McIntosh MC 501 Service Manual
This is the 18 pages manual for McIntosh MC 501 Service Manual.
Read or download the pdf for free. If you want to contribute, please upload pdfs to audioservicemanuals.wetransfer.com.
Extracted text from McIntosh MC 501 Service Manual (Ocr-read)
Page 1
PERFORMANCE SPECIFICATIONS Power Output Minimum sine wave continuous average power output is: 500 watts into 2 ohm load 500 watts into 4 ohm load 500 watts into 8 ohm load Rated Power Band 20Hz to 20,000Hz Total Harmonic Distortion Maximum Total Harmonic Distortion at any power level from 250 milliwatts to rated power output is: 0.005% for 2, 4 or 8 ohm load Dynamic Headroom 1.8dB Frequency Response +0, -0.25dB from 20Hz to 20,000Hz +0, -3dB from 10Hz to 100,000Hz Sensitivity 2.1 Volts Unbalanced Input 4.2 Volts Balanced Input A-Weighted Signal To Noise Ratio 97dB (124dB below rated output) Unbalanced and Balanced Intermodulation Distortion Maximum Intermodulation Distortion if instantaneous peak output does not exceed twice the rated output, for any combination of frequencies from 20Hz to 20,000Hz is: 0.005% for 2, 4 or 8 ohm load Input Impedance 10,000 ohms Unbalanced Inputs 20,000 ohms Balanced Inputs Wide Band Damping Factor 100 @ 8ohms Power Requirements 100 Volts, 50/60Hz at 8.0 amps 110 Volts, 50/60Hz at 7.2 amps 120 Volts, 50/60Hz at 6.6 amps 220 Volts, 50/60Hz at 3.3 amps 230 Volts, 50/60Hz at 3.3 amps 240 Volts, 50/60Hz at 3.3 amps Note: Refer to the rear panel of the MC501 for the correct voltage. Overall Dimensions Front Panel: 17-1/2 inches (44.45cm) wide, 8-13/16 inches (22.38cm) high. Depth is 14-13/16 inches (37.62cm) including the Front Panel and Knobs Weight 91.5 pounds (41.6 kg) net, 105.5 pounds (48 kg) in shipping carton 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. 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 recom- mended by the manufacturer. NOTES
Page 2
3 MC501 TOP and REAR PANEL TOP VIEW REAR VIEW