NAD-C427-tun-sm 维修电路原理图.pdf

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1、NAD Digital Media Tuner Digital Media TunerSERVICE MANUAL C427C427RadioFans.CN 收音机爱 好者资料库TABLE OF CONTENTS DESCRIPTION P A G E SPECIFICATIONS.4WIRING DIAGRAM .5BLOCK DIAGRAM.7 PCB LAYOUT.11-15EXPLODED VIEW PARTS LIST EXPLODED VIEW ELECTRICAL VIEW PARTS LIST.16-23WIRING DIAGRAM PARTS LIST.6.24-24. .2

2、4-24CIRCUIT DIAGRAMS.8-10RadioFans.CN 收音机爱 好者资料库 SPECIFICATION FM SECTION Usable Sensitivity (98 MHz) 10 dBu Signal/Noise Ratio 65 dB (60 dB_ IHF-WTD Mono) 60 dB (60 dB_ IHF-WTD Stereo) Frequency Response 1.5 dB (20 Hz - 15 kHz, 60 dB_) Channel Separation (60 dBu) 30 Hz 33 dB 1 kHz 40 dB 10 kHz 32 d

3、B Capture Ratio (40 dBu) 3 dB AM Suppression 50 dB (60 dBu, 100% Mod. FM, 30% Mod. AM) Image Rejection (119.4 MHz) 70 dB I.F. Rejection (10.7 MHz) 70 dB Pilot Suppression (60 dBu) 60 dB Total Harmonic Distortion* - Mono 0.4% Stereo 0.8% Auto Search Sensitivity 24 dBu RDS Decode Sensitivity 26 dBu AM

4、 SECTION Usable Sensitivity (999/1000 Hz) 55 dB_ Signal/Noise Ratio (5 mV in) 42 dB Total Harmonic Distortion (5 mV in) 1.5% IF Rejection (450 kHz) 40 dB Image Rejection (F+2xIF) 28 dB Selectivity 20 dB Loop Sensitivity (20dB S/N) - 999/1000 Hz 66 dB 603/600 Hz 66 dB 1404/1400 Hz 66 dB Frequency res

5、ponse (100 - 2.3 kHz, 5 mV) 6 dB 4C427 WIRING DIAGRAM FM/AM Tuner1Main Board2FPP BoardEncorder Board4PSU Board3R140R674C665R671U6001M201K207C658U614C1001R623C646R1348R1352C1002J601R1002C616C617C688R681D607C1443D606C609R607C608Q1010R1347C1444R662R622R698C649R606Q1007D1054K603D602C652R652R654Q602R1355

6、Q1008Q1011R1345C694R675C666C689Y601R682C667R673C660R649C692R690C697R648R691R696R697C693R695C645R692Q601C698C644C696D601K601C669C647R683R685R678U617R659C681J608R672J606C683C685R679R676D603C684C686Q6001R677C674C682Q604R684R680C687U610J602R657C650C690C691C1011D604D605U613R693R694R665C695R62R61R664R687U

7、611R667J604J603R668C659R663XM301R655U609R686Q603C657R650R666R669U612R1001R670P601U210C207R2000R233R232R229C218C214C220R208U208C204R203C203R2001R2002Q204C227R250R215R248R213R212R211R210R234R219C219R227C210C221R207R214R209R235C209R204C206R221R228D201R205U205R222U206C205U203R243C223U212R237K204U209U211

8、D2002C222C224C208R236C226R201D202Q201C202C225U201R202C201C229C230R260C228Q206D205C232Q205R261R265R267C243D209R266T201K206R240Q207C245R253Q202Q203R252R245R244R251D208C244R268Q210R280R281R282R262R241D207C242C241C240D206C231K203R242R263R264K202R256R257D717C921C668C922R141J605C1000R1000R143D119C655C653C

9、654C656R64P602C907P902D904L901CY901+D901+D902C932T901CY903D903U902C903C906Q901C918C927C908L904C926U908S903D911C920C919U904S902T902CX902CY902C904TH901CY904TH902K901C917D909+R914C931D906L903CX901L902ZV901U905+C925C923S901J901FUSE901C405C400C234R254R2508C237R259R255C235R258C236V201USBR238K201R239K2055I

10、temPart NumberDescriptionRemark114-42717-00Cable,1.25mm,17PIN,L=95mmTuner To Main Board214-42724-00Cable,1.0mm,24PIN,L=240mmKey Board To Main Board314-44604-01Cable,UL2468#26AWG,4PIN,L=80mmKey Board To Encorde Board414-42709-00Cable,UL2468#26AWG*9C,9PIN,L=240mmPSU Board To Main BoardWIRING DIAGRAM P

11、ARTS LIST6SignalPowercontrolKUANGXIN FM/AM/RDS MODULEkst-mb114ma1-23D1G2V3GP1UV701QSKey and IR front panelFM ANTENNAAM ANTENNAENCODERFM/AM LOFM/AM ROSPIRDS DATALOROTRIG INIR INRS232LOGICBufferIR TRIG RS232MAIN PSUStandby PSU(TNY274PN)5V 1AMAIN LMAIN NNAD C427 BLOCK DIAGRAMVERSION: V1.0Drafted by: Be

12、nData: 2013-06-25standby (0.2W dissipation )PSU BOARDLDOAMS11173V3S-VF3V3D+/-12V 0.5ASWITCH+8VTRANSFORMER+VF+8V 0.5ATRANSISTORLDOAMS1117GPIO+8V5VS5VDAPM2301ConversingVFDBOE CIG128X32Main MCUM30281FAHPSPII2CGPIO3V3SVDF Driver MCUPIC18F26K203V3D74LCX244-VF+VFAC INLET-12V+12V7C60 81N 2C6161N 2R60 747R

13、JR62 347R JC60 9220 PC617220 PLRchassi s3132K603AJRC-27F/012-SR60 6470 RR62 2470 RAGNDJ601AJ601B+12VAAGNDC66933U /25VC66833U /25V1234567891011121314151617P6011. 0-9-17PW BR D S_D AT AR D S_C LKSTER EOPLL_DOPLL_C ETUN ER DPLL_C LKPLL_DIDGNDAGND+12VAAGNDC64410 0NC646220 U /25VC64510 0NC674 47nFR6772K2

14、IR BR67810k232GNDR6761K1234567891110J608D Connect or 9/ EN1C1+2V+3C1-4C2+5C2-6V-7RIN8ROUT9/ INV10DIN11FCON12DOUT13GND14VCC15/ FCOFF16U617M AX3221C681100NC682100NC690100NC691100N232GNDC686100N3V3S232GND232GNDR683330RR685330RR232_RXR232_TXC68510U/ 10V,R67910RTPS A106M 010R 0900C68722NR68010RD6041SS352

15、D6051SS352232GNDDGNDR684100RC_M U TEC68822NR68110RD6061SS352D6071SS352AGNDch assi s3R649470RR648470RFM / AM _ROFM / AM _LOR6544k7R6520RQ6022SC1815C64910ND6021N4148C652100PAGND+12VA465K603B3V3SDGND3V3SC65 9100NY 60118.432 MH zC66 720PC66 620PDGNDR67 0100KdgndC66 0100N3V3S12J60 4CON 2R66 710RR67 51M E

16、GC65 822U F/16VP10257P911P902CN V SS3P87/X CIN4P86/X CO U T5RESE T6X O U T7V SS8X IN9V CC10P85/N M I11P84/IN T212P83/IN T113P82/IN T014P8115P8016P7717P7618P7519P7420P7321P7222RXD2/ P7123TXD2/ P7024TXD1/ P6725RXD1/ P6626P6527P6428P3329SO3/ P3230SI3/ P3131CLK332TX D 0/P6333RX D 0/P6234CLK 0/P6135P6036

17、P2737P2638P2539P2440P2341P2242SC L/P2143SD A /P2044P1745P1646P1547P0348P0249P0150P0051P10752P10653P10554P10455P10356P10158AVSS59P10060VREF61AVCC62P9363P9264U 611M30281F A HPRESET1GND2RESET3VDD5M R4U 614TPS 3825DGNDR66 247KDGNDCLK1BUSYR67 333RCNVssCERESETDGND3V3SR66 80R12J60 3CON 2R67 247K3V3SR232_RX

18、R232_TX3V3SDGND1234567891011121314J60 6HEA DER 7X 2 2.54 pitchCLK1BUSYCNVssCERESETR232_RXR232_TXR66 3A120RR66 3B120RR66 4A120RR66 4B120RK EY _ST BSC LSD AKEY_M ISOIRFIRBA01A12A23Vss4SDA5SCL6W P7Vdd8U 61224LC 16DGND3V3SC65 7100NSCLSDADGNDR66 4C120RR 650B120RR 650C120RR 650D120RR 650A120RST BYDGNDLED_

19、BFPCLKaFPM OSIaVFM ISOKEYM ISOaVFSTBaKEYSTBaIRFa123456789101112131415161718192021222324J602To FPP Board8VDDGNDEN CA aEN CB aLED_B1G1A121Y118A241Y216A361Y314A481Y412V CC20G N D102G19B1112Y19B2132Y27B3152Y35B4172Y43U61074LCX244DGNDC650100nDGNDDGNDR65 9B120RR65 9C120RR65 9D120RR65 9A120RDGNDFPM OSIFPCL

20、KVSTBKEY_STBR65 7B120RR65 7C120RR65 7D120RR65 7A120RIRFEN CAEN CBKEY_M ISOE N CAE N CBVFM ISOFPCLKFPM OSIV ST BVFM ISOA01GND2A13Y4Vcc5S6U609NC7SZ157DGNDM ISOSel3V3SC647100NDGND3V3S3V3S514J60 5AS CJ3 51-D S S WC66 510 0nZR67 433K J232GNDtri g iTRIGR67 110 0KJ3V3SbecQ 604D TC114232GNDTRIGSTER EOPLL_DO

21、PLL_C ETUN ER DPLL_C LKPLL_DIR66 5A120RR66 5B120RR66 5C120RR66 5D120RR66 647KR66 947K3V3SR D S_D AT AR D S_C LKM UTER 655120RC68922NR68210RAGNDDGND+12VA3V3S8VDDGNDDGNDG1O U T2IN3O4U613AMS1117-3.3DGNDC654100NC65633U /25VC653100NC65533U /25V+5VS+5VSDGNDQ 603DTC 114DGNDSTBY2521J60 5BS CJ3 51-D S S W232

22、GND78K603CJRC-27F/012-SC683EM I100pC684EM I100pDGNDR6210KR6110K3V3SR6410KEN C_EnterENC_Ent erDGND8VDR1431KTRIG_DECQ 600 1D TC114a11gnd2a23y24vcc5y16U6001NC7WZ17C1011100n3V3S232GNDD 6031S S 3 523V3SR1402KR14120KTRIGBVFD_BUSYaV FD _BU SY aTRIG B3V3S232GNDC_M UTEQ10102SA1015Q10112SC1815R135212KR13454K7

23、+12VAD1054BAT54SR134747KC144310 0U /25 VC144447U /25VAGND+12VAR13484k7Q1007DTC114EKADGNDQ1008DTC114EKADGNDR135510K3V3SM UTELED_ALED_AAAKKD119M M 3Z4V7T1GR68 6120RR68 7120R123456789P602TO PSU boardR690100KR691100KAGNDC69 210 0PC69 310 0PR66 3C120RC695100NC69 422U F/16VDGNDR6920C696N. I .R6950R694220R

24、693220DGND8VDC1000N. I.C1001N. I.C1002N. I.R10000RR10010RR10020RDGNDXM 300HOLEXM 301HOLEXM 302HOLEDGNDAGNDBLEN DBLEN DR6983K9465K601BJRC-27F/012-SR6964k7R6970RQ6012SC1815C69710ND6011N4148C698100PAGND+12VA78K601CJRC-27F/012-SCIRCUIT DIAGRAMS1.MAIN BOARD VM2.08 5VF3V3FC20222u/6v3C203100NDGNDC209100N1G

25、1A121Y118A241Y216A361Y314A481Y412VCC20GND102G19B1112Y19B2132Y27B3152Y35B4172Y43U20674ACT244DGND5VFC205100nDGNDDGNDF-1F-2BK14LAT15CLK16SI17VH9VH10GND11GND12CIG128X32F-3NC8VDD13BKG14LATG15CLKG16SIG17SOG18NC19SI220CLK221LAT222BK223F+26F+27F+28U203CIG128X3201VFD BK1VFD LAT1VFD CLK1VFD SI1VFD BK2VFD LAT2

26、VFD CLK2VFD SI2VFD BKGVFD CLKGVFD SIG8VDR24810KR25010KVFPENQ204DTC114EKADGNDGDSM201APM2301C230220U/16VC22822U/10VDGNDDGND8VFVF-VF+60VFR227470RC210100NDGNDC221100NDGNDMCLR/VPP/RE31RA0/AN0/C12IN0-2RA1/AN1/C12IN1-3RA24RA35RA46RA5/HLVDIN7VSS8OSC1/CLKIN/RA79OSC2/CLKOUT/RA610RC011RC112RC213RC3/SCK/SCL14RC

27、4/SDI/SDA15RC5/SDO16RC6/TX/CK17RC7/RX/DT18VSS19VDD20RB0/INT0/FLT0/AN1221RB1/INT122RB2/INT223RB3/AN924RB4/KBI025RB5/KBI1/PGM26RB6/KBI2/PGC27RB7/KBI3/PGD28U205PIC18F26K20DGNDC204100NR20322k3V3FDGNDPGCLKPGDATA12345CON201ICSPMCLRVFD BK1VFD BKGVFD CLKGVFD SIGVFD LAT1VFD CLK1VFD SI1R20410kR205220kDGND60VF

28、C206100ND2013V63V3FDGNDR207B120RR207C120RR207D120RR207A120RR209B120RR209C120RR209D120RR209A120RVFD BK2VFD LAT2VFD CLK2VFD SI2R214B120RR214C120RR214D120RR214A120RDGNDVSIVCLKVSTB1G1A121Y118A241Y216A361Y314A481Y412VCC20GND102G19B1112Y19B2132Y27B3152Y35B4172Y43U20974LCX244DGNDC207100nDGNDDGNDR219B120RR2

29、19C120RR219D120RR219A120RDGNDFPCLKFPMOSIVFMISOKEYMISOaVFSTBaKEYSTBaIRFaVSIVCLKVSTBR23510kR208100R/oe1a2gnd3y4vcc5U208AHC1G125DGNDC208100n X7RDGNDR222100RR228100RR221100R1a13y22a3gnd42y53a61y7vcc8U210NC7NZ343V3FDGND3V3FC22422u/6V3G1OUT2IN3O4U211ASM1117-5DGNDC222100nC223100U/25V5VF8VD12345678910111213

30、1415161718192021222324J201Header 248VDQ2012SC1815R236560RC2262.2U/10VC22522u/6V33V3FD2021SS3523V3F1234CON202NCDGNDC229220U/16VDGND3V3FDGNDDGNDDGNDDGNDR201100RIRFR2100RR2110RR2120RR2130RR215120RENCAENCBENCAaENCBaR234100RC219330PdgndR233100RC218330PdgndR232100RC214330PdgndR229100RC220330PdgndDGNDR2551

31、0KJR25810KJR2541K2JR2591K2JC23410nKC23710nKDGNDC236100NC235100NABABDGNDK207PresetK203DisplayK206AM/FMK202Mute/ModeSH/LD1CLK2E3F4G5H6QH7GND8QH9SER10A11B12C13D14CLK INH15VCC16U212HC165DGNDDGNDC227100nDGNDDGNDKEY_SCKKEY_STBKEY_MISO3V3SDGNDK205MemoryK201BlendK204PowerR23710k 5%R23810k 5%R23910k 5%R24010

32、k 5%R24110k 5%R24210k 5%R24310k 5%Power OND1G2V3U201TSOP34838R20210RC20147U/16KEY_SCKKEY_STBKEY_MISOENCAENCB3V3S3V3S3V3S3V3S3V3SC24547u/80vR26010KR26147R0.5WQ2052SC1815Q2062SC3303C2321NDGNDD2071N4148R262150RC2311NDGND0.5WR2631K2DGNDD2069V1 DGNDD2081N4148R26847KR26722KD2095V6DGNDC244100NDGNDVF+VF-D20

33、51N4148R2641K2C24010U/25VR2650RR2660RC24310U/10V12348765910T201VFD TRC24110U/25VC242100N60VF3V3SPower ONQ2032SC1815Q2072SC1815Q2022SA1015R2451KR2441KR25210KR25310KR25110KR25610KR25710K3V3SD7173LEDDGNDDGNDRedBlueAmber123456USBC4000.1UFC4050.1UFDGNDDGNDR250810KJENC_EnterENC_Enter_13V3SA1C2B344557766V2

34、01EC11E15244G1DGND1234CON208CON-4ENC_Enter_1ENC_EnterDGNDVUSBUSB_DMUSB_DP4321CON203CON-44321CON204CON-4AD20021SS3522.FPP BOARD VM2.0 AND FPP ENCODE BOARD VM2.0901S90101S90201S9038VDC9124. 7nF/ 1kVR91468k/ 2WR9336. 8RC921100nFR927270RR9283. 3K 1%R9342. 7k 1%C915100NR9261. 2kCY9011nF Y1U905TL4312134BD

35、901KBP208C907100NDGNDC905100NDGNDC9141nFR92582RR9113. 3MR9326. 8kC9161000uF/ 25VC91168uF/400V 22*25C9171000uF/ 25VC91310uF/ 50VC92047uF/ 16V123D905M UR1620L9015uHDGNDU903PC817R9133. 3MR9123. 3MVi1Vo2g3V d4U904KA78R05C919100pF/ 1KVR9352. 87k 1%R90210KC9181000uF/ 25VC906100NR9075. 1kC910330UF/ 25VC908

36、100NR9191kR9231kR936220R5VDDGNDR90310KC922100P5VDQ904IRF5210C902330uF/ 25VR9181KR9201KR9211KR9221KC3S5X2V1D7F4U902TO P265EGR9095. 1MR9085. 1MR9105. 1MR915180KL90310mHCX902220nF/ 250VACTH9015D-11ZV901TUR10D471R929750k123J901CON3R931750kR930750kL90210mHCX901100nF/ 250VACCY9021nF/ 1KVCY9031nF/ 1KVF901T

37、2AL250VACSTBR9051kR9164. 7R/ 1WVi1Vo2g3V d4U901KA78R12C903100NR924C909330UF/ 25VC904100N12VDDGNDC9011000uF/ 25VD90618V3WR90410kR9065. 1kR901D901M URS120D9041N4148D903FR107Q903Comme nt : 2SC3326Q9022SC3326Q901Q905DTA114EKADGNDDGND31131489101157T901EEL25123456789J902CON1012VDDGNDSTB5VDDGND8VDDGND8VDDG

38、NDR9375. 1kCY9041nF Y1DGND3.SMPS BOARD VM2.0 101.MAIN BOARD VM2.0Top LayerBottom LayerPCB LAYOUT 112. FPP BOARD VM2.0Top Layer122.FPP BOARD VM2.0Bottom Layer1314Top LayerBottom Layer3.FPP ENCODE BOARD VM2.04. SMPS BOARD VM1.0Top LayerBottom Layer15 PCB-1:MAIN BOARDNOITPIRCSED.ON TRAPPCB INFOA16-4270

39、1-21MAIN PCBVM1.0,FR-4,1.6mm,TG130,166*60mmDIODED601, D60233-44148-17Switch Diode SMD1N4148D603, D604, D605, D606, D607 33-40352-01Switch Diode1SS35232TOS ,S45TABedo iD yk t tohcS00-45004-334501Dedo iD reneZ70-90741-33911DMM3Z4V7T1G, 4.7V 0.2W 5%TRANSISTORQ603, Q604, Q6001, Q1007,Q100831-00114-05Tra

40、nsistorDTC114Q601, Q602, Q101131-01815-03Transistor2SC181532TOS ,5101Arot s i snarT30-51010-130101QIC5283SPTt i ucr iC yros i vrepuS33-52830-30416UPHAF18203MUCM30-18203-30116U1223XAMecaf retnI 232SR20-12230-30716U751ZS7CN rexe l p i t l uM 1:210-75170-30906U71ZW7CN ref fuB10-71700-301006U3.3-7111SMA

41、rota l ugeR33-71110-30316U442XCL47 ref fuB l at cO10-44200-30016U61CL42 MORPEE20-61420-30216URESISTORR652, R668, R692, R695, R697,R1000, R1001, R100207-90000-00Chip resistor0,0603,1/10W,5%R667, R679, R680, R681, R682 07-91009-00Chip resistor10,0603,1/10W,1%,RC0603FR-0710RL33rot s i ser p i hC00-9033

42、9-70376R,0603,1/10W,1%,R607, R62307-94709-00Chip resistor47,0603,1/10W,1%001rot s i ser p i hC00-00019-70486R,0603,1/10W,1%R655, R686, R68707-91200-00Chip resistor120,0603,1/10W,1%R683, R68507-93300-00Chip resistor330,0603,1/10W,1%R606, R622, R648, R64907-94700-00Chip resistor470,0603,1/10W,1%R143,

43、R67607-91001-00Chip resistor1K,0603,1/10W,1%,RC0603FR-071KLK2rot s i ser p i hC00-10029-70041R,0603,1/10W,1%K2.2rot s i ser p i hC00-10229-70776R,0603,1/10W,1%K9.3rot s i ser p i hC00-10939-70896R,0603,1/10W,1%R654, R696, R1345, R134807-94701-00Chip resistor4.7K,0603,1/10W,1%R61, R62, R64, R678, R13

44、5507-91002-00Chip resistor10K,0603,1/10W,1%K21rot s i ser p i hC00-20219-702531R,0603,1/10W,1%K02rot s i ser p i hC00-20029-70141R,0603,1/10W,1%K33rot s i ser p i hC00-20339-70476R,0603,1/10W,1%R662, R666, R669, R672,R134707-94702-00Chip resistor47K,0603,1/10W,1%R670, R671, R690, R69107-91003-00Chip

45、 resistor100K,0603,1/10W,1%rot s i ser p i hC00-50109-70576R1M,0603,1/10W,5%,RC0603JR-071MLR650, R657, R659, R663, R664,R66507-90121-10Chip resistor120, 5% R0603X430-12203-70396RMetal Oxide FilmResistorRY21,220,2W,5%,Pitch=15mm,H=3-4mm60-12203-70496RMetal Oxide FilmResistorRY21,220,3W,5%,Pitch=15mm,

46、H=3-4mmCAPACITOR16ELECTRICAL PARTS LISTC666, C66726-20051-00Ceramic Chip Capacitor20pJ,50V,0603,NPOC683, C684, C652, C692, C693,C69826-10112-10Ceramic Chip Capacitor100pF,100V 0603, NPOC609, C61726-22112-00Ceramic Chip Capacitor220pJ, 100V, 5%,NPO,0603,C608, C61626-12251-10Ceramic Chip Capacitor1n2J

47、,50V,0603,NPOC649, C69726-10351-00Ceramic Chip Capacitor10nK,50V,0603,X7R,C2012X7R1H103KTC687, C688, C68926-22351-00Ceramic Chip Capacitor22nK,50V,0603,X7R3060,R7X,V05, Jn74rot i capaC p i hC c imareC00-15374-62476CC644, C645, C647, C653, C654,C657, C659, C660, C681, C682,C686, C690, C691, C650, C66

48、5,C69526-10411-00Ceramic Chip Capacitor100nF,16V 0603, X7RR7X,3060 V52,Kn001rot i capaC p i hC c imareC01-12401-621101C30-11001-72586CChip Tan ElectrolyticCapacitor10uF,10V,10%,T491A106K010ATC658, C69406-22011-10Ceramic Chip Capacitor CD263,22uF,16V,20%,F2.5C655, C656, C668, C66906-33021-04Alu Elect

49、rolytic CapacitorCD263, 33uF, 25V, 20%,F2.5rot i capaC c i t y l or t ce lE u lA20-12074-604441CCD263,47uF,25V,20%,F2.5rot i capaC c i t y l or t ce lE u lA40-12101-603441CCD263,100uF,25V,20%,F2.5rot i capaC p i hC c imareC21-11122-60646CCD263,220uF,16V,20%,F2.5CAYSTALzHM 234.81 LATSYRC10-24811-4010

50、6YCONNECTORBP42-9-0.1 mm0.1 NIP42rot cennoC CFF70-42012-31206JP5-1453-JSkcaJ enohP70-20020-71506JWS SD-153JCSkcaJ enohP20-20020-71ro506JA10V12-JR se l oh 2ACR230-20010-71106JtekcoS 232SR00-90080-71806J D Connector 9,RS232/F,7906-09FHArot cennoC81-20521-31406J ,306J2.54mm,2pin,CNT-M254-1*2-GS-5/3-NA9