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MUSIC SERVER
CONTENTS
Performance Specifications ........................................ Notes ......................................................................... Safety Information ..................................................... Rear Panel .................................................................. Section Location ........................................................ Block Diagram ........................................................... 2 2 2 3 3 4 Interconnection Diagram ........................................... 5 Front Panel Schematic and PCB ......................... 7 - 10 Exploded View and Parts List ............................ 11 - 12 Parts List ................................................................... 15 Repacking List .......................................................... 17
SERVICE MANUAL
PERFORMANCE SPECIFICATIONS
Specifications are subject to change without notice. Please check the McIntosh web site for any changes to the specifications. Audio Specifications Frequency Response: Signal to Noise Ratio: Dynamic Range: Harmonic Distortion: Channel Separation: Output Level: Output Impedance: Video Specifications Signal System: Output Impedance: General Specifications Digital Output Optical: Digital Output Coaxial: Digital Signal Format: Power Requirements: Overall Dimensions:
2 20,000Hz, +/-1 dB 102dB (IHF A-Weighted) 96dB 0.01% 95dB (1,000Hz) 2.0 Vrms 200 ohms
-15dbm to -21dbm 0.4Vpp to 0.6Vpp/75 ohm 44.1kHz Sampling Frequency 100-240 Volts, 50-60Hz at 60 watts Width is 17-1/2 inches (44.45cm) Height is 5-3/8 inches (13.69cm) Depth is 15 inches (38.1cm)
NTSC, PAL (Factory Option) 75 ohm
Note: When the disc tray is Opened, the panel clearance required in front of mounting panel is 5-1/4 inches (13.3cm)
Weight:
20.7 pounds (9.4Kg) net, 37.2 pounds (16.9Kg) in shipping carton
NOTES
1. 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) . 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. 6. Use McIntosh Remote Control Model HR053 with the MS300. 7. See Advanced Users Guide for Keyboard (050202) operation.
SAFETY INFORMATION
CAUTION:
Invisible Laser Radiation when open. DO NOT stare into the beam or view directly with optical instruments. Use of controls or adjustments or performance of procedures other than those specified in the Owners Manual may result in Hazardous Radiation Exposure.
This product incorporates an embedded CLASS 3B Laser (IEC60825-1).
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MS300
REAR PANEL
SECTION LOCATIONS
TOP VIEW WITH COVER REMOVED
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NOTES
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1
Part #320192 Part #320200
INTERCONNECT
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NOTES
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MS300
11
FRONT PANEL
050177
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MS300
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FRONT PANEL
050177
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MS300
EXPLODED VIEW AND PARTS LIST
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NOTES
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MS300
PARTS LIST
2 3
320187 MAIN PCB 320189 CHASSIS/POWER SUPPLY PCB See Note 320191 DISPLAY PCB See Note 320202 SERIAL RS232 PCB See Note 320204 AUDIO EXPANSION PCB See Note 320203 SPDIF PCB See Note 320208 IR DATA PCB See Note 320190 CD ROM PCB See Note 320186 HARD DRIVE See Note 050177 FRONT PANEL PCB D1 DIODE SILICON D2 DIODE SILICON D3 DIODE SILICON DS1 LED SQUARE RED DS2 LED SQUARE RED DS3 LED SQUARE RED DS4 LED SQUARE RED DS5 LED GREEN 5MM HI-INT DS6 LED GREEN 5MM HI-INT DS7 LED GREEN 5MM HI-INT DS8 LED GREEN 5MM HI-INT J1 CONN HEADER SHROUDED 1X14 J2 CONN HEADER SHROUDED 1X14 J3 CONN HEADER 1X5 STRAIGHT J4 CONN HEADER 1X5 STRAIGHT Q1 TRANSISTOR PNP SILICON Q2 TRANSISTOR PNP Q3 TRANSISTOR PNP Q4 TRANSISTOR PNP Q7 TRANSISTOR PNP Q8 TRANSISTOR NPN R1 RES MF 2.21K 1% 1/4W R2 RES MF 221 OHM 1% 1/4W R3 RES MF 221 OHM 1% 1/4W R4 RES MF 221 OHM 1% 1/4W R5 RES MF 324 OHM 1% 1/4W R6 RES MF 10K 1% 1/4W
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R7 R8 R9 R10 R11 R12 S1 S2 S3 S4 S5 S6 S7 S8 S9 S10 S11 S12 S13 S14 S15 S16 S17
RES MF 100 OHM 1% RES MF 100 OHM 1% RES MF 100 OHM 1% RES MF 100 OHM 1% RES MF 1K 1% 1/4W RES MF 1K 1% 1/4W SWITCH PB TACT SWITCH PB TACT SWITCH PB TACT SWITCH PB TACT SWITCH PB TACT SWITCH PB TACT SWITCH PB TACT SWITCH PB TACT SWITCH PB TACT SWITCH PB TACT SWITCH PB TACT SWITCH PB TACT SWITCH PB TACT SWITCH PB TACT SWITCH PB TACT SWITCH PB TACT SWITCH PB TACT
1/4W 1/4W 1/4W 1/4W
144196 144196 144196 144196 144090 144090 150058 150059 150059 150059 150058 150058 150058 150058 150059 150058 150058 150059 150058 150058 150059 150058 150059
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070047 070047 070047 058109 058109 058109 058109 058165 058165 058165 058165 117875 117875 117874 117874 132172 132224 132224 132224 132224 132223 144298 144172 144172 144172 144338 144053 15
NOTE: Modules not available as replacement parts. If defect is suspected in these modules, contact factory for service options.
NOTES
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MS300
REPACKING INSTRUCTIONS
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MUSIC SERVER
SERVICE MANUAL
The 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 040XXX