Audiolab-Mdac-dac-sm维修电路原理图.pdf

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1、M-DAC RadioFans.CN 收音机爱 好者资料库 CONTENT M-DAC Introduction ia screen ofBottom Assembly Parts List Electronic Parts List Product Version Deviation / Specification Assembly Sketch Schematic Diagram Wir ng Di gram SilkTop Maintenance Alignment Procedure 1. 2. 3. 4. 5. 6. 7. 8. 9. 1 2-3 4-5 6-8 9 10-15 16

2、-17 18-19 20-23 24-25 10. RadioFans.CN 收音机爱 好者资料库 SPECIFICATION M-DAC M-DAC-Specification and Features-P1/2 2 . . . . . . . 32Bit 84.000MHz 512 Element MultiBit Array DAC Asynchronous USB supporting 24 Bits / 96kHz with Remote Control of PC / MAC MediaPlayer via HID support x2 192KHz 24Bits Coax SPD

3、IF Digital Inputs x2 96KHz Optical Digital Inputs High Current, High Linearity RCA Single Ended & XLR True Balanced with fully discrete JFET CROSS* Class A Output stages High Current, High Linearity CROSS* JFET Class A Headphone Amplifier Triple cascaded Jitter attenuation stages, with triple cascad

4、ed Asynchronies Clock domain isolation all but eliminating the First order effects of Jitter from the external input Test condition: AC253V, COAX: 997Hz Digital Signal,SR: 48kHz Load: 10 kohms impedance, with Filter NAL setting Z-out: 20ohms M-DAC Performance Test LRLR 1Output Level997Hz,Digital COA

5、X InputVrms2.212.224.234.22 stereo 997Hz output 2V%0.0010.0010.0010.001 stereo 20kHz output 2V%0.00050.00050.00020.0002 Line output,dB108108116116 Line output, with 22-22kHz BW and A-wtddB112112120120 4Gain0dBFS Input (0dBV)dB 5Noise Levelno signal,pre-amp outdBV-100.8-101.4102.5102.7 6DC OffsetTo m

6、easure the output DC VoltagemV0.80.5 7CrosstalkL/R Cross talk,refer to 997HzdB108108116116 8L/R differentL/R different,un-balancedB 9Phaseno reversedeg 10Freq RespondRefer to 997Hz input as 0dBr,+/-0.5dBHz 12Idle CurrentIdle Current,230VACmA ConditionUnits XLR 13.2 0.01 7.1 20-20k 0 18mA 0 20-20k 0.

7、05 2THD RCA S/N3 No.Test Items Digital OUT Test UnitsLimitLRLR 1Output LeveldBFS00.050000 2Harmonic Distortion%500 5Level LinearitydBFS-143-143-143-143 6Frequency responsedB0.5dB0.010.010.010.01 7Output impedanceohm751 32KHz 44.1KHz44.10.01 48KHz480.01 96KHz960.01 No.Test itemTrack 44.1KHz 48KHz 96K

8、Hz 48KHz 8Sampling RatekHz 96KHz 44.1KHz COAX 32, 44.1,48,96KHz (16,24bit) 580 OPT / 75 sources on the Digital to Audio Conversion process Selectable DAC Mode or Digital Pre-Amplifier Mode, allowing direct connection to Power Amplifiers and Active speakers in Digital only systems 2.7” High contrast

9、OLED display “Bit Perfect” Digital Data source analyzer Intelligent real-time Bit Depth analysis engine Displays the “True” Bit depth of the Digital input source Digital Data Decorrelation Engine Decorrelates the fixed “LSBs” data pattern within the Audio data stream when less then 24Bits. Data deco

10、rrelation at the DAC substrate level reduces both Digital and Analogue Second order effects within the DAC at the silicon Die level MS Windows LSB Data restoration for “Bit Perfect” reply corrects Windows LSB rounding errors. Allows Bit Perfect “Plug and Play” with Windows Media Player ASYNC USB Buf

11、fer level display to insure correct functionality and diagnostics of the USB HOST device in ASYNC Audio streaming mode “Actual” or “Nominal” Sampling Frequency display displays the TRUE input sampling frequency with 1Hz resolution Digital level meters in dB with Peak hold CD / DVD SPDIF subcode embe

12、dded Track and Time Display Advanced De-Jittered Optical and Coax SPDIF Output, with USB to SPDIF output. Selectable Optical or Coax Clock-Lock interface allowing “Jitter Free” Clock-Locked connection with compatible CD transports etc. Full Remote Control + External Remote / BUS I/O loop 26 Internal

13、 regulated supply rails 10 Ultra Low Noise, Low Impedance Discrete Regulators 7 User Selectable Digital Filters Fully Software upgradeable via the USB Port Master Clock Jitter less then 3pS Short Term - Measured directly at DAC “XOut” Organic Ultra Low ESR capacitors, High Tolerance Polypropylene fi

14、lm / Foil capacitors, Ultra Stable Very Low VCR 0.1% MELF SMD resistors, 4 Layer PCB External upgradeable Power supply interface for a future upgrade path CROSS Current Regulated Output Stage Solution . . . . . . . . . . . . . . . . . . . * SPECIFICATION M-DAC M-DAC-Specification and Features-P2/2 3

15、 ASSEMBLY SKETCH M-DAC 4 M-DAC-Product Exploded Drawing- 1/1P ASSEMBLY SKETCH M-DAC 5 3 2 1 M-DAC-Packing Exploded Drawing- 1/1P SCHEMATIC DIAGRAM M-DAC M-DAC-Mainboard-P1/1 6 SCHEMATIC DIAGRAM M-DAC M-DAC-Frontboard-P2/2 7 SCHEMATIC DIAGRAM M-DAC M-DAC-PSU Board-P1/1 8 WIRING DIAGRAM M-DAC M-DAC-Wi

16、ring Diagram-P1/1 9 SILKTOPSCREEN OFBOTTOM/ M-DAC-Mainboard-Top-Silkscreeen-P1/1 M-DAC 10 M-DAC SILKTOPSCREEN OFBOTTOM/ M-DAC-Mainboard-SMD-Silkscreeen-P1/1 11 SILKTOPSCREEN OFBOTTOM/ M-DAC-Front Board-Top-Silkscreeen-P1/1 M-DAC 12 SILKTOPSCREEN OFBOTTOM/ M-DAC-Front Board-SMD-Silkscreeen-P1/1 M-DAC

17、 13 SILKTOPSCREEN OFBOTTOM/ M-DAC-PSU Board-Top-Silkscreeen-P1/1 M-DAC 14 SILKTOPSCREEN OFBOTTOM/ M-DAC-Front Board-SMD-Silkscreeen-P1/1 M-DAC 15 MAINTENANCE ALIGNMENT PROCEDURE M-DAC M-DAC-Ageing Test Step-P1/2 16 MDAC Soak Test procedure Rev 0.1 Post Soak test performance verification 1.Insure tha

18、t Mains input voltage is set to +/- 5% of rated input voltage. 2.Lock to an External SPDIF source Play Music file / source. 3.Insure Display, Knob and Buttons function correctly. 4.Confirm R/C function. 5.Insure audio is replayed correctly (Headphones can be used). 6.Soak test for 8Hours. 7.Insure D

19、isplay and Buttons function correctly. 8.Insure audio is replayed correctly (Headphones can be used). 9.Inspect internals of Unit for Blown Electrolytic capacitors Blown SMD Components etc. 1.Set to COAX1, (Set Digital Generator on AP to 44.1KHz, 24 Bit, Dither, 997Hz, 0dB). 2.Check Unit is “Locked”

20、 and indicates 44.1kHz Freq. (As indicated on Display). 3.Check L & R SE Audio Outputs, Level 2.1V RMS (+/- 0.1dB). 4.Check L & R SE Audio THD, 0.0025% Max (Norm 0.001%). 5.Set AP to 997Hz -60dB, check L&R SE, SNR 54dB (=114dB). 6.Set AP to -120dB 997Hz, Check L&R SE outputs, DC Level 58dB (=118dB).

21、 11. Set AP to 44.1KHz, 24 Bit, Dither, 997Hz, 0dB. 12. Confirm COAX2, Optical 1&2 function (Locked indicated on display & Audio Signal output). 13. Confirm USB function, replay Stereo 997Hz 0dB on PC media player, confirm SE Level 2.1V RMS (+/- 0.1dB), Audio THD, 0.0025% Max (Norm 0.001%). 14. Conf

22、irm R/C function. 15. Test Optical and BNC Digital CD Output function (with AP or external DAC), Digital Output greater then =500mV Pk-Pk into 75 Ohms. 16. Completion of Post Soak Test performance verification. 1.Connect to audio System (via RCAs), Lock to external SPDIF or USB Source, confirm no un

23、due noise function OK. 2.Test all Digital inputs (Coax1, 2, Optical 1 & 2) and USB (With PC) repeat listening test. 3.Confirm Remote function. 4.Completion of Listening tests. 1.Restore unit to Factory defaults. 2.End of Shipping settings. Listening Test Shipping Settings MAINTENANCE ALIGNMENT PROCE

24、DURE M-DAC M-DAC-Ageing Test Step-P2/2 17 ASSEMBLY PARTS LIST M-DAC M-DAC-Product Parts List-P1/1 18 No.P/NPART NAMEDESCRIPTIONQTY UNIT 1340-1018420000Rknobblack painted1PCS 2243-1009410000Rplastic pad6*9*6.5MM，1PCS 3206-1018420002Rlens85.3*39.3*1.5mm, transparent1PCS 4300-1018420001-1Rfront panelsi

25、lkscreened, light grey(BLACK)1PCS 5263-0074020052REVA74*2*0.5 (thickness)mm，EVA，black3PCS 6262-0500005010Rdustproof pad5*50*0.25dustproof6PCS 7226-0330050331Rfeet pad33*5*3 (thickness) mm，PORON，black2PCS 8308-1018420000Rmetal blockpainted1PCS 9588-3000066037RscrewM3*619PCS 10231-2000000052RfeetRF11-

26、5I 、SILICON、black4PCS 11309-1018420001-1Rmain chassisblack anodized1PCS 12534-3002100906RscrewM3*1010PCS 13300-1018420002-1Rback panelsilkscreened, light grey(BLACK)1PCS 14524-2023061001RscrewM2*6.51PCS 15524-2923091016RscrewM3*9.58PCS 16215-1027420001Rbutton capsilver painted,ABS757#1PCS 17205-1018

27、420000Rbutton bracket30*40*4mm,ABS1PCS 18231-3007005102Rrubber washer5*7*1mm4PCS 19340-1018420001Rfunction buttonblack painted4PCS 20500-3050240300ARnutM3 NI2PCS 21215-1027420000Rpower buttonsilver painted,ABS757#1PCS 22262-0200013011Rwasher20*13*2.6MM，black2PCS ASSEMBLY PARTS LIST M-DAC M-DAC-Packi

28、ng Parts List-P1/1 19 No.P/NPART NAMEDESCRIPTIONQTY UNIT 1401-1018420000RTop FoamEPE white 455*330*35mm， ROHS1PCS 2401-1018420001-1RBottom FoamEPE white 455*330*90mm， ROHS1PCS 3409-1018420000ROuter Carton AUDIOLAB MDAC K=K，inner size: 455*330*127MM 1PCS ELECTRONIC PARTS LIST M-DAC 412274-2001900168R

29、WasherFR4 1.6 ，17.5*18MM1PCS 422277-0130000000RWasherTW-13610PCS 432323-1117000331RCrystal Base Insulator4.4*10.8*1.0HC-49 QW- 11PCSX1a 442324-0180130100RMicaTO-220 18*13MM10PCS 452538-3001080301RScrewM3x810PCS 462604-1018420000RHeatsinkH40mm x W23mm x D15.5mm10PCS 20 M-DAC Electronic Bom-P1/5 No.LE

30、VELP/NPARTNAMEDESCRIPTIONQTYUNITLOCATION 11022-1000023405RPower adaptor INPUT=AC120V OUTPUT=AC13.8V*2,0.5A,USA Mains Cable 1PCS 21032-1018420000RRemoteAUDIOLAB MDAC ，black 180*31PCS 31036-1307015000RBattery1.5V SIZE AAA2PCS 41055-4324260066RFFC Cable 24pin PH=1MM L=280MM C type 0.1mm black 1PCS 5108

31、8-1018420000RMain board PCBAMain board PCBA1PCS 62006-1014051123-3RElectrolytic Capacitor 100uF/10V 20% D5*11MM PH=2.5MM Lelon RXY series 105 11PCS C48.C49.C56.C57.C68.C69.C91.C92.C9 6.C99.C101 72006-1014060833RElectrolytic Capacitor 100uF16V 6.3*8 20% 105 Lelon OCRZ series 4PCSC120.C121.C130.C131 8

32、2006-1014061143-3RElectrolytic Capacitor 100uF/25V 20% D6.3*11MM PH=5MM Lelon RXY series 5PCSC75.C77.C79.C81.C83 92006-1024080803RElectrolytic Capacitor1000uF 4V8*8 20% 105 Lelon OCRZ series25PCS C25.C26.C27.C28.C29.C30.C31.C32.C3 3.C34.C35.C36.C37.C38.C39.C40.C41.C 42.C63.C64.C65.C66.C67.C87.C88 10

33、2006-1024081213RElectrolytic Capacitor 1000uF,6.3V,105DegC,8mmDia,12mmH,3.5m mPitch,Lelon,20% 4PCSC43.C45.C51.C53 112006-2214061133-1RElectrolytic Capacitor 220uF/16V 20% D6.3*11MM PH=5MM Lelon RXY series 4PCSC76.C78.C80.C82 122006-3314061123-1RElectrolytic Capacitor 330uF/10V 20% D6.3*11MM PH=5MM L

34、elon RXY series 11PCS C58.C59.C61.C70.C71.C74.C84.C94.C9 7.C100.C103. 132006-3914081223RElectrolytic Capacitor 390uF 10V 8mm Dia 12mm H 3.5mm Pitch Lelon OCRZ series 4PCSC124.C125.C134.C135. 142006-4714061113-1RElectrolytic Capacitor 470uF/6.3V 20% D6.3*11MM PH=5MM Lelon RXY series 15PCS C44.C46.C47

35、.C50.C52.C54.C55.C60.C6 2.C72.C73.C85.C86.C89.C90 152006-4724123533RElectrolytic Capacitor4700u/16V 20% Lelon RZD 12.5*35mm 10524PCS C104.C105.C106.C107.C108.C109.C110 .C111.C112.C113.C114.C115.C116.C11 7.C118.C119.C126.C127.C128.C129. 162006-5604051130RElectrolytic Capacitor 56uF/16V 20% D5*11mm 10

36、5 Lelon RXY series 4PCSC93, C95, C98, C102 172016-1017000001RCapacitor 100pF/400V 5% PH=2.5MM 2.5*7*4.6MM WIMA FKP02 4PCSC9.C12.C19.C24 182016-1021132201QRCapacitorFKP2 1000PF/100V 2.5% WIMA PCM58PCSC3.C4.C5.C6.C15.C16.C20.C21 192016-1031130001RCapacitor 10NF/100V 2.5% EVOXRIFA (PFR5103J100J13L4) 8P

37、CSC1.C2.C7.C10.C13.C14.C17.C22 202016-3317000001RCapacitor 330pF/400V 5% PH=2.5MM 2.5*7*4.6MM WIMA FKP02 4PCSC8.C11.C18.C23 212017-1240000000RICL7812CV TO-220 ST2PCSU58.U59 222017-1377000000RICMC7805CTG TO-220 ON5PCSU53.U54.U55.U56.U57 232017-1378000000RICLM337T（1.5A） TO-220 NS2PCSU64.U67 242017-138

38、0000000RICLM317T(1.5A) TO-220（ST）3PCSU63.U65.U66 252017-7510000000RICL7808 +8vTO220 ST1PCSU60 262018-9807912111RICL7912CV TO-220 ST2PCSU61.U62 272020-1022120017RPotentiometer 1K 100ppm/ 10% WI3362NOXOX-PA2- B1K 4PCSRV1.RV2.RV3.RV4 282024-1120101011RRelayHJR1-2C-12VDC3PCSRLY2.RLY5.RLY7 292044-4850000

39、000RDual 3.5mm Stereo JackDual Vertical PCB Mount 3.5mm1PCSCN7 302044-4860000000RRCA + Toslink Combo Combined 16Mbps Optical receiver & Gold plated RCA JACK JSR1583 2PCSCN3.CN4 312044-5500000000RRCA Jack BlackPCB Mount 180Deg Black AEC Connectors1PCSCN8 322044-5510000000RRCA Jack BlackPCB Mount 180D

40、eg RED AEC Connectors1PCSCN12 332044-5520000000RUBSRA-004USB, Thur Hole, Gold Plated1PCSCN6 342044-5550000000RXLR JackPCB Mount 90Deg XLR Jack LX-1601H-32PCSCN11.CN9 352044-5690000000RRCA + Toslink Combo Combined 16Mbps Optical & Gold plated RCA JACK JSR1583 1PCSCN5 362049-1309223000R6.35mm Stereo J

41、ackVertical PCB Mount 6.35mm Stereo Jack1PCSCN13 372050-0400000000RTransistor Clip10*6MM TR-15PCS U53 Support.U54 Support.U55 Support.U56Support.U57 Support. 382056-4110000000RConnector10PIN 2.54 Box Header1PCSCN1 392059-8400002331RCrystal Crystal 84MHz AT5thOT,+/-30PPM HC-49/U 3P(Centre Ground PIN)

42、 1PCSX1 402271-0180000000RPlastic PostKangyang PDC-5.5D H=5.5 MM1PCS ELECTRONIC PARTS LIST M-DAC 21 M-DAC Electronic Bom-P2/5 No.LEVELP/NPARTNAMEDESCRIPTIONQTYUNITLOCATION 472088-1018420001RMain board PCBA Main board PCBA(SMD components assembled) 1PCS 483002-0000011050RResistor0R 0603 1% 50V2PCSR34

43、6.R353. 493002-0000032010RResistorOR 1/8W 1%8PCSR14.R24.R46.R56.R79.R88.R110.R120 503002-0000033050RResistor1206 0R 1/8W 5%2PCSR287.R290 513002-1000011010RResistor10K 1% 0603 50V29PCS R309.R313.R314.R316.R320.R322.R323 .R329.R330.R332.R338.R340.R344.R36 4.R369.R379.R386 523002-1000032010RResistor10

44、1/8W 1% 08054PCSR20.R51.R84.R115 533002-1001021010RResistorRES 100 OHM 1/10W 1% 060328PCS R11.R12.R21.R44.R45.R52.R76.R77.R8 5.R108.R109.R116.R308.R319.R333.R3 39.R341.R345.R348.R349.R350.R351 543002-1001032010RResistor100 1/8W 1% 08054PCSR19.R55.R83.R119 553002-1001033010RResistor100R 1% SMD 06031P

45、CSR406 563002-1002049010RResistor1K MELF 0204 1% 250V 1/4W8PCSR2.R5.R34.R37.R66.R69.R98.R101 573002-1003032010RResistor10K 1/8W 1% 08056PCSR137.R138.R288.R289.R291.R292 583002-1004021010RResistorRES 100K OHM 1/10W 1% 06039PCS R307.R310.R311.R317.R318.R326.R327 .R342.R343. 593002-1005021010RResistorR

46、ES 1M OHM 1/10W 1% 06031PCSR398 603002-1100021010RResistor110R, 1%, 0603, 1/10W1PCSR377 613002-1204032010RResistor0805 120K 1/8W 1% ROHS4PCSR25.R57.R89.R121 623002-1301032010RResistor130R 1/8W 0805 1%8PCSR26.R28.R58.R60.R90.R92.R122.R124 633002-1500021010RResistor15R, 1%, 0603, 1/10W3PCSR306.R334.R3

47、70 643002-1500032010RResistor150R 1/8W 1% 08051PCSR305 653002-1502021010RResistorRES 1.5K OHM 1/10W 1% 06031PCSR382 663002-1503032010HRResistor 15K 1% 100PPM 0805 1/8W VISHAY CRCW080515K00FKEA 2PCSR300.R303 673002-1801032010RResistor180 1/8W 1% 08058PCSR15.R16.R47.R48.R81.R82.R111.R112 683002-180307

48、1010RResistor18K 0603 1% 1/16W1PCSR380 693002-2200009010RResistor22R MELF 0204 1% 1/2W8PCSR27.R29.R59.R61.R91.R93.R123.R125. 703002-2200021010RResistor22R 0603 1/10W 1%1PCSR408 713002-2200032010RResistor22 1/8W 1% 08051PCSR304 723002-2201021010RResistor220R 0603 1/10W 1%1PCSR376 733002-2201032010RRe

49、sistor220 1/8W 1% 08053PCSR299.R302.R355 743002-2202021010RResistorRES 2.2K OHM 1/10W 1% 06036PCSR315.R321.R324.R325.R331.R387 753002-2203032010RResistor22K 1/8W 1% 080510PCS R10.R22.R42.R53.R74.R86.R106.R117. R356.R360 763002-2209049010RResistor220R MELF 0204 1% 1/2W16PCS R1.R4.R7.R8.R33.R36.R38.R40.R65.R6 8.R71.R72.R97.R100.R103.R104. 773002-2261032010RResistor226R, 1%, 0805, 1/8W1PCSR365 783002-2700061010RResistor27R, 1%, 0603, 1/10W4PCSR312.R328.R381.R383 793002-2702032010RResistor2.7K 1/8W 1% 08054PCSR130.R132.R134.R136. 803002-3092061010RResistor3.09K, 1%, 0603,