Yamaha-NXAMP-4-X-4-Service-Manual电路原理图.pdf

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1、SERVICE MANUAL Copyright (c) NEXO S.A. All rights reserved. PDF 09.10 PA 011947 CONTENTS （目次） PANEL LAYOUT （） .3 CIRCUIT BOARD LAYOUT （） .4 SERVICE PRECAUTIONS （時注意） .5 OVERALL ASSEMBLY WIRING （総組立配線図） .7 DISASSEMBLY PROCEDURES （分解手順） .25 LSI PIN DESCRIPTION （LSI 端子機能表） .37 IC BLOCK DIAGRAM （IC 図） .

2、38 CIRCUIT BOARDS （基板図） .44 TEST PROGRAM .64 .71 INSPECTIONS .78 検査 .83 UPDATING THE FIRMWARE .88 .90 PARTS LIST BLOCK DIAGRAM IC HIGH: Bypass mode (through) (2) 9TESTITest, must be connected to DGND (2) 10LRCKI/OAudio data latch enable input/output (1) 11BCKI/OAudio data bit clock input/output (1)

3、12DOUTOAudio data digital output 13DGNDDigital GND 14VDDDigital power supply, 3.3 V 15SCKIISystem clock input: 256 fs, 384 fs, 512 fs or 768 fs (3) 16OSRIOversampling ratio select input / LOW: x 64 fs, HIGH: x 128 fs (2) 17FMT0IAudio data format select input 0 / See data format section (2) 18FMT1IAu

4、dio data format select input 1 / See data format section (2) 19MODE0IMode select input 0 / See data format section (2) 20MODE1IMode select input 1 / See data format section (2) NXAMP4x4 37 IC BLOCK DIAGRAM （IC 図） D0 Q0 RDQ QD CP FF1 D1 Q1 RDQ QD CP FF2 D2 Q2 RDQ QD CP FF3 D3 Q3 RDQ QD CP FF4 D4 CP M

5、R Q4 RDQ QD CP FF5 D5 Q5 RDQ QD CP FF6 D6 Q6 RDQ QD CP FF7 D7 Q7 RDQ QD CP FF8 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 MR Q0 D1 D0 Q1 Q2 D2 D3 Q3 GND Q7 D6 D7 Q6 Q5 D5 D4 Q4 CP VCC IN1 REFI1 RESET MUTE SCL/CCLK SDA/MOSI AD0/CS ENOut DGND VD REFI8 IN8 REFO8 OUT8 OUT7 OUT6 REFO7 REFO6 REFI7

6、 REFI8 IN7 IN6 VA+ VA- REFO1 OUT1 OUT2 OUT3 REFO2 REFO3 REFI2 REFI3 IN2 IN3 VA- VA+ VA+ VA- OUT5 REFO5 IN5 REFI5 REFI4 IN4 REFO4 OUT5 VA+ VA-1 2 3 4 5 6 7 8 9 10 11 12 36 35 34 33 32 31 30 29 28 27 26 25 48 47 46 45 44 43 42 41 40 39 38 37 13 14 15 16 17 18 19 20 21 22 23 24 5 3 I2C/SPI Control Port

7、 I2C/SPI Serial Control 8-channel Analog Inputs 8-channel Analog Outputs 8V to 9V +3.3V Zero Crossing Detector RDQ Q latch 1 SD Q0 A0 RDQ Q latch 2 SD A1 RDQ Q E latch 3 SD A2 RDQ Q latch 4 SD A3 LE Q1 Q2 Q3 Q4 Q5 Q6 Q7 Q8 Q9 Q10 Q11 Q12 Q13 Q14 Q15 VCC A3 A2 Q10 Q11 Q8 Q9 Q14 Q15 Q12 Q13 E 1 2 3 4

8、24 23 22 21 A0 A1 Q7 Q8 Q5 Q4 Q3 Q1 Q2 Q0 GND LE 5 6 7 8 9 10 11 12 20 19 18 17 16 15 14 13 DC D CP Q Q 3 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 U/D CP D0 D1 D2 D3 CEP GND VCC TC Q0 Q1 Q2 Q3 CET PE D1 D CP Q Q 4 D2 D CP Q Q 5 D3 PE CEP CET CP U/D D CP Q Q 6 9 7 10 2 1 TC 15 Q3 11 Q2 12 Q1 13 Q0 14 ?

9、74HCT273PW,118 (X8681A0) D-type Flip Flop PN-AN: IC002, 003 ?74LVC169PW,118 (X8482A0) Binaly Counter CONTROL: IC044, 045 ?74HCT4514PW,118 (X8630A0) Decoder PN-AN: IC004-007 ?CS3318-CQZ (X8486A0) Volume Controller CONTROL: IC001 NXAMP4x4 38 Switched Capasito DAC and Filterr Selectable Interpolation F

10、ilter Modulator Left Differential Output Left Differential Input Left and Right Mute Controls 5V Selectable Interpolation Filter Volume Control Mixer LOW-Latency Anti-Alias Filter High Pass Filter and DC Offset Calibration Modulator Level TranslatorLevel Translator PCM Serial Interface/Loopback 3.3V

11、 to 5V2.5V to 5V Hardware or I2C/SPI Control Data Serial Audio Output Serial Audio Intput Reset External Mute Control Internal Oscilator Internal Voltage Reference Registor/Hardware Configuration Volume Control Switched Capasito DAC and Filterr Multibit Oversampling ADC Right Differential Output Rig

12、ht Differential Input LOW-Latency Anti-Alias Filter High Pass Filter and DC Offset Calibration Multibit Oversampling ADC 1 LO 2 3 4 5 6 7 COM VCC VS VB HO 9 10 11 12 13 14 VSS LIN SD HIN VDD 8 VDD/VCC LEVEL SHIFT PULSE GEN PULSE GEN VDD VSS HIN SD LIN 10 9 11 12 13 R S Q RSQ VDD/VCC LEVEL SHIFT HV L

13、EVEL SHIFT UV DETECT UV DETECT DELAY PULSE FILTER R R S Q 6 7 5 3 1 2COM LO VCC VS VB HO 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 EN C1+ V+ C1 C2+ C2 V RIN FORCEOFF VCC GND DOUT FORCEON DIN INVALID ROUT DIN DOUT Auto-powerdown INVALID RIN FORCEOFF FORCEON ROUT EN 11 16 12 98 10 13 1 5 2 SHI Interface

14、212 Triple Timer ESAI Interface 12 ESAI_1 Interface Peripheral Expansion Area 24-Bit DSP56300 Core DDB YAB XAB PAB DAB YDB XDB PDB GDB Power Mngmnt. 11 Memory Expansion Area GPIO DAX PIO_EB PM_EB XM_EB YM_EB Bootstrap ROM Internal Data Bus Switch Program Interruput Controller Clock Gen- erator EXTAL

15、 RESET PINIT/NMI MODA/IRQA MODB/IRQB MODC/IRQC MODD/IRQD Address Generation Unit Six Channel DAM Unit PLL EFCOP Program RAM 4K x 24 ROM 64K x 24 X Data RAM 36K x 24 ROM 32K x 24 Y Data RAM 48K x 24 ROM 32K x 24 4 Program Decode Controller Program Address Controller Data ALU 24 x 24+56 56-bit MAC Two

16、 56-bit Accumulators 56-it barrel Shifter JTAG OnCETM CURRENT GENERATOR THERMAL PROTECTION VOLTAGE GENERATOR VIN VOUT GND THERMAL COMPENSATION ?CS4272-CZZR (X8487A0) CODEC CONTROL: IC012, 013 ?IR2110 (X2382A04) Driver PSANH: IC302, 303 ?LD1117STR (X8495A0) Regulator CONTROL: IC024 ?MAX3221CPWR (X275

17、7A0) RS-232C Driver CONTROL: IC041 ?DSPB56371AF180 (X8489A0) DSP CONTROL: IC022, 023 NXAMP4x4 39 CATHOD REFERENCE ANODE (A) CATHODE (K) REFERENCE (R) ANODE CS# SO GND VCC HOLD# 1 2 3 45 6 7 8 SI WP# SCLK Data Register SRAM Buffer Output Buffer Sense Amplifire HV Generator Mode Logic SO State Machine

18、 SI Y-Decoder Memory Array Page Buffer X-Decoder CS# Address Generator SCLKClock Generator 1 2 3 4-V 8 7 6 5 Output A+V Non-Inverting Input A -DC Voltage Supply +DC Voltage Supply Output B Inverting Input B Non-Inverting Input B Inverting Input A+- +- 1 2 3 4- V 8 7 6 5 Output A+V Non-Inverting Inpu

19、t A Ground +DC Voltage Supply Output B Inverting Input B Non-Inverting Input B Inverting Input A+- +- COMMON OUTPUT R23 R24 R13 R14 R20 R17 D3 Q22 Q21 Q25 Q20 Q24 Q18 Q9 R18 R19 R16R15R21R12R11 R10 Q17 R9R8 R7 R5 R4 D2D1 R6 C1C2 C3 R22 Q11 Q13 Q14 Q15 Q19 Q16 Q23 Q8 Q7 Q2 Q1 Q6 Q5 Q3 Q10 Q12 Q4 R1 R

20、2 R3 INPUT INPUT OUTPUT GND INPUT OUTPUT GND ?MX25L1605AM2C-12G (X8718A0) (X8718B0) Flash Memory CONTROL: IC039 ?(X6770A0) SHUNT Regulator PAANH: IC401 PSANH: IC204 ?NJM2068M-D (X3505A0) Operational Amplifier CONTROL: IC002-005, 008-011, 018-021, 028-034 INANH: IC701, 702 OUTANH: IC801, 802 ?NJM79M0

21、9DL1A (X5366A0) Regulator CONTROL: IC007 ?(XD853A0) Regulator +15V PSANH: IC202, 203 ?(XZ940A0) Regulator CONTROL: IC006 ?(XR532A0) Operational Amplifier CONTROL: IC047, 048, 050, 052 NXAMP4x4 40 ON/OFF circuit Voltage regulator Soft Start - + Oscill ator fo Conversion circuit Q R S + - Over Heat De

22、tection circuit Drive Circuit F/F Comparator AMP Vref VIN VB Vo ON/OFF V NC adj COM 18 4 5 3 2 6, 7 Over current Detection circuit 2 ERROR AMP. 1 COMP. S 50A GROUND SYNC. COMP. INV.INPUT SOFT-START SHUTDOWN N.I.INPUT DISCHARGE 5k 5k VREF VREF Vi RT CT S R 9 5 7 6 3 12 15 8 10 FLIP FLOP TO INTRENAL C

23、IRCUITRY OSCILLATOR OUTPUT PWM LATCH U.V. LOCK OUT OSC. REF. REG. 16 4 NOR OUTPUT B SG1525A OUTPUT STAGE SG1527A OUTPUT STAGE 14 NOR VC OUTPUT A11 13 OR OUTPUT B14 OR VC OUTPUT A11 13 FB IN- SCP SCP 0.5 A 2A 2k GND OUT RT RT RT DTC 0.5V PWM 1V 1V UVLO V+ 0.8V 0.2V 1VVref ER.AMP Soft Start Latch Buff

24、er OSC 3 2 4 5 678 1 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 VINL VINR VREF1 VREF2 VCC AGND PDWN BYPAS TEST LRCK MODE1 MODE0 FMT1 FMT0 OSR SCKI VDD DGND DOUT BCK BCK VINL Reference VREF1 VREF2 VINR Delta-Sigma Modulator Delta-Sigma Modulator x 1/64, x 1/128 Decimation Filter With High-Pas

25、s Filter Power Supply AGNDVCCVDDDGND Clock and Timing Control Serial Interface Mode/ Format Control LRCK DOUT FMT0 FMT1 MODE0 MODE1 BYPAS OSR PDWN SCKI TEST ?NJU7630-M (X8682A0) Regulator PSANH: IC205 ?PQ1CX12H2ZP (X6188A0) Regulator PSANH: IC208 ?SG2525AN (X8960A0) PW Modulator PSANH: IC301 ?PCM180

26、3ADBR (X7357B0) A/D Converter CONTROL: IC035-038 NXAMP4x4 41 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 CLR 1Q 1D 2D 2Q 3Q 3D 4D 4Q GND VCC 8Q 8D 7D 7Q 6Q 6D 5D 5Q CLK CLK CLR 1D 1D 3 1Q 1 11 R C1 1D 2D 4 2Q 2 R C1 1D 3D 7 3Q 5 R C1 1D 4D 8 4Q 6 R C1 1D 5D 13 5Q 9 R C1 1D 6D 14 6Q 12 R C1 1D

27、 7D 17 7Q 15 R C1 1D 8D 18 8Q 1619 R C1 1Y0 1Y1 1Y2 1Y3 2Y0 2Y1 2Y2 2Y3 2-COM 1-COM 13 12 14 15 11 1 5 2 4 3 INH B A 10 9 6 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 2Y2 2Y0 2-COM 2Y3 2Y1 INH GND GND VCC 1Y2 1Y1 1-COM 1Y0 1Y3 A B 1 2 3 4 5 6 7 20 19 18 17 16 15 14 Vcc G2 Y1 Y2 Y3 Y4 Y5 Y6 Y7 Y8 8 9 10

28、12 11GND A8 A7 A6 A5 A4 A3 A2 A1 G1 13 4B13 4A12 4Y11 3B10 3A9 3Y8 1B2 1Y3 2A4 2B5 2Y6 GND7 Vcc141A1 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 GND Y3 A3 A2 A1VCC A6 A5 A4 Y6 Y5 Y4 Y2 Y1 1 2 3 4 5 6 7 14 13 12 11 10 9 8 ?SN74LV273

29、APWR (X5074A0) D-type Flip Flop CONTROL: IC057-061 ?SN74LV4052APWR (X6976A0) Demultiplexer CONTROL: IC049 ?SN74LVC00APWR (X5406A0) NAND CONTROL: IC040 ? (X5966A0) Buffer/Driver CONTROL: IC055, 056 PN-AN: IC001 ?SN74ABT245BNSR (XU009A0) BUS Transceiver CONTROL: IC062 ?SN74LV14APWR (X6688A0) Inverter

30、CONTROL: IC063 NXAMP4x4 42 2 3 5 6 11 10 14 13 15 1 G A/B 4B 4A 3B 3A 2B 2A 1B 1A 4 7 9 12 1Y 2Y 3Y 4Y 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 A/B 1A 1B 1Y 2A 2B 2Y GND VCC G 4A 4B 4Y 3A 3B 3Y 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 1

31、2 11 GND 3Y 3A 2A 1AVCC 6A 5A 4A 6Y 5Y 4Y 2Y 1Y 1 2 3 4 5 6 7 14 13 12 11 10 9 8 C C TG C C C C C C TG C C TG TG PRE7 CLK1 D2 CLR6 Q5 Q3 Tab internally connected to SOURCE pin 7D 5F 1C 2L 3X 4S CURRENT LIMIT ADJUST STOP LOGIC STOP OSCILLATOR WITH JITTER SAW LIQHT LOAD FREQUENCY REDUCTION CLOCK HALF

32、FREQ LINE SENSE OVAIV 1 V CONTROL (1C) LINE-SENSEL (2L) DRAIN (7D) SOURCE (4S) FREQUENCY (5F) EXTERNAL CURRENT LIMIT (3X) 5.0V 6.8V 4.6V INTERNAL UV COMPARATOR VBG VBG+VT IFB ZC RE VC VI(LIMIT) SOFT START SOFT- START ON/OFF DCMAXDCMAX DMAX SOFT START +8 SHUTDOWN AUTO-RESTART SHUNT REGULATOR/ ERROR A

33、MPLIFIER S PWM COMPARATOR R Q HYSTERETIC THERMAL SHUTDOWN CURRENT LIMIT COMPARATOR INTERNAL SUPPLY 0 1 CONTROLLED TURN-ON GATE DRIVER LEADING EDGE BLANKING ?SN74LVC157APWR (X6786A0) Data Selector CONTROL: IC046, 051 ?SN74LVC2G74DCTR (X8709A0) Flip Flop CONTROL: IC042 ?SN74LVC245APWR (XZ287A0) Bas Tr

34、ansceiver CONTROL: IC054 ?TC74LCX04FT (X8415A0) Inverter CONTROL: IC064 ? (X8576A0) Regulator PSANH: IC201 NXAMP4x4 43 CIRCUIT BOARDS （基板図） Note: See parts list for details of circuit board component parts. 注： 部品詳細参照。 CONTENTS （目次） CONTROL Circuit Board (X8710D0) .46 INANH Circuit Board (X8714C0) .4

35、5 LCD SPACER Circuit Board (X8711E0) .62 NX-DFLT Circuit Board (YC233A0) .63 OPT-AN Circuit Board (X8711E0) .62 OUTANH Circuit Board (X8714C0) .50 PAANH Circuit Board (X8712G0) .56 PN-AN Circuit Board (X8711E0) .52 PSANHA, PSANHB Circuit Board (X8715G0) .58 RS232-GPI Circuit Board (X8711E0) .62 NXAM

36、P4x4 44 BALANCED INPUTS DCBA to CONTROL CN006 NXAMP4x4 45 INANH Circuit Board Pattern side （側） Component side （部品側） 2NA-WJ97320-10 0 A A to PSANHA CN313 to PSANHB CN313 to PSANHA CN201 to OUTANH CN809, CN810 to PN-AN CN001 NXAMP4x4 46 CONTROL Circuit Board Component side （部品側） 2NA-WR77020-10 0 A A A

37、to OUTANH CN809, CN810 to PAANH (CH1) CN401 to PAANH (CH2) CN401 to PAANH (CH3) CN401 to PAANH (CH4) CN401 to RS232-GPI CN201 to INANH W701 to OPT-AN CN301 NXAMP4x4 47 2NA-WR77020-10 0 CONTROL Circuit Board Component side （部品側） B B NXAMP4x4 48 CONTROL Circuit Board Pattern side （側） 2NA-WR77020-10 0

38、B B NXAMP4x4 49 CONTROL Circuit Board Pattern side （側） 2NA-WR77020-10 0 to CONTROL CN016 to CONTROL CN016 to PSANHB CN306 to PSANHA CN306 to PSANHA CN317 to PSANHB CN317 POWER OUTPUTS Speakon DSpeakon CSpeakon BSpeakon A to PSANH CN202 to PAANH (CH1) W405 (ORANGE) to PAANH (CH2) W405 (ORANGE) to PAA

39、NH (CH3) W405 (ORANGE) to PAANH (CH4) W405 (ORANGE) NXAMP4x4 50 OUTANH Circuit Board Component side （部品側） 2NA-WJ97320-10 0 NXAMP4x4 51 OUTANH Circuit Board Pattern side （側） 2NA-WJ97320-10 0 A A 1 MUTE SIGNAL PROTECT PEAK SELECT MUTEMUTE 23 NXAMP4x4 52 PN-AN Circuit Board Component side （部品側） 2NA-WJ9

40、7170-10 2 A A to CONTROL CN009 POWER STAND-BY AMP PROTECT EMUTE 4A vol B Encoder NXAMP4x4 53 PN-AN Circuit Board Component side （部品側） 2NA-WJ97170-10 2 B B NXAMP4x4 54 PN-AN Circuit Board Pattern side （側） 2NA-WJ97170-10 2 B B NXAMP4x4 55 PN-AN Circuit Board Pattern side （側） 2NA-WJ97170-10 2 A A B B t

41、o CONTROL CN012, CN013, CN014, CN015 to OUTANH CN805, CN806, CN807, CN808 to PSANH CN312, CN315 NXAMP4x4 56 PAANH Circuit Board Pattern side （側） Component side （部品側） 2NA-WR77710-20 1 A A B B to PSANH CN305, CN308 to PSANH CN316, CN309 to PSANH CN307, CN310 NXAMP4x4 57 PAANH Circuit Board Pattern sid

42、e （側） Component side （部品側） 2NA-WR77710-20 1 to PAANH W403 to OUTANH W804, W805 B A to PAANH W401 to CONTROL CN007, CN008 to FUN to FUN to CONTROL CN011 to OUTANH W801 7 8 9 10 11 12 6 5 4 3 2 1 to PSANHB CN203 to PAANH W401 to PAANH W402 to PAANH W404 to PAANH W403 to PAANH W404 to OUTANH W802, W803

43、 to PAANH W402 NXAMP4x4 58 PSANHA, PSANHB Circuit BoardReduction: 7/10 Component side （部品側） 2NA-WJ97350-70 3 B A NXAMP4x4 59 PSANHA, PSANHB Circuit BoardReduction: 7/10 Component side （部品側） 2NA-WJ97350-70 3 B B NXAMP4x4 60 PSANHA, PSANHB Circuit BoardReduction: 7/10 Pattern side （側） 2NA-WJ97350-70 3

44、 B B 6 5 4 3 2 1 7 8 9 10 11 12 NXAMP4x4 61 PSANHA, PSANHB Circuit BoardReduction: 7/10 Pattern side （側） 2NA-WJ97350-70 3 to CONTROL CN010 to CONTROL CN017 GPIO Expansion slot RS232 NXAMP4x4 62 RS232-GPI Circuit Board OPT-AN Circuit Board LCD SPACER Circuit Board Pattern side （側） Pattern side （側） Pa

45、ttern side （側） Component side （部品側） Component side （部品側） Component side （部品側） 2NA-WJ97320-10 0 Expansion slot NXAMP4x4 63 NX-DFLT Circuit Board Pattern side （側） Component side （部品側） 2NA-WT66120-10 0 SLOT jig a-1 /ETH_CS /ES_CS SPI_CLK SPI_MISO SPI_MOSI ES_SERIAL_RX ES_SERIAL_TX INT_FROM_ES ES_GPI1 ES_GPI2 ES_GPI3 ES_I2S_DATA0 ES_I2S_DATA1 ES_MCLK ES_SCLK ES_LRCK SOURCE_SEL Q0 Q1 Q2 Q3 b-1 a-40b-40 3.3D LV169 Q0 Q1 Q2 Q3 LV169 XTAL 12.288MHz