Specifications

PUSHBUTTON SWITCHES
SUR CAL (Surround Calibrate)
The C39 has an integrated surround sound calibrate
system. Its mode of operation, MANUAL or AUTOMAT-
IC, is determined by a rear panel switch. In the MAN
mode each push of the button switches a noise
generator to a specific channel, LEFT FRONT, CENTER,
RIGHT FRONT, RIGHT SURROUND, LEFT SURROUND,
and SUBWOOFER in order. In the AUTO mode the noise
generator cycles through the channels until the button
is pushed a second time. If the MAIN VOLUME
CONTROL is changed during either mode, calibrate is
canceled. CALIBRATE operation is indicated by an LED
above the SUR CAL button.
SUR CAL OR
The SUR CAL (up) button increases the level of the
selected channel during CALIBRATE operation. The SUR
CAL (dwn) decreases the level. In the AUTO mode
the cycle is interrupted by pushing the SUR CAL or
SUR CAL button. However, 1 second after release
of the button the cycle will continue until the SUR CAL
button is pushed again or the MAIN VOLUME CONTROL
is changed.
SUR PRO (Surround Processor)
The SUR PRO push button is for switching the
surround processor in or out. When the MODE
SELECTOR SWITCH is in one of the surround sound
positions, the push button toggles the MODE between
standard STEREO and the selected surround operation.
ACCESS
The ACCESS push button operates the motor driven
door for ACCESS to the CAMCORDER INPUTS. When
the door is opened the V-AUX inputs are switched from
the rear to the front panel CAMCORDER inputs.
RECORD LOCK
This button disables commands from other areas so
recordings cannot be interrupted.
MUTE
Should you desire to silence the system briefly, touch
the MUTE button. A red indicator next to the MUTE
button will light, and the program will be silenced at the
6 MAIN outputs. Press the button again to un-mute.
The mute does not affect the tape or area B outputs.
POWER
The red button turns the C39 on . The panel will
illuminate to indicate the program source that has been
selected and special operating modes.
HEADPHONE JACK
The C39 has sufficient built-in power capability to
feed a low impedance dynamic headphone connected
to the HEADPHONE jack. The headphone jack is located
behind the motorized ACCESS door.
REAR PANEL INFORMATION
The rear panel of the C39 has 3 groups of RCA jacks
for audio, AUDIO INPUTS, RECORD PROCESSOR, and
AUDIO OUTPUTS. In addition there are two XLR
connectors for LEFT FRONT, and RIGHT FRONT
balanced outputs.
The AUDIO INPUTS are PHONO, AUX, CD1, CD2,
TUNER, TAPE 1, TAPE 2, SAT, TV, LV, VCR1, VCR2,
and V-AUX.
PHONO and AUX are combined on one position of
the selector switches. The user must decide which way
he will use the inputs. A moving magnet phono
cartridge may be plugged into the PHONO input or any
high level source into the AUX. However the insertion
of an RCA plug into the AUX jack switches the phono
preamp off. Only one input may be used at a time.
The RECORD PROCESSOR jacks are for TO and
FROM the processor.
The AUDIO OUTPUTS are TAPE 1, TAPE 2, VCR1,
VCR2, L&R FRONT, CENTER, SUBWOOFER and L&R
SURROUND.
There are a pair of AREA B outputs for its power
amplifier.
All six SURROUND SOUND audio outputs and a
power ON/OFF control signal are brought to a male 25
pin subminiature "D" connector. A mating female
connector is provided on the MC7106 six channel power
amplifier. One cable is all that's necessary for a
surround sound interconnect.
There are two groups of VIDEO INPUT and VIDEO
OUTPUT jacks. The RCA jacks are for composite video
and the mini-DINs are for SVHS.
C39 Product Preview/Page 6
MclNTOSH LABORATORY INC., 2 CHAMBERS STREET, BINGHAMTON, NEW YORK 13903