NAD D3020 Service Manual
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NAD D3020 Service Manual

Hybrid digital amplifier
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D3020
Hybrid Digital Amplifier
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Summary of Contents for NAD D3020

  • Page 1 D3020 Hybrid Digital Amplifier...

  • Page 2: Table Of Contents

    TABLE OF CONTENTS DESCRIPTION PAGE SERVICE CAUTION…………………………………………………………..3-4 SPECIFICATIONS…………………………………………………………...5 WIRING DIAGRAM……………………………………………………………..6 BLOCK DIAGRAM……………………………………………………. …..7-10 TROUBLE SHOOTING GUIDE…………………..........11 ……………………………………………………...12-21 CIRCUIT DIAGRAMS PCB LAYOUT……………………………………………………………….22-29 ELECTRICAL PARTS LIST…………………………………………….30-50 EXPLODED VIEWS ………………………………………………………51-52 EXPLODED VIEW PARTS LISTS ……………………………………… 51-52...
  • Page 3 PRODUCT SAFETY SERVICING GUIDELINES CAUTION : DO NOT ATTEMPT TO MODIFY THIS PRODUCT IN VOLTAGE MEASURE MUST NOT EXCEED 75 VOLTS R.M.S. ANY WAY. NEVER PERFORM CUSTOMIZED INSTALLATIONS THIS CORRESPONDS TO 0.5 MILLIAMP AC ANY VALUE WITHOUT MANUFACTURER’S APPROVAL. UNAUTHORIZED EXCEEDING THIS LIMIT CONSTITUTES A POTENTIAL MODIFICATIONS WILL NOT ONLY VOID THE WARRANTY, BUT SHOCK HAZARD AND MUST BE CORRECTED IMMEDIATELY.
  • Page 4 SERVICING PRECAUTIONS CAUTION : Before servicing the A/V Receiver covered by this Electrostatically Sensitive (ES) Devices service data and its supplements and addends, read and follow the Some semiconductor (solid state) devices can be damaged easily by SAFETY PRECAUTIONS. NOTE : if unforeseen circumstances static electricity.

  • Page 5: Specifications

    * Gross dimensions include extended buttons and rear panel terminals. ** Non-metric measurements are approximate. NAD Electronics will not assume any liability for errors being made by retailers, custom installers, cabinet makers, or other end users based on information contained in this document.

  • Page 7: Block Diagram

    +/-35V -20V(VDR) CS42528 +/-7V 3V3D DAC 5 Clipping Control UART GPIO Current sense Bluetooth Module IIS SWITCH 1XTL084 DAC 7 NAD design NC7SV157 X 7 HP OUT 3V3D NE5532 MUTE HP OUT L&R +/-12V L&R CRYSTAL 6MHz CRYSTAL USB AUDIO 22.5792MHz...
  • Page 8 CS42528 PREAMP BOARD VARX AGND LPFLT DGND DGND VD RXP0 RXP1/GPO1 RXP2/GPO2 C&U Bit Control RXP3/GPO3 Data Buffer AD0/CS S/PDIF Clock/Data RXP4/GPO4 Port AD1/CDIN RXP5/GPO5 Decoder Recovery SDA/CDOUT Format RXP6/GPO6 SCL/CCLK Detector RXP7/GPO7 OMCK MUTEC MUTE Mult/Div RMCK Internal MCLK FILT+ Serial SAI_LRCK...
  • Page 9 NJW1194 PREAMP BOARD Ach Tone Filter V+ GND VOut Bias Control Logic In A1 In A2 Zero Cross Detection In A3 In A4 OutA TONE In B1 In B2 OutB In B3 TONE In B4 Bch Tone Filter...
  • Page 10 TAS1020APFB PREAMP BOARD USB Serial 1520 Byte Interface CODEC C–Port SRAM Engine Interface Suspend /Resume Logic Global 6 MHz Control/Status Registers 8052 Core I 2 C 8K ROM I 2 C Bus Control 6016 Byte RAM Port–3 Port–1...

  • Page 11: Trouble Shooting Guide

    TROUBLESHOOTING GUIDE Connect AC Cord from D3020 CHECK THE LED CONTROL CIRCUIT IS THE AMBER LED LIGHTED? IS IT RED? ,AND PROTECET CIRCUIT CHECK TOUCH BOARD OR IS IT WHITE? SOFTWARE ERROR CHECK THE 5V SUPPLY CIRCUIT CAN PRESSING STB TOUCH KEY MAKE...

  • Page 12: Circuit Diagrams

    +12V RM04 CM05 BAS316 C484 TL082 TL082 AGND 330K 22uF/16V CM08 CM07 47uF 220nF,63V 0.1uF AGND AGND C496 NAD Audio sense Vp1.0 47U/16V 3V3DA 5VDA 5VDA 5VDA C525 47UF DA_RST C300 C301 C302 C303 C304 DA_RST DA_INT 100N UES1C330MEM DA_INT...
  • Page 13 1.PREAMP VM2.1(2/3) R120D R120C R120B R120A R119D R119C R119A...
  • Page 14 1.PREAMP VM2.1(3/3) PRE_USB_Vm1.2...
  • Page 15 2. CONNECTING 2 BOARD CONNECTOR BOARD...
  • Page 16 4.OUT PUT AND HEADPHONE BOARD...
  • Page 17 5.SUB OUT BOARD 6.POT BOARD R930 R931 J906 S900 C914 C915 C916 ENCODE 100n 100n FFC6 10u/10v fgnd 7.TRIGGER BOARD Tigger board S100 J103 R152 DGND 3V3S 3V3S 47KJ BASS DGND 3V3S 10KJ R153 R154 trig in J101A CON5 DTC114EKA 3V3S Q100 10KJ...
  • Page 18 8.FPP BOARD...
  • Page 19 9.TOUCH A BOARD GNDA GNDA J913 J914 J915 J916 GNDA GNDA Header 3X2 Header 3X2 Header 3X2 Header 3X2 SOURCE POWER GNDA GNDA 10.TOUCH B BOARD R935 R926 R927 R928 R929 C913 10U 10V GNDB CON900 D918 D914 D915 D916 D917 LED_R N.I.
  • Page 20 11.PSU-1 BOARD...
  • Page 21 12.PSU-2 BOARD...
  • Page 22 1.PREAMP BOARD AND CONNECTORING 2 BOARD FB102 FB100 XM302 FB101 R106 XM300 C129 C100 R123 C105 R130 U104 C121 R128 C124 TCH_STB AGND TCH_SC C120 AGND 3V3S AGND ENCVB C146 ENCVA PGDATA LED WA PGCLK 3V3D LED AA C141 LED RA RM07 RM04 CM08...
  • Page 23 R449 R393 C410 R351 D301 C409 R344 R440 R415 C348 R342 C442 R417 C438 R416 R426 NAD D3020 Output Vm1.0 NAD ELECTRONICS COPYRIGHT C 2013 C444 C450 C466 C426 C468 D317 C451 R422 D318 C380 C434 C432 C403 C406 R423...
  • Page 24 3.SUB OUT BOARD D601 Q603 Q601 R603 R604 R601 Q602 C601 R602 Top Layer Bottom Layer 4.POT BOARD Top Layer 5.HEADPHONE BOARD Top Layer...
  • Page 25 6.TRIGGER AND CONNECTING BOARD NAD D3020 Trigger Vm1.0 NAD D3020 Trigger Vm1.0 C497 D3020 Connecting Vm1.0 C498 J103 J103 J603 J101 J101 D3020 Connecting Vm1.0 C497 C498 J603 NAD D3020 Trigger Vm1.0 NAD D3020 Trigger Vm1.0 C497 D3020 Connecting Vm1.0...
  • Page 26 7. FPP BOARD Top Layer Bottom Layer...
  • Page 27 8. TOUCH A BOARD NAD D3020 KEY BOARD A Vm1.0 9. TOUCH B BOARD J912 NAD D3020 KEY BOARD B Vm1.0 J911 D915 D918 D917 D916 D914...
  • Page 28 10.PSU-1 BOARD Top Layer Bottom Layer...
  • Page 29 11.PSU-2 BOARD TH102 C122 C125 HS40-D3020-PSU-2-VM1.0.PCB D3020 Power Supply Board...

  • Page 30: Electrical Parts List

    ELECTRICAL PARTS LIST...
  • Page 31 100Ω,0603,1/10W,±1%,RC0603FR- t s i 07100RL t s i Ω,0603,1/10W,±1% 180Ω,0603,1/10W,±1%,RC0603FR- R8, R37, R55, R84 07-91800-00 Chip Resistor 07180RL 200Ω,0603,1/10W,±1%,RC0603FR- R14, R29, R33, R61 07-92000-00 Chip Resistor 07200RL R18, R27, R36, R41, R76, R94, 220Ω,0603,1/10W,±1%,RC0603FR- 07-92200-00 Chip Resistor R125, R143 07220RL 270Ω,0603,1/10W,±1%,RC0603FR- R53, R57, R133, R134 07-92700-00...
  • Page 32 1uK,16V,0603,X7R,C1608X7R1C105 t i c 220nK,25V,0603,X7R,C1608X7R1E2 t i c 24KT C9, C12, C34, C37 26-22251-10 Ceramic Chip Capacitor 2n2J,50V,0603,NPO C6, C16, C31, C41 26-39151-00 Ceramic Chip Capacitor 390PJ,50V,0603,NPO C11, C18, C19, C20, C36, C43, C44, 470nK,25V,0603,X7R,C1608X5R1E4 26-47421-20 Ceramic Chip Capacitor C45, C51 74KT C3, C23, C28, C48 26-47151-00...
  • Page 33 PCB INFO VM2.1,FR-4,1.6mm,TG130,155.7× A16-32302-23 Preamp PCB 80mm VM2.1,FR-4,1.6mm,TG130,170× 4xconnecting2,2xPreamp A16-32320-23 Preamp+connecting2 ASSY 165.7mm DIODES D101, D102, D103, D104, D105, D106, D302, D303, D304, D305, D306, D307, D314, D315, D316, D319, D501, D502 Surface Mount Schottky Barrier SS12 SMA Rectifier DM01, DM02, DM03, DM04, DM05 33-20316-01 High speed Diode BAS316...
  • Page 34 RESISTORS R117, R118, R349, R515, R516, R517, R518, R519, R520, R524, 07-90000-00 Chip resistor 0Ω, 0603, ±5% R525 2.7Ω,0603,1/10W,±1%,RC0603FR- t s i 072R7L 3.3Ω,0603,1/10W,±5%,RC0603JR- t s i 073R3L 4.7Ω,0603,1/10W,±1%,RC0603FR- t s i 074R7L R100, R101, R102, R131, R500, 10Ω,0603,1/10W,±1%,RC0603FR- 07-91009-00 Chip resistor R502 0710RL...
  • Page 35 R115, R116, R123, R128, R130, R149, R150, R302, R305, R331, 10KΩ,0603,1/10W,±1%,RC0603FR- 07-91002-00 Chip resistor R332, R429, R510, R511, R528, 0710KL RM05,R526 11KΩ,0603,1/10W,±1%, RC0603FR- t s i 0711KL 15.4KΩ,0603,1/10W,± t s i 1%,RC0603FR-0715K4L 22KΩ,0603,1/10W,±1%,RC0603FR- t s i 0722KL 33KΩ,0603,1/10W,±1%,RC0603FR- t s i 0733KL R129, R132, R133, R319, R323, 47KΩ,0603,1/10W,±5%,RC0603JR-...
  • Page 36 t i c C110, C111, C112, C374 26-22351-00 Chip capacitor 22nK,50V,0603,X7R C100, C103, C106, C108, C117, C118, C119, C120, C121, C122, C124, C129, C130, C136, C137, C139, C142, C144, C303, C307, C310, C311, C312, C313, C319, C320, C323, C326, C330, C332, C335, C337, C338, C340, C353, 26-10451-10 Ceramic Chip Capacitor...
  • Page 37 24.576MHz, C3391-24.576MHz,SMD l l i 22.5792MHz, C3398- 22.579200MHz,SMD 5*7 6.000000 MHZ HCM49,HCM49- 6.000MABJT CONNECTORS 1.27mm,2×16Pin, CNT-M127-2*16- GM-4/8/5/0-150-P-TR PCB-3: Bluetooth Module BOARD CIRCUIT NO. DESCRIPTION PART NO. PCB INFO VM1.0,FR- A16-23309-21 Bluetooth PCB 4,1.0mm,TG130,38.3mmX17.7mm VM1.0,FR- A16-23390-21 Bluetooth PCB 4,1.0mm,TG130,116.84mmX125.18 DIODES TRANSISTORS i f i t CSR8645A04-IBBC-R, 5.5 x 5.5 x 1.0mm...
  • Page 38 100nF,16V,0402,X7R,± t i c 10%,C1005X7R1C104KT 470nF,10V,0402,X5R,C1005X5R1A4 C1, C4, C5, C9, C23 26-47411-08 SMD Capacitor 74KT000E Metallized Polyester Film CL23B-50V-104J RA,100nF Capacitor Metallized Polyester Film CL21X-63V-104J R5.0 Capacitor Metallized Polyester Film CL23B-63V-224JR, Capacitor C241J224J20A201 Metallized Polyester Film CL23B-50V-334J RA,330nF Capacitor Metallized Polyester Film C404, C405, C428, C429 25-15461-02 CL23B-63V-154J RA,150nF...
  • Page 39 66-359001-0 U type bracket SECC-N5 T=0.8 61-023504-0 Machine Screw MB3×4 61-063506-0 Machine Screw MF3×6 61-063506-1 Machine Screw MF3×6 61-062506-5 Machine Screw MF2.5X6mm 61-023506-0 Machine Screw MB3×6 61-023508-2 Machine Screw MB3×8 61-023510-0 Machine Screw MB3×10 85-359002-0 Plastic Screw M3-6FN 85-359001-0 Plastic Spacer HP-5 90-325002-0 non clothes bag...
  • Page 40 1.1KΩ,0603,1/10W,±1%,RC0603FR- t s i 071K1L 2.7KΩ,0603,1/10W,±1%,RC0603FR- t s i 072K7L 10KΩ,0603,1/10W,±1%,RC0603FR- t s i 0710KL 10KΩ,0603,1/10W,±1%,RC0603FR- R315, R361, R365, R368 07-91002-00 Chip resistor 0710KL 22KΩ,0603,1/10W,±1%,RC0603FR- t s i 0722KL 47KΩ,0603,1/10W,±1%,RC0603FR- t s i 0747KL CRCW060356K0FKEA,56KΩ0603, R372, R405, R406, R414, R418 07-95602-00 Chip resistor 1/10W, 1%...
  • Page 41 t s i Ω, 3W, ±5% t s i Ω,3W,±5%,Pitch=10mm CAPACITORS Bi-polarized Alu Electrolytic C415, C419, C430, C449 06-47011-21 CD71H,47uF,16V,±20%,F2.5 Capacitor Bi-polarized Alu Electrolytic CD71H,47uF,16V,± Capacitor 20%,F5.0,5x11.5mm 10uF,50V,±20%,105 C363, C443, C452 06-10051-20 Alu Electrolytic Capacitor ℃,EEUFC1H100L(H) C364, C377, C407, C408, C421, CD284, 100uF, 25V, ±20%, 105℃, 06-10121-12 Alu Electrolytic Capacitor...
  • Page 42 PCB-7:TRIGGER BOARD PCB INFO · × VM1.2,FR-4,1.6mm,TG130,118× A16-32321-23 Trigger+Connecting PCB 82.77mm TRANSISTORS i g i t s i RESISTORS 10Ω,0603,1/10W,±1%,RC0603FR- t s i 0710RL 1KΩ,0603,1/10W,±1%,RC0603FR- t s i 071KL 6.8KΩ,0603,1/10W,±1%,RC0603FR- t s i 076K8L 10KΩ,0603,1/10W,±1%,RC0603FR- R153, R157, R160 07-91002-00 Chip resistor 0710KL 47KΩ,0603,1/10W,±1%,RC0603FR- t s i...
  • Page 43 66-359003-0 3.5 bracket SECC-N5 T=0.8 61-022506-5 Machine screw MB2.5×6 61-022504-1 Machine screw MB2×4 PCB-10:CONNECTING BOARD PCB INFO A16-32316-23 Connecting PCB VM1.2,FR-4,1.6mm,TG130,17× VM1.2,FR-4,1.6mm,TG130,118× A16-32321-23 Trigger+Connecting PCB 82.77mm CONNECTORS Bi-polarized Alu Electrolytic CD71H,47uF,16V,±20%,F2.5 Capacitor Metallized Polyester Film CL23B-63V-224JR, Capacitor C241J224J20A201 2.54mm, 2×18Pin, CNT-F254-2*18- GS-850/3.0-N 2.54mm,2×18Pin, CNT-M254-2*18- GS-6/3-N...
  • Page 44 R902, R906, R924, R925, R952 07-90101-10 Chip Resistor NET 100Ω, ±5% R0603X4 CAPACITORS C910, C920, C921 26-10151-00 Ceramic Chip Capacitor 100pF,50V 0603,NPO C902, C904, C906, C907, C909, 26-10411-00 Ceramic Chip Capacitor 100nF,16V 0603, X7R C911, C912 t i c t i c ±...
  • Page 45 UL1569#26AWG*6C,UL1691#24AW G*2C白+GROUND WIRE*2C,ONE END JOIN HY-10Y,OTHER JOIN SAN-10,L=80mm 2.0mm, 2x3pin, CNT-F200-2*3-GS- J909, J910, J911, J912 13-22006-06 Connector 430/2.4 PCB-13:Touch A BOARD PCB INFO VM1.1,FR-4,1.0mm,TG130,80× A16-32308-22 Touch A PCB 44.5mm VM1.1,FR-4,1.0mm,TG130,113.5× A16-32360-22 FPP PCB ASSY 126.2mm CONNECTORS 2.0mm, 2x3Pin,CNT-M200-2*3-GM- J913, J914, J915, J916 13-12006-05 Connector 4/6/0-2.0-TR...
  • Page 46 3.3KΩ,0805,1/8W,±1%,RC0805FR- t s i 073K3L 10KΩ,0805,1/8W,±1%,RC0805FR- t s i 0710KL 22KΩ,0805,1/8W,±1%,RC0805FR- t s i 0722KL 47KΩ,0805,1/8W,±1%,RC0805FR- t s i 0747KL 22Ω,1206,1/4W,±1%,RC1206FR- R163, R164, R165, R166 07-92209-02 Chip resistor 0722RL 150Ω,1206,1/4W,±1%,RC1206FR- t s i 07150RL 220KΩ,1206,1/4W,±1%,RC1206FR- R106, R107, R108, R109 07-92203-02 Chip resistor 07220KL 4.7KΩ,1206,1/4W,±1%,RC1206FR-...
  • Page 47 Q118, Q119, Q120, Q1210用 t s i INDUCTORS Φ8 × × c t i i r r BLM21AG331SH1D, 330R/100MHz i r r 1.5A,0805 TRANSFORMERS FUSES CONNECTORS ± (TO o/p BOARD J304) 14-32304-00 4 PIN WIRES UL1569#26AWG,L=180mm (TO o/p BOARD J303) 14-32306-00 6 PIN WIRES UL1569#22AWG,L=165mm...
  • Page 48 100Ω,0603,1/10W,±1%,RC0603FR- t s i 07100RL 2.2KΩ,0603,1/10W,±1%,RC0603FR- t s i 072K2L 2.7KΩ,0603,1/10W,±1%,RC0603FR- t s i 072K7L 4.7KΩ,0603,1/10W,±1%,RC0603FR- R123, R124, R125, R126 07-94701-00 Chip Resistor 074K7L 10KΩ,0603,1/10W,±1%,RC0603FR- R130, R131, R132, R133, R134 07-91002-00 Chip Resistor 0710KL 20KΩ,0603,1/10W,±1%,RC0603FR- t s i 0720KL 22KΩ,0603,1/10W,±1%,RC0603FR- t s i 0722KL 47KΩ,0603,1/10W,±1%,RC0603FR-...
  • Page 49 77-351002-1 bottom cover ABS765B 75-351002-0 round cover ABS765B 78-359004-0 insulpad D GK-17,45×55×0.4mm METAL PARTS 66-351002-0 vent plate SUS 304 × J71-325002-0 knob_sec assy ABS+AL+ABS × × FASTENERS 61-062506-5 Machine Screw MF2.5X6mm 61-063208-0 Self Tapping Screw BTF3×8 61-023208-0 Self Tapping Screw BTB3×8 61-022206-6 Self Tapping Screw...
  • Page 50 LP34& H03VV-F 0.75mm2 3C orJA15-16250-09 AC Cord 1800mm BLACK & LS15 94-359013-0 shipping box version Label 115×85mm,R=1mm × × 157g Two-sided art 30-43230-03 Quick start Gudie paper,420X297mm,210X297mm, BLACK ACCESSORIES DTII-3P-L2+CCC 53RVV 3x0.75mm A15-10250-38 AC Cord 1800mm BLACK+DTIII-3P-04 PC323M & RVV 300/300V 0.75mm or JA15-10250-39 AC Cord 3C 1800mm Black &...

  • Page 51: Exploded Views

    Exploded View Mechanical D3020 PART LIST PART NAME REMARK ITEM PART NO. 77-351001-1 TOP PANEL 70-351003-1 BADGE 67-359001-0B REAR PLATE 70-359001-0 INNER PLATE 70-359003-0 HEAT SINK E 66-359001-0 U TYPE BRAKCET 66-351002-0 VENT PLATE 75-351002-0 ROUND COVER 77-351002-1 BOTTOM COVER...
  • Page 52 Exploded View Electrical Not Serviceable ITEM NAME 14-32306-00 14-32304-00 14-32305-00 FFC 5P 45mm 14-32314-00 FFC 14P 30mm 14-32306-01 FFC 6P 40mm 14-32310-00 14-32305-01 29-04601-02 A07-70022-10 14-32303-01 01-32315-00 HEADPHONE BOARD 01-32309-00 PSU BOARD 01-32306-00 FPP BOARD 01-32313-00 POT BOARD 01-32307-00 TOUCH B BORAD 01-32308-00 TOUCH A BOARD 01-32312-00...

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