Yamaha-RXV450-avr-sch(1) 维修电路原理图.pdf
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1、A12345678910BCDEFGHIJKLMN75RX-V550/HTR-5750/RX-V450/HTR-5740/DSP-AX450SCHEMATIC DIAGRAM (DSP)Point: Pin 28 of IC2# All voltages are measured with a 10M/V DC electronic volt meter.# Components having special characteristics are marked s and must be replaced with parts having specifications equal to t
2、hose originally installed.# Schematic diagram is subject to change without notice. 電圧、内部抵抗10M電圧計測定。 s印部品、安全性確保部品示。部品交換必要場合、記載部品使用。 本回路図標準回路図。改良予告変更。IC1 : MM74HCU04SJX Hex InvertersA1Y1Y2VCCA6123411A2Y6A5121314A3Y3Y5A4567Y48910GNDInputSelectorRXOUTRX0RX1RX2RX3RX4RX5/VIRX6/UILPFTMCK/PIO0TBCK/PIO1TLRCK
3、/PIO2TDATA/PIO3TXO/PIOENCbit, UbitMicrocontrollerI/FDataSelectorClockSelectorModulation&Parallel PortPLLXINXOUTXMCK CKSTSLRCKSBCKRLRCKRBCKRMCKSDINRDATARERRDOXMODECICECLINTAUDIO/VOEMPHA/UO1/NDemodulation&Lock detect1234589101344454647482928273423222017162421363741383948353332IC2: LC89057W-VF4D-EDigit
4、al Audio Interface Transceiver4B134A124Y113B103A93Y81B21Y32A42B52Y6GND7IC3: TC74HCT00AFQuad 2-Input Nand GateVcc141A1IC4: NJM2904MDual OP-Amp Q1Q2Q3Q9Q8Q4 INPUTSOUTPUTV +Q6Q5Q10Q11Q12Q7Q13ROW DECODERSENSE AMPSCOLUMNDECODERPOWERDOWNINPUT BUFFERIC6: CY62128BLL-70SCTMemoryA0A9A10A11A12A13A14A15A16A1A2A
5、3I/O0I/O1I/O2I/O3I/O4I/O5I/O6I/O7A4A5A6A7A8CE1CE2WEOE512 x 256 x 8ARRAYIC8: MSM514260E-60JS4Mbit DRAMTimingGeneratorI/OControllerOutputBuffersInputBuffersInputBuffersOutputBuffersI/OControllerColumn DecodersRASRefreshControl Clock14WE1399LCAS29UCASA0A828 VCC20VSS21Sense AmplifiersI/OSelectorMemoryCe
6、llsOE27DQ9DQ16 ColumnAddressBuffersInternalAddressCounterRowAddressBuffersOn ChipVBB GeneratorRowDeco-dersWordDrivers991616888888DQ1DQ8 881DIRA1A2A3A4A5A6A7A8GNDVccOEB1B2B3B4B5B6B7B8234567891020191817161514131211IC10: SN74LV245APWROctal Bus Transceiver with 3-state OutputsIC11: PC29M33T-E1Voltage Re
7、gulator3OUTPUT1INPUT2GNDSafety DriveLimiterExcessive ElectricCurrent ProtectionSudden CurrentProtectionStarter CircuitDriverStandard VoltageOverheat ProtectionAmp.IC12: PQ025EZ5MZPRegulator1Vin3Vo2Vc5GNDIC14: 74VHC157MTCXQuad 2-Input Multiplexer1S10I1d15E11I0d9Zd13I1c14I0c12Zc6I1b5I0b7Zb3I1a2I0a4Za1
8、234567891011SDOSI2CSMUTEBICKLRCKSDTI1SDTI2SDTI3SDTODAUXDFS03332313029282726252423DZF2/OVFRINLINNCMASTERROUT1LOUT1ROUT2LOUT2ROUT3LOUT34443424140393837363534TDM0LOOP0/SDA/CDTIDIF1/SCL/CCLKDIF0/CSNP/SMCLKDZF1AVSSAVDDVREFHVCOM1213141516171819202122SDTI4DZFETVDDDVDDDVSSPDNTST1CAD1CAD0LOUT4ROUT4MCLKLRCKBI
9、CKFormatConverterSDOSSDOUTSDIN1SDIN2SDIN3SDIN4ADCHPFAudioI/FADCHPFDACDATTLPFDACDATTLPFDACDATTLPFDACDATTLPFDACDATTLPFDACDATTLPFDACDATTLPFDACDATTLPFAK4628IC16: AK4628VQ192kHz 24Bit 8-channel CODEC22ROUT4121SDTI48SDTI37SDTI26SDTI19SDTO10DAUX4BICK5LRCK39MCLK32RIN31LIN21LOUT424ROUT323LOUT326ROUT225LOUT22
10、8ROUT127LOUT1IC18: PC4570G2IC1921: NJM2068MDDual OP-Amp+OUT1IN1VCC+VCCOUT212345+IN1IN2+IN2 +6784B134A124Y113B103A93Y81B21Y32A42B52Y6GND7IC22: SN74AHCT08PWRQuad 2-Input And GateVcc141A1IC13: PQ012FZ01ZPVoltage Regulator1VinVB3Vo42Vc5GNDSpecific ICSDI INTERFACE/CSSOSISCKSDI7SDI6SDI5SDI4SDI3SDI2SDI1SDI
11、0SDWCKSDBCKIOPORT19-0VSSXOXIIOPORT0IOPORT1IOPORT2IOPORT3IOPORT4IOPORT5IOPORT6IOPORT7AVSSCPOAVDDVDD1(NC)IOPORT8IOPORT9IOPORT10IOPORT11IOPORT12IOPORT13IOPORT14IOPORT15VDD275747372717069686766656463626160595857565554535251VDD2RAMA10RAMA9RAMA3RAMA4RAMA2RAMA5VDD1RAMA1RAMA6RAMA0RAMA7RAMA8RASNRAMOENRAMWENC
12、ASNRAMD15RAMD11RAMD13VDD1RAMD12RAMD11RAMD10VSS12345678910111213141516171819202122232425VSSSDO0SDO1SDO2SDO3SDO4SDO5SDO6SDO7IOPORT16IOPORT17IOPORT18IOPORT19VDD1RAMD0RAMD1RAMD2RAMD3RAMD4RAMD5RAMD6RAMD7RAMD8RAMD9VDD2100999897969594939291908988878685848382818079787776VDD2SDI0SDI1SDI2SDI3SDI4SDI5SDI6SDI7S
13、DBCKSDWCK/ICSCKSISO/CSVDD1RAMA17RAMA16RAMA15RAMA14RAMA13RAMA12RAMA11VSS26272829303132333435363738394041424344454647484950XOXICPORAMD15-0CASNRASNRAMWENRAMOENRAMA17-0CONTROL REGISTER-COM INTERFACECONTROL SIGNALDSP Internal Clock CK(30.72 40.96 MHz)PLLEXTERNAL MEMORYINTERFACESDO INTERFACEDATA RAM32 bit
14、 x 1024 wordPROGRAM RAM50 bit x 1024 wordCOEFFICIENT RAM16 bit x 1024 wordADDRESS RAM17 bit x 256 wordSDO7SDO6SDO5SDO4SDO3SDO2SDO1SDO032 bit DSP COREOVFENDMPLOADZEROF7R-0LBCKOPWCKOPSDBCKOSDWCKOIC7: YSS930-SZProgrammable 32 bit DSPRX-V550/HTR-5750Reference No.U, C, R, T, K, A, B, G, L, Ememos1R574.7K
15、AACs2MOUNTDigital Out MD/CDR Ins3MOUNTCOAXRX-V450/HTR-5740/DSP-AX450Reference No.JU, C, R, T, K, A, B, G, L, Ememos1R57NOT USED4.7KAACs2MOUNTNO MOUNTDigital Out MD/CDR Ins3NO MOUNTMOUNTCOAXFRONT LCENTERSURROUND L4.94.903.904.93.904.90.204.94.94.94.9000.30.10.40.13.12.64.84.94.93.33.30.10.10.10.10.10
16、.10.10.10.10.10.10.13.33.31.20.10.10.10.10.10.10.10.10.10.10.10.10.10.10.13.31.21.21.21.21.21.21.21.31.71.73.40.70.73.40000000000.10.10.10.10.10.10.10.11.21.21.21.21.20.13.43.41.2000000000.13.31.21.23.41.21.21.21.23.33.33.33.33.33.43.43.43.40000000000000000000000001.21.21.21.21.21.20.81.61.71.71.71.
17、81.23.43.4000.10.10.10.10.10.10.10.10.10.10.10.10.100.14.94.94.94.93.63.63.64.92.60 0 0 0 0 0 0 0 0 0 0 0 0 3.41.81.70 3.41.70 1.71.70 0 0 0 3.40.43.93.90.10.23.43.33.41.51.61.63.40003.44.83.31.53.3000000 0 3.0 2.54.91.20003.43.44.94.93.4003.43.01.24.22.54.74.91.22.50 3.63.34.81.64.84.84.84.74.74.75
18、.04.94.90000003.33.33.33.33.33.33.33.33.33.300003.33.34.84.84.80000.70.70.70.70.71.01.01.01.01.81.71.71.70.70.70.70.70.70.70.71.71.71.72.22.2001.01.72.53.43.43.30.12.5001.91.51.71.70.70.73.40.70.71.01.01.01.00.70.72.50.81.52.51.81.71.73.43.42.21.71.71.70.70.70.70.70.70.71.703.44.803.33.34.81.70.8000
19、.70.71.21.32.501.73.43.41.71.71.71.71.71.701.50000001.54.94.94.900002.52.53.33.33.34.8005.01.75.0-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-11.6-11.6-11.6-11.611.811.811.82.55.05.02.500000002.52.5-0.1-0.111.8 0 01.70000.12.52.52.52.52.52.502.51.71.71.50.81.51.9SELECTORA/DPOSTPROCES
20、SORMAINDECODER1M SRAMDIRDUTYCORRECTOR4M DRAMDUTYCORRECTORHTR-5750, RX-V450, HTR-5740, DSP-AX450: Page 79to FUNCTION (2)M10RX-V550: Page 77L10HTR-5750, RX-V450, HTR-5740, DSP-AX450: Page 78to FUNCTION (1)H2RX-V550: Page 76H2RadioFans.CN 收音机爱 好者资料库A12345678910BCDEFGHIJKLMNRX-V550/HTR-5750/RX-V450/HTR-
21、5740/DSP-AX45076SCHEMATIC DIAGRAM (FUNCTION 1/2)RX-V550# All voltages are measured with a 10M/V DC electronic volt meter.# Components having special characteristics are marked s and must be replaced with parts having specifications equal to those originally installed.# Schematic diagram is subject t
22、o change without notice. 電圧、内部抵抗10M電圧計測定。 s印部品、安全性確保部品示。部品交換必要場合、記載部品使用。 本回路図標準回路図。改良予告変更。IC303, 304, 306: NJM2068MDDual OP-Amp.IC302: BD3841FSFunction Switch+OUT1IN1VCC+VCCOUT212345+IN1IN2+IN2 +678IC305: NJM4556ALDual OP-Amp82, 63, 51, 74V+INPUT+INPUTVOUTPUTF-SW1F-SW1: INPUT FUNCTION 1F-SW2: INPUT
23、FUNCTION 2*3231302928272625242322212019181712345678910111213141516GNDF-SW2CKZ2DTZ2VSSGNDVCCNCNCNCNCNCNCZ2LZ2REEAXLAXRVILVIRDTLDTRDVLDVRMILMIRCOLCORTULTUREELOGIC+80123456789101112131415161718192021222324AGND1INA1INA2INB1INB2INC1INC2IND1IND2INE1INE2INF1INF2AGND2INDVDFRINDVDFLINDVDCINDVDSRINDVDSLINDVDC
24、BINDVDSWAGND3OUT1OUT264636261605958575655545352515049484746454443424179787776757473727170696867666525262728293031323334353637383940ING SWLOGICInput selectVccVEETREBLEBASSOutputmodeselectMastervolume6.1ch selectFRL selectVINFRGOUTFLVINFLAGND10TNF1TNF2BNFA1BNFB1BNFA2BNFB2OUTFROUTFLAGND9OUTCOUTSROUTSLO
25、UTCBAGND8OUTSWAGND7VINCGOUTCVINSRGOUTSRAGND13ROUTC2ROUTC1ROUTB2ROUTB1ROUTA2ROUTA1AGND12VCCVEEAGND11DACLMUTETHGNDGOUTFRAGND4INDSPFRINDSPFLINDSPCINDSPSRINDSPSLINDSPCBINDSPSWAGND5GOUTSWVINSWAGND6GOUTCBVINCBGOUTSLVINSLREC AREC BREC CIC301: BD3816K1Input Select & Volume ControlFRONT LCENTERSURROUND L0.80
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