Kenwood-KCAR-71-FM-Service-Manual 电路图 维修手册.pdf

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1、 2004-2 PRINTED IN JAPAN B53-0149-00 (N) 2438 FM MODULATOR KCA-R71FM SERVICE MANUAL Size AAA battery (Not supplied) (E type only)(E type only) SRC PWR OFF SRCH/ MENU 123456 SCANRDMREPM.RDMDISP POWER INPUT DISP. INPUT INPUT CONTROLLER FM STEREO MODULATOR FREQUENCY:(MHz) 87.7/87.9/ 88.1/ 88.3 / 88.5 8

2、8.7/88.9 / 89.1/ 89.3 / 89.5 89.7/89.9 KENWOOD CORPORATION MADE IN KOREA Metallic cabinet K type: (A01-2850-08) E type: (A01-2852-08) Remote controller assy K type: (A70-2051-05) (RC-535) E type: (A70-2052-05) (RC-525) Velcro (W01-1633-08) Unit holder (J19-7009-08) Serew (N99-1755-08) x2 Antenna ada

3、ptor (T90-0512-05) Antenna adaptor (T90-0521-05) Cord with plug (E30-6376-08) DC cord assy (E30-6377-08) Panel assy K type : (A64-3412-08) E type : (A64-3414-08) RadioFans.CN 收音机爱 好者资料库 KCA-R71FM 2 BLOCK DIAGRAM RadioFans.CN 收音机爱 好者资料库 KCA-R71FM 3 COMPONENTS DESCRIPTION CONTROL UNIT Ref. No.Applicat

4、ion / FunctionOperation / Condition / Compatibility IC701LCD Driver with Key-matrix IC702Remote Control Light Sensor Q701LED ON/OFF SW Q702Key-matrix Permission SW Q703Remote Control ON/OFF SW FM MODULATOR UNIT Ref. No.Application / FunctionOperation / Condition / Compatibility IC101,102GND Isolatio

5、n AMP IC103Low Pass Filter IC301FM Stereo Modulator IC3021/2 Vcc Driver, ALC Detection Amp IC501System com IC6016V AVR Q102L/R Mixer SWD.cont off : L, D.cont on : H Q103,203ALC Control SW Q151,251Pre-out Mute Q152,153Pre-out Mute Control Q301Composite Buffer Q351Temperature compensation Q303,304Leve

6、l Control SWLEVEL 1/2 : L, LEVEL 3/4 : H, LEVEL 2/4 : L, LEVEL 1/3 : H Q305Audio MutePower on : L, Power off : H Q401,402PLL Low Pass Filter Q411RF Amp Q501Changer Reset SW Q502Reset SW Q601,602Display Unit Power SW Q603Backup 5V AVR Q604,605Power SW Q6068V AVR Q607Relay Driver Q608ACC Detection Q60

7、9Hold Detection RadioFans.CN 收音机爱 好者资料库 KCA-R71FM 4 MICROCOMPUTERS TERMINAL DESCRIPTION SYSTEM MICROCOMPUTER : LC72366-9B63 (FM MODULATOR UNIT : IC501) Pin No.Pin NameI/OTerminal nameDescriptionOperation in HOLD 1XINIX INX_tal- 2TEST2-GNDGround connection terminal- 35PG31ONCNot used (pull down to GN

8、D lines.)L 6PG0IGNDConnected to GND lines.- 7PF3ONCNot used (open)L 8PF2IREQCCD-Changer REQC (Active “Low”)- 9PF1OREQHCD-Changer REQH (Active “Low”)H 10PF0OCHCONCD-Changer ONL 11SI2ICH_DATA_CCD-Changer DATA in- 12SO2OCH_DATA_HCD-Changer DATA outL 13SCK2OCH_CLKCD-Changer DATA SCK (Active “Low”)H 14PE

9、0ONCNot used (open)L 15PD3OLCD DATA outLCD Driver DATA outL 16PD2OLCD CLKLCD Driver CLK outL 17PD1OLCD RESETLCD Driver RESET outL 18PD0OLCD CELCD Driver CE outL 1926PC3PB0ONCNot used (open)L 27PA3ILCD DATA inLCD Driver DATA in- 2830PA20INCNot used (pull down to GND lines.)- 31VDD-Vdd5V- 32PQ0ONCNot

10、used (open)L 3344PP3PN0OGAIN121Modulation output switchingL 45PM3OSEP-ATTWhen it has GAIN5 output, “Hi” outputL 4652PM2PL0ONCNot used (open)L 53PK3ORELAYAntenna relay control output terminalL 54PK2OP-onP_ONL 55PK1OMUTEMute output terminal for the Tuner frequency changeL 56INT0IREMOCONRemote controll

11、er signal input 5760PJ30ONCNot used (open)L 6166PI1PH0INCNot used (pull down to GND lines.)- 67HOLDIHOLDACC detection (Operation in HOLD “Low”)L 68SNSIVddVdd- 69LCTRINCNot used (pull down to GND lines.)- 70HCTRINCNot used (pull down to GND lines.)- 71EO3ONCNot used (open)Hi-Z 72SUBPDONCNot used (ope

12、n)Hi-Z 73VDD-VddVdd- 74AMININCNot used (pull down to GND lines.)- 75FMINIVCO inVCO input- KCA-R71FM 5 Pin No.Pin NameI/OTerminal nameDescriptionOperation in HOLD 76VSS-VssVss- 77EO2ONCNot used (open)Hi-Z 78EO1OError outPhase Detector Error outputHi-Z 79TEST1-NCNot used (pull down to GND lines.)- 80X

13、OUTOX-outX-tal MICROCOMPUTERS TERMINAL DESCRIPTION ADJUSTMENT Instrument : SSG, OSC (5MHz), AC VOLTMETER, PWR SUPPLY, H/UNIT, CD-CH RECEIVER ALIGNMENT No.ITEMINPUT SETTINGSOUTPUT SETTINGS(MODULATOR) POINTS ALIGN FORFIG. FREQ L/R BalanceCD-CH cignal off Connect a 1 Adj.(Tr No.29 or Pause) Oscilloscop

14、e88.3MHzVR301Min Level(a) to Q301 Base. 1. Ref.FM 1kHz 80dBVConnect a Difference between 2 Moduration Stereo, CD-CH Tr No.1AC voltmeter88.3MHzVR302 FM and a CD-CH level Adj. 2. D.Cont Off MOD Lv:2to Receiver PreOut level is adjusted to (-0.51.0dB). * After Adj. The glue is applied to VR301, VR302. (

15、Scope Setting Condition for L/R BAL. Adj.) 1. VOLTAGE RANGE : 5mV 2. TIME/DIV : 50s Adjusted to be min level point (Before Adj.)(After Adj.) Fig. (a) KCA-R71FM 6 ABCDE 1 2 3 4 5 6 7 PC BOARD (COMPONENT SIDE VIEW) R202 C202 R203 R102 C102 R103 C105 C205 C317 R104 5 8 4 1 5 8 4 1 5 8 4 1 5 8 4 1 25 40

16、 80 55 241 4154 1 7 14 8 C104 R322 R323 R121 C505 C115 C519 C520C504 C521 R536 R501 C552 R552 3512 874 13 912 85 14 6 C506 R503 R502 R551 C551 BE EB G D S G D SG D S GS D GS D GS D BE BE BE BE EBEB BE BE BE EB EB E B EB EB BE EB EBEB R531 R306R310 R318 R316 R353 R602 R352 R355 R321 R308 VR302 R356 R

17、401 3 3 1 2 1 1 R151 R405 J403J401 J402 C403 C411 C412 R413 C413 R411 VC401 R451 R414 R412 C451 RY401 LUG1 C608 R614 R613 R611R612 R607 R351 R603 C651 IO G R617C652 R651 C522 C501 X501 C502 C518 C517 R534 C566 R516 R515 R514 R513 R512 R511 R521 R517 R520 R518 R519 R522 C565 C564 C563 C562 C561 R608

18、R604 R605 R606 C604 R601 L601 C421 C419 C607 C420 C416 R403 R407 C417 C414 C418 R252 R309 R311 R314R307 C307 R204 R207 R205 R107 R105 C106 C103 C203 C313 C315 R325 C314 C306R324 C602 C603 C118 C120 C309 C304 C312 R220 C214 R215 R217 R118R117 R115 C114 R120 C308 R302 X301 R406 R404 R402 C415 C404 R15

19、2 R153 R154 R254 R155 R255 C154 C254 R301 R303 R304 C303 C302 VR301 C153 C253 C405 C402 C401 R116 R108R112 C107 R113 C108 R110 R210 C207 R212 R208R209 R327 C208 R213 C209 C212C218C220C301 C112 R109C109 Q501 STK402 FM MODULATOR UNIT IC501 Q603 SC501 ZD601 Q609Q608 IC601 D602 Q304 IC301 Q203 Q103 IC10

20、3 IC102IC101 D201D101 Q102 Q301 Q303Q351 Q305 Q605Q607Q604 D604D601 D603 PN601 Q606 PN302 PN301 Q401Q402 Q411 Q152 Q153 Q151 Q251 STK101 RL LINE OUT D605 Q601 Q602 ZD602 ZD603 IC302 D301 Q502 STK401 ZD518 ZD516 ZD515 ZD514 ZD513 ZD512 ZD511 FM MODULATOR UNIT Ref. No.Address IC1013B IC1023B IC1034B I

21、C3014B IC3023B IC5013C IC6014D Q1024B Q1034B Q1516A Q1526A Q1536B Q2034B Q2516B Q3014B Q3035C Q3044C Q3055B Q3515C Q4016C Q4026C Q4116C Q5012C Q5022C Q6015D Q6025D Q6034D Q6045D Q6055D Q6065D Q6075D Q6084D Q6094D Refer to the schematic dia- gram for the values of resis- tors and capacitors. KCA-R71F

22、M 7 JIHGF 1 2 3 4 5 6 7 PC BOARD (FOIL SIDE VIEW) FM MODULATOR UNIT KCA-R71FM 8 KLMNO 1 2 3 4 5 6 7 PC BOARD (COMPONENT SIDE VIEW)(FOIL SIDE VIEW) C709 C708 C710 EJECT 123456 DISP VOL+ VOL- SRC 1 3 19 6846451 CN701 D701D708 D707D710D709D712D711D714 D704 D716 D706 D715 D705 IC702 D702 D713 D703 CONTR

23、OL UNIT C701 R701 R729 R730 R731 R733 R732 R726 R727 R711 R712 R713 R714 R715 R719 R707 76100 50 75 51 1 25 26 R708 R751 BE B E B E R709 R710 R734 C711 R705 R703 C703 R720 C704 R716C707R725 R717C706R724 R718 C705 R722 R737 R723 R728 R735 R736 C702 R702 R704 R706 D717 D718 D719 D721 IC701 Q703 D722 Q

24、701 D720 Q702 CONTROL UNIT CONTROL UNIT Ref. No.Address IC7014O Q7016O Q7023N Q7035O CONTROL UNIT Ref. No.Address IC7027L Refer to the schematic diagram for the values of resistors and capacitors. KCA-R71FM 9 Chip capacitor CodeLWT Empty5.60.55.00.5Less than 2.0 A4.50.53.20.4Less than 2.0 B4.50.52.0

25、0.3Less than 2.0 C4.50.51.250.2Less than 1.25 D3.20.42.50.3Less than 1.5 E3.20.21.60.2Less than 1.25 F2.00.31.250.2Less than 1.25 G1.60.20.80.2Less than 1.0 H1.00.050.50.050.50.05 Chip resistor CodeLWT E3.20.21.60.21.0 F2.00.31.250.21.0 G1.60.20.80.20.50.1 H1.00.050.50.050.350.05 Rating wattage Code

26、WattageCodeWattageCodeWattage 1J1/16W2C1/6W3A1W 2A1/10W2E1/4W3D2W 2B1/8W2H1/2W (Less than 10pF) CodeBCDFG (pF)0.1 0.25 0.512 CAPACITORS C C4 5T H1 H2 2 0J 123456 1 = Type . ceramic, electrolytic, etc.4 = Voltage rating 2 = Shape . round, square, etc.5 = Value 3 = Temp. coefficient6 = Tolerance Tempe

27、rature coefficient 1st WordCLPRSTU Color*BlackRedOrange Yellow GreenBlueViolet ppm/C080150220330470750 Tolerance (More than 10pF) CodeCDGJKMXZPNo code (%)0.25 0.5251020+40+80 +100 More than 10F : 10+50 20200Less than 4.7F : 10+75 Voltage rating 2nd wordABCDEFGHJKV 1st word 01.01.251.62.02.53.154.05.

28、06.38.0 11012.516202531.54050638035 2100125160200250315400500630800 31000 1250 1600 2000 2500 2150 4000 5000 6300 8000 CHIP CAPACITORS (EX)C C7 3FS L1 H0 0 0JRefer to the table above. 12345671 = Type (Chip) (CH, RH, UJ, SL)2 = Shape 3 = Dimension (EX)C K7 3FF1 H0 0 0Z4 = Temp. coefficient 12345675 =

29、 Voltage rating (Chip) (B, F)6 = Value 7 = Tolerance RESISTORS Chip resistor (Carbon) (EX)R D7 3EB2 B0 0 0J 1234567 (Chip) (B, F) Carbon resistor (Normal type) (EX)R D1 4BB2 C0 0 0J 1234567 (Chip) (B, F) 1 = Type . ceramic, electrolytic, etc.5 = Voltage rating 2 = Shape . round, square, etc.6 = Valu

30、e 3 = Dimension7 = Tolerance 4 = Temp. coefficient CC45 Color* 2nd WordGHJKL ppm/C3060120250500 Example : CC45TH = 47060ppm/C Capacitor value 010 = 1pF220 = 22pF 100 = 10pF 101 = 100pFMultiplier 102 = 1000pF = 0.001F2nd number 103 = 0.01F1st number L W T Dimension KCA-R71FM 10 ABCDE 1 2 3 4 5 6 7 IC

31、103 (2/2) L.P.F. (1/2) IC103 (2/2) D201 IC101 Q103 Q203 (2/2) IC102 FM ST MODULATOR D101 ISO (1/2) IC101 (1/2) IC102 Q102 CHANGER to SKT402 u-COM SKT401 ZD516 ZD515 ZD514 ZD512 ZD513 ZD518 ZD511 Q501Q502 Rch LINE OUT Lch Q251 Q151Q152 Q153 KIA7806AF CO5532A LC72366 NJM2035M :IC601 :IC101-103,302 IC3

32、01 IC501 : : D101,201,301 D601-605 ZD511-516,518,601,602 VC401 : KTC4374-YQ606 Q411 Q601,605 Q604,607 Q401,402 Q102,103,203,303-305 Q151,153,251,301,351,603 Q152,609 KTA1505S-Y KTC3879S-Y KTC4080-O: KRC103S : : : KRA105S KTK5134S KTC3875S-Y : : : KDV1472 KDZ5.6EV: : 1N4004A KDS122: : ZD603KDZ8.2EV:

33、KRC110SQ501,502,602,608: MUTE STK101 6 5 R210 10K 4700P C207 6.8K R209 4700P C107 6.8K R109 4 R213 6.8K 180P C208 6.8K R212 5 6 7 22u25 C212 2.2K R215 86.8K R113 180P C108 6.8K R112 3 2 1000P C202 R204 + 10K 1 22u25 + C112 2.2K R115 5 6 7 R205 10K IN2 75K R220 C214 C218 0.22 4.7u50 C220 C301 IN1 1 2

34、 75K C114 R120 C118 10K 7 0.22 + 47u50 14 C120 3 2 1.5K R102 0.1 220u10 C104 C105 220u10 C205 1000P C102 + R104 10K 2 3 4 8 1 R105 10K R107 10K R208 10K R108 1 10K R207 8 4 0.015 C209 470 R217 3.6K R116 470 R117 R118 2.2K C115 1 R121 47K 13 R304 IC301 NCNC 4 3 2 1 13 128 117 106 95 C501 CH DATA C PO

35、W 0.047F16 S RE 21 C504 32 31 30 29 28 27 26 25 SC501 + 24 23 22 VDD 5V LCD DATA IN 39 38 37 36 35 34 33 0.022 39 GAIN4 GAIN5 GAIN6 GAIN7 GAIN8 GAIN2 GAIN3 16 LCD CE LCD RESET LCD CLK 20 19 18 17 LCD DATA OUT CHCLK CH DATA H 15 14 13 12 RE FM IN EO1 9 CHCON REQH 11 10 REQC 8 7 4 6 5 3 2 73 4.5MHz 79

36、 80 1 74 75 76 77 78 EO2 AM IN VSS 33P X501 C502 22P C505 1 67 68 69 70 71 72 EO3 VDD 5V SNS LCTR HCTR HOLD 1 2 5 4 3 8 7 6 R536 100K C566 100P C565 100P C564 100P R534 100K C562 100P C563 100P C561 100P R531 100K C520 100P C522 100P 100P C519 100P C521 3.3K R511 1K R512 4.7K R513 3.3K R514 1K R515

37、3.3K R516 1K R517 R518 220 R519 1K R520 1K 100P C518 4.7K R522 10K R503 10K R502 R552 10K 100 R155 10u25 + C253 10u25 + C153 470 R152 100 R255 470 R252 10K R151 R551 10K C551 0.1 C552 0.01 R501 10K 100P C517 1K R521 10K R110 1u50 + C106 220u10 + C317 4.7u50 C203 10K R153 4.7u50 C103 R203 6.8KR103 6.

38、8K 1.5K R202 470P C154 470P C254 47K R154 47K R254 1000u16 C506+ 0.015 C109 + IC501 FM MODULATOR UNIT KCA-R71FM ONLY 4.7K4.7K 4.7K 2.2 3.8V 3.8V 0V 3.8V 7.1V 7.1V 3.8V 3.8V 5.4V 2.1 5.4V 5.4V 5.4V 7.7V 3.8V 3.8V 2.1 5.1V 5.1V 7.7V FM MODULATOR UNIT (1/2) KCA-R71FM 11 JIHGF 1 2 3 4 5 6 7 FM MODULATOR

39、 UNIT (2/2) LATOR D301 (1/2) IC302 Q303 Q351 Q301 Q304 Q305 (2/2) IC302 VC401 Q411 Q401 Q402 ZD603 Q604 Q606 Q607 D604 ZD602 D603 Q608 Q605 ZD601 D602 Q603 D601 Q601 PN601 PN302 RADIO PN301 to CAR ANT D605 ACC BATTERY 2/2 CONTROL UNIT -CN701 GND LINE B LINE SIGNAL LINE Q609 Q602 1/2 VCC RF LPF 8V AV

40、R BU 5V AVR 6V AVR IN2 .7u50 C220 C301 10u25 IN1 1 2 + 47u50 14 12 C120 V+ MPX OUT PILOT 6 4 + 3 GND AC 5 X301 38kHz C X 7 VR301 11 10K 10 9 8 C315 3300P 3 2 4 8 1 13 10K R304 10K R303 15P C303 TRIM TRIM NCNC BYPA AC BYPA C302 100P 1.5M R308 470P C308 R352 3.3K R355 18K R351 22K 680 R353 3.3K R316 6

41、.8K R318 2.2K R356 10K VR302 68K R307 470 R309 330 R311 4.7u50 C309+ 180P C307 6 5 7 6.8K R306 0.033 C306 100u10 C313 + 10K R322 10K R324 150K R325 R323 10K 33P C314 40 39 POWER ON SEP-ATT RELAY ON 40 39 38 37 40 39 GAIN4 GAIN5 GAIN1 GAIN2 GAIN3 44 41 42 43 49 45 46 45 47 48 50 51 52 53 MUTE REMOCON

42、 C505 1 67 68 69 SNS LCTR HCTR 65 66 HOLD 56 54 55 57 58 61 59 60 62 63 64 R404 100P C403 10K R406 10K R405 22u25 + C401 + C402 2.2K R402 12P C404 470P C414 15P C413 390 R451 100P C418 1.5K R414 15P C411 15K R411 0.022 C416 22K R401 560 R403 4.7u50 C405 + 10u25100K 220 R412 1.5K R413 15P C412 220u10

43、 C415 + 220u10 C417+ 220u10 C607 + 1K R613 R614 1K 0.1 C608 4.7K R612 10K R606 R605 10K 10K R604 100u10 C603 + 4.7K R603 10K R601 1000u16 C602 + 100uH L601 INOUT GND 4.7K R602 10K R611 R608 4.7K R607 4.7K 0.1 C604 GND 3 BATT FUSE1 3A 2 ACC FUSE2 3A 1 560 R310 + C304 1.5K R302 220u10 45 100 R407 1K R

44、301 R327 4.7 RY401 2 3 2 1 1 33P C419 0.022 C420 C421 470P 0.1 C651 R314 2.2K 22K R321 47u10 C312 + C652 1 470 R651 47K R617 470P C451 OUT KCA-R71FM KDC-C521FM KDC-C471FM DESTNATION E J,E J680P 214 C114, 1000P KDC-C471FM KDC-C521FM KCA-R71FM K,M K K + IC301 IC601 KCA-R71FM (1/2) A 22K 22K 22K 22K 4.

45、7K 4.7K 2.2 4.7K 2.1V 2.5V 1.1V 0V 0.5V 1.3V 2.6V 1.7V 3.9V 7.7V 2.1V2.1V 3.9V 3.9V 3.9V 13.5V 7.7V 13.5V14.4V 5.1V 13.5V 5.9V 5.7V CAUTION : For continued safety, replace safety criti- cal components only with manufacturers recom- mended parts (refer to parts list). Indicates safety critical compon

46、ents. To reduce the risk of electric shock, leak- age-current or resistance measurements shall be car- ried out (exposed parts are acceptably insulated from the supply circuit) before the appliance is returned to the customer. DC voltages are as mea- sured with a high imped- ance voltmeter. Values m

47、ay vary slightly due to variations between indi- vidual instruments or/and units. KCA-R71FM 12 KLMNO 1 2 3 4 5 6 7 CONTROL UNIT (1/2) 1 2 3 4 5 6 7 8 9 GND DO RESET +6.0V REMO CE CLK DI KS6 74 KS3 KS2 KS3 KS2 73 72 KS5 KS4KS4 KS5 75 REMOON S2S2 S3 S4 4 2 3 S4 S3 95 78 KI1 KI2 77 76 KI3 79 KEYON KI5

48、KI4 81 80 ILLUMI 84 83 82 90 87 VDD VLCD 85 86 VLCD2 VLCD1 VLCD0 88 89 VSS VLCD3 VLCD4 91 92 TEST OSC 94 93 S1 98 CE DO INH 96 97 CLK 99 DI 100 1 S1 R729 470 R730 470 R731 1K R733 1K R732 470 47u16 C709 + 2 1 3 10u16 C710 + 0.022 C711 INH 47K R720 680P C704 4.7K R722 C706 0.1 0.1 C705 4.7K R723R724

49、4.7K 10u16 C708 + R726 4.7K R725 4.7K R735 10 R728 10 R734 1K 100 R736 KI4 KI2 KI3 KI1 R727 47K 1K R751 S3 S3 16 23 24 27 S25 S26 S24 S27 S24 S25 S26 25 26 S20 S22 S23 S21 S19 S17 S18 S20 S21 S22 S23 21 22 20 S17 S19 S1818 19 17 S13 S15 S16 S14 S12 S10 S11 S13 S14 S15 S16 15 13 14 S10 S12 S11 11 12 10 S8 S9 S7 S5 S6 S4 6 S8 S99 8 S77 4 S5 S6 5 S4 3 S1 S2 S1 1 S22 13 6 3 1 2 4 5 8 7 9 11 10 12 20 14 16 15 18 17 19 21 23 22 25 24 26 27 47K R737 85 7 6 4 3 2 1 C707 0.1 390 R704 330 KCA-R71FM KDC-C521FM KDC-C471FM K,M K,E K,E DESTNATION KDC-C521FM KCA-R71