McIntosh MCD-1000 Service manual

CD TRANSPORT

CONTENTS

Performance Specifications ........................................ 2

Notes ......................................................................... 2

Rear View and Section Location ................................. 3

Block Diagram ........................................................... 4

Interconnection Diagram ........................................... 5

Main Schematic and PCB .................................... 7 - 10

SERVICE MANUAL

Display Schematic and PCB ............................... 11 - 13

L-Keyboard Schematic and PCB ............................... 14

R-Keyboard Schematic and PCB ............................... 15

Parts List ............................................................ 17 - 18

Exploded View and Parts Lists ........................... 19 - 20

Repacking Instructions ............................................. 21

PERFORMANCE SPECIFICATIONS

Digital Audio Format

IEC958, S/PDIF

Digital Outputs

Optical: -15!
Coaxial: 0.5V p-p @ 75ohms
XRL: 5V p-p @ 110ohms (AES/EBU)

Transport

Pickup: Optical 3-beam laser
Objective Lens Drive System: 2-Dimensional parallel
Laser Type: GaAIAs semiconductor
Laser Beam Wavelength: 780nm

Digital Signal Format

Sampling Frequency: 44.1kHz
Quantization Bit: 16-bit linear/channel
Modulation Code: Eight to Fourteen Modulation
Error Correction: Cross Interleave Reed Solomon

""

" -20dBm

""

Power Requirements

100 Volts, 50/60Hz at 20 watts
110 Volts, 50/60Hz at 20 watts
120 Volts, 50/60Hz at 20 watts
220 Volts, 50/60Hz at 20 watts
230 Volts, 50/60Hz at 20 watts
240 Volts, 50/60Hz at 20 watts

Note: Refer to the rear panel of the MCD1000 for the

correct voltage.

Dimensions

Front Panel: 17-1/2 inches (44.5cm) wide, 6 inches
(15.24cm) high (including feet). Depth is 16-1/8
inches (40.96cm) including the Front Panel and
knobs.

Weight

27.5 pounds (12.47g) net, 41.5 pounds (18.83kg) in
shipping carton

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. 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).

NOTES

4. On PC board drawings, Square pad indicates:
a. Polarized Capacitors - Positive
b. Diodes - Cathode
c. Others - Pin 1

5. WARNING

Parts marked with the symbol have critical
characteristics. Use only replacement parts recom­mended by the manufacturer.

MusicBankTM is a registered trademark of the Nakamichi Corporation

2

REAR VIEW

MCD1000

SECTION LOCATION

TOP VIEW WITH COVER REMOVED

3

BLOCK DIAGRAM

4

MCD1000

1

INTERCONNECT

5