McIntosh MC 207 Service Manual
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Extracted text from McIntosh MC 207 Service Manual (Ocr-read)
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PERFORMANCE SPECIFICATIONS 2 1. The heavy lines 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 Power Output Minimum sine wave continuous average power output per channel, all channels operating is: 200 watts into 4 ohm or 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 4 or 8 ohm loads Dynamic Headroom 1.7dB Frequency Response +0, -0.25dB from 20Hz to 20,000Hz +0, -3dB from 10Hz to 100,000Hz Sensitivity 1.0 Volt Unbalanced with a 4 ohm Loudspeaker 2.0 Volt Balanced with a 4 ohm Loudspeaker 1.4 Volt Unbalanced with a 8 ohm Loudspeaker 2.8 Volt Balanced with a 8 ohm Loudspeaker A-Weighted Signal To Noise Ratio 89dB (112dB below rated output)Intermodulation Distortion Maximum Intermodulation Distortion if instantaneous peak output per channel does not exceed twice the rated output, for any combination of frequencies from 20Hz to 20,000Hz, with all channels operating is: 0.005% for 4 or 8 ohm loads Input Impedance 20,000 ohms Balanced 10,000 ohms Unbalanced Wide Band Damping Factor Greater than 60 at 4 ohms Greater than 140 at 8 ohms Power Requirements 100 Volts, 50/60Hz at 1440 watts 110 Volts, 50/60Hz at 13.0 amps 120 Volts, 50/60Hz at 12.0 amps 220 Volts, 50/60Hz at 6.0 amps 230 Volts, 50/60Hz at 6.0 amps 240 Volts, 50/60Hz at 6.0 amps Note: Refer to the rear panel of the MC207 for the correct voltage. Dimensions Front Panel: 17-1/2 inches (44.45cm) wide, 9-7/16 inches (23.97cm) high. Depth behind front mounting panel is 18-3/4 inches (47.63cm), including clearance for connectors. Weight 83 pounds (37.6kg) net, 116 pounds (52.6kg) in shipping carton
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REAR PANEL 3 MC207
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J14 RECEPTACLE XLR FEMALE 117685 J16 JACK RCA 1X2 BLK/BLK 14MM 117848 J17 CONN 4 PIN 117215 J18 RECEPTACLE XLR FEMALE 117685 J19 JACK HEADPHONE DUAL BLACK 1/ 8,117825" J20 RECEPTACLE XLR FEMALE 117685 R1 RES MF 1K 1% 1/4W 144090 R2 RES MF 1K 1% 1/4W 144090 R3 RES MF 20K 1% 1/4W 144104 R4 RES MF 221 OHM 1% 1/4W 144172 R5 RES MF 20K 1% 1/4W 144104 R6 RES MF 221 OHM 1% 1/4W 144172 R7 RES MF 100K 1% 1/4W 144113 R8 RES MF 100K 1% 1/4W 144113 R9 RES MF 20K 1% 1/4W 144104 R10 RES MF 20K 1% 1/4W 144104 R11 RES MF 10K 1% 1/4W 144053 R12 RES MF 10K 1% 1/4W 144053 R13 RES MF 10 OHM 1% 1/4W 144157 R14 RES MF 10K 1% 1/4W 144053 R16 RES MF 100K 1% 1/4W 144113 R17 RES MF 10K 1% 1/4W 144053 R18 RES MF 100K 1% 1/4W 144113 R19 RES MF 10 OHM 1% 1/4W 144157 R20 RES MF 1K 1% 1/4W 144090 R21 RES MF 20K 1% 1/4W 144104 R22 RES MF 221 OHM 1% 1/4W 144172 R23 RES MF 1K 1% 1/4W 144090 R24 RES MF 100K 1% 1/4W 144113 R25 RES MF 20K 1% 1/4W 144104 R26 RES MF 20K 1% 1/4W 144104 R27 RES MF 221 OHM 1% 1/4W 144172 R28 RES MF 100K 1% 1/4W 144113 R29 RES MF 10K 1% 1/4W 144053 R30 RES MF 20K 1% 1/4W 144104 R31 RES MF 10K 1% 1/4W 144053 R33 RES MF 100K 1% 1/4W 144113 R34 RES MF 10K 1% 1/4W 144053 R35 RES MF 10K 1% 1/4W 144053 R37 RES MF 100K 1% 1/4W 144113 R38 RES MF 1K 1% 1/4W 144090 R39 RES MF 20K 1% 1/4W 144104 R40 RES MF 221 OHM 1% 1/4W 144172 R41 RES MF 100K 1% 1/4W 144113 R42 RES MF 20K 1% 1/4W 144104 R43 RES MF 10K 1% 1/4W 144053 R44 RES MF 10K 1% 1/4W 144053 R45 RES MF 100K 1% 1/4W 144113 R46 RES MF 100 OHM 1% 1/4W 144196 R47 RES MF 1K 1% 1/4W 144090 R48 RES MF 20K 1% 1/4W 144104 R49 RES MF 221 OHM 1% 1/4W 144172 R50 RES MF 100K 1% 1/4W 144113 R51 RES MF 20K 1% 1/4W 144104 R55 RES MF 10K 1% 1/4W 144053 R56 RES MF 10K 1% 1/4W 144053 R58 RES MF 100K 1% 1/4W 144113 R59 RES MF 1K 1% 1/4W 144090 R60 RES MF 20K 1% 1/4W 144104 R61 RES MF 221 OHM 1% 1/4W 144172 R62 RES MF 100K 1% 1/4W 144113 R63 RES MF 20K 1% 1/4W 144104 R64 RES MF 100 OHM 1% 1/4W 144196 R65 RES MF 10K 1% 1/4W 144053 R66 RES MF 10K 1% 1/4W 144053 R68 RES MF 100K 1% 1/4W 144113 S1 SWITCH SLIDE 148059 SP1 BRACKET PCB CARD MOUNTING 003611 U1 IC DUAL OPERATIONAL AMPLIFIER 133260 U2 IC DUAL OPERATIONAL AMPLIFIER 133260 U3 IC DUAL OPERATIONAL AMPLIFIER 133260 U4 IC DUAL OPERATIONAL AMPLIFIER 133260 050064 HEATSINK1 PCB C1 CAP ELECT 47UF 35V 066446 C2 CAP ELECT 47UF 35V 066446 C3 CAP MONO .1uF 50V 20% Z5U 061305 C4 CAP POLYPROP 0.15UF 10% 250VDC 064363 C7 CAP MONO 100PF 100V 10% NPO 061300 C8 CAP MONO 100PF 100V 10% NPO 061300 C9 CAP MONO .01UF 50V 20% X7R 061304 C14 CAP MONO 100PF 100V 10% NPO 061300 C16 CAP MONO .01UF 50V 20% X7R 061304 C22 CAP ELECT 220UF 25V 066507 C27 CAP MONO 100PF 100V 10% NPO 061300 C30 CAP ELECT 47UF 35V 066446 C31 CAP ELECT .47UF 50V 066244 C32 CAP MONO .1uF 50V 20% Z5U 061305 C33 CAP MONO .1uF 50V 20% Z5U 061305 PARTS LIST cont MC207 37 3A 3B