Yamaha-NXAMP-4-X-1-Service-Manual电路原理图.pdf

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1、SERVICE MANUAL PANEL LAYOUT .3 CIRCUIT BOARD LAYOUT .4 SERVICE PRECAUTIONS .5 OVERALL ASSEMBLY WIRING.7 DISASSEMBLY PROCEDURES .17 LSI PIN DESCRIPTION.26 IC BLOCK DIAGRAM .27 CIRCUIT BOARDS.33 TEST PROGRAM.52 INSPECTIONS .59 UPDATING THE FIRMWARE .64 PARTS LIST IC HIGH: Bypass mode (through) (2) Tes

2、t, must be connected to DGND (2) Audio data latch enable input/output (1) Audio data bit clock input/output (1) Audio data digital output Digital GND Digital power supply, 3.3 V System clock input: 256 fs, 384 fs, 512 fs or 768 fs (3) Oversampling ratio select input / LOW: x 64 fs, HIGH: x 128 fs (2

3、) Audio data format select input 0 / See data format section (2) Audio data format select input 1 / See data format section (2) Mode select input 0 / See data format section (2) Mode select input 1 / See data format section (2) PIN NO. NAMEI/OFUNCTION PCM1803ADBR (X7357B0) A/D CONVERTERCONTROL: IC03

4、5, IC036, IC037, IC038 I I I I I I/O I/O O I I I I I I (1) Schmitt trigger input (2) Schmitt trigger input with internal pulldown (50 k, typically), 5 V tolerant (3) Schmitt trigger input, 5 V tolerant NXAMP4x1 27 I IC BLOCK DIAGRAM D0 Q0 RDQ QD CP FF1 D1 Q1 RDQ QD CP FF2 D2 Q2 RDQ QD CP FF3 D3 Q3 R

5、DQ QD CP FF4 D4 CP MR 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 OU

6、T6 REFO7 REFO6 REFI7 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

7、I2C/SPI Control Port 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 Q1

8、5 Q12 Q13 E 1 2 3 4 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

9、 Q2 12 Q1 13 Q0 14 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 NXAMP4x1 28 Switched Capasito DAC and Filterr Selectable

10、 Interpolation Filter 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 Interfa

11、ce/Loopback 3.3V 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 Differe

12、ntial Output Right 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

13、LEVEL SHIFT HV LEVEL 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

14、2 SHI Interface 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 G

15、en- erator EXTAL 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+5

16、6 56-bit MAC Two 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 (X2382A02) Driver PSANL: IC302, 303 LD1117STR (X8495A0) Regulator CONTROL: IC024 MAX32

17、21CPWR (X2757A0) RS-232C Driver CONTROL: IC041 DSPB56371AF180 (X8489A0) DSP CONTROL: IC022, 023 NXAMP4x1 29 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 St

18、ate Machine 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-Inv

19、erting Input 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

20、Q12 Q4 R1 R2 R3 INPUT INPUT OUTPUT GND INPUT OUTPUT GND MX25L1605AM2C-12G (X8718A0) Flash Memory CONTROL: IC039 NJM431U (TE1) (X6770A0) SHUNT Regulator PSANL: IC204 NJM2068M-D (X3505A0) Operational Amplifier CONTROL: IC002-005, 008-011, 018-021, 028-034 INANL: IC701, 702 OUTANL: IC801, 802 NJM79M09D

21、L1A (X5366A0) Regulator CONTROL: IC007 NJM7815FA (XD853A0) Regulator +15V PSANL: IC202, 203 NJM78M09DL1A (XZ940A0) Regulator CONTROL: IC006 NJM2904V (TE1) (XR532A0) Operational Amplifier CONTROL: IC047, 048, 050, 052 NXAMP4x1 30 ON/OFF circuit Voltage regulator Soft Start - + Oscill ator fo Conversi

22、on circuit Q R S + - Over Heat Detection 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 1

23、2 15 8 10 FLIP FLOP TO INTRENAL CIRCUITRY 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 1V

24、Vref ER.AMP Soft Start Latch Buffer 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 1/12

25、8 Decimation Filter With High-Pass 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 PSANL: IC205 PQ1CX12H2ZP (X6188A0) Regulator PSANL: IC208 SG2525AN (X8960A0) PW

26、Modulator PSANL: IC301 PCM1803ADBR (X7357B0) A/D Converter CONTROL: IC035-038 NXAMP4x1 31 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

27、9 R C1 1D 6D 14 6Q 12 R C1 1D 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

28、 Y2 Y3 Y4 Y5 Y6 Y7 Y8 8 9 10 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

29、14 13 12 11 10 9 8 SN74LV273APWR (X5074A0) D-type Flip Flop CONTROL: IC057-061 SN74LV4052APWR (X6976A0) Demultiplexer CONTROL: IC049 SN74LVC00APWR (X5406A0) NAND CONTROL: IC040 SN74LV541APWRBUS B (X5966A0) Buffer/Driver CONTROL: IC055, 056 PN-AN: IC001 SN74ABT245BNSR (XU009A0) BUS Transceiver CONTRO

30、L: IC062 SN74LV14APWR (X6688A0) Inverter CONTROL: IC063 NXAMP4x1 32 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

31、 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 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 L

32、IQHT LOAD FREQUENCY REDUCTION CLOCK HALF 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 SHUTD

33、OWN AUTO-RESTART SHUNT REGULATOR/ ERROR AMPLIFIER 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:

34、 IC042 SN74LVC245APWR (XZ287A0) Bas Transceiver CONTROL: IC054 TOP246YN 1PD (X8576A0) Regulator PSANL: IC201 TC74LCX04FT (X8415A0) Inverter CONTROL: IC064 NXAMP4x1 33 CONTENTS CONTROL Circuit Board(X8710C0) .34 INANL Circuit Board(X8714C0) .38 LCD SPACER Circuit Board(X8711C0) .41 OPT-AN Circuit Boa

35、rd(X8711C0) .41 OUTANL Circuit Board(X8714C0) .39 PAANL Circuit Board(X8713D0) .46 PN-AN Circuit Board(X8711C0) .42 PSANL Circuit Board(X8715D0) .47 RS232-GPI Circuit Board(X8711C0) .41 I CIRCUIT BOARDS Note: See parts list for details of circuit board component parts. NXAMP4x1 34 N.C. to PSANL CN31

36、3 to PSANL CN201 to OUTANL CN809, CN810 to PN-AN CN001 A A CONTROL Circuit Board 2NA-WJ97120-10 2 Component side NXAMP4x1 35 Lto OUTANL CN809, CN810 to RS232-GPI CN201 to INANL W701 to OPT-AN CN301 A A to PAANL (CH2) CN403 to PAANL (CH3) CN401 to PAANL (CH4) CN403 to PAANL (CH1) CN401 2NA-WJ97120-10

37、 2 Component side NXAMP4x1 36 B B CONTROL Circuit Board Pattern side 2NA-WJ97120-10 2 NXAMP4x1 37 B B Pattern side 2NA-WJ97120-10 2 NXAMP4x1 38 to CONTROL CN006 BALANCED INPUTS DCBA INANL Circuit Board 2NA-WJ97320-10 Component side Pattern side NXAMP4x1 39 to CONTROL CN016 to CONTROL CN016 to PSANL

38、CN306 to PSANL CN317 POWER OUTPUTS Speakon DSpeakon CSpeakon BSpeakon A to PSANL CN202 to PAANL (CH1) W405 (ORANGE) to PAANL (CH2) W406 (YELLOW) to PAANL (CH3) W405 (ORANGE) to PAANL (CH4) W406 (YELLOW) OUTANL Circuit Board 2NA-WJ97320-10 Component side NXAMP4x1 40 OUTANL Circuit Board 2NA-WJ97320-1

39、0 Pattern side NXAMP4x1 41 to CONTROL CN10 to CONTROL CN017 GPIO Expansion slot RS232 RS232-GPI Circuit Board 2NA-WJ97170-10 1 Component side Pattern side Component sidePattern side Component sidePattern side OPT-AN Circuit Board LCD SPACER Circuit Board NXAMP4x1 42 A A 1 MUTE SIGNAL PROTECT PEAK SE

40、LECT MUTEMUTE 23 PN-AN Circuit Board 2NA-WJ97170-10 1 Component side NXAMP4x1 43 A A to CONTROL CN009 POWER STAND-BY AMP PROTECT EMUTE 4A vol B Encoder 2NA-WJ97170-10 1 Component side NXAMP4x1 44 B B PN-AN Circuit Board 2NA-WJ97170-10 1 Pattern side NXAMP4x1 45 2NA-WJ97170-10 1 B B Pattern side NXAM

41、P4x1 46 A A B B to CONTROL CN012, CN014 to OUTANL CN805, CN807 to OUTANL CN806, CN808 to CONTROL CN013, CN015 PAANL Circuit Board 2NA-WJ97310-10 1 Component side Pattern side Reduction: 9/10 NXAMP4x1 47 A A B B to PSANL CN312, CN315 to PSANL CN307, CN310 to PSANL CN316, CN309 to PSANL CN305, CN308 2

42、NA-WJ97310-10 1 Component side Pattern side Reduction: 9/10 NXAMP4x1 48 to PAANL W403 to OUTANL W805 B A to PAANL W401 to CONTROL CN007 to FUN to FUN to CONTROL CN011 to OUTANL CN202 to PAANL CN401 to PAANL W402 to PAANL W404 to PAANL W403 to PAANL W404 to OUTANL W802 to PAANL W402 7 8 9 10 11 12 6

43、5 4 3 2 1 PSANL Circuit Board 2NA-WJ97350-50 Component side Reduction: 7/10 NXAMP4x1 49 2NA-WJ97350-50 B A Component side Reduction: 7/10 NXAMP4x1 50 B B PSANL Circuit Board 2NA-WJ97350-50 Pattern side Reduction: 7/10 NXAMP4x1 51 B B 6 5 4 3 2 1 7 8 9 10 11 12 2NA-WJ97350-50 Pattern side Reduction:

44、7/10 NXAMP4x1 52 ITEST PROGRAM 1.Required items Computer: DOS/V computer x1 (Pentium 200MHz or more, Windows XP, USB Port) Software: Software for version up (JTAG Programmer) Cable: RLINK-ST (USB-JTAG adapter) Measuring equipment: Power consumption meter Tools: RS-232C jig x1, GPI jig x1, SLOT jig x

45、1 RS-232C jig D-SUB 9 pin female connector GPI jig D-SUB 25 pin male connector SW1 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 Q

46、1 Q2 Q3 LV169 XTAL 12.288MHz 3.3D 2.Test connection image NXAMP Measuring instrument SLOT, GPI, RS-232C jig NXAMP4x1 53 3.Operation 3-1. Entry of the test program While holding down the SELECT4, MUTE4 and A buttons simultaneously, turn the power switch on. The start up screen appears on the LCD. Start Up Screen Boot 1.00 WAIT.