McIntosh-MCD-205-Service-Manual(1) 电路图 维修手册.pdf

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

2、ONTENTS COMPACT DISC CHANGER RadioFans.CN 收音机爱 好者资料库 PERFORMANCE SPECIFICATIONS 2 1. The heavy notes on the schematic denote the primary signal path. 2. Unless otherwise noted, all voltages indicated on the schematics are measured under the following conditions: a. AC input at 120 volts, 50/60Hz. b.

3、 All voltages are +/-10% with respect to ground. A high 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

4、. Polarized Capacitors - Positive b. Diodes - Cathode c. Others - Pin 1 5.WARNING Parts marked with the symbol have critical characteristics. Use only replacement parts recom- mended by the manufacturer. MusicBankTM is a registered trademark of the Nakamichi Corporation NOTES Frequency Response +0,

5、-0.5dB from 5Hz to 20,000Hz Signal To Noise Ratio 108dB (IHF A-weighted) Dynamic Range 100dB Harmonic Distortion 0.002% Channel Separation 105dB Maximum Output Level 2.0Vrms Balanced 2.0Vrms Unbalanced Output Impedance 600 ohms Balanced 600 ohms Unbalanced Sampling Frequency 44,100Hz D/A Converter 2

6、4-bit dual converters with 8 times over sampling digital filter Error Correction CIRC Quantization 16-bit linear Digital Output Optical: -15dBm to 21dBm Coaxial: 0.5v p-p/75 ohm Transport Signal Readout Type Semiconductor Optical Laser Disc Rotational Velocity 200 to 500rpm (constant linear velocity

7、) Wow and Flutter Below current measurement limits Power Requirements 100 Volts, 50/60Hz at 25 watts 110 Volts, 50/60Hz at 25 watts 120 Volts, 50/60Hz at 25 watts 220 Volts, 50/60Hz at 25 watts 230 Volts, 50/60Hz at 25 watts 240 Volts, 50/60Hz at 25 watts NoteRefer to the rear panel of the MCD205 fo

8、r the correct voltage. Dimensions Front Panel: 17-1/2 inches (44.5cm) wide, 5-3/8 inches (13.7cm) high. Depth behind front mounting panel is 15 inches (38.1cm) including clearance for connectors. Panel clearance required in front of mounting panel is 3/4 inch (1.9cm). NoteWhen a CD Disc is inserted

9、or ejected, the panel clearance required in front of mounting panel is 3-3/4 inches (9.5cm). Weight 21 pounds (9.5kg) net, 35 pounds (15.9kg) in shipping carton RadioFans.CN 收音机爱 好者资料库 REAR VIEW 3 MCD205 SECTION LOCATION TOP VIEW WITH COVER REMOVED RadioFans.CN 收音机爱 好者资料库 BLOCK DIAGRAM 4 INTERCONNEC

10、T1 MCD205 5 NOTES 6 78 MCD205 2AUDIO/POWER 049730 SH 1 OF 2 98 1011 2AUDIO/POWER 049730 SH 2 OF 2 121 1920 EXPLODED VIEW and PARTS LIST 1016468GLASS 2148073SWITCH DPDT ROCKER 3017531PUSHBUTTON ASSY RED 4017517PUSHBUTTON ASSY BLK 5078033O-RING 6017879BEZEL GLASS 7094016TAPE FOAM 1/4 X 1/8 8098113CORD

11、 DIAL .027 BLACK BRAID SILK 9018588EXTRUSION BOTTOM 10100147SCREW MACHINE 6-32 X 3/16 PHIL 11018585EXTRUSION TOP 12017798GUIDES PRINTED CIRCUIT 13094360TAPE FOAM 1/2 X 1/2 14005090BRACKET EXTRUSION 15018611ENDCAP 5” 16101042SCREW TS 4-40 X 1/2 SLOT FILLISTER 17092419FILTER DISPLAY 18017885PLEXIGLAS

12、DISPLAY RIGHT 19017892PLEXIGLAS DISPLAY LEFT 20017886PLEXIGLAS LOGO 21094017TAPE FOAM 1/4 X 1/4 22049731ASSY PCB DISPLAY 23058153LAMP INCANDESCENT 24005224SUBPANEL 25101196SCREW TAP SEMS 6-32 X 1/4 PH PN 26101054SCREW TAPTITE 6-32 X 1/4 PH PN 27005222ZEE BRACKET RIGHT 28005223ZEE BRACKET LEFT 291020

13、03NUT MACHINE 6-32 W/LOCK 303201105 DISC CD CHANGER 31310330METRIC SCREWS MCD205 CHANGER 32100300SCREW MACH SEMS 6-32 X 1 PH PN 33005228BRACKET MOUNTING RIGHT 34005229BRACKET MOUNTING LEFT 35049730ASSY PCB AUDIO-POWER 36005227REAR PANEL 37117755RECEPTACLE INPUT & LINE FILTER 38102001NUT KEP 4-40 CAD

14、MIUM PLATE 39102020NUT 6-32 SELF-LOCK 40100271SCREW SEMS 6-32 X 1/4 PH PN 41104005WASHER FLAT STEEL 6 X 3/8 X .032 42101197SCREW HI/LO 4-24 X 3/8 PH RD BLK 43112015STANDOFF 44104142WASHER LOCK 2.5mm INT STAR ZINC 45005226CHASSIS 46159334TRANSFORMER R-CORE POWER 47117800MTA CONNECTOR 8 PIN .156 48019

15、058SPRING 49112083STANDOFF 6-32 X 1.250 50100180SCREW 6-32 X 1/8 PH PN 51017218FOOT PLASTIC BLACK 52104083WASHER #10 PLATED 53100159SCREW MACH 10-32 X 3/4 PH PN BLK 54005102COVER TOP 55101078SCREW TAP 8-32 X 5/16 PH PN BLK Part No. Description Ref No. 21 REPACKING INSTRUCTION MCD205 SERVICE MANUAL T

16、he continuous improvement of its products is the policy of McIntosh Laboratory Incorporated, who reserve the right to improve design without notice. Because of the constant upgrading of McIntosh products circuitry and components, the Company cannot insure, and does not warrant, the accuracy 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 040834 COMPACT DISC CHANGER