Yamaha-RXV-450-Schematic电路原理图.pdf

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1、A 1 2 3 4 5 6 7 8 9 10 BCDEFGHIJKLMN 75 RX-V550/HTR-5750/RX-V450/HTR-5740/DSP-AX450 SCHEMATIC 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 specific

2、ations equal to those 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 Inverters A1 Y1 Y2 VCC A6 1 2 3 411 A2Y6 A5 12 13 14 A3 Y3 Y5 A4 5 6 7Y48 9 10 GND Input Selector RXOUT RX0 R

3、X1 RX2 RX3 RX4 RX5/VI RX6/UI LPF TMCK/PIO0 TBCK/PIO1 TLRCK/PIO2 TDATA/PIO3 TXO/PIOEN Cbit, Ubit Microcontroller I/F Data Selector Clock Selector Modulation & Parallel Port PLL XINXOUTXMCK CKST SLRCK SBCK RLRCK RBCK RMCK SDIN RDATA RERR DO XMODECICECLINTAUDIO/VOEMPHA/UO 1/N Demodulation & Lock detect

4、 1 2 3 4 5 8 9 10 13 44 45 46 47 48 29282734 23 22 20 17 16 24 21 36 37 41383948353332 IC2: LC89057W-VF4D-E Digital Audio Interface Transceiver 4B13 4A12 4Y11 3B10 3A9 3Y8 1B2 1Y3 2A4 2B5 2Y6 GND7 IC3: TC74HCT00AF Quad 2-Input Nand Gate Vcc141A1 IC4: NJM2904M Dual OP-Amp Q1 Q2Q3 Q9Q8 Q4 INPUTS OUTPU

5、T V + Q6 Q5 Q10 Q11 Q12 Q7 Q13 ROW DECODER SENSE AMPS COLUMN DECODER POWER DOWN INPUT BUFFER IC6: CY62128BLL-70SCT Memory A0 A9 A10 A11 A12 A13 A14 A15 A16 A1 A2 A3 I/O0 I/O1 I/O2 I/O3 I/O4 I/O5 I/O6 I/O7 A4 A5 A6 A7 A8 CE1 CE2 WE OE 512 x 256 x 8 ARRAY IC8: MSM514260E-60JS 4Mbit DRAM Timing Generat

6、or I/O Controller Output Buffers Input Buffers Input Buffers Output Buffers I/O Controller Column Decoders RAS Refresh Control Clock 14 WE 13 9 9 LCAS29 UCAS A0A8 28 VCC20 VSS21 Sense Amplifiers I/O Selector Memory Cells OE 27 DQ9DQ16 Column Address Buffers Internal Address Counter Row Address Buffe

7、rs On Chip VBB Generator Row Deco- ders Word Drivers 9 9 1616 8 8 8 8 8 8 DQ1DQ8 8 8 1DIR A1 A2 A3 A4 A5 A6 A7 A8 GND Vcc OE B1 B2 B3 B4 B5 B6 B7 B8 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 IC10: SN74LV245APWR Octal Bus Transceiver with 3-state Outputs IC11: PC29M33T-E1 Voltage Regulator 3OU

8、TPUT 1INPUT 2GND Safety Drive Limiter Excessive Electric Current Protection Sudden Current Protection Starter Circuit Driver Standard Voltage Overheat Protection Amp. IC12: PQ025EZ5MZP Regulator 1 Vin 3Vo 2Vc 5 GND IC14: 74VHC157MTCX Quad 2-Input Multiplexer 1S 10I1d 15E 11I0d 9Zd 13I1c 14I0c 12Zc 6

9、I1b 5I0b 7Zb 3I1a 2I0a 4Za 1 2 3 4 5 6 7 8 9 10 11 SDOS I2C SMUTE BICK LRCK SDTI1 SDTI2 SDTI3 SDTO DAUX DFS0 33 32 31 30 29 28 27 26 25 24 23 DZF2/OVF RIN LIN NC MASTER ROUT1 LOUT1 ROUT2 LOUT2 ROUT3 LOUT3 44 43 42 41 40 39 38 37 36 35 34 TDM0 LOOP0/SDA/CDTI DIF1/SCL/CCLK DIF0/CSN P/S MCLK DZF1 AVSS

10、AVDD VREFH VCOM 12 13 14 15 16 17 18 19 20 21 22 SDTI4 DZFE TVDD DVDD DVSS PDN TST1 CAD1 CAD0 LOUT4 ROUT4 MCLK LRCK BICK Format Converter SDOS SDOUT SDIN1 SDIN2 SDIN3 SDIN4 ADCHPF Audio I/F ADCHPF DACDATTLPF DACDATTLPF DACDATTLPF DACDATTLPF DACDATTLPF DACDATTLPF DACDATTLPF DACDATTLPF AK4628 IC16: AK

11、4628VQ 192kHz 24Bit 8-channel CODEC 22 ROUT4 12 1 SDTI4 8SDTI3 7SDTI2 6SDTI1 9SDTO 10DAUX 4BICK 5LRCK 39MCLK 32 RIN 31 LIN 21 LOUT4 24 ROUT3 23 LOUT3 26 ROUT2 25 LOUT2 28 ROUT1 27 LOUT1 IC18: PC4570G2 IC1921: NJM2068MD Dual OP-Amp + OUT1 IN1 VCC +VCC OUT2 1 2 3 45 +IN1IN2 +IN2 + 6 7 8 4B13 4A12 4Y11

12、 3B10 3A9 3Y8 1B2 1Y3 2A4 2B5 2Y6 GND7 IC22: SN74AHCT08PWR Quad 2-Input And Gate Vcc141A1 IC13: PQ012FZ01ZP Voltage Regulator 1 Vin VB 3Vo 42 Vc 5 GND Specific IC SDI INTERFACE /CS SO SI SCK SDI7 SDI6 SDI5 SDI4 SDI3 SDI2 SDI1 SDI0 SDWCK SDBCK IOPORT19-0 VSS XO XI IOPORT0 IOPORT1 IOPORT2 IOPORT3 IOPO

13、RT4 IOPORT5 IOPORT6 IOPORT7 AVSS CPO AVDD VDD1 (NC) IOPORT8 IOPORT9 IOPORT10 IOPORT11 IOPORT12 IOPORT13 IOPORT14 IOPORT15 VDD2 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51 VDD2 RAMA10 RAMA9 RAMA3 RAMA4 RAMA2 RAMA5 VDD1 RAMA1 RAMA6 RAMA0 RAMA7 RAMA8 RASN RAMOEN RAMWEN CA

14、SN RAMD15 RAMD11 RAMD13 VDD1 RAMD12 RAMD11 RAMD10 VSS 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 VSS SDO0 SDO1 SDO2 SDO3 SDO4 SDO5 SDO6 SDO7 IOPORT16 IOPORT17 IOPORT18 IOPORT19 VDD1 RAMD0 RAMD1 RAMD2 RAMD3 RAMD4 RAMD5 RAMD6 RAMD7 RAMD8 RAMD9 VDD2 100 99 98 97 96 95 94 93 92 91

15、 90 89 88 87 86 85 84 83 82 81 80 79 78 77 76 VDD2 SDI0 SDI1 SDI2 SDI3 SDI4 SDI5 SDI6 SDI7 SDBCK SDWCK /IC SCK SI SO /CS VDD1 RAMA17 RAMA16 RAMA15 RAMA14 RAMA13 RAMA12 RAMA11 VSS 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 XO XI CPO RAMD15-0 CASN RASN RAMWEN RAMOEN RAM

16、A17-0 CONTROL REGISTER -COM INTERFACE CONTROL SIGNAL DSP Internal Clock CK (30.72 40.96 MHz) PLLEXTERNAL MEMORY INTERFACE SDO INTERFACE DATA RAM 32 bit x 1024 word PROGRAM RAM 50 bit x 1024 word COEFFICIENT RAM 16 bit x 1024 word ADDRESS RAM 17 bit x 256 word SDO7 SDO6 SDO5 SDO4 SDO3 SDO2 SDO1 SDO0

17、32 bit DSP CORE OVF END MPLOAD ZEROF7R-0L BCKOP WCKOP SDBCKO SDWCKO IC7: YSS930-SZ Programmable 32 bit DSP RX-V550/HTR-5750 Reference No.U, C, R, T, K, A, B, G, L, Ememo s1R574.7KAAC s2MOUNTDigital Out MD/CDR In s3MOUNTCOAX RX-V450/HTR-5740/DSP-AX450 Reference No.JU, C, R, T, K, A, B, G, L, Ememo s1

18、R57NOT USED4.7KAAC s2MOUNTNO MOUNTDigital Out MD/CDR In s3NO MOUNTMOUNTCOAX FRONT L CENTER SURROUND L 4.9 4.9 0 3.9 0 4.9 3.9 0 4.9 0.2 0 4.9 4.9 4.9 4.9 0 0 0.3 0.1 0.4 0.1 3.1 2.6 4.8 4.9 4.9 3.3 3.3 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 3.3 3.3 1.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.

19、1 0.1 0.1 0.1 0.1 0.1 3.3 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.3 1.7 1.7 3.4 0.7 0.7 3.4 0 0 0 0 0 0 0 0 0 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 1.2 1.2 1.2 1.2 1.2 0.1 3.4 3.4 1.2 0 0 0 0 0 0 0 0 0.1 3.3 1.2 1.2 3.4 1.2 1.2 1.2 1.2 3.3 3.3 3.3 3.3 3.3 3.4 3.4 3.4 3.4 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

20、0 0 1.2 1.2 1.2 1.2 1.2 1.2 0.8 1.6 1.7 1.7 1.7 1.8 1.2 3.4 3.4 0 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 0.1 4.9 4.9 4.9 4.9 3.6 3.6 3.6 4.9 2.6 0 0 0 0 0 0 0 0 0 0 0 0 0 3.4 1.8 1.7 0 3.4 1.7 0 1.7 1.7 0 0 0 0 3.4 0.4 3.9 3.9 0.1 0.2 3.4 3.3 3.4 1.5 1.6 1.6 3.4 0 0 0 3.4 4.8 3.3 1.

21、5 3.3 0 0 0 0 0 0 0 3.0 2.54.9 1.2 000 3.4 3.4 4.9 4.93.4 0 0 3.4 3.0 1.2 4.2 2.5 4.7 4.9 1.2 2.5 0 3.6 3.3 4.8 1.6 4.8 4.8 4.8 4.7 4.7 4.7 5.0 4.9 4.9 0 0 0 0 0 0 3.3 3.3 3.3 3.3 3.3 3.3 3.3 3.3 3.3 3.3 0 0 0 0 3.3 3.3 4.8 4.8 4.8 0 0 0 0.70.7 0.7 0.7 0.7 1.0 1.0 1.0 1.0 1.8 1.7 1.7 1.7 0.7 0.7 0.7

22、 0.7 0.7 0.7 0.7 1.7 1.7 1.7 2.2 2.2 0 0 1.0 1.7 2.5 3.4 3.4 3.3 0.1 2.50 0 1.9 1.5 1.7 1.7 0.7 0.7 3.4 0.7 0.7 1.0 1.0 1.0 1.0 0.7 0.7 2.5 0.8 1.5 2.5 1.8 1.7 1.7 3.4 3.4 2.2 1.7 1.7 1.7 0.7 0.7 0.7 0.7 0.7 0.7 1.7 0 3.4 4.8 0 3.3 3.3 4.8 1.7 0.8 0 0 0.7 0.7 1.2 1.3 2.5 0 1.7 3.4 3.4 1.7 1.7 1.7 1.

23、7 1.7 1.7 0 1.5 0 0 0 0 0 0 1.5 4.9 4.9 4.9 0 0 0 0 2.5 2.5 3.3 3.3 3.3 4.8 0 0 5.0 1.7 5.0 -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 -11.6 11.8 11.8 11.8 2.5 5.05.0 2.5 0 0 0 0 00 0 2.5 2.5 -0.1 -0.1 11.8 0 0 1.7 0 0 0 0.1 2.5 2.5 2.5 2.5 2.5 2.5 0

24、 2.5 1.7 1.7 1.5 0.8 1.5 1.9 SELECTOR A/D POST PROCESSOR MAIN DECODER 1M SRAM DIR DUTY CORRECTOR 4M DRAM DUTY CORRECTOR HTR-5750, RX-V450, HTR-5740, DSP-AX450: Page 79 to FUNCTION (2) M10 RX-V550: Page 77L10 HTR-5750, RX-V450, HTR-5740, DSP-AX450: Page 78 to FUNCTION (1) H2 RX-V550: Page 76H2 A 1 2

25、3 4 5 6 7 8 9 10 BCDEFGHIJKLMN RX-V550/HTR-5750/RX-V450/HTR-5740/DSP-AX450 76 SCHEMATIC 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 equa

26、l to those 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。 IC303, 304, 306: NJM2068MD Dual OP-Amp. IC302: BD3841FS Function Switch + OUT1 IN1 VCC +VCC OUT2 1 2 3 45 +IN1IN2 +IN2 + 6 7 8 IC305: NJM4556AL

27、 Dual OP-Amp 8 2, 6 3, 5 1, 7 4 V+ INPUT +INPUT V OUTPUT F-SW1 F-SW1: INPUT FUNCTION 1 F-SW2: INPUT FUNCTION 2 * 32313029282726252423222120191817 12345678910111213141516 GND F-SW2 CKZ2 DTZ2 VSS GND VCC NC NC NC NC NC NC Z2L Z2R E E AXL AXR VIL VIR DTL DTR DVL DVR MIL MIR COL COR TUL TUR E E LOGIC +

28、+ + + 80 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 AGND1 INA1 INA2 INB1 INB2 INC1 INC2 IND1 IND2 INE1 INE2 INF1 INF2 AGND2 INDVDFR INDVDFL INDVDC INDVDSR INDVDSL INDVDCB INDVDSW AGND3 OUT1 OUT2 64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 7978777675747

29、37271706968676665 25262728293031323334353637383940 ING SW LOGIC Input select VccVEE TREBLE BASS Output mode select Master volume 6.1ch select FRL select VINFR GOUTFL VINFL AGND10 TNF1 TNF2 BNFA1 BNFB1 BNFA2 BNFB2 OUTFR OUTFL AGND9 OUTC OUTSR OUTSL OUTCB AGND8 OUTSW AGND7 VINC GOUTC VINSR GOUTSR AGND

30、13 ROUTC2 ROUTC1 ROUTB2 ROUTB1 ROUTA2 ROUTA1 AGND12 VCC VEE AGND11 DA CL MUTE THGND GOUTFR AGND4 INDSPFR INDSPFL INDSPC INDSPSR INDSPSL INDSPCB INDSPSW AGND5 GOUTSW VINSW AGND6 GOUTCB VINCB GOUTSL VINSL REC A REC B REC C IC301: BD3816K1 Input Select & Volume Control FRONT L CENTER SURROUND L 0.8 0.8

31、 0.1 0.1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.1 7.0 -6.9 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 -11.7 11.8 0 0.1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 -11.6 -11.6 -11.6 -11.6 -11.6 -11.6 0.7 10.0 9.3 9.3 0 0 0 0 -9.2 -9.2-9.8 0 0 0.7 0.1 0.1 0.1 -11.8 0.1 11.8

32、 0.1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.1 0 0.1 -11.8 0.1 11.8 0.1 0.1 0 0 0 0 7.0 7.7 7.7 -7.9 -7.0 -6.9-11.7 0 0 11.8 0 0 0 0 0 0 Page 77 to FUNCTION (2) L4Page 75 to DSP I1Page 80 to OPERATION (4) K4 Page 80 to OPERATION (1) H8 Page 83 to POWER (1) A1 Page 83 to POWER (1) A2 x: NOT USED O:USED / APPLI

33、CABLE HP AMP. MUTE MUTE MUTE SELECTOR/ VOLUME MUTE A 1 2 3 4 5 6 7 8 9 10 BCDEFGHIJKLMN 77 RX-V550/HTR-5750/RX-V450/HTR-5740/DSP-AX450 SCHEMATIC DIAGRAM (FUNCTION 2/2)RX-V550 # All voltages are measured with a 10M/V DC electronic volt meter. # Components having special characteristics are marked s a

34、nd must be replaced with parts having specifications equal to those 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。 GND VOUTVIN32 VREF IC501: NJU7201L55 Voltage Regulator 1 Point 1 Pin 13 of IC502 IC503

35、: LC72722 RDS Decoder + REFERENCE VOLTAGE 57kHz bpf (SCF) CCB TEST PLL (57kHz) ANTIALIASING FILTER SMOOTHING FILTER RAM (24 BLOCK DATA) ERROR CORRECTION (SOFT DECISION) SYNC/EC CONTROLLER SYNC DETECT-1 DATA DECODER CLOCK RECOVERY (1187.5Hz) MEMORY CONTROL OSC/DIVIDER VREF CLK(4.332MHz) SYNC DETECT-2

36、 VDDA VSSD VDDD RDS-ID SYNC SYR VSSA MPX IN DO CL DI CE T1 T2 T3 T4 T5 T6 T7 X IN VREF FL OUT C IN X OUT 314 15 19 18 24 156 4 2 20 21 22 23 7 8 9 10 11 16 171312 IC603, 606, 701: TC74HC4053AF Analog Multiplexer/Demultiplexer 16 VDD 6 INHIBIT 11 15 14 9 A C B 8VSS 7VEE 120X 131X 20Y 11Y 50Z 31Z LEVE

37、L CONVERTER 10 BINARY TO 1-OF-8 DECODER WITH INHIBIT SW SW SW SW SW SW 4Z-COM X-COM Y-COM INPUT STATES INHIBIT 0 0 0 0 0 0 0 0 1 ON CHANNNEL (S) 0X, 0Y, 0Z 1X, 0Y, 0Z 0X, 1Y, 0Z 1X, 1Y, 0Z 0X, 0Y, 1Z 1X, 0Y, 1Z 0X, 1Y, 1Z 1X, 1Y, 1Z NONE C 0 0 0 0 1 1 1 1 X B 0 0 1 1 0 0 1 1 X A 0 1 0 1 0 1 0 1 X IC

38、607, 608: TK15420M Video Amp + 1 2 3 45 + 6 7 8OUT A IN A +IN A VEE VCC OUT B IN B +IN B IC609: TC74HCU04AF Hex Inverters 1A 1Y 2Y VCC 6A 1 2 3 411 2A6Y 5A 12 13 14 3A 3Y 5Y 4A 5 6 74Y8 9 10 GND IC702: NJM2581M Video Amp 13VOUT1 11VOUT2 9VOUT3 8GND 10V+3 14V+1 12V+2 2 NEE1 4 VEE2 6 VEE3 7 PowerSave

39、5 VIN3 1 VIN1 3 VIN2 75 Driver 6dB AMP BIAS 75 Driver 6dB AMP BIAS 75 Driver 6dB AMP BIAS REF IC601, 602, 901: LA7956 Video Switch 123456789 VIDEO OUT ABVIN1GNDVIN2VCCVIN3VIN4 DRIVER 6dB AMP CONTROL 4 INPUT 1 OUTPUT VIDEO SWITCH Point 2 Cathode of D501 and Pin 12 of IC502 POWER ON (Connect the power

40、 cable) POWER OFF (Disconnect the power cable) A D501 B IC502 1 2 B A 4.9 4.9 3.9 4.0 4.0 4.0 7.5 4.1 4.1 0 0 4.0 4.94.9 5.9 5.9 0.3 0 0 0.1 11.5 3.9 3.9 4.9 5.5 0.5 11.2 0 0 4.9 4.9 4.9 4.9 11.2 11.2 11.5 11.5 5.9 5.95.9 5.9 6.5 6.5 6.9 6.9 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0 0 0 0 0 0 0 0 0 0 0 0 0

41、0 0 0 0 0 0 0 0 0 0 0 0 4.2 4.2 4.2 1.5 1.1 1.9 5.0 5.7 5.6 5.6 5.6 5.6 4.1 4.8 4.8 4.9 4.9 4.8 4.8 4.7 4.7 4.7 4.7 4.8 4.84.8 4.8 4.8 4.8 4.8 4.8 4.8 4.8 -11.6 -11.6 -11.6 4.8 4.1 4.8 4.8 4.8 4.8 4.8 4.7 4.1 0.1 0.1 0.1 0.1 0.1 0.1 0.5 0.5 0 0 0.1 0 0.1 0.1 0.1 0.1 0.1 0.1 0.1 4.7 4.9 4.8 4.8 4.8 4

42、.8 4.7 4.7 4.8 4.8 4.8 4.9 4.9 4.9 4.9 1.5 1.5 4.8 4.8 4.8 2.5 2.4 0 4.8 0 0 0.1 0.1 0 0 4.8 4.8 0.1 0.1 4.9 4.9 4.9 4.9 4.9 4.9 5.0 0 5.1 0.1 0.1 3.7 2.7 0.4 1.5 4.8 4.8 1.2 0 0.9 4.8 4.8 4.8 2.9 0.1 0.41.5 5.1 4.9 0 0 00 10.0 11.8 1.1 0.1 0.4 -0.5 -0.5 -0.5 -0.4 -0.4 0.4 0 0 0 0 3.6 2.6 2.72.72.7

43、4.9 4.9 4.9 4.9 4.9 4.5 -4.9 4.9 0 0.2 0 5.2 5.2 4.9 4.9 -4.9 -4.9 0.3 0.3 -0.3 0.4 0.4 0.4 1.0 -0.6 0.1 0.1 0.1 0.1 0.1 0.1 0.1 -0.4 4.9 4.9 4.94.94.9 4.94.5 4.5 4.5 -1.1 -0.4 -0.6 4.9 5.55.5 6.6 0.1 0 6.1 6.4 7.1 4.9 4.9 4.9 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 4.9 -4.9 -4.9 -4.9 -4.9 -4.9 4.8 4.9 0.7

44、0 MICRO COMPUTER Y/C MIX Y/C SEPARATION S-SIGNAL DETECT Y-INPUT SELECTOR C-INPUT SELECTOR INPUT SELECTOR Y/Cb/Cr SELECTOR x: NOT USED O: USED / APPLICABLE x: NOT USED O: USED / APPLICABLE x: NOT USED O: USED / APPLICABLE Page 76 to FUNCTION (1) F2 Page 82 to MAIN (2) H10Page 82 to MAIN (1) F1 Page 8

45、0 to OPERATION (1) E8Page 75 to DSP G1 U, C, A models only A 1 2 3 4 5 6 7 8 9 10 BCDEFGHIJKLMN RX-V550/HTR-5750/RX-V450/HTR-5740/DSP-AX450 78 SCHEMATIC DIAGRAM (FUNCTION 1/2)HTR-5750 # All voltages are measured with a 10M/V DC electronic volt meter. # Components having special characteristics are m

46、arked s and must be replaced with parts having specifications equal to those 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。 IC303, 304, 306: NJM2068MD Dual OP-Amp. + OUT1 IN1 VCC +VCC OUT2 1 2 3 45 +IN

47、1IN2 +IN2 + 6 7 8 IC305: NJM4556AL Dual OP-Amp 8 2, 6 3, 5 1, 7 4 V+ INPUT +INPUT V OUTPUT 80 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 AGND1 INA1 INA2 INB1 INB2 INC1 INC2 IND1 IND2 INE1 INE2 INF1 INF2 AGND2 INDVDFR INDVDFL INDVDC INDVDSR INDVDSL INDVDCB INDVDSW AGND3 OUT1 OUT2

48、64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 797877767574737271706968676665 25262728293031323334353637383940 ING SW LOGIC Input select VccVEE TREBLE BASS Output mode select Master volume 6.1ch select FRL select VINFR GOUTFL VINFL AGND10 TNF1 TNF2 BNFA1 BNFB1 BNFA2 BNFB2 OU

49、TFR OUTFL AGND9 OUTC OUTSR OUTSL OUTCB AGND8 OUTSW AGND7 VINC GOUTC VINSR GOUTSR AGND13 ROUTC2 ROUTC1 ROUTB2 ROUTB1 ROUTA2 ROUTA1 AGND12 VCC VEE AGND11 DA CL MUTE THGND GOUTFR AGND4 INDSPFR INDSPFL INDSPC INDSPSR INDSPSL INDSPCB INDSPSW AGND5 GOUTSW VINSW AGND6 GOUTCB VINCB GOUTSL VINSL REC A REC B REC C IC301: BD3816K1 Input Select & Volume Control RX-V450/HTR-5740/DSP-AX450 FRONT L CENTER SURROUND L 0.8 0.8 0.1 0.1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.1 7.0 -6.9 0 0 0 0 0 0 0 0 0 0 0 0 0