Audiolab M-DAC Service Manual
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Audiolab M-DAC Service Manual

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Summary of Contents for Audiolab M-DAC

  • Page 1 M-DAC...
  • Page 2 VERSION HISTORY Date Update Content July 10, 2012 First Version M-DAC...

  • Page 3: Table Of Contents

    CONTENT Introduction Specification Assembly Sketch Schematic Diagram Wir ng Di gram Silk screen of Bottom 10-15 Maintenance Alignment Procedure 16-17 Assembly Parts List 18-19 Electronic Parts List 20-23 Product Version Deviation 24-25 M-DAC...

  • Page 4: Introduction

    This manual has been prepared with the greatest care, it is intended for information only and no liability shall be accepted for errors or changes to specification. For further service information, parts lists and updates, please contact our web-site at www.international audio group.com . 2012 International Audio Group Limited. All rights reserved. M-DAC...

  • Page 5: Specification

    SPECIFICATION M-DAC-Specification and Features-P1/2 M-DAC Performance Test Test condition: AC~253V, COAX: 997Hz Digital Signal,SR: 48kHz Load: 10 kohms impedance, with Filter NAL setting Z-out: 20ohms Test Items Condition Units Output Level 997Hz,Digital COAX Input Vrms 2.21 2.22 4.23 4.22 0.001 0.001...

  • Page 6: Specification

    SPECIFICATION M-DAC-Specification and Features-P2/2 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 OLED display “Bit Perfect” Digital Data source analyzer Intelligent real-time Bit Depth analysis engine Displays the “True”...

  • Page 7: Assembly Sketch

    ASSEMBLY SKETCH M-DAC-Product Exploded Drawing- 1/1 M-DAC...

  • Page 8: Assembly Sketch

    ASSEMBLY SKETCH M-DAC-Packing Exploded Drawing- 1/1 M-DAC...

  • Page 9: Schematic Diagram

    SCHEMATIC DIAGRAM M-DAC-Mainboard-P1/1 M-DAC...
  • Page 10 SCHEMATIC DIAGRAM M-DAC-Frontboard-P2/2 M-DAC...

  • Page 11: Schematic Diagram

    SCHEMATIC DIAGRAM M-DAC-PSU Board-P1/1 M-DAC...

  • Page 12: Wir Ng Di Gram I A

    WIRING DIAGRAM M-DAC-Wiring Diagram-P1/1 M-DAC...

  • Page 13: Silk Screen Of Top / Bottom

    SILK SCREEN OF BOTTOM M-DAC-Mainboard-Top-Silkscreeen-P1/1 M-DAC...
  • Page 14 SILK SCREEN OF BOTTOM M-DAC-Mainboard-SMD-Silkscreeen-P1/1 M-DAC...
  • Page 15 SILK SCREEN OF BOTTOM M-DAC-Front Board-Top-Silkscreeen-P1/1 M-DAC...
  • Page 16 SILK SCREEN OF BOTTOM M-DAC-Front Board-SMD-Silkscreeen-P1/1 M-DAC...
  • Page 17 SILK SCREEN OF BOTTOM M-DAC-PSU Board-Top-Silkscreeen-P1/1 M-DAC...

  • Page 18: Silk Screen Of Top / Bottom

    SILK SCREEN OF BOTTOM M-DAC-Front Board-SMD-Silkscreeen-P1/1 M-DAC...

  • Page 19: Maintenance Alignment Procedure

    MAINTENANCE ALIGNMENT PROCEDURE M-DAC-Ageing Test Step-P1/2 MDAC Soak Test procedure Rev 0.1 Insure that Mains input voltage is set to +/- 5% of rated input voltage. Lock to an External SPDIF source Play Music file / source. Insure Display, Knob and Buttons function correctly.

  • Page 20: Maintenance Alignment Procedure

    MAINTENANCE ALIGNMENT PROCEDURE M-DAC-Ageing Test Step-P2/2 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. Listening Test Connect to audio System (via RCA's), Lock to external SPDIF or USB Source, confirm no undue noise function OK.

  • Page 21: Assembly Parts List

    ASSEMBLY PARTS LIST M-DAC-Product Parts List-P1/1 PART NAME DESCRIPTION QTY UNIT 340-1018420000R knob black painted 243-1009410000R plastic pad φ6*φ9*6.5MM， 206-1018420002R lens 85.3*39.3*1.5mm, transparent 300-1018420001-1R front panel silkscreened, light grey(BLACK) 263-0074020052R 74*2*0.5 (thickness)mm，EVA，black 262-0500005010R dustproof pad 5*50*0.25dustproof 226-0330050331R feet pad 33*5*3 (thickness) mm，PORON，black...
  • Page 22 ASSEMBLY PARTS LIST M-DAC-Packing Parts List-P1/1 PART NAME DESCRIPTION QTY UNIT 401-1018420000R Top Foam EPE white 455*330*35mm， ROHS 401-1018420001-1R Bottom Foam EPE white 455*330*90mm， ROHS AUDIOLAB MDAC K=K，inner size: 409-1018420000R Outer Carton 455*330*127MM M-DAC...

  • Page 23: Electronic Parts List

    ELECTRONIC PARTS LIST M-DAC Electronic Bom -P1/5 No. LEVEL PART NAME DESCRIPTION QTY UNIT LOCATION INPUT=AC120V 022-1000023405R Power adaptor OUTPUT=AC13.8V*2,0.5A,USA Mains Cable AUDIOLAB MDAC ，black 180*3 032-1018420000R Remote 036-1307015000R Battery 1.5V SIZE AAA 24pin PH=1MM L=280MM C type 0.1mm 055-4324260066R...
  • Page 24 ELECTRONIC PARTS LIST M-DAC Electronic Bom -P2/5 No. LEVEL PART NAME DESCRIPTION UNIT LOCATION Main board PCBA(SMD components 088-1018420001R Main board PCBA assembled) 002-0000011050R Resistor 0R 0603 1% 50V R346.R353. 002-0000032010R Resistor OR 1/8W 1% R14.R24.R46.R56.R79.R88.R110.R120 002-0000033050R Resistor 1206 0R 1/8W 5% R287.R290...
  • Page 25 ELECTRONIC PARTS LIST M-DAC Electronic Bom -P3/5 No. LEVEL PART NAME DESCRIPTION UNIT LOCATION 007-1001052060QR Capacitor 100PF50V 5% NPO 0805 C297.C298.C532.C533 007-1002051063R Capacitor 1nF 0603 50v 5% COG C306.C307.C511 C284--- 007-1004052060R Capacitor 100nF 50V 5% 0805 C296,C390,C391,C394,C395,C396,C454 ,C455,C456,C457 C311.C312.C313.C314.C315.C316.C317 007-1005061022R...
  • Page 26 ELECTRONIC PARTS LIST M-DAC Electronic Bom -P4/5 No. LEVEL PART NAME DESCRIPTION UNIT LOCATION 026-0000003000R Light Sensor AT405-ALS-T2 PH=5MM GOODTAKE VG-2864ASWDT09 128x64Dot 2.7 WISE 030-7324000000R OLED CHIP 039-3000000000R Tact Switch TC-17XA 7.8*7.8*5 SW1.SW2.SW3.SW4 044-6570000000R Connector 6PIN sh-56-01 PH=2.54MM 13.2*18MM 044-6590000000R IR PAD 11*10*9.6 RCEB-8...

  • Page 27: Product Version Deviation

    PRODUCT VERSION DEVIATION M-DAC-Color Deviation-P1/1 PART NAME DESCRIPTION QTY UNIT 340-1018420000R black painted knob 340-1018420002R silver painted 300-1018410000-2R silkscreened, light grey、silver、 front panel silkscreened, light grey、black 、 300-1018420001-1R 309-1018410000-2R silver painted main chassis 309-1018420001-1R black anodized 534-3002100606R M3*10NI screw 534-3002100906R...
  • Page 28 PRODUCT VERSION DEVIATION M-DAC-Country Deviation-P1/1 UNIT CODE COLOR COUNTRY PART NAME DESCRIPTION AH-001841-01A silver EI TYPE INPUT=AC220V 022-1000013405R Power adaptor AH-001842-01A black OUTPUT=AC14.2V*2@0.5A,CH AH-001841-02A silver EI TYPE INPUT=AC110-120V 022-1001023405R Power adaptor AH-001842-02A black OUTPUT=AC13.8V*2@0.5A,USA AH-001841-03A silver EI TYPE INPUT=AC230V 022-1000033405R...

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