Grundig-RRCD2420MP3-tr-sm维修电路原理图.pdf

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1、Service DocumentExchange SetEs gelten die Vorschriften und Sicherheitshinweisegem dem Service Manual Sicherheit, Material-nummer 720108000001, sowie zustzlich die even-tuell abweichenden, landesspezifischen Vorschrif-ten!The regulations and safety instructions shall bevalid as provided by the Safety

2、 Service Manual,part number 720108000001, as well as therespective national deviations.SSServiceManualSicherheitSafetyMaterialnr./Part No.720108000001?RRCD 2420 MP3Dieses Service Dokument ist nur in Datenform verfgbarThis Service Document is only available as datanderungen vorbehalten/Subject to alt

3、erationMade by GRUNDIG in Germany HS-41 0305http:/RadioFans.CN 收音机爱 好者资料库RRCD 2420 MP3?INSTRUMENTS REQUIREDGENERAL PREPARATION1. Signal Generator1. Check source voltage, DC or AC according to specificaions2. FM Signal Generator2. Set function switch to band being aligned3. FM/AM IF Sweep Generator (

4、10.7 MHz for FM)3. Signal input should be kept as low as possible to avoid AGC and AFC function4. VTVM4. Standard modulation : AM 1 KHz 30% mod5. OscilloscopeFM 1 KHz 22.5 KHz dev6. Frequency counter7. Regulated DC power supplyAM IF ALIGNMENTSTEPSIGNAL SOURCE (AM RF Gen.)CONNECT TOSET SIGNALTOALIGNM

5、ENT INDICATOR (Oscilloscope, VTVM)CONNECT TOSET RADIODIAL TOADJUSTADJUST FORREMARKSTP3A standard radiation450KHz Detector output terminalQuietVolume control at1loop and ground (TP4)PointT601Maximummin. position2 Repeat step 1 for max. outputFM IF ALIGNMENT This model requires no FM IF alignment as t

6、he IF is fixed by ceramic filter and discriminator CF502 or CF503 & CF505. Please take note that correct type and same color dot of ceramic filter is usedin servicing, diff color dot of ceramic filter may cause worse IF S curve characteristic and distortion. Connect IF genescope output terminal to T

7、P3 & TP4 (GND) in series with a 1000Pf capacitor, connect scope input terminal to TP1 & TP2 (GND), then the IF characteristic curve can be observed. A L I G N M E N T P R O C E D U R ESTEPSIGNAL SOURCE (FM Signal Gen.)CONNECT TOSET SIGNALTOALIGNMENT INDICATOR (Oscilloscope, VTVM)CONNECT TOSET RADIOD

8、IAL TOADJUSTADJUST FORREMARKS87.5 MHz87.5 MHzNANADigital DC1(modulated)(Lowest end)Volt meter isL604 (Osc. Coil)Connected toTP1 & TP2108 MHzTerminals108 MHzstretch orDC 8V 0.3V TP 5 and grg2through matching network(modulated)across speaker (Highest end)squeezeif necessaryvoice coilL601 (RF coil)388

9、MHz88 MHzstretch orVolume(modulated)squeezeMaximumcontrol at106 MHzTC 601max. position4(modulated)106 MHz (RF trimmer)5 Repeat steps 3 and 4 as necessary to minimize tracking error and also steps 1 and 2 if necessaryAM RF ALIGNMENTSTEPSIGNAL SOURCE (AM Signal Gen.)CONNECT TOSET SIGNALTOALIGNMENT IND

10、ICATOR (Oscilloscope, VTVM)CONNECT TOSET RADIODIAL TOADJUSTADJUST FORREMARKS522 KHz522 KHzDigital DC1(modulated)(Lowest end)NANAVolt meter is1620 KHz1620 KHzL 605Connected to2A standard radiation(modulated)Across speaker(Highest end)(Osc.Coil)DC 8V 0.3V TP 5 and grgloop ant.603 KHzvoice coilL 603Vol

11、ume3(modulated)603 KHz(ant. coil)Maximumcontrol at1404 KHzTC 603max. position4(modulated)1404 KHz(ant. trimmer)5 Repeat steps 3 and 4 as necessary to minimize tracking error and also steps 1 and 2 if necessary Applicable unit :1This model is using CD drive unit No. SANYO DA11B3V2The alignment for CD

12、 section is fully automatic and no adjustment is reguiredFM RF ALIGNMENTALIGNMENT PROCEDURE FOR CD SECTION1 ) Check source voltage, DC or AC according to specifications .2 ) Set function switch to Tape being aligned . A ) MEASURING INSTRUMENTS REQUIRED FOR TAPE B ) EQUIPMENTS REQUESTED FOR AC BIAS F

13、REQUENCY / CURRENT ADJUSTMENT : SPEED AND HEAD AZIMUTH ADJUSTMENT. ( 1 ) TAPE SPEED ADJUST MTT-111 (3000 Hz) TEST AC BIAS FREQUENCY ALIGNMENT : Note :The test unit should be keep in recording mode and added two resistors Ra & Rb as shown in the Fig. 2 before alignment. be sure to delete the both res

14、istors Ra & Rb after alignment completed. ( 2 ) HEAD AZIMUTH ADJUSTMENT .Test PointAdjustFrequencyFrequency Observe atObserve 2.1 - Connect the equipments as shown in the Fig. 1.at Beat 0Beat 1Beat 2Beat 0Beat 1Beat 2 (The Both Speakers loading Are Required) Resistor 2.2 - Insert a test tape ( 10 KH

15、z : MTT-114 ) into deck.Ra or RbL40160KHz 0.3KHz54KHz 2KHz 2.3 - Press PLAY and set VOLUME at reference output. 2.4 - Adjust the azimuth adjustment screw for the max. & balance ch. output on both ch. of oscilloscope. 2.5 - Secure above screw with glue after adj. completed. GENERAL PREPARATION - = TO

16、 CASS PCB CN401 60KHz1 Ra10 ohm Rb10 ohm4INPUTOUTPUTVTVMFREQUENCY COUNTERFIG.2 R/P HEADMOTOR SPEAKERTERMINALS AZIMUTH ADJ. SCREWTAPE IS REQUIREDR/P HEAD OSCILLOSCOPECH. 2 3000 HzCH. 1 FREQUENCY COUNTERFIG.1RadioFans.CN 收音机爱 好者资料库RRCD 2420 MP3?TUNER IC601 TB2132FN 5V REG Q111 Q113 FUNCTION SELECTOR S

17、W 301 TAPE R/P IC401 LS22241 MCU U701 TC94A09E-209 MUTING CIRCUIT Q207 Q208 POWER AMPLIFIER IC101 DV3287BCD SERVO SYSTEMU702 TC94A02F U703 TA2153FN U706 MM1469PH 3.3V REG U708 B1117N DISPLAY MAIN POWERSUPPLY D501 D504 SPEAKER 5.7 L-CH R-CH FM ANT. R/P HEAD POWER SWITCH Q105 6.5V REG Q105Q109 CD POWE

18、R SUPPLY SW. Q701 Q702 Q7055V REG U709 7805IM SRAM U705 CD MECHANISMDA11B3V BATT 1.5V X 6 AUDIO CONTROL VR301 Q301 Q302 RRCD 2420 MP3?RRCD 2420 MP3?RRCD 2420 MP3?RRCD 2420 MP3?RRCD 2420 MP3?123456789101112131415302928272625242322212019181716IC601TB2132FNX175KHZC62820PC62920PR60912KR60812KC6243n3(M)C

19、6253n3(M)+C6271u+C6261uR6114K7R6104K7R61210KR61310KL60372:30TTD603SVC384TC603T10PL602*TC602*C605*TD602*C604*L6014.5X3T5TC60110PC60220PTD601SVC201C6011nC603100nR60147KR602*R60347KL6044X2T5C607*TD604SVC201R60447KC60620P3164L6057AL-369SOC609330PC60868PC6108PC64210nR605100KC630100nD6031N4148L608100uHR62

20、0 5K6R6215K6Q6039014CQ6049014CR6242KR6251K5C640100n+C63910uR623390R6223K346321T6027076AC63515pD6041N4148R6154K7C63320n+C63447uQ6019014CQ6029014CC63720PC63220n+C63110uL607100uHC636 22pR617 68KR61939KR618820KR61633C63810nD6051N4148R62610KFMRTVRVDDAMRFMOAMOCECLKDAP+DOFBFAPGXOC6431nC647100nC646100n123CN

21、5013PINSLchRchGNDTO FUNCTION BOARDR7371K12345678910111213CN71313PINSC1C2C3C4S1S2S3S4S5S6S7S8S9R70410KR7034K7R7934K7R79410KSANYO DA1 1VTUNER BANDAREA=GEN2PUH SELECTR79510K12CN7082PINSR801 10KR80210KR79622KTO CD DOOR SWC4R80547KR80647KD7044148D702IN4001L71047uH+C713470uR79210K+C702470u+C701470uL70947u

22、HR7562K2R7552K2R754 2K2R7584K7R759 4K7R7574K7AD00AD01AD02AD03R705L=FUNMCU+5VSTEREOMUTEFUNCATUNERCDTAPE011DGND+7VK04DOWN/REWK03UP/FFK02STOP/BANDK01PLAY/PAUSER032K7R022KR011K5R07390D01LEDK06PROG/MEMK08DIR/M.DNK07DIR/M.UPK05MODER062K7R052KR041K51234CN024PINSAD2AD1DISPLAY& KEY BOARD12CN032PINSPow. on le

23、d board12CN03A2PINSPLL-CEPLL-DATAPLL-CLKFUNC-BFUNC-A1234CN7104PINSDGND+7VAD2AD1AD2AD1REMOTEBACK-UPL-CHGNDR-CHGNDR-OUTL-OUTR305220KR306220KR3074K7R3084K7C30522n(M)+C307u47+C308u47C30622n(M)Q3019014CQ3029014C123CN3083PINSR30447KR3142K7C3101n(M)R3132K7C3091n(M)R30939KR30347KR31039KR31210KR31110KR-C123C

24、N1063PINSGNDL-CC31368n(M)C31468n(M)C311600p(M)R30130KR30230K1234567CN3047PINS123SW302A2P2TDOFFON456SW302B2P2TDOFFONR3151K2341SW301A4P3TDRATAPECD1011129SW301C4P3TDRATAPECDMAIN+6V5CONTROLGNDR/CHL/CHCD-RGNDCD-LR14614151613SW301D4P3TD6785SW301B4P3TDRATAPECD+C3154u72314VR301A50KB5617VR301B50KB123CN3033PI

25、NS12345678CN1029P/WF12345678CN3019PINSSW204LEAF SWITCH123CN104A3PINS3PINSA-+M2016V MOTORR1481KD1101N4148Q1149013/HR14910KC13847u6VL/CH PL/CH RR/CH RR/CH PGNDGND123CN3023PINSLchRchGNDCASS V+MAIN+6V5GNDCASS V+TO CASS BOARDRFOM CD AF OUTFROM TUNER AF OUTTuner V+CD V+R316100R3172K2GNDREMOTEMCU 5VC31647u

26、C31720nRMC OUT1GND2VCC3IR301*Tuner V+CD V+GNDREMOTEREMOTE V+C312600P(M)JPG206JP123CN3053PINS123CN305A3P/WF123CN307A3P/WF123CN3073PINS1234CN306A4P/WF1234CN3064P/2mmJP301JPJPG302JPJP303JPJP304JPJP305JPJP208JPR/chL/chR318100R319100R3208K2R3218K2C301u47C302u47C304u47C303u47123CN1043PINS3PINS123456789101

27、11213CN0113PINS18 : 8. 8123456789101112131415LCD0115PINS123CN309A3PINSC61330PC612 30PC61130PL6064.5X3T546321T6017AL-321FCF602SFE10.7MS3CF601SFE10.7MS3CF603SFU450BC618330PCF604CDA10.7M7GA128C619 20n+C6200.1uR6073K3C621100nC62310nR606330C62210nD6011N4148D6021N4148R614100RLLPF2ZD6013V3FMRTVRVDDAMRFMOAM

28、OCECLKDAP+DOFBFAPGXOXILPF1MPXDETQUADAIFVCCFIFAGCMIXGNDANTR628220KC645*Q6059018F12CN6022PINSR6325K612CN602A2PINSSW5012P2TST/MOFMFM ANTJP607JPC648100PC649*C6411nC615100nC616220uC61422uC61710uR6271KQ6069013/HC65010uC651220uR63310KD111IN4148D112IN4148D113IN4148D114IN4148D115IN4148D116IN4148D117IN4148D12

29、1IN4148D122IN4148R15127KR15010KR15227KR15327KR15410KR15527K123CN3093PINSRATAPECDQ1159014/cQ1169012/HZD1014V7JP605JPJP216JPJP213JPJP211JPJ786JPJ217JPJ218JPJ212JPJP212JPJP609JPR6355K6JP744JPJP745JPJ211JPR15739KQ1189014/CQ1179014/CR160330KR1592M2R161330R158390KJP746JPJR723JRJR720JRJ775JPJ776JPJ777JPJ78

30、8JPJ787JPJR717JRJR716JRJR710JRR62982R63610RRCD 2420 MP3?DM-12GND213OPOUT14OPI-15OPI+16TR-17TR+18TRO19(TRO)20VCC121VCC222BIAS23(FOO)24FM-1FM+2FMO3(FMO)4TRB5TREG6MUT7GND8(DMO)9DMO10DM+11FOO25FC+26FC-27GND28GND329GND430U706MM1469PHAD012IO113IO214IO315GND16IO417IO518IO619IO720IO821CE122AD1023OE24NC1AD16

31、2AD143AD124AD75AD66AD57AD48AD39AD210AD111AD1125AD926AD827AD1328WE29CE230AD15313V332U7051M SRAM (SOJ)2VRO12TEN13TEO14SBAD15FEO16FEN17SEB18VRO19RERP20BTC21RFCT22PKC23RFRPIN24VCC31RFGC2GMAD3FNI4FPI5TPI6TNI7MDI8LDO9SEL10TEB11RFGO25GVSW26AGCIN27RFO28GND29RFN230U703TA2153FNSDIo12BCKiO13LRCKiO14AD515CE16OE

32、172V518STANDB Y19VSS20VSSL21VRAL22AD1033LD232V5L242V5R25RO26VRAR27VSSR28TESTP29CKS30AD1231AD1132AD9343V3T35AD836AD737AD638REQ39VSS40AD1341AD1442WR43AD1644RESET1MIMD2AD03AD14SDA5SCL6AD273V3T8SDo9AD310AD411AD1545io046io147GND48io249io350io4512V552io553io654io755GNDP56Pdo57Vco1582V5P59Cko602V5X61xi62xo

33、63GNDX64U702TC94A02F-007S1212S1313LRCK14BCK15DATA16DOOR-SW17INNER-SW18+5V19GND20POWER OUT21CDRW/STEREO22PLLDATA33FUNCT A23FUNCT B24EQ125KEY-AD126KEY-ED227TUNER BAND28PUH SELECT29REQ30SDA31SCL32PLL-CLK34PLL-CE35EQ236FUNT IN/OUT37VOL-DN39VOL-UP40MUTE41DECODER RESET42DOUT43SBSY44SBOK45S11S22S33S44S55S6

34、6S77S88S99S1010S1111+5V46GND47P2VREF48PDO49TMAX50NC38LPFN51LPFO52RVREF53VCOF54AGND55SLCO56RFI57A+5V58RFCT59RFZI60RFRP61FEI62SBAD63TEI64TEZI65FDO66TRO67VREF68RFGC69TEBC70XI78FMO71DMO722VREF73SEL74+5V75GND76XGND77DVSR81RO82DVRR83DVDD84DVRL85DVSL87NC88NC89RST90HOLD91REMOTE92MXO93MXI94MGND95XO79X+5V80M+

35、5V96COM197COM298COM399COM4100LO86U701TC94A09F-209Q707TL431S1S2S3S4S5S6S7S8S9C1C2C3C4C78610nC72315PC72415PX70275KHzR79110KC785100PC784100nR738*R790560R78910C781100nC783100n+C782100uC79915PC78015PX70119.93MHzR78010KC77810nC77747nC77647nC77547nC77447nC773470PC772470PR8043K32+C78747uR712 10KR75010KC7401

36、00nC736100n3V3R7852K2C738100nR7482M2R752 10KR753 2K2R7494K7R782220KC733100nC714 100nR73610KR71110KR75110KC712100n+C71147u+C72547u+C70947uC710100nC7082n2C7052n2C7042n2C7072n2R710220R708220R709220R707220+C70310u+C70610uAD00AD01AD02AD03AD04AD05AD18AD19IO7IO6IO5IO4IO3IO2R74710KC737100nR745270R746270C735

37、330nC734100nAGND(PLL)IO1IO0AD15AD16AD17AD14AD13AD06AD07AD08AD09AD103V3R70510KL=FUNC INR78410KC77010n+C77147u+C76947uC76847PR78347K+C76147uR78115KC76715nC76610nC7652n7C7644n7C76210n+C76347uC746 47nR79822012345678910111213141516CN70216PINS123456CN7096PINSR803220R797 10KQ7018550CQ7029014CC75110n+C78847

38、0u+C752100u+C722220uR7061KR78647KR78710KR78822KGNDSLT+FM+FM-DM-DM+TO CD MECHANISMR77433KR799220R7731KTEOT2C7494n7R77256K+C75947u+C750100uR77115Q7069015CL70810uHR770JRR76962KR76868KR76768KR76668KR76568KR76462KR76315KR76215KR76115KR76015KC74110nL71310uHTO CD PUH(SANYO DA11V)FC-TR-TR+FC+PDVRLDGNDFCBADE

39、VCCVCC748 220nC747 220nT5REGOC794100nC74310nC76056P+C74247u+C73947uC745100nR775220R77818KC7442PT1VREFR77643KR7772K2R7791KT4FEOT3RFOR73010KR72910KR72810KR72710KR72610KR72510KR72410KR72310KR72210KR72110KR72010KR71910KR71810KR71710KC732100n+C73147u128K X 8 (15ns)R73510KR73410KR73310KR73210KR73110KR7441

40、0KR74310KR74210KR74110KR74010KR73910K3V3IO7IO6IO5IO4IO3IO2IO1IO0AD15AD16AD17AD14AD13AD06AD07AD08AD09AD10AD00AD01AD02AD03AD04AD05AD18AD19AD11AD12AD11AD12IO(0-7)AD(00-19)123CN7013PINSR80827KR80727KR7024K7R7014K7DECODER GNDR-CHAGNDL-CHL70747uH+C73047u+C72047uR71610KR71533C729100n+C728220uQ708TL431L7054

41、7uH+C72647u+C71910uR71410KR71333+C72147u+C72747uL70647uHL70447uHOUTINGU7097805OUTINGU708B1117NL70347uHL70247uH3V3+C715100u+C716220uC717100nC718100nL701CAF03AFOR SANYO DA11V PICK-UPCA BERE0 11 01 1DIGITAL3V3 REGULATORANOLOG 2V5(PLL)ANOLOG 2V5(DAC)X TAL 2V5DIGITAL 2V5DGNDDGNDX GNDR-CHGNDL-CHR-CHGNDGND

42、L-CHR-CHL-CH115GNDGNDV+GNDRECTIFIER BOARDR143220KAC SOCKETQ1139014CR145150K 1%R1463K9R144A100KH-RR1124K7R113100KR114100KR1171R1181R13815KR12782OKD5011N4001D5031N4001C50120n 50VC50220n 50VC50420n 50V+C119100uC123100n(M)C124100n(M)+C1311uD1021N4148D1011N4148Q1039014CQ1049014CQ1069014CQ1079014CR202180S

43、W1SOCKET SWR2011801234CN202B4PINS1234CN202A4PINS+C120100uC50320n 50VD5041N4001D5021N4001R1114K7+C111u47+C112u47+C1211000u+C1221000uC1131nC1141nD1081N4148R115150R116150+C1282200u 16VT H E R M A LF U S ECT1SP2025.7 ohmSP2015.7 ohm+C5052200u 16V321110112PRE GND659784IC101DV3287BR12033KR11933KC129100nQ1

44、059012H+C130100u+C117100u+C118100uJK201STEREOJACKBATT11.5X6=9VR147120D1091N41483V+123CN1013PINS123CN5013PINSBATT21.5X2=3V+C13647uQ1129014CR1421KQ1119012/HD1051N4148D1041N4148+C109u47D1061N4148R1283K3R1411KR129330R1401KR1306K8R13118KD1031N4148C13320n+C1321uR1392K2+C134100uR1326M8R13439KR133390KQ10890

45、14CR13518KR13682KQ1109014CR137680Q1092SB772QPHONE BOARDL-CHGNDR-CHL-CHGNDR-CH123CN2013PINS123CN1073PINSC13720nC12720nC126100/16VR1212K2C125100uC13510uC110u47R203150R204150JP201JPR14415K 1%8VR156*J778JPJ798JPJ710JPJ722JPJR703JRJ708JPJ724JPJ743JPJ753JPJ718JPJ711JPJR705JRJ752JPJR713JRJR714JRJR715JRJR71

46、8JRJ795JPJ727 JPJ728 JPJ712JPJ706JPJ759JPJ763JPJ702JPJ713JPJ707JPJ716JPJ715JPJ723JPJ726JPJ751JPJ749JPJ744JPJ725JPJ717JPJR15JRJ742JPJ745JPJ747JPJR16JRJR723JRJ704JPJ746JPJ705JPJ707JPJ766JPJ780JPJ774JPJR722JPJ793JPJ792JPJ795JPJ773JPJ789JPJR721JRJ772JPJ779JPJR709JRJR711JRJ721JPJ714JPJ712JPJR706JRJ720JPJ

47、719JPJ754JPJ755JPJR702JRJR701JRJ729JPJ736JPJ734JPJ731JPJ735JPJR725JRJ732JPJ760JPJR707JRJ733JPJ769JPJ770JPJ739JPJ740JPJ758JPJ738JPJ796JPJ756JPJ757JPJ764JPJ771JPJ762JPJR724JRJR726JRR80010KR80910KR81010KJ768JPJ781JPC2042nC2012nRRCD 2420 MP3?L.CH OUTL-CHR-CHGNDCOMMANR.CH OUT7VQ4019014C1234CN4014PINS1617

48、18SW401FPS-82D06192021SW401GPS-82D06789SW401CPS-82D06321467L4019170101112SW401DPS-82D06222324SW401HPS-82D06D4011N4148131415SW401EPS-82D06C40210n+C40447uC40510n456SW401BPS-82D06+C401470uC4061n8(m)R453120KR4541KR455820KR45656R401120R4051M+C40347uR402470R41010KR41147K+C4101uR4121M5Q4029014CR4144K7+C411

49、1uR413470R420470R42110KR4231M5Q4039014CR42247KR4244K7+C4201uR44115KR43115KQ4049014CQ4059014CR40410KR40310KR4428K2R4328K2C41318n(m)C42418n(m)+C41447u+C42347uR44422KR43422K+C42247uR445560R435560C4251n5C4151n5C4163n3(M)C4263n3(M)+C4211u+C40722uR41539KR42539KR43612KR44612KR452150R4304K7R4404K7123456789I

50、C401LS22241C4271n5C4171n5R44368R43368R4263K9R4163K9L-OUTGNDR-OUTL-RECR-RECGNDREC. 6V5REC GND12CN4032PINSC409180PC408180PC4182nC4192nTO R/P HEADTO MAIN PCB1234567CN4028PINSC41247uR438680R437680RRCD 2420 MP3?INFRAREDFRAMELAM P LEDC147uBT1DC 3VR16K8C2100PC3100PR221234567891213141516171819201011IC1PT224