Kenwood-KRC-391-Service-Manual电路原理图.pdf

© 2001-10 PRINTED IN JAPANB51-7853-00 (S) 1929SERVICE MANUALCASSETTE RECEIVERKRC-391/391YKRC-36/36Y/30YLOUD SCRL SCAN REP T.CALL M.RDMB.S/RDM MENU TI VOL ADJCLKKRC-391SRCOFF45Wx4AUDDISC Front glass(B10-4127-01)Knob(1-6)(K25-1392-03)Knob(SRC)(K24-3820-04)Knob(FM,AM)(K25-1393-03)Knob(VOL)(K25-1395-03)Cassette lid(A53-1687-03) Panel assy(A64-2538-02)l KRC-391Knob(AUD)(K24-3821-04)Mounting hardware assy(J21-9641-13)Antenna adaptor(T90-0523-05)Lever(D10-4589-04)DC cord(E30-4792-05)Plastic cabinet assy(A02-1486-13)MECHANISM EXTENSION CORDW05-0477-00 (7P)W05-0609-00 (10P) Refer to the PARTS LISTKRC-391/Y,36/Y,30Y2BLOCK DIAGRAMFM ANTAM ANTRF GNDFM+BAM+BAM LO/DXFM LO/DXIF SELECTRDS OUTFM SD OUTREQUESTK2I-VTHVCO-GNDFSD OUTFM DET OUTAM DET OUTIF GNDCOMMON+BP-ON 5VDIG GNDPLL DATAPLL CLKPLL CEHI UP ADJFM+BAM+BA8VSW5VLO/DXSDS-METERPLL-DATAPLL-CESW5VACC-DETBU-DETSCLMUTESDAEN1EN2EN3PANELRESETDSICH MUTE NOISEDATAHDATACREQ HREQ C CH RSTCH CONCH CLKRchCOMLch TAPE L/RMP INAFSQUALAMMPXOUT RROUT LROUT RFLEVELSCLSW5VSDASCLSDAOUT LFSTBYMUTESMUTE510BU5VAFSR QUALR CLKR DATABU5VREMOSW5VGREENREDBU5VPHONEBEEPSVRP-MUTEP-STBYSVRAC GND(BEEP)TAPE L/RPLL-CLKSW5VL-RESL-CLKL-DATASL-DATALMUSICEQ-MUTE MS-CONTMUSICEQ-MUTEMS-CONTFWD/REVPACK INM-STBY T-MODET-ENDL-CE340mVSUB+SUB-RchLchPACKT-ENDM-STBYT-MODEFWDREVAUDIO8VMOTORBU14VSW5VINPLAY HEADSW5VBU14VBU5VBU14VEN1EN2EN3P,CONILLUMB.U.5VAM+BAUDIOFM+BFM+BAM+BAUDIO 8VAUDIO 8VAUDIO 8VBU5VSW5VTAPECD-CHAMFM: 1719mV: 3424mV: 550mV: 1727mVTAPECD-CHAMFM: 1786mV: 3546mV: 850mV: 1345mVAM : 160mVFM : 213mVCD L/R1200mV BU14VCD L/R8RDSANT.DECODERSYSTEM u-COMKEYPAN 5VMUTEE2PROMEQ AMPCD ISO AMPE-VOLLCD DRIVERLCDDSIREMO RST SWPAN IN SWGREENRED orRST ICTEL DET TEL MUTEDRIVERMAINSUBAVRSW5B.U. DETSURGE-DETB.U.ACCP-CONTDC CONNECTORREGULATORACC DETJ2VOLTAGEMUTEPRER-LchR-RchAMPSVRMUTETHERMOPROTECTIONFRONT LchFRONT RchREAR LchREAR RchIC4J4POWER ICTDA7386CD/MDCHANGERSP OUTJ5PRE OUTIC10SUB MOTORDRIVERMOTORDRIVERIC1IC2IC12IC9IC2IC1IC11IC7IC8Q2,3IC6TUNER(X16)(X14)MMTAPE MECHAKRC-391/Y,36/Y,30Y3COMPONENT DESCRIPTIONl SWITCH UNIT(X16-1532/1722-XX)REF.No. FUNCTION OPERATIONIC1 LCD DRIVERIC2 REMOTE SENSORQ1 KEY SCAN SW Receives key signal when the base terminal voltage becomes “L“.Q2 KEY ILLUMINATION SW Key illumination color becomes green when the base terminal voltage becomes “H“.Q3 KEY ILLUMINATION SW Key illumination color becomes red when the base terminal voltage becomes “H“.l SYNTHESIZER UNIT(X14-6892/9002-XX)REF.No. FUNCTION OPERATIONIC1 SYSTEM µ-COMIC2 E-VOLUMEIC4 POWER AMPLIFIER Speaker outputIC6 RDS DECODERIC7 POWER ICIC8 MUTE CONTROL LOGIC 3 input NOR gate x 3IC9 EQUALIZER AMPLIFIER For full logical cassette mechanism controlIC10 SUB MOTOR DRIVER For full logical cassette mechanism sub motor driverIC11 RESET IC Detection voltage below 3.0VIC12 EEPROMQ1 P.CON.DETECTION Detects P.CON voltage.Q10 BACK-UP DETECTION Detects the back-up voltage.Q11 SERGE DETECTION Detects serge voltage.Q20 ACC DETECTION Detects ACC voltage.Q40 PREOUT MUTE DRIVER Mutes when the base terminal voltage level becomes “L“.Q50 5V SW Works when the base terminal voltage level becomes “L“.Q101 DSI SW LED for DSI works when the base terminal voltage level becomes “H“.Q151 PANEL 5V SW Works when the base terminal voltage level becomes “L“. Supplies VDD to panel.Q201 NOISE DETECTION Detects noise.Q221-224 PREOUT MUTE Mutes when the base terminal voltage level becomes “H“.Q251 POWER IC SVR SW Discharges the capacitor's voltage of SVR terminal after the base terminal voltagebecomes “H“.Q301 LOCAL SEEK SW Changes to the local seeking after the base terminal voltage becomes “H“.Q501 MOTOR DRIVER AVR Works when the base terminal voltage becomes “H“. Supplies the power to the motordriver.Q551 MAIN MOTOR SW Works when the base terminal voltage becomes “L“.Q552 MAIN MOTOR SW Works when the base terminal voltage becomes “H“.KRC-391/Y,36/Y,30Y4MICROCOMPUTER'S TERMINAL DESCRIPTIONl (X14-) IC1: µ-COMPORT No. PORT NAME I/O FUNCTION OPERATING CONDITION1 DSI O DSI control.2 PANEL I Panel detection. “L“: Panel exists.3- -4 AVSS - GND.5 L-RST O LCD driver reset.6 L-CE O LCD driver chip enable.7 AVREF1 I Reference voltage8- -9 PLL-DATA I/O Front-end communication data.10 PLL-CLK O Front-end communication clock.11 L-DATA L I LCD driver communication data.12 L-DATA S O LCD driver communication data.13 L-CLK O LCD driver communication clock.14 R-DATA I RDS data.15 R-QUAL I RDS QUAL.16 CH-DATA C I Changer communication data.17 CH-DATA H O Changer communication data.18 CH-CLK I/O Changer communication clock.19 M-STBY I Cassette tape stand-by detection. “H“: Stand-by.20 T-END I Tape end detection. “H“: Run. “L“: Stop.21 ACC-DET I ACC detection.22 BU-DET I Back-up detection.23 IC2 TYPE 0 I For service. “L“: Normally.24 IC2 TYPE 1 I For service. “L“: Normally.25 TYPE 0 I Destination discrimination.26 TYPE 1 I Destination discrimination.27 TYPE REF O Reference voltage for destination and service.28 MOTOR O Cassette mechanism motor. “H“: ON. “L“: OFF.29 PLL-CE O Front-end communication chip enable.30 SD I Station detection. “H“: Station exists. “L“: Station does not exist.31 ASF O Noise detection time constant switch.32 LO/DX O Local seeking switch. “H“: LO. “L“: DX.33 VSS1 - GND.34 P-MUTE O Power amplifier muting.35 SVR O SVR control.36 - - -37 IC2-SCL O E-volume communication clock.38 IC2-SDA I/O E-volume communication data.39 MUTE O Muting control.40 P-STBY O Power amplifier stand-by.41 P.CON-DET I P.CON short-circuited detection.42 CH-CONT O Changer control.43 - - -44 CH-REC H O Changer request.45-47 - - -48 EN2-1 O Power supply IC control.49 EN2-0 O Power supply IC control.50 BEEP O Buzzer.51 EN3 O Power supply IC control.52 EN1 O Power supply IC control.53 SW 5V O P.ON 5V control. “H“: OFF. “L“: ON.54 MUSIC I Tape signal detection. “H“: Signal does not exist. “L“: Signal exist.55 MS-CONT O Tape advanced sensitivity control. “H“: Play. “L“: FF/REW.56 EQ-MUTE O Cassette tape muting. “H“: ON. “L“: OFF.KRC-391/Y,36/Y,30Y5KRC-391/Y,36/Y,30Y6MICROCOMPUTER'S TERMINAL DESCRIPTION TEST MODE / ADJUSTMENT1. 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 thetest mode.2. How to release the test mode Simply reset the unit. (NOTE) The test mode should not released in conditionsof ACC OFF, power OFF, momentary power down orthe panel off.3. Test mode Blanking Skip (B.S) OFF. Eject a tape by pressing “ATT“ key.4. Audio adjustment Enter the audio mode by pressing the “AUD“ key or“OPEN/CLOSE“ key on the remote controller. Set the volume level to be -10dB. In that case, “30“ shouldbe shown on the display. Loudness OFF. The BASS/MIDDLE/TREBLE and BALANCE/FADERcan be adjusted to the full-boost/full-cut and full-front/full-rear each by pressing the “UP“ and “DOWN“ keys.5. Menu mode Enter the menu mode by pressing “CLK“ key or “DNPP“key on the remote controller. Only on models with RDS function, Local Seeking shouldbe first menu.No. ITEMINPUT OUTPUT RECEIVER ALIGNMENTALIGN FOR FIG.SETTINGS SETTINGS SETTINGS POINTSCASSETTE DECK SECTIONHead azimuth Adjust so that output1 AZIMUTHTCC-153SP OUT TAPE PLAYscrew level in playing “FWD“(b)10kHz (FWD/REV) and “REV“ becomes(ME1)maximum each.ADJUSTMENTBALANCE/FADER/BASS/TREBLE : CENTERT.ADV/METAL/DOLBY NR/AUTO : OFF(b) AZIMUTHPANEL FRONTFWD REVTESTMODEPORT No. PORT NAME I/O FUNCTION OPERATING CONDITION57 FWD/REV I Cassette tape running direction detection. “H“: FWD “L“: REV.58 SUB+ O Sub motor control.59 SUB- O Sub motor control.60 RESET I System reset.61 REMOTE I Remote control.62 R-CLK I RDS clock.63 CH-REQ C I Changer request.64 PACK-IN I Cassette tape pack-in detection.65 KEY-REQ I Key signal detection.66 - - -67 VSS0 - GND.68 VDD1 - VDD.69 X2 - Main system clock.70 X1 I Main system clock.71 IC - -72 - - -73 XT1 - VDD.74 VDD0 - VDD.75 AVREF 0 I Reference voltage.76 S-METER I SD detection. “H“: SD exists. “L“: SD does not exist.77 T-MODE I Cassette tape mode detection.78 PHONE I Navi mute: Over 2.5V. Tel mute: less than 2.5V.79 NOISE I Noise detection during FM mode.80 AV CONT O Reference voltage.A B C D E F G IH1234567J4CN1D401D402D404D403D409D411D410DET.ACCD10D11Q11Q10DET.SERGEDET.BACK-UPQ40Q501EQUALIZERAMPLIFIERSUB MOTORDRIVERQ552Q551E-VOLUMECN2MOTORD551AVRMOTOR DRIVERHEADRchLchMAINT-ENDSTBYSUBPACKFWD/REVMHD1MM1M2PLAYIC1 :IC2 : TDA7407DIC4 :IC6 : TDA7479DIC9 : HA12221FIC7 : TDA3682STIC8 : HD74HC27FPQ1,301 : DTC124EUA orQ10,11,20,101,2012SD1819AQ40 : DTA124EUA orQ50 : 2SA1036KQ223,224 : DTC143TUA orQ251 : DTC114YUA orQ501 : 2SD1760Q551 : 2SB1443Q552 : DTC114EUA orD1 :S2V20 AD2,3 : 1GWJ43 (TPB5)D4,551 : AM01Z orD10,11,401,402: MA4068 (N) -MD20 : MA4051 (N) -MD40,101,251-253: B30-1567-05403,404,407,409-411: 1SS133MUTE DRIVERPREOUTJ2D40D20Q20D1 D2D3D4D30Q201DETECTIONNOISEBDRIVEMUTEIC12IC10IC11LB1930MS-80835ANNP: BR24C01AF:Q151 DTA114YUA or:MA4047-M or:D30D102MA4062-L or:D153,154,157,159-161,B-PARTA-PARTTDA73862SC4081 or:UN5112UN5114UN5216UN5214UN52111N5393G-M6 orERA15-01HZS5B1HZS6C1D407TELMUTEB LINEGND LINESIGNAL LINE(X14-689X-XX)CBUN5212CH-INDC-IN/SP-OUT22K22K10K10K3.6V0V0V5V0V8.3V4.1V 4.1V4.1V4.1V0V0V4.1V4.1V4.1V4.1V4.1V4.2V3.8V 3.8V 3.8V3.8V0V5V5V0V5V1V8.0V4.0V4.0V3.8V 3.8V3.8V 3.8V3.8V3.8V3.8V3.8V0V3.8V7.7V5.0V5.0V0V 0V7.6V7.6V0V5V0V5V0V0V5V0V5V5V0V5.0V0V4.1V4.9V0V5.0V2.5V0V3.8VIC2IC9IC10IC8CASSETTE MECHANISM(D40-1150-05)SYNTHESIZER UNIT (X14-689X-XX)(E30-4792-05)DC1DATACGNDREQ HCONMUTES GNDRchRST243812761110159DATAHLchCLKREQ C13R404 100R405 4.7K R406 4.7KR402 10R403 4.7R407 4.7K R409 4.7K R408 4.7KR411 100R410 100R401 10C403 100u10+C402 1u50+C401 1u50+131 32 4 5LGREFVREF CD RR PH-6 7 8CD GND CD L10911 12AFS MPXAM LEVEL MP IN28ACOUT LOUT RLOUT FROUT FLACOUT R2627 25 24GNDVDDOUT RR23 2122QUALS MUTESCLSDA1920 18 17MP OUT1416 15MUX OUT LMUX OUT RFR RRRLFL57630 29 28 27 26 25 24 23 22 21201918171615141312111 2 3 4 5 6 7 8 91031323334353637383940M-OUT (R)EQ OUT (R)D IN (R)RAI (R)PB OUT (R)MS GV (S)MS GV (R)MA OUTMSIMS DETVCCMUSICS/R (MSGV)F/RMTLM-OUT (L) RQ OUT (L) D IN (L) RAI (L) PB OUT (L) MUTENFI (R)R IN (R)RIPF IN (R)F IN (L)V REFR IN (L)NFI (L)12345678910MODEMODE+BSUB(-)SUB(+)PACK INF/RGNDHEAD LHEAD COMHEAD R971u50+C509B.U.4244 16 63181754321SGNDIN2IN1NCVCC678910PGNDOUT2NCOUT1NC4700.01330K 5.1K0.1u50+22u6.3+C514150R5140.01330K 5.1K+R513150C51322u6.3+C517 0.1u5015K1500PR533 470C532 0.01R534 100K470545547u10C501+0.01C50256180KR5020.22u50C505+C5064.7R50157643.3KR20R32 22K10KR30C30 0.011/2W10KR111000PC14R14 82K56KR15100KR1630KR10R415 100KC404 0.01VDDGND1214133121145671098C40 0.017759580.01C50824KR5040.47u50C507+1.6KR50310u10+22R537C533C5349737385 762.2u50+0.01C20247u10+C2014.7uHL201C203 C206 0.015C207 0.47R201 2.7K R202 4.7KR551 10KSTBYT-ENDGNDGND4675231M+BR5521K2019R556 470R554 4701/2WC205 1C204 14.7KR203C209 0.1C208 0.1C211 150PC210 0.03310968754132HEAD RHEAD COMHEAD LGNDF/RPACK INSUB(+)SUB(-)MODE+BMODEMODEFWD/REVPACKM+RGNDT-ENDSTBYGNDR413 100KR414 100KR412 100K1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18B.UB.UB.UGND GND GND T.MUTEP.CONACCA.5 RR- RR+ RL- RL+ FL- FL+ FR+ FR-L1C20 0.01R22 47K47KR21R12 100KR23 100K78 21 22R31 47KRR- RR+ RL- FR+ FR-RL+ FL- FL+3300u16+4.7KC1R535R53622KR5314.3KC515R517 R51912KR515C512 R51215K1500PC511 R511R520R518C51612KR5164.3KR522R521911 1310R27997391KR2044.7KR205C51831274567B5316248REAR.LFRONT.LFRONT.RREAR.RP.CONT OUTACCANT.CONT87564312BATTARED BLU/WHTBLK YELGRN WHT GRYVIOLGRN/BLK WHT/BLK GRY/BLKVIOL/BLK0.220.22 C5310.014.7KR1+BKRC-4902Y (E)KRC-30Y (E)KRC-36 (E)KRC-365L (M)2-710-222-722-70NONONOYESYESNOYESNOYESYESNOYESMODEL NAMEKRC-391 (E)UNITR111C308KRC-465R (M/I) 0-21 YES YES YESA1X86-3512-70X86-3512-70X86-3512-72X86-3512-70X86-3512-70IC1UPD780058GC418UPD780058GC426UPD780058GC418UPD780058GC426UPD780058GC418NONOYESYESNOR112NONOYESYESYESR113+B +B+2V+5V+B+B+B+B+B+5V+5V+5V+B+5V+B+B+B+5V+5V+BYESYESYESYESQ301NO NONOYES YESYESYESNONOYESYESR146R118NOYESYESNONOR114No.KRC-391Y (E)KRC-36Y (E)+B28+2V+2VMUTRST MT+8V+8V+8V+8VDTC114YUADTC143TUAUN5111UN5114UN5211UN5214UN52162SA1036K2SD1819AECB2SD1760BCE2SB1443BCE2SC4081BCEDTA114EUADTA124EUADTC114EUADTC124EUAINGNDOUTDTA114YUA123J K L M N O P RQ1234567KRC-391/Y,36/Y,30YD251 D252 D253Q224Q223PRE OUTJ5J3Q151SYSTEMu-COM5V SWPOWERAMPLIFERQ251D157 D161 D153D159PANEL5V SWMUTEPREOUTIC SVRD160SWQ301Q101D102EEPRONDSIQ50CRESETD101Q1P.CON.DETECTIONRDS DECODERLOCALSEEK SW2/2X16-J1(E30-4933-05)ANTWH1D154POWERPOWERSUPPLYLR4.7K4.7K47K10K47K10K22K22K22K22K0V7.3V 7.3V 7.3V7.3V7.2V0V4.7V14.4V 7.3V 7.2V 7.2V 0V14.4V3.3V0V7.3V7.2V0V0V5V0V0V5V5.0V0V5V2.3V2.3V0V5.0V0V0V 5.0V0V5.0V0V0V5V0V5V0V5V0V0V5V5V0V5.0V5V0V5V0V5V0V5V0V5V0V0V5V0V5V4.3V0V5V0V5V0V0V 0V0V5.0V5V0V5V0V0V5V0V5V5V0V0V5V5V0V5V0V0V0V5V0V5V5V0V0V5V5V0V5V0V5V0V5V0V5V0V0V5V5V0V0V5V5V0VREV : 0VFWD : 5.0V0V5V0V5V5V0V5V0V0V5.0V0V5.0V5V0V4V0V2.5V5V0V1V2.5V1.6V0V5V0V5V0V0V0V5.0V5.1V14.1V10.4V5V 0V0V8.0V8.3V0V13.8V14.4V8.3V5V2.5VIC4A1IC1IC6IC12IC11AIC72 4 6 8 10 12 14 16 18 20 22 24GNDSTBYVCC GND SVRIN2 IN4GND GND VCCMUTEGND1 3 5 7 911 13 15 17 19 21 23 25TABOUT2- OUT2+ OUT1- OUT1+ IN1 GND IN3OUT3+ OUT3- OUT4+OUT4- CD4.7K 4.7KC255 1u50+C256 100u10+R256R255 33K1KR254 R2520.22u50C2540.22u50C251RLRRRR- FR+FR-RR+ RL+FL-FL+ RL-+1u50+8.2KR257R260750R26143035TH1 R258 100 R259 22KR262180K270R224R232100100R231R22327010u16C223R22730KR22830K10u16C224 +C225C258R251 4.7KC2520.22u504.7K0.22u50C253R253RRRLRR FR RLFL123456789101112131415161718192021222324RF GNDFM ANTAM ANTFM+BAM+BFM LO/DXK2I-VTHVCO-GNDFM SD OUTFSD OUTFM DET OUTAM DET OUTCOMMON+BIF GNDHI UP ADJPLL CEPLL DATAPLL CLKP-ON 5VDIG GNDIF SELECTREQUESTRDS OUT52mHL30110118+100u10C3040.01C3051330R3053.3123456789101112131415ILL GNDD GNDL RSTSW5VLAMP +BLED +BL DATA SL CLKL CEL DATA LVDDRSTREMOPANEL SWESD GNDR153 1KR161 1KR154 1KR158 470R156 1KR157 1KR159 1KR162 4712261611133450C257 1u50+Q2514047KR263R160 1005P1R155 100.01C3030.01C302100u10C301 +4.7uHL303L304 4.7uH12R303R304 4.7C308 0.01104.7uHL30529L3064.7uHC30610u160.01+C307AM LO/DXCP101 1K80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61605958575655545352515049484746454443424121 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 401234567891011121314151617181920AVCONTNOISEPHONET-MODES-METER AVREF 0VDD 0XT1 XT2 IC X1 X2VDD 1VSS 0KEY-REQPACK-INCH-REQ CR-CLK REMORESETSUB-SUB+FWD/REVEQ-MUTEMS-CONTMUSICSW5VEN1EN3BEEPEN2-0EN2-1CH-REQ HCH-CONTP.CON-DETACC-DETBU-DETIC2 TYPE 0IC2 TYPE 1TYPE 0 TYPE REF MOTORPLL-CE SD AFS LO/DX VSS 1 P-MUTE SVR GNDIC2-SCL IC2-SDAMUTE P-STBYDSIPANELAVSSL-RSTL-CEAVREF1PLL-DATAPLL-CLKL-DATA LL-DATA SL-CLKR-DATAR-QUALCH-DATA CCH-DATA HCH-CLKM-STBYT-END12345678QUALRDDAVREFMPXOSELGNDARIFIL OUT161514131211109RDCKT57OSCOOSCIVCCEXTRESTMTSEL10PC35610PC355932C354 0.01C353 10u6.3+R354330PC35210u6.3+C351CP3152.2K10CP1041KR132 1K782.2KR1464.7KR1425859575655545352514850R14510K4442R1444.7KCP102 1KCP103 10K22KR1231234VSS8765VCCWPSCLSDA4.7uHL1012561082.2KR1022.2KR10311R104 100K1213R105 2.2KR106 2.2K14151617182019R122 10KR120 10K3738240R143160K4700P22KR141X16.8KR138C10515PC104 15P4.19MHzR135 2.2KR1362.2M6162R137 4.7K2840