BEEP Lch Lch Rch Lch 1...

Page 3: ...DISCHARGE SW Works when the base level comes H Q153 PRE MUTE DRIVER Works when the base level comes L Q200 FM B SW Works when the base level comes H in FM mode Q201 FM B DRIVER Works when Q200 works Q202 AM B SW Works when the base level comes H in AM mode Q203 AM B DRIVER Works when Q203 works Q260 MOTOR B SW Works when the base level comes H in the tape mode Q261 MOTOR B DRIVER Works when Q260 w...

Page 4: ...head unit 36 SVR O Power IC IC4 discharge control 37 AMP STBY O Power IC IC4 stand by 38 AMP MUTE O Power IC IC4 mute 39 P CON O P CON for external amplifier 40 ANT CON O Power antenna 41 SW5 O Circumambient circuit power supply control 42 ILL O Illumination 43 No connection 44 BEEP O Buzzer 2KHz 45 47 No connection 48 ROLL OFF I Destination switch 49 N CAN I Destination switch 50 SEL1 I Destinati...

Page 5: ...ntary power down or the panel off 3 Audio adjustment Set the volume level to 10dB which is shown as 30 on the display Loudness OFF The BASS TREBLE and BALANCE FADER can be set to the full boost full cut and full front full rear each by pressing the Track UP Track DOWN keys Sound coordination doesn t appear for the feed www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9...

Page 6: ...festgestellt wird ist diese Einstellung zu wiederholen Verwendetes Band SCC 1659 hergestellt von A BEX 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 th...

Page 7: ... D55 D54 D402 D408 D409 D403 D350 D351 W104 D53 Q201 Q203 D200 Q261 D404 D260 IC5 J4 J5 J2 J1 A1 D370 IC4 D50 Q370 D371 D151 D150 D152 P1 WH1 D100 J3 CN2 D261 REMO GND W100 W28 W75 W85 W22 W33 W73 W67 W72 W65 W13 W96 W35 W36 W68 W64 W15 W8 W31 W71 W69 W27 W79 W76 W34 W39 W43 W46 W51 W98 W99 W23 L3 R50 R65 R351 R353 R66 W48 W10 X1 C50 C17 C18 C160 C152 C55 W40 W20 C15 C16 C161 C350 C352 C162 C450 C...

Page 8: ...1 R60 E R61 B B E E B E B W122 R62 R64 R63 E B IC3 Q260 Q202 IC2 Q150 Q200 Q450 Q153 Q451 Q301 Q320 Q351 IC1 Q371 Q352 Q353 Q50 Q52 Q151 Q54 Q55 Q59 Q58 Q53 Q57 Q61 D260 WH1 Q261 P1 D261 X14 614x xx SYNTHESIZER UNIT J74 0959 22 CN2 D200 A1 Q203 Q201 J1 J5 D403 D401 D402 D409 D411 D405 D404 D400 D408 J4 J3 D351 W104 D150 D352 D54 D100 D52 Q51 Q350 D151 D152 Q370 D371 IC4 D50 D51 D350 D370 D53 J2 IC...

Page 9: ...K PLL DATA SDA L CE L CLK L DATA S L DATA L GND XIN GND GND HOLD VDD GND GND VDD GND GND VSS GND XOUT SW5V ILL BEEP ROLL OFF NOISE CANCELLER SEL1 SEL2 EQ MUTE FWD REV REMO ACC DET B U DET S METER PANEL R110 47K R108 47K 2 1 R104 100K 38 37 36 27 28 26 25 27 R154 750 C161 1u50 41 61 62 41 44 R120 47K R122 47K R123 47k R121 47K 2 2K 2 2M 54 64 67 X1 4 5MHz C103 22P C102 22P 6 4 3 5 9 10 7 8 11 12 13...

Page 10: ...O NO YES YES MODEL NAME KRC 208S K UNIT NO 0 10 NO YES NO R122 R120 KRC 288 M KRC 218 K KRC 268 M KRC 28MR K YES YES YES R121 YES NO R123 YES 28 27 26 25 24 23 22 21 20 19 18 17 16 15 AC OUT L AC OUT R CREF OUT LF OUT RF OUT LR OUT RR VDD GND SDA SCL S MUTE MUX R MUX L 1 2 3 4 5 6 7 8 9 10 11 12 13 14 AC IN L AC IN R TAPE R TAPE L CDR CDRG CDL CDLG PHONE AM MPX LEVEL 1 MP IN MP OUT 54 C13 C14 L4 5...

Page 11: ... 4 7 R18 1K 63 64 62 61 62 61 63 R11 100 R13 100 R14 100 R12 100 64 25 12 13 14 15 16 26 27 28 29 30 31 32 18 19 20 21 22 23 24 17 CO3 CO2 CO1 37 36 35 34 33 PL1 PL2 13 13 R21 470 R6 470 R5 330 R4 R3 330 R1 470 R2 330 KS1 KS2 KS3 KS4 KS5 KI4 KI3 KI2 KI1 KRC 28MR K PL1 2 KRC 208S K B30 1483 05 0 11 UNIT No MODEL NAME 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 S16 ...

Page 12: ...D1 56 100 106x2 37 36 38 M1 20 5 1 23 22 105x2 113 112 16 18 17 19 102 104 D40 1136 05 MECHA KRC 208S 218 268 288 28MR K K M M K 1 2 3 A B KRC 208S 218 268 288 28MR EXPLODED VIEW MECHANISM 15 www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 ...

Page 13: ... page ME1 A 1 F1 244 216 DC1 242 207 201 262 726 767 261 243 221x2 X14 J 1 X14 X14 J 5 X14 J 4 KRC 208S KRC 288 KRC 28MR only X14 778 X14 777 X14 776 X14 J 2 X14 L 1 729 703 UNIT 1 2 KRC 208S 218 268 288 28MR K K M M K 1 2 3 C D 16 KRC 208S 218 268 288 28MR EXPLODED VIEW UNIT www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ ...

Page 14: ...73 X13 274 X13 ED1 X13 271 775 208 206 235 256 259 PA1 241 227 252 253 251 257 258 255 232 232 232 254 231 UNIT 2 2 KRC 208S 218 268 288 28MR K K M M K 1 2 3 E F 17 EXPLODED VIEW TDF KRC 208S 218 268 288 28MR www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 ...

Page 15: ... DC CORD KK1K2 274 2E E29 1600 04 CONDUCTIVE RUBBER DC1 1C E30 4784 05 DC CORD M1M2 J1 E59 0831 05 RECTANGULAR PLUG F1 2D F52 0006 05 FUSE MINI BLADE TYPE 10A R1 RK73EB2B331J CHIP R 330 J 1 8W F1 2D F52 0011 05 FUSE MINI BLADE TYPE 10A R2 RK73EB2B471J CHIP R 470 J 1 8W R3 4 RK73EB2B331J CHIP R 330 J 1 8W 231 1F G01 2525 04 TORSION COIL SPRING R5 6 RK73EB2B471J CHIP R 470 J 1 8W 232 3F G01 2793 14 ...

Page 16: ... CHIP R 22K J 1 8W C400 CE04CW0J220M ELECTRO 22UF 6 3WV KK1M1 R115 RK73FB2A102J CHIP R 1 0K J 1 10W C401 402 C90 2606 05 ELECTRO 0 47UF 50WV KK1M1 R116 RD14BB2C472J RD 4 7K J 1 6W C450 451 C90 2597 05 ELECTRO 10UF 16WV R118 119 RK73FB2A222J CHIP R 2 2K J 1 10W C452 CK73FB1H103K CHIP C 0 010UF K R120 RK73FB2A473J CHIP R 47K J 1 10W K2M2 C506 CK73FB1C104K CHIP C 0 10UF K R121 RK73FB2A473J CHIP R 47K...

Page 17: ...1J CHIP R 100 J 1 8W KK1M1 Q50 2SD601A TRANSISTOR R404 RK73FB2A104J CHIP R 100K J 1 10W KK1M1 Q51 2SB1443 TRANSISTOR R405 RK73EB2B104J CHIP R 100K J 1 8W KK1M1 Q52 2SC2412K TRANSISTOR R406 407 RK73EB2B472J CHIP R 4 7K J 1 8W KK1M1 Q52 2SD601A TRANSISTOR R408 RK73EB2B102J CHIP R 1 0K J 1 8W KK1M1 Q53 2SA1036K TRANSISTOR R409 410 RK73EB2B472J CHIP R 4 7K J 1 8W KK1M1 Q54 DTC144EK DIGITAL TRANSISTOR ...

Page 18: ...M2 Q371 UN2214 DIGITAL TRANSISTOR M1M2 HD1 1B T31 0229 08 PLAYBACK HEAD Q450 451 DTC143TK DIGITAL TRANSISTOR Q450 451 UN2216 DIGITAL TRANSISTOR M1 1A T42 1025 08 MOTOR ASSY TH1 PTH9C42BD471Q POSITIVE RESISTOR A1 2D X86 3160 11 FRONT END UNIT 1 2A A10 4328 08 CHASISS CALKING ASSY 4 3B J26 4017 08 PRINTED WIRING BOARD ASSY 5 2A J21 7778 08 MOUNTING HARDWARE 6 2B D10 4091 08 SLIDER 7 2B D13 1323 08 G...

Page 19: ...api 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 KRC 208S K KRC 218S K KRC 268 M KRC 28MR K KRC 288 M TDF TDF Tuner Type CR2 CR2 Frequency Range 87 9MHz 107 9MHz 87 5MHz 108 0MHz Frequenc...

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