McIntosh MC-602 Service manual
POWER AMPLIFIER
CONTENTS
Performance Specifications........................................ 2
Notes ......................................................................... 2
Rear Panel.................................................................. 3
Section Location ........................................................ 4
Block Diagram ...................................................... 5 - 6
Interconnection Diagram ...................................... 7 - 8
Heatsink Schematic and PCB.............................. 9 - 10
Driver Schematic and PCB................................ 11 - 13
Input Schematic and PCB ......................................... 1 4
SERVICE MANUAL
Capacitor Schematic and PCB ................................. 15
Meter Schematic and PCB ................................. 17 - 19
Indicator Schematic and PCB................................... 20
PG Light Schematic and PCB ............................ 21 - 22
Meter Lamps Schematic and PCB ..................... 21 - 22
Standby Light Schematic and PCB .................... 21 - 22
Parts List............................................................ 23 - 24
Exploded View and Parts List............................. 25 - 28
Repacking Instructions ............................................. 29
PERFORMANCE SPECIFICATIONS
POWER OUTPUT STEREO
600 watts into 2, 4 or 8 ohm loads is the minimum sine
wave continuous average power output per channel with
both channels operating.
OUTPUT LOAD IMPEDANCE
2, 4 or 8 ohms
RA TED POWER BAND
20Hz to 20,000Hz
DYNAMIC HEADROOM
2.1dB
FREQUENCY RESPONSE
+0, -0.25dB from 20Hz to 20,000Hz
+0, -3dB from 10Hz to 100,000Hz
TOTAL HARMONIC DISTORTION
0.005% maximum at any power level from 250 milliwatts
to rated power per channel from 20Hz to 20,000Hz, all
channels operating.
INTERMODULA TION DISTOR TION
0.005% maximum if instantaneous peak output per channel does not exceed twice the rated output with all channels operating for any combination of frequencies from
20Hz to 20,000Hz.
SENSITIVITY
2.45 Volts Unbalanced Input
4.9 Volts Balanced Input
INPUT IMPEDANCE
10,000 ohms Unbalanced and Balanced
WIDE BAND DAMPING FACTOR
100 @ 8 ohms
POWER REQUIREMENTS
100 Volts, 50/60Hz at 18 amps
110 Volts, 50/60Hz at 16.5 amps
120 Volts, 50/60Hz at 15 amps
220 Volts, 50/60Hz at 8.2 amps
230 Volts, 50/60Hz at 7.8 amps
240 Volts, 50/60Hz at 7.5 amps
NOTE: Refer to the rear panel of the MC602 for the correct voltage.
DIMENSIONS
Front Panel: 17-3/4 inches (46cm) wide, 11 inches (28cm)
high. Depth behind front mounting panel is 19-5/8 inches
(49.83cm). Clearance required in front of front panel is
1-3/4 inches (4.5cm).
WEIGHT
155lbs. (70.3kg) Net
180lbs. (81.6kg) Shipped
SIGNAL TO NOISE RATIO (A WEIGHTED)
93dB Unbalanced (120dB below rated output)
97dB Balanced (124dB below rated output)
NOTES
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 recommended by the manufacturer.
2
REAR PANEL
MC602
3
SECTION LOCATIONS
4
BLOCK DIAGRAM
MC602
5
6
INTERCONNECT
7
8
Loading...