McIntosh-MCD205-cd-sm 维修电路原理图.pdf

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1、SERVICE MANUALPerformance Specifications . 2Notes . 2Rear View and Section Location . 3Block Diagram . 4Interconnection Diagram . 5Audio/Power Schematic and PCB. 7 - 12Display Schematic and PCB . 13 -16Parts List . 17 - 18Exploded View and Parts Lists . 19 - 20Repacking Instructions . 21CONTENTSCOMP

2、ACT DISCCHANGERRadioFans.CN 收音机爱 好者资料库PERFORMANCE SPECIFICATIONS21. The heavy notes on the schematic denote the primarysignal path.2. Unless otherwise noted, all voltages indicated on theschematics are measured under the following conditions:a. AC input at 120 volts, 50/60Hz.b. All voltages are +/-1

3、0% with respect to ground. Ahigh impedance (10 megaohm) voltmeter must be used.3. Unless otherwise specified:a. Resistor values are in ohms.b. Capacitor values are microfarads (uF).c. Inductor values are in microhenries (uH).4.On PC board drawings, Square pad indicates:a. Polarized Capacitors - Posi

4、tiveb. Diodes - Cathodec. Others - Pin 15.WARNINGParts marked with the symbol have criticalcharacteristics. Use only replacement parts recom-mended by the manufacturer.MusicBankTM is a registered trademark of the Nakamichi CorporationNOTESFrequency Response+0, -0.5dB from 5Hz to 20,000HzSignal To No

5、ise Ratio108dB (IHF A-weighted)Dynamic Range100dBHarmonic Distortion0.002%Channel Separation105dBMaximum Output Level2.0Vrms Balanced2.0Vrms UnbalancedOutput Impedance600 ohms Balanced600 ohms UnbalancedSampling Frequency44,100HzD/A Converter24-bit dual converters with 8 times over sampling digitalf

6、ilterError CorrectionCIRCQuantization16-bit linearDigital OutputOptical: -15dBm to 21dBmCoaxial: 0.5v p-p/75 ohmTransport Signal Readout TypeSemiconductor Optical LaserDisc Rotational Velocity200 to 500rpm (constant linear velocity)Wow and FlutterBelow current measurement limitsPower Requirements100

7、 Volts, 50/60Hz at 25 watts110 Volts, 50/60Hz at 25 watts120 Volts, 50/60Hz at 25 watts220 Volts, 50/60Hz at 25 watts230 Volts, 50/60Hz at 25 watts240 Volts, 50/60Hz at 25 wattsNoteRefer to the rear panel of the MCD205 for thecorrect voltage.DimensionsFront Panel: 17-1/2 inches (44.5cm) wide, 5-3/8i

8、nches (13.7cm) high. Depth behind frontmounting panel is 15 inches (38.1cm) includingclearance for connectors. Panel clearance requiredin front of mounting panel is 3/4 inch (1.9cm).NoteWhen a CD Disc is inserted or ejected,the panel clearance required in frontof mounting panel is 3-3/4 inches (9.5c

9、m).Weight21 pounds (9.5kg) net, 35 pounds (15.9kg) inshipping cartonRadioFans.CN 收音机爱 好者资料库REAR VIEW3MCD205SECTION LOCATIONTOP VIEW WITH COVER REMOVEDBLOCK DIAGRAM4INTERCONNECT1MCD2055NOTES678MCD2052AUDIO/POWER 049730 SH 1 OF 29810112AUDIO/POWER 049730 SH 2 OF 21211920EXPLODED VIEW and PARTS LIST101

10、6468GLASS2148073SWITCH DPDT ROCKER3017531PUSHBUTTON ASSY RED4017517PUSHBUTTON ASSY BLK5078033O-RING6017879BEZEL GLASS7094016TAPE FOAM 1/4 X 1/88098113CORD DIAL .027 BLACK BRAID SILK9018588EXTRUSION BOTTOM10100147SCREW MACHINE 6-32 X 3/16 PHIL11018585EXTRUSION TOP12017798GUIDES PRINTED CIRCUIT1309436

11、0TAPE FOAM 1/2 X 1/214005090BRACKET EXTRUSION15018611ENDCAP 5”16101042SCREW TS 4-40 X 1/2 SLOT FILLISTER17092419FILTER DISPLAY18017885PLEXIGLAS DISPLAY RIGHT19017892PLEXIGLAS DISPLAY LEFT20017886PLEXIGLAS LOGO21094017TAPE FOAM 1/4 X 1/422049731ASSY PCB DISPLAY23058153LAMP INCANDESCENT24005224SUBPANE

12、L25101196SCREW TAP SEMS 6-32 X 1/4 PH PN26101054SCREW TAPTITE 6-32 X 1/4 PH PN27005222ZEE BRACKET RIGHT28005223ZEE BRACKET LEFT29102003NUT MACHINE 6-32 W/LOCK303201105 DISC CD CHANGER31310330METRIC SCREWS MCD205 CHANGER32100300SCREW MACH SEMS 6-32 X 1 PH PN33005228BRACKET MOUNTING RIGHT34005229BRACK

13、ET MOUNTING LEFT35049730ASSY PCB AUDIO-POWER36005227REAR PANEL37117755RECEPTACLE INPUT & LINE FILTER38102001NUT KEP 4-40 CADMIUM PLATE39102020NUT 6-32 SELF-LOCK40100271SCREW SEMS 6-32 X 1/4 PH PN41104005WASHER FLAT STEEL 6 X 3/8 X .03242101197SCREW HI/LO 4-24 X 3/8 PH RD BLK43112015STANDOFF44104142W

14、ASHER LOCK 2.5mm INT STAR ZINC45005226CHASSIS46159334TRANSFORMER R-CORE POWER47117800MTA CONNECTOR 8 PIN .15648019058SPRING49112083STANDOFF 6-32 X 1.25050100180SCREW 6-32 X 1/8 PH PN51017218FOOT PLASTIC BLACK52104083WASHER #10 PLATED53100159SCREW MACH 10-32 X 3/4 PH PN BLK54005102COVER TOP55101078SC

15、REW TAP 8-32 X 5/16 PH PN BLKPartNo.DescriptionRefNo.21REPACKING INSTRUCTIONMCD205SERVICE MANUALThe continuous improvement of its products is the policy of McIntosh Laboratory Incorporated, who reserve the right to improve design withoutnotice. Because of the constant upgrading of McIntosh products circuitry and components, the Company cannot insure, and does not warrant, theaccuracy of the within schematic material, which is intended for information only.McINTOSH LABORATORY, INC., 2 CHAMBERS STREET, BINGHAMTON, NEW YORK 13903 Printed in U.S.A. Part Number 040834COMPACT DISC CHANGER