NAD-C388-int-sm 维修电路原理图.pdf
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1、 Hybrid Digital DAC Amplifier Hybrid Digital DAC AmplifierSERVICE MANUAL C388C3881PreliminaryRadioFans.CN 收音机爱 好者资料库FRONT / REAR VIEW45123TROUBLE SHOOT6-1314-31PCB LAYOUTELECTRICAL PARTS LISTPreliminaryRadioFans.CN 收音机爱 好者资料库SPECIFICATIONS1Preliminary1 POWER INDICATOR 2 STANDBY BUTTON3 NAVIGATION AN
2、D ENTER BUTTONS4 HEADPHONE5 DISPLAY6 REMOTE SENSOR 7 SOURCE 8 VOLUMEVOLUMESOURCE NAD C388Hybrid Digital DAC Amplifier C 388NAD78123465100-120V/220-240V50/60HzPOWERONSerial No./N de serieSPEAKERSBLEFTRIGHTSERVICEBTANTENNA GNDSPEAKERSALEFTRIGHTRS23212PHONO INLINE 1 INPRE-OUT/SUBW12LRLIRINRRLMMLINE 2 I
3、N INRLTRIGGER +12V NAD C388OPTICAL INCOAXIAL INOUTM o d u l a rD e s i g nC o n s t r u c t i o nM o d u l a rD e s i g nC o n s t r u c t i o n101112136123457891 COAX 1-2, OPT 1-22 PHONO IN, LINE 1-2 IN3 PRE-OUT/SUBW4 IR IN/IR OUT 5 TRIGGER +12V 6SPEAKERS 7 POWER 8 FUSE HOLDER9 AC MAINS INPUT 10 SE
4、RVICE11 BLUETOOTH ANTENNA TERMINAL12 GROUND TERMINAL13 RS 232 FRONT VIEWREAR VIEW2PreliminaryWIRING DIAGRAM3PreliminarySignalPowercontrolMain MCUNAD C388 BLOCK DIAGRAMSI9573HDMI TransceiverMCUTM4C1230H6PMDC/DC AND LDO3.3V 5.0V 1.3VHDMIIN 3HDMIIN 2HDMIIN 1HDMIOUTIIS switcherNC7SV157X346 pin board-boa
5、rd socketIIS3INT0IICGPIO0-4SPI12VENLDO46 pin board-board socketIIS4INT1IICGPIO5-9SPIA12VENIIS BUFFERNC7SV157ch 0ch 1HDMI cardSPIIICGPIO0-11INT0-1ESDDIODEE-GPOE-GPODIGITALDIGITALLDO12.5VIIS Main3+13.8V+13.8V3.3VD12.5VPOWER SWITCHLN6.3AT/250VSMPSLOGIC BUFFERTRIG OUTTRIG INIR INGPIOIR ; TRIGLow leakage
6、 SMPSGPIOSPI_FPPCS8416Plug indetectFront panelTFT DISPLAYSTANDBYIRVOLUMELEDBlueOS cardSPDIFRXANTENNAMINI USBEthernetUSB HUBApplicationsProcessorsMCIMX535USB2514Hub Controller74LVC257ALAN8720BTM511NC7SV15774LV244ATSAM3N00AMMINPHONO AMPLINEIN1OPAMPCLC2059muteLINE1/SUB1OPAMPCLC2059HD AMPmuteHPTact swit
7、chHeadphoneSOURCETact switchTact switchRS232COAX 1COAX 2OPTO1OPTO2SPDIF INIR OUTAsynchronousSRCSRC4382NC7SV157Audio serialPort AAudio serialPort BDigital interfaceReceiverSRCCLOCK24.576MDAC MODULEPCM1795NJW1194VolumeDigital VolumeTONEControlAMPLP1&2LN1&2RP1&2RN1&2SPEAKER A2X150W 8ohmClippingLME49860
8、CPClippingControl1XOPA2134+/-VCCCurrent senseEXT_VDR3V3DIICIIS Main2IISL&RLME49725GPIOSPII2CGPIOUSB+7.5VA3V3D1V8D+/-7.5VADACMODULATORFILTERLRMCLKOPAMPLOW PASS filterSPEAKER BL CHR CHL CHR CH+12VR+12VR+12VmuteOPAMPLOW PASS filterLINE2/SUB2CLC20593.3VSMCUSTM32F030RCT6TRLCD driver+/-VCC+/-VCCVAUX+/-LDO
9、KA78R12DC/DCTPS54327LDOLDO3V3D1V8DDigital supply+13.8VTLV11175VD3.3VSLDOLM317/LM337+/-7.5VATI TM4C1290SPI_FPPLCD driver+13.8VTLV1117IICDC/DCTPS540403V3ScontrolOPAMPHI PASSCLC2059OPAMPHI PASSCLC2059+12VAC_DETGPIOGPIOGPIOGPIOCONTROLLERSTBYEXT_VDREXT_VDRUCD102MP+/-12V+/-12V+/-12V+/-12V+/-12VAmber/Blue/
10、RedAnalog supply+/-12VEnableDetectorBluetoothmodule8670IIS3V3SCLC2059VAUX+-12VLDOLM337+12V13V8+12VRGPIO5VA3V3D+/-12V+/-12V7WV17IIS BUFFERNC7SV1573V3DGPIOMENUType AUSBUSB SWITCHTS3USB3000GPIO01TS3USB300001USB3V3D+/-12V+/-12V+/-12VLDOTLV11173V3LDC/DCXRP76755VSFRONTUSB SUPPLYBT_L/R INBT_L/R IN+/-12VAna
11、log SENSE3V3SGPIOFAULT_DETTRANS_TEMPVAUX-+13.8VLINEIN2CLOCK8MDigital SENSE3V3SGPIOCS8416OPA2348NE5532SN74LVC1G123GPIOCLK DetctorVM1.0BLOCK DIAGRAM4PreliminaryYESCheck STB boardCheck main board13.8V RIGHT?NONOFront panel Standby ledNo Power or Power shuts offimmediately3V3S RIGHT?NOCheck U456YESCheck
12、 Q703 Q706 circuitChange FPP board,MDC boardYESNOPress Standby button switchstandby led blue light?YESchange PSU boardCheck LEDBright Control signalYESstandby led turn off?standby led red light?YESNOred lightYESCheck Q702 Q706 circuitChange FPP board,MDC boardCheck LEDBright Control signalCheck Q701
13、Q706 circuitChange UCD102 MODULEFinishApply 1khz sinewave to RCA input of DUTAmplifier output correct?YESNOIPRC IPRH signal correct?YESChange UCD102 MODULEcheck+/-15V,+/-7.5VRight?NOcheckU461 U463 U464 U465 CircuitNOchange MAIN boardYEScheckU103 U104 U110 Circuitchange MAIN boardTROUBLE SHOOTING5Pre
14、liminaryC368 & C388 PHONE BOARD6PreliminaryC368 & C388 MDC INTERNAL BOARD7PreliminaryC368 & C388 MDC BOARD8PreliminaryC368 & C388 AUDIO SENSE BOARD9PreliminaryC368 & C388 AUDIO SENSE INTERNAL BOARD10PreliminaryC368 & C388 FPP BOARD11PreliminaryC388 MAIN BOARDTOP LAYER12PreliminaryC388 MAIN BOARDBOTT
15、OM LAYER13PreliminaryPower Supply2134D102TS25P05GR1272MAC120V /AC230V MAIN INTH1015D-11FUSE101T10AL250VCY102NCCY103NCR1282MC111270uF,63VC109270uF,63VC112270uF,63VC110270uF,63VC1391.2nF/200VR16322R/1206C1401.2nF/200VR16422R/1206V+V-Q119IRFB4020Q113BC807-25D112BAS321R11922RD114BAS321V+V-Q118IRFB4020Q1
16、12BC807-25D106BAS321R11522RD113BAS321Q120IRFB4020Q115BC807-25D115BAS321R12022RD117BAS321Q121IRFB4020Q114BC807-25D107BAS321R11622RD116BAS321910TR101GSC73161211TR101FSC73161314TR101DSC7316810TR101ESC7316GNDPQ116FDP22N50NQ111BC807-25D109BAS321R11822RD111BAS321Q117FDP22N50NQ110BC807-25D108BAS321R11722RD
17、110BAS321C137330nF/275VACC138330nF/275VAC45TR101BSC7316R1610R33R1620R3312TR101ASC731667TR101CSC7316123J101CON3-3.96GNDPC123820uF,200VC124820uF,200VR107220KR108220KR109220KR106220KT1T2G3Q108BT138X-600FC11610nF/630VR150150RR151150RC14150V/1nFC14250V/1nFD123MURA220T3D124MURA220T3C143470uF,50VC144470uF,
18、50VGND112VDHVOP101PC817L107330R/1.5AL108330R/1.5AR16622R/1206R16522R/1206+42V- 42VGNDL10122uHC12910nF/630VC13010nF/630VGNDPCHCJHJKKC121100nF/50VC120100nF/50VGNDPCX101220nF/250VAC123456789 AC-LAC-NHV-DCAC-DECAC-SWTBDVCCDC-DETGNDMOD901MACSWLAC2AC1123456789101112131415J10215PINR9484.99KR9494.99KC94310N
19、R950390KR951390KAC2AC1GNDPA1K2A/K6A/K4U909=ValueR9032kSWLR9012MR9022MC927100NC920100uF,35VC931100PC915100N 50VR93210KVVGNDinoVdisU906=ValueR9351KR9432KC928100uF,35VSTBVDP12VDC12VDCGNDPGNDP1243L10620mHLNK500Relay-SPSTD5001N414812VDGNDPGND214VDR1102.2KC1811000uF/25V* * * *R1144.99K 1%C1801000uF/25V* *
20、 * *C108220nF/50V231IC102TL431R11220kR1111kR11324K 1%D964MURS120C973100uF,35VVDPC182100ND800UG2007C80447uF/35VD801MURS1202134BD800KBP308GC8003.3nF/630VC80147uF/400V CD263C8034.7nF/400VR80468K 2WR8052.2RL802L-31206RC1206RCC3S5X2V1D7F4U800TOP266EGC802100PC805100nF/50VC80647uF/25V R8156.8RR8128.2K 1%R8
21、14180KDW80018V/3W SMBBCEQ8823904R81622RR85522RR8103.3MR8113.3MR8075.1MR8065.1MR8093.3MR8085.1MHTHT123D802SBR20A150CC87047uF/400V CD263U904EL817CY9051N 400VAC1AC2FG=ValueCY9081N 400VGNDP1GNDP1GNDP1GNDPC155270uF,63VC156270uF,63V2121311105781413T105PQ3225D182MURA220T3L183330R/1.5AC186470uF,50VL184330R/
22、1.5A+15VDRin1out2gnd3vd4U204KA72R15R18510KC188470uF,50V-15VDRC187470uF,50V14VDDETGND2STB1234J175CON3+18VD-18VDGND1-18VD+18VD1234J909CON3GNDPR87068K 2WC16010nF/630VC16110nF/630V-15VDRGND2R1881KGND1+15VDRC191NCC192NC117910131413T102PQ-2604R13510KD120BAS321R1472.2kDW102PDZ3.3BC1351UF/25VDETCX106470nF/2
23、50VACR1990R331234J177CON3CY1052.2nF/AC250VCY1062.2nF/AC250VFl12J908R175NCR176NCC175NCC8004.7UF/25VC8041UF/25VSS1RTD2CT4CS3VDD8OUTB7OUTA6GND5IC800ISL6744ABZC802220PC803180PR80068KC805220nF/50VR80110RSSR80210RC801100P SSBCEQ8002SC3326R80547KR803100RR8162.7KR8104.7KR81420KR812100kC8071nF/50V12VD32184U8
24、00ALM393567U800BLM393C811100nF/50VR8094.7kR81122KC810100nF/50VC80647uF/35VR8084.7kR804100RBCEQ802BC846BWECBQ801BC856BWD800BAS316R8074.7kR80647kR81810KR813100kC8091nF/50VC8122.2uF/16V R81547K NCR81710K2V1V10V-1.2VCC1H1A1C1H1J1J1A1A1K1K1C8081nF/50V123456789101112131415J80015PINPreliminary01-1-061110Uc
25、D102 Module 101-1-061102Main Board02-1-061102Main Board SMT05-4-061102-1SMain Board PCBVM1.0,FR-4,1.6mm,280?70mm05-3-061102-1SMAIN+USB+HP+RS232+BTASSYVM1.0,FR-4,1.6mm,290*189mm12-1-000022High speed Diode1N4148W-NRD111, D400, D401, D505, D50412-1-000231Schottky DiodeBAT54S, SOT23D40212-1-000016Schott
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