McIntosh MC 3500 Service Information
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Page 1
SERVICE INFORMATTON
STARTlNG WITH SERIAL NO. IONOT
McINTOSH LABORATORY INC. 2 CHAMBERS STREET BINGHAMTON, NEW YORK
0098 3W
Page 2
ELECTRICAL SPECIFICATIONS
POWER OUTPUT
FREQUENCY RESPONSE
HARMONIC DISTORTION
INTERMODULATION DISTORTION
NOISE AND HUM LEVEL
INPUT LEVEL
OUTPUT IMPEDANCE
OUTPUT VOLTAGES
AC POWER INPUT
350 watts continuous
ZOHZ to ZOkHZ +0, -O.5dB
at 350 watts output.
le to 70kHz +0, -3dB at 1
watt output.
Less than 0.15% at rated output
or less, 20Hz to ZOkHZ.
Less than 0.15%
-95dB.
1.1 volt.
l, A, 8, 16, 50, and 64 ohms.
17-3, 35-8, 53, 75, 132, 150 volts.
117/125 volts, 50/6OHZ, too-900 watts.
SCHEMATK NOTES
1. Unless otherwise specified, resistance values are in ohms, 1/2
watts, and 10% tolerance.
Capacitance values smaller than I are
in microfarads (HF); values greater than 1 are in picofarads
(pF). Inductors, unless otherwise specified, are in microhenries
(pH).
2. The terminal numbering of rotary switches and printed circuit board
wires is for reference only.
3. All voltages are measured under the following conditions:
A. Use of an ll megohm input impedance VTVM voltmeter.
B. All voltages :lO% with respect to chassis ground.
C. No signal at input terminals.
D. AC input at 117 volts, 50/60 cycles.
E. Front panel controls at:
gain
meter range
power
output range
fully counterclockwise
off
on
fully counterclockwise
L. In units with serial numbers below lONlB, Ll thru L8 are not used.