McIntosh C-39 Owners manual
C39
AUDIO/VIDEO
CONTROL
CENTER
C39
AUDIO/VIDEO
CONTROL
CENTER
IMPORTANT
SAFETY
INSTRUCTIONS
THESE
INSTRUCTIONS
ARE TO PROTECT
YOU AND THE
MclNTOSH
INSTRUMENT.
BE SURE TO
FAMILIARIZE
YOURSELF
WITH THEM
1. Read all instructions - Read the safety and operating instructions before operating the instrument.
2. Retain Instructions - Retain the safety and operating instructions for future reference.
3. Heed warnings - Adhere to warnings and operating instructions.
4. Follow Instructions - Follow all operating and use instructions.
WARNING: TO
STRUMENT
5. Power Sources - Connect the power supply only to the type described in the operating instructions
or as marked on the unit.
6. Power-Cord Protection - Route power-supply cords so that they are not likely to be walked on or
pinched by items placed upon or against them, paying particular attention to cords at plugs,
convenience receptacles, and the point where they exit from the instrument.
7. Ventilation - Locate the instrument for proper ventilation. For example, the instrument should not
be placed on a bed, sofa, rug, or similar surface that may block ventilation openings; or, placed
in a built-in installation, such as a bookcase or cabinet, that may impede the flow of air through
the ventilation openings.
8. Heat - Locate the instrument away from heat sources such as radiators, heat registers, stoves, or
other appliance (including amplifiers) that produce heat.
9. Wall or Cabinet Mounting - Mount the instrument in a wall or cabinet only as described in the owner's
manual.
10. Water and Moisture - Do not use the instrument near water - for example, near a bathtub, washbowl,
kitchen sink, laundry tub, in a wet basement, or near a swimming pool, etc.
11. Cleaning - Clean the instrument by dusting with a dry cloth. Clean the panel with a cloth moistened
with a window cleaner.
12. Object and Liquid Entry - Do not permit objects to fall and liquids to spill into the instrument through
enclosure openings.
13. Nonuse Periods - Unplug the power cord from the AC power outlet when left unused for a long period
of time.
14. Damage Requiring Service - Service must be performed by qualified service personnel when:
A. The power supply cord or the plug has been damaged; or
B. Objects have fallen, or liquid has been spilled into the instrument; or
C. The instrument has been exposed to rain; or
D. The instrument does not appear to operate normally or exhibits a marked change in performance;
or
E. The instrument has been dropped, or the enclosure damaged.
15. Servicing - Do not attempt to service beyond that described in the operating instructions. All other
service should be referred to qualified service personnel.
16. Grounding or Polarization - Do not defeat the inherent design features of the polarized plug. Nonpolarized line cord adaptors will defeat the safety provided by the polarized AC plug.
17.
CAUTION: TO PREVENT ELECTRICAL SHOCK DO NOT USE THIS (POLARIZED) PLUG
WITH AN EXTENSION CORD, RECEPTACLE OR OTHER OUTLET UNLESS THE BLADES CAN
BE FULLY INSERTED TO PREVENT BLADE EXPOSURE.
ATTENTION: POUR PREVENIR
FICHE POLARISEE AVEC UN PROLONGATEUR, UNE PRISE DE COURANT OU UNE AUTRE
SORTIE DE COURANT, SAUF SI LES LAMES PEUVENT ETRE INSEREES A FOND SANS EN
LAISSER AUCUNE PARTIE A DECOUVERT.
The lightning flash with arrowhead, within an equilateral triangle, is intended to alert the
user to the presence of uninsulated "dangerous voltage" within the product's enclosure
that may be of sufficient magnitude to constitute a risk of electric shock to persons.
REDUCE
TO RAIN OR MOISTURE.
RISK
OF
FIRE
OR
ELECTRICAL SHOCK,
LES
CHOCS ELECTRIQUES
DO
PAS
NOT
EXPOSE
THIS
UTILISER CETTE
IN-
Copyright 1993 © by
Mcintosh Laboratory Inc.
CAUTION: TO PREVENT THE RISK OF ELECTRIC SHOCK, DO NOT
REMOVE COVER (OR BACK). NO USER-SERVICEABLE PARTS INSIDE.
REFER SERVICING TO QUALIFIED PERSONNEL.
The exclamation point within an equilateral triangle is intended to alert the user to the
presence of important operating and maintenance (servicing) instructions in the literature
accompanying the appliance.
WARNING: THIS UNIT IS CAPABLE OF PRODUCING HIGH SOUND
PRESSURE LEVELS. CONTINUED EXPOSURE TO HIGH SOUND
PRESSURE LEVELS CAN CAUSE PERMANENT HEARING IMPAIRMENT
OR LOSS. USER CAUTION IS ADVISED AND EAR PROTECTION IS
RECOMMENDED WHEN PLAYING AT HIGH VOLUMES.
2
Your decision to own this piece of Mcintosh Stereo Equipment ranks you at the very top
among discriminating music listeners. You now have "The Best". The Mcintosh dedication
to "Quality", is assurance that you will receive thousands of hours of musical enjoyment from
this unit.
Please take a short time to read the information in this manual. We want you to be as familiar
as possible with all the features and functions of your new piece of Mcintosh. This will ensure that you receive all the performance benefits this instrument can offer you, and that
it will become a highly valued part of your home music system.
The serial number, purchase date, and Mcintosh Laboratory Service Contract number are
important to you for possible insurance claim or future service. Record this information here.
THANK
YOU
Serial Number
Purchase Date
Service Contract Number
Upon application, Mcintosh Laboratory provides a Service Contract to the original purchaser.
Your Mcintosh Authorized Service Agency can expedite repairs when you provide them with
the Service Contract.
SERVICE CONTRACT 4
INTRODUCTION 5, 6
HOW TO INSTALL THE C39 6
HOME THEATER AUDIO CHANNEL CONFIGURATION WITH
DOLBY PRO LOGICTM AND HOME THX® AUDIO 7
FRONT PANEL CONTROLS, SWITCHES AND PUSHBUTTONS 8, 9, 10, 11, 12, 13
C39 HAND HELD REMOTE CONTROLLER 13, 14, 15
THE REAR PANEL AND HOW TO MAKE CONNECTIONS 15, 16, 17, 18, 19, 20, 21
HOW TO SET UP YOUR MclNTOSH HOME THEATER 21, 22
HOME THEATER LAYOUT 23
HOME THEATER HOOKUP 24
MclNTOSH HOME THEATER SURROUND SOUND
VOLUME LEVEL CALIBRATION 25, 26, 27, 28
SPECIFICATIONS 29, 30
CUSTOM INSTALLATION DRAWING 31
FOLD-OUT DRAWINGS OF FRONT AND BACK PANELS OF C39 32
TABLE OF
CONTENTS
3
MclNTOSH
THREE YEAR
SERVICE
CONTRACT
TAKE ADVANTAGE OF 3 YEARS OF CONTRACT SERVICE. . .
FILL IN THE APPLICATION NOW.
Your C39 Audio/Video Control Center will give you many years of satisfactory performance.
If you have any questions, please contact,
Mcintosh Laboratory Inc.
2 Chambers Street
Binghamton, New York 13903-2699
Phone: 607-723-3512
An application for A THREE YEAR SERVICE CONTRACT is included with this manual.
The terms of the contract are:
1. If the instrument covered by this contract becomes defective, Mcintosh will provide all parts,
materials, and labor needed to return the measured performance of the instrument to the
original performance limits free of any charge. The service contract does not cover any
shipping costs to and from the authorized service agency or the factory.
2. Any Mcintosh authorized service agency will repair all Mcintosh instruments at normal
service rates. To receive the free service under the terms of the service contract, the service contract certificate must accompany the instrument when taken to the service agency.
3. Always have service done by a Mcintosh authorized service agency. If the instrument is
modified or damaged as a result of unauthorized repair the service contract will be cancelled. Damage by improper use or mishandling is not covered by the service contract.
4. The service contract is issued to you as the original purchaser. To protect you from
misrepresentation this contract cannot be transferred to a second owner.
5. Units in operation outside the United States and Canada are not covered by the Mcintosh
Factory Service Contract, irrespective of the place of purchase. Nor are units acquired
outside the USA and Canada, the purchasers of which should consult with their dealer
to ascertain what, if any, service contract or warranty may be available locally.
4
Mcintosh Laboratory has earned a world wide reputation for the technical superiority of
its contributions to high quality sound reproduction. The advanced level of Mcintosh product
innovations has integrity proven by time. The legendary reliability of Mcintosh products is a
matter of record since 1949. The "Classic Mcintosh" design is acknowledged as the most
outstanding in the audio industry.
Mcintosh products are designed to be maximum "User Friendly". Anyone can enjoy using
them. Ease of maintenance is another Mcintosh design philosophy that contributes to the
long useful operating life of all Mcintosh products.
The C39, Audio/Video Control Center is a full featured remote control center for a com-
plete Mcintosh Home Theater System. It provides six audio channels with the added features
of video switching.
The C39 includes all the required Dolby Pro Logic™ decoding circuits to reproduce Dolby
Surround™ encoded movie soundtracks.
You also can enjoy the enhanced movie sound track reproduction possible from Home
THX® Audio processing circuits by having your Mcintosh dealer install the optional Mcintosh
THX-M Module in your C39. The Home THX©; Audio System is a licensing program of Lucasfilm
Ltd., which defines new technologies and quality standards for accuracy in home theaters.
The C39 includes a built-in noise generator and the controls necessary for accurate volume
level calibration of all six channels when setting up a home theater.
The C39 has the added feature of the Mcintosh designed "HALL" signal processing circuits. The "HALL" feature allows you to enhance the realism of two channel program sources
such as a compact disc. The Left and Right signals are reproduced through the Left and Right
Front loudspeakers. The same signals are combined and fed to the center channel loudspeaker
as mono center fill. The combined left and right are also fed to a digital processor with variable
time delay for the surround loudspeakers. If a subwoofer is used in the system, it will also
operate in the "HALL" mode.
The C39 includes a 25 pin connector on the rear panel to accommodate a single subminiature "D" computer type cable which fits a similar connector on a Mcintosh MC7106
six channel power amplifier. This cable carries all six audio signals and AC power control
to the MC7106 for a complete Mcintosh Home Theater System.
The C39 has built-in capability for remotely controlling two separate listening areas. The
LISTEN signals are defined as Area "A" which is usually the main area where all the equipment is located. The RECORD signals are available at a pair of outputs marked "B", and can
be used for a remote area with its own dedicated power amplifier and pair of speakers. The
desired program can be selected in Area "B" with the HR39 Hand Held Remote Controller
transmitting to a wall mounted IR sensor, or from a WK-1 keypad.
Data ports are provided for twelve audio and video remote controlled accessories. This
feature allows you to control a compatible unit by transmitting with its hand held remote controller directly to a C39 sensor. Another data port connects to the optional Mcintosh HC-1
Home Controller to allow control of accessories or appliances.
The optional Model RCT-1, Remote Control Translator is also available to interconnect with
the C39. The RCT-1 is a learning device which will allow the C39 to remotely control other
brands of products.
The convenience of C39 remote control operation is enhanced by its capability to directly
interface with the Mcintosh CR10 Remote Control System. The CR10 can add an additional
four remote areas of control.
The C39 includes twelve pairs of high level audio inputs. Seven inputs are for all the tradi-
INTRODUCTION
5
INTRODUCTION
tional audio program sources. A pair of low level inputs is included for a moving magnet phono
cartridge. Six of the audio inputs are for the audio portion of an audio/video signal. Six matching standard and S Video inputs are also included. The C39 will simultaneously switch the
six video and corresponding audio signals.
The C39 uses digital Logic integrated circuits to drive Electromagnetic Switches for all input, output and operating functions. This is the most reliable and distortion free switching
available.
Separate Record and Listen circuits allow recording from one source while listening to
another with audio or audio/video signals. A continuously variable Active Loudness control
allows loudness compensation to be selected for any setting of the volume control. The
Loudness control circuit elements are removed from the circuit path when the control is in
the flat or fully counterclockwise position.
Bass and Treble tone controls provide 12dB of boost or cut. At the center "Flat Response"
or detent position of the tone controls, all tone control circuit elements are removed from the
signal path. Other features include a precision digital driven six channel volume control, front
panel digital volume level indicator and Balanced outputs for the Left and Right output signals.
Front panel Camcorder inputs and a headphone output are also provided. These connections are hidden behind a motor driven door which is opened and closed by a convenient
front panel Access pushbutton. The Mcintosh C39 "Classic Mcintosh" all glass front panel
has all control, switch and pushbutton nomenclature illuminated.
The Mcintosh Home THX Audio licensed C39 Audio/Video Control Center, MC7106 six chan-
nel power amplifier and a set of Mcintosh HT Series Home Theater loudspeakers will make
a perfect "Mcintosh Quality" Home Theater system. Your Mcintosh dealer can assist you
in setting up all the various components of your Mcintosh Home Theater to ensure you will
receive the best possible performance.
HOW TO
INSTALL
THE C39
DOLBY SURROUND, PRO LOGIC and the Double-D Symbol are trademarks of Dolby Licensing Laboratory.
Home THX®Audio is a registered trademark of Lucasfilm Ltd.
The C39 can be placed upright on a table or shelf, standing on its own plastic feet. It can
also be installed in an optional Mcintosh L74 equipment cabinet. Follow the mounting instructions enclosed with the L74 cabinet.
The C39 can be custom installed in a piece of furniture or cabinet of your choice. The
required panel cutout and unit dimensions are shown on Page 31 of this manual.
Always provide adequate ventilation for your C39, even though it develops very little heat.
Cool operation insures the longest possible operating life for any electronic instrument. Do
not install your C39 directly above a heat generating component such as a high powered
amplifier. In a system stack, the power amplifier should always be at the top. If all the components are installed in a single cabinet, a quiet running ventilation fan can be a definite asset
in maintaining all the system components at their coolest possible operating temperatures.
A custom cabinet installation should provide the following recommended minimum spacing dimensions for cool operation. Allow at least 1 1/2 inches (3.8cm) above the unit so airflow
is not obstructed. Allow 17 1/2 inches (44.5cm) depth behind the mounting panel, which includes clearance for connectors. Allow 1-1/8 inches (2.9cm) in front of the mounting panel
for knob clearance.
6
All movies produced by major film companies have Dolby Stereo soundtracks. When they
reach you via home video sources, the Dolby Surround encoding remains intact. Dolby Pro
Logic relies on the same decoding technology as the professional cinema processors to
decode the movie sound tracks that are found on video. The decoding process results in four
separate sound tracks which are Left Front, Center, Right Front, and Surround. The Dolby
Pro Logic decoded surround signals are monaural, but are reproduced by a non-directional
loudspeaker on each side of the listening area to help diffuse the sound. The Dolby Surround
concept is the heart of the Home Theater audio and video experience.
Dolby Surround encoding is also used for MTS and satellite broadcasts as well as other
audio-only program sources such as compact discs. Use the C39 CINEMA 1 mode with its
Dolby Pro Logic processing to enjoy listening to these other program sources.
Home THX Audio circuits further process all the Dolby Pro Logic decoded signals including
the generation of separate spatially expanded left and right surround signals. Home THX Audio
also specifies that a subwoofer be used. A Home THX Audio system therefore requires six
discrete audio channels and six corresponding loudspeakers.
The C39 provides six audio channels to take full advantage of the exciting sound reproduc-
tion capabilities of a Dolby Surround encoded movie sound track. When the Mcintosh THX-M
module is installed in the C39 the audio enhancements possible by Home THX Audio signal
processing also will be available.
Descriptions of the functions of each channel of a Dolby Surround soundtrack as decoded
by Dolby Pro Logic and the addition of Home THX Audio processing will assist you in better
understanding the use of the various controls, switches and operating procedures of your C39.
HOME THEATER
AUDIO CHANNEL
CONFIGURATION
WITH DOLBY
PRO LOGIC™
AND HOME
THX AUDIO
DOLBY SURROUND LEFT FRONT and RIGHT FRONT
These two channels are stereo channels in the traditional sense. The left and right signals
provide ambience, depth and spaciousness for reproduction of music and sound from a Dolby
Pro Logic decoded movie soundtrack. The front channels also reproduce similar information
from a two channel stereo source such as a compact disc or audio tape.
DOLBY SURROUND CENTER FRONT
Dolby Surround movie soundtracks are encoded with a Center channel, which also includes
dialog information, to increase the realism of the home theater experience. The Dolby Pro
Logic decoded Center channel is reproduced through a loudspeaker placed in the front center
location, either above or below the viewing screen. A Center loudspeaker provides greater
intelligibility and localization of a movie dialog regardless of the seating position.
DOLBY SURROUND LEFT and RIGHT SURROUND
Dolby Surround soundtracks are encoded with a specially processed surround sound signal.
When decoded by Dolby Pro Logic processing circuits, the surround sounds can include all
types of acoustical information and sound effects that enhance your listening enjoyment. The
Dolby Pro Logic decoded surround sound channel is monaural, however, it is reproduced
through two separate loudspeakers placed on the left and right walls of the listening area.
The surround loudspeakers should radiate sound in a nondirectional manner, allowing the
listeners to hear only a diffused sound. Properly installed surround loudspeakers will provide
ambience, and should not distract from the direct sound reproduced by the front loudspeakers.
HOME THX AUDIO SURROUND CHANNELS
Home THX circuits add additional processing to all the original Dolby Pro Logic decoded
signals. The monaural surround signal is further processed into two separate spatially expanded left and right surround signals.
7
HOME THEATER
AUDIO CHANNEL
CONFIGURATION
WITH DOLBY
PRO LOGIC™
AND HOME
THX AUDIO
There are specific Home THX Audio requirements for surround sound level calibration. This
information is included in the manual section "MclNTOSH HOME THEATER SURROUND
SOUND VOLUME LEVEL CALIBRATION".
SUBWOOFER
Home THX Audio specifications require a subwoofer to be used in a home theater system.
A subwoofer loudspeaker is designed to reproduce only the lowest audio frequencies, which
are essentially non-directional. The C39 meets this requirement by combining the Left, Right
and Center channel signals and feeding them through a filter that allows only the bass frequencies of 80Hz and lower to be fed to the subwoofer outputs. The non-directional sound
characteristics of a subwoofer allow it to be placed in a wide range of room locations.
A well designed subwoofer will reproduce the low frequency music and sound effects present in today's action movie sound tracks with dramatic impact. Using a discretely placed
subwoofer also allows the optional use of somewhat smaller and less obtrusive front
loudspeakers.
Detailed information on Home Theater loudspeaker setup is covered in the manual enclos-
ed with your Mcintosh HT Series Home Theater loudspeakers.
FRONT PANEL
CONTROLS,
SWITCHES
AND
PUSHBUTTONS
The C39 can be remotely controlled. Most of the operating functions performed at the front
panel, also can be done by the C39 Hand Held Remote Controller. The following information
refers only to the front panel. Another section of this manual explains the operation of the
C39 Hand Held Remote Controller.
The back cover of this manual folds out to show drawings of the front and rear panels of
the C39. This will assist you in identifying and locating the front panel controls, switches,
pushbuttons and the rear panel connectors and switches. The letters and numbers on the
drawings refer to the information that follows.
A. BASS and TREBLE
Provides 12dB boost and cut, with neutral flat response at the center detent position. The
Bass and Treble controls affect the LEFT and RIGHT Balanced Outputs, the LEFT FRONT,
CENTER, RIGHT FRONT and SUBWOOFer Unbalanced Outputs. These are all Area "A" Outputs. The corresponding channels of the 6 CHANNEL OUTPUT connector are also affected.
The VCR1, VCR2, TAPE 1, TAPE 2 and Area "B" Outputs are not affected by the Bass and
Treble controls.
B. RECORD
Selects any of the 12 audio input program signals that will feed the TAPE 1, TAPE 2, VCR
1, VCR 2 and Area "B " Audio Outputs.
Area "B" must first be turned ON in Area "B", by a keypad or remote controller
transmitting to an Area "B" sensor, before the Area "B" outputs will operate.
The audio signals for SATellite, TV, Laser Video, VCR1, VCR2 and V-AUX will have their corresponding video signals switched simultaneously. The selected video RECORD signals will
appear at the MONitor B, VCR1 and VCR2 VIDEO Outputs. This allows the selected program
signals to be fed to an external TV monitor, as well as to one or two VCR units for recording
purposes.
8
All audio or video tape recording must be setup manually in Area "A". Prior to a
recording session, always press the REC (Record) LOCK pushbutton to disable all
remote sensors or keypads to avoid accidental recording disruption.
C. MODE (Selects the operating configuration)
MONO: All left and right channel signals are combined for Mono operation and fed to the
LEFT FRONT, RIGHT FRONT, Balanced, Unbalanced and the corresponding 6 CHANNEL connector outputs. The combined Mono signals of 80Hz and lower are also fed to the SUBWOOFER Output.
The Unbalanced CENTER Output can be activated in MONO by setting the rear panel
CENTER FILL Switch (25), to the ON position. This allows a Center channel loudspeaker to
be used during MONO operation.
STEREO: Left channel signals are fed to the LEFT FRONT Unbalanced and the LEFT Balanc-
ed Outputs. Right channel signals are fed to the RIGHT FRONT Unbalanced and the RIGHT
Balanced Outputs. The Left and Right signals at 80Hz and lower are combined and fed to
the SUBWOOFer Output.
The Unbalanced CENTER Output, which contains the combined left and right channel
signals can be activated by setting the rear panel CENTER FILL Switch (25), to the ON position. This allows a Center channel loudspeaker to be used during STEREO operation.
HALL: ENHANCES TWO CHANNEL AUDIO SIGNALS. Left channel signals are fed to the
LEFT FRONT Unbalanced and LEFT Balanced Outputs. Right channel signals are fed to the
RIGHT FRONT Unbalanced and RIGHT Balanced Outputs. The Left and Right signals of 80Hz
and lower are combined and fed to the SUBWOOFer Output. The combined Left and Right
audio signals are also fed to a Digital Processor, time delayed, and then fed to the LEFT SUR-
round and RIGHT SURround Outputs. The time delay can be adjusted by the front panel DELAY
(ms) Switch.
The Unbalanced CENTER Output can be activated in HALL mode by setting the rear panel
CENTER FILL Switch (25), to the ON position. This allows a Center channel loudspeaker to
be used in the HALL operating mode.
FRONT PANEL
CONTROLS
SWITCHES
AND
PUSHBUTTONS
CINEMA 1, TO REPRODUCE DOLBY SURROUND, PRO LOGIC DECODED MOVIE
SOUNDTRACKS:
Audio signals from a Dolby Surround encoded movie soundtrack are fed to the C39 Dolby
Pro Logic processing and decoding circuits which produce the following outputs.
Left audio signals are fed to the LEFT FRONT Unbalanced and LEFT Balanced Outputs.
Right audio signals are fed to the RIGHT FRONT Unbalanced and RIGHT Balanced Outputs.
The Dolby Pro Logic processing circuits also decode the center channel signals which include dialog, and feed them to the Unbalanced CENTER Output. The Dolby Pro Logic processed monaural surround sound signals are fed to the LEFT Surround and RIGHT Surround
outputs.
The Left, Right and Center signals of 80Hz and lower are combined by the C39 and fed
to the SUBWOOFer Output.
The Dolby Pro Logic Indicator on the C39 front panel lights when the MODE Switch is in
CINEMA 1 position.
Dolby Surround encoding is also used for MTS and satellite broadcasts as well as
other audio-only program sources such as compact discs. Use the C39 CINEMA 1 mode
with its Dolby Pro Logic processing to enjoy listening to these other program sources.
9
FRONT PANEL
CONTROLS,
SWITCHES
AND
PUSHBUTTONS
CINEMA 2, HOME THX AUDIO: TO REPRODUCE DOLBY SURROUND, PRO LOGIC
DECODED MOVIE SOUNDTRACKS WITH HOME THX AUDIO ENHANCEMENT.
The CINEMA 2 or Home THX Audio mode of operation is possible only when the
optional Mcintosh THX-M Module has been installed in the C39.
The four Dolby Pro Logic processed output signals are fed to the Home THX Audio circuits
in the THX-M module for further processing and enhancement which produce the following
six outputs.
Left audio input signals are fed to the LEFT FRONT Unbalanced and LEFT Balanced Outputs. Right audio signals are fed to the RIGHT FRONT Unbalanced and RIGHT Balanced Outputs. The processing circuits also feed center channel signals which include dialog, to the
Unbalanced CENTER Output. The Dolby Pro Logic decoded monaural surround signals are
then further processed into separate spatially expanded left and right surround signals, which
are fed to the LEFT Surround and RIGHT Surround Unbalanced outputs.
The Left Front, Center and Right Front signals of 80Hz and lower are also combined by
the C39 and fed to the SUBWOOFer Output.
With the Mcintosh THX-M Module installed in the C39, the front panel Home THX Audio
Indicator lights when the MODE Switch is in CINEMA 2 position. The Dolby Pro Logic front
panel indicator stays lit in both CINEMA 1 and CINEMA 2 mode.
All signals fed to the six unbalanced outputs also are fed to corresponding pins
on the rear panel 6 CHANNEL OUTPUT connector.
D. DISPLAY WINDOW
1. The Dolby Pro Logic™ indicator lights when the C39 is switched to CINEMA 1 or
CINEMA 2 Mode.
2. The Home THX Audio indicator lights when the C39 is in CINEMA 2 Mode, and the
optional THX-M Module is installed.
The optional Mcintosh THX-M Module must be installed in the C39 for the Home
THX Audio indicator to light.
3. The % (Percentage), VOLUME indicator always lights when the C39 is turned on and
operating. The selected volume is indicated as a percentage of maximum, with numbers
reading from 0 to 99. The indicator also shows the amount of volume level trim that is used
for each channel during the surround level calibration procedure.
E. LISTEN
Selects any of the 12 audio input program signals that will feed the six Unbalanced outputs, the two Balanced outputs and the SIX CHANNEL OUTPUT connector. These are Area
"A" signals. The audio signals for Satellite, TV, Laser Video, VCR1, VCR2 and V-AUX will have
their corresponding Video signals switched simultaneously. The selected LISTEN video signals
will appear at the MON A Video Outputs. You can select either audio only programs for listen-
ing, or audio/video programs for listening and viewing.
The VCR1, VCR2, TAPE 1 and TAPE 2 and Area "B" outputs are not affected by the LISTEN
switch.
F. VOLUME
Adjusts the volume level of all six Unbalanced outputs, the two Balanced outputs and the
6 CHANNEL OUTPUT Connector. These are Area "A" outputs.
10
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