McIntosh C35 - SERVICE, Руководство пользователя

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G. SPEAKER 1 and 2
The SPEAKER 1 and 2 buttons can be used to
switch on or off either the SWITCHED 1 and 2
AUDIO OUTPUTS jacks or the main and remote
speakers when an optional SPEAKER CONTROL
RELAY (SCR 3} is used.
The SWITCHED 1 and 2 jacks on the rear panel
of the C 35 have the same program as the MAIN
OUTPUT. When one or both SPKR1 and SPKR2
indicators are lighted in the message center, the
program is connected to the corresponding
AUDIO OUTPUTS jacks.
Program to other devices can be controlled such
as rear channel delay, reverberation, etc. Example:
connect the SWITCHED 1 jack to the input of a
reverberation device, an amplifier and a set of rear
loudspeakers. Rear channel reverberation can then
be switched on or off by the SPEAKER 1 button.
H. HEADPHONES:
The HEADPHONES jack has been designed to
feed low impedance dynamic headphones. An
amplifier in the C 35 provides the necessary power
for the HEADPHONES jack.
I. EQUALIZER FREQUENCY:
Each of five EQUALIZER FREQUENCY controls
raises or lowers the amplitude of a band of
frequencies centered on the frequency marked
above the control. Both left and right channels are
affected. The center, or flat position, of the control
has a detent for easy reference. In the center or
detent position, the entire circuit for that control
is removed from the program circuit by grounding
the control electronically. The result is a
preamplifier that is a "straight wire with gain" or
one that has the ability to satisfy the musical
balance to your taste.
Use the EQUALIZER FREQUENCY controls to
modify the sound and balance of program
material.
Adjustment to
Make deep bass louder
Make all bass louder
Reinforce voices
Hum on program
Brighten violins
and trumpets
Emphasize cymbals
Equalizer Correction
Raise 30
Raise 30 and 150
Lower 150 and raise 500
Reduce 30 and 150
Raise 1500
Raise 10 K
J. BALANCE
The BALANCE and LOUDNESS controls are
concentric. The BALANCE control (large outer
knob) adjusts the volume of the channels relative
to each other.
L-left...turning the control to the left accents the
left channel by reducing the right channel output.
R-right...turning the control to the right accents
the right channel by reducing the left channel
output.
K. LOUDNESS:
The LOUDNESS control (small center knob)
provides frequency response contoured to
compensate for the behavior of the human ear at
lower listening levels. This contour is accurately
modeled after the family of "equal loudness"
curves identified by Fletcher and Munson. At the
fully counterclockwise detented FLAT position, the
loudness contour is electrically flat. As the control
is turned clockwise, both bass and treble
frequencies increase in the correct proportion.
The contour is not affected by changes of
VOLUME. After adjusting VOLUME for the desired
listening level, adjust the LOUDNESS control for
the preferred compensation.
L. VOLUME:
Volume may be adjusted by using the VOLUME
or VOLUME on the front panel or the
remote control. Control of the volume is
performed by a precision attenuator. Left and right
tracking is maintained to a fraction of a dB.
M. % VOLUME:
The VOLUME indicator in the message center is
a 2 digit LED display whose numbers represent the
percentage of volume and provides 100 point
resolution for accurate and repeatable volume
control settings. When the AC power is turned on,
the last volume setting will be displayed.
N. PANLOC:
Mclntosh developed PANLOC mounting brings
professional installation technique to home stereo
systems. When the front panel PANLOC buttons
are turned approximately one quarter turn
clockwise, the unit is locked into the cabinet.
Turning the PANLOC buttons counterclockwise
unlocks the C 35, allowing it to be removed.
10 FRONT PANEL CONTROLS