MARC-15 - Arrakis Systems
RA DIO CON S OLE P RODUCTS
MARC-15
Broadcast Console
family
Technical Manual
November 1, 2014
ARRAKIS
a d va n c e d r a d io
1.0
IN TRODUCTION
Thank you from Arrakis Systems inc.
Thank you for purchasing this product by Arrakis Systems inc. Our company has provided professional audio
equipment to the broadcast, commercial audio, and consumer audio markets for more than 30 years. Our products are sold worldwide and are well known for leading edge technology, quality, and reliability.
Telephone Support for the �Free’ DHD-Live software
DHD-Live software for the ARC console is provided at no charge and does not include the cost of telephone support.
The software is specifically designed to be easy to use for people with average PC computer and radio industry
experience. Support is limited to the product manual and the on screen help system in the software itself. Refer to
the Arrakis website at www.arrakis-systems.com for updated training materials. In a case where telephone support
is a necessity, Arrakis has per minute and per incident support available that can be paid for by valid credit card. For
comprehensive support and advanced automation features, please consider one of our automation product. Refer to
the website or contact the factory for details.
How to contact Arrakis Systems
Arrakis Systems inc. is located at
Arrakis Systems inc
6604 Powell Street
Loveland, Colorado
80538
Business Hours:
8:00am - 4:30pm mountain time
Contact:
970-461-0730
970-663-1010
[email protected]
arrakis-systems.com
Voice:
Fax:
email:
web:
Having difficulty contacting Arrakis?
Refer to the website (www.arrakis-systems.com)
for current contact information
1.1
ARRAKIS
a d va n c e d r a d io
S A FETY
Safety Instructions
1. Read All Instructions. All safety and operating
instructions must be read before operating the
product.
2. Retain All Instructions. All safety and
operating instructions must be retained for
future reference.
3. Heed All Warnings. All warnings on the
product and those listed in the operating
instructions must be adhered to.
4. Follow All Instructions. All operating and
product usage instructions must be followed.
5. Heat. This product must be situated away from
any heat sources such as radiators, heat
registers, stoves, or other products (including
power amplifiers) that produce heat.
6. Ventilation. Slots and openings in the product
are provided for ventilation. They ensure reliable
operation of the product, keeping it from
overheating. These openings must not be
blocked nor covered during operation. This
product should not be placed into a rack unless
proper ventilation is provided through
following the manufacturer’s recommended
installation procedures.
7. Water and Moisture. Do not use this product
near water—for example; near a bath tub, wash
bowl, kitchen sink or laundry tub; in a wet
basement; or near a swimming pool or the like.
8. Attachments. Do not use any attachments not
recommended by the product manufacturer
as they may cause hazards.
9. Power Sources. This product must be
operated from the type of power source
indicated on the marking label and in the
installation instructions. If you are not sure of
the type of power supplied to your facility,
consult your local power company.
10. Grounding and Polarization. This product is
equipped with a polarized AC plug with integral
safety ground pin. Do not defeat the safety
ground in any manner.
11. Power Cord Protection. Power supply cords
must be routed so that they are not likely to be
walked on nor pinched by items placed upon
or against them. Pay particular attention to the
cords at AC wall plugs and convenience
receptacles, and at the point where the cord
plugs into the product.
12. Lightning. For added protection for this
product during a lightning storm, or when it is
left unattended and unused for long periods of
time, unplug it from the AC wall outlet. This will
prevent damage to the product due to
lightning and power line surges.
13. Overloading. Do not overload AC wall outlets,
extension cords, or integral convenience outlets
as this can result in a fire or electric shock hazard.
14. Object and Liquid Entry. Never push objects
of any kind into this product through openings
as they may touch dangerous voltage points
or short-out parts that could result in a fire or
electric shock. Never spill liquid of any kind on
the product.
15. Accessories. Do not place this product on an
unstable cart, stand, tripod, bracket, or table. The
product may fall, causing serious damage to a
child or adult, and serious damage to the
product. Any mounting of the product needs
to follow manufacturer’s installation
instructions.
ARRAKIS
a d va n c e d r a d io
1.2
16. A Product and Cart Combination should be
moved with care. Quick stops, excessive force,
and uneven surfaces may cause the product and
the cart combination to overturn.
17. Servicing. Refer all servicing to qualified
servicing personnel.
18. Damage Requiring Service. Unplug this
product from the wall AC outlet and refer
servicing to qualified service personnel under
the following conditions:
a. When the AC cord or plug is damaged.
b. If liquid has been spilled or objects have
fallen into the product.
c. If the product has been exposed to rain or
water.
d. If the product does not operate normally
(following operating instructions).
e. If the product has been dropped or
damaged in any way.
f. When the product exhibits a distinct change
in performance. This indicates a need for
service.
19. Replacement Parts. When replacement parts
are required, be sure the service technician has
used replacement parts specified by the
manufacturer or that have the same
characteristics as the original parts. Unauthorized
substitutions may result in fire, electric shock, or
other hazards.
20. Safety Check. Upon completion of any repairs
to this product, ask the service technician to
perform safety checks to determine that the
product is in proper operating condition.
21. Cleaning. Do not use liquid cleaners or aerosol
cleaners. Use only a damp cloth for cleaning.
S A FETY
Hazard / Warning Label
Identification
C AU T I O N
RISK OF
ELECTRIC SHOCK
DO NOT OPEN
WARNING: SHOCK HAZARD - DO NOT OPEN
AVIS: RISQUE DE CHOC ELECTRIQUE - NE PAS OUVRIR
CAUTION : TO REDUCE THE RISK OF ELECTRIC SHOCK DO NOT
REMOVE ANY COVER OR PANEL. NO USER SERVICEABLE PARTS
INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
WARNING : TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK,
DO NOT EXPOSE THE CONSOLE TO RAIN OR MOISTURE.
The Exclamation Point symbol, within an equilateral
triangle, alerts the user to the presence of important
operating and maintenance (servicing) instructions in
product literature and instruction manuals.
The Lightning Flash With Arrowhead symbol, within an
equilateral triangle, alerts 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.
WARNING —This equipment generates, uses and can
radiate radio frequency energy. If not installed and used in
accordance with the instructions in this manual it may cause
interference to radio communications. It has been tested and
found to comply with the limits for a Class A computing device
(pursuant to Subpart J of Part 15 FCC Rules), which are designed
to provide reasonable protection against such interference when
operated in a commercial environment. Operation of this equip-ment
in a residential area is likely to cause interference, in which
case the user, at his own expense, will be required to take what-ever
measures may be required to correct the interference.
ARRAKIS
a d va n c e d r a d io
1.3
W A RRA N TY
Warranty
This console carries a manufacturer�s warranty subject to the following guidelines and limitations:
A)
Except as expressly excluded herein, Arrakis Systems inc. (“Seller”) warrants equipment of its own manufacture against faulty workmanship or the use of defective materials for a period of one (1) year from date of
shipment to Buyer. The liability of the Seller under this Warranty is limited to replacing, repairing or issuing credit (at the Seller’s discretion) for any equipment, provided that Seller is promptly notified in writing within five (5)
days upon discovery of such defects by Buyer, and Seller�s examination of such equipment shall disclose to its
satisfaction that such defects existed at the time shipment was originally made by Seller, and Buyer returns the
defective equipment to Seller’s place of business in Loveland, Colorado, packaging and transportation prepaid,
with return packaging and transport guaranteed.
B)
Equipment furnished by Seller, but manufactured by another, shall be warranted only to the extent provided by the other manufacturer.
C)
Thermal filament devices (such as lamps and fuses) are expressly excluded from this warranty.
D)
The warranty period on equipment or parts repaired or replaced under warranty shall expire upon the
expiration date of the original warranty.
E)
This Warranty is void for equipment which has been subject to abuse, improper installation, improper
operation, improper or omitted maintenance, alteration, accident, negligence (in use, storage, transportation or
handling), operation not in accordance with Seller�s operation and service instructions, or operation outside of
the environmental conditions specified by Seller.
F)
This Warranty is the only warranty made by Seller, and is in lieu of all other warranties, including merchantability and fitness for a particular purpose, whether expressed or implied, except as to title and to the
expressed specifications contained in this manual. Seller’s sole liability for any equipment failure or any breach
of this Warranty is as set forth in subparagraph A) above; Seller shall not be liable or responsible for any business loss or interruption, or other consequential damages of any nature whatsoever, resulting from any equipment failure or breach of this warranty.
ARRAKIS
a d va n c e d r a d io
1.4
S OFTW A RE
Software End User License Agreement
This product contains software licensed from Arrakis Systems inc. and possibly from other software companies. Ownership of this product constitutes acceptance of this agreement.
1- This product contains intellectual property (i.e. software programs) that are licensed for use by the end user customer (hereinafter “End user”).
2- This is not a sale of such intellectual property
3- The End user shall not copy, disassemble, or reverse compile software programs
4- The software programs are provided to the End user “as is” without warranty of any kind, either expressed or
implied, including, but not limited to, warranties of merchantability, and fitness for particular purpose. The entire risk of
the quality and performance of the software program is borne by the End user.
5- Arrakis and its suppliers shall not be held to any liability for any damages suffered or incurred by the end user
(including, but not limited to, general, special, consequential, or incidental damages including damages for loss of business profits, business interruption, loss of business information and the like), arising from or in connection with the
delivery, use or performance of the software program.
ARRAKIS
a d va n c e d r a d io
1.5
Table of Contents
Section One
Introduction
Section Two
Product Description
Section Three
Operation Instructions
Section Four
Installation Instructions
Getting Started:
Mainframe:
Power Supply:
Cabling
Gorunding
Output Module wiring:
Input Module wiring:
PC Setup for USB module:
ARC-16SW:
Basic Calibration:
Output Board Calibration:
Module Jumper setup:
Summary wiring pages:
Balanced & Unbalanced:
Ground loops
4.1 - 4.4
4.5
4.6
4.7
4.8
4.9 - 4.14
4.15 - 4.19
4.20
4.21 - 4.23
4.24
4.25
4.26
4.27 - 4.28
4.29 - 4.33
4.34 - 4.35
Section Five
DHD-Live
Section Six
Service and Maintenance
ARRAKIS
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1.6
P RODUCT DES CRIP TION
PRODUCT
DESCRIPTION
2.0
P RODUCT DES CRIP TION
Product Description
MARC-15
Modular Advanced Radio Console (MARC)
Three stereo Program output mixes (with mono mixdowns) plus Monitor, Headphone, and Cue systems
15 channel modular mainframe supports many types of input modules (all with LED illumination)
High performance mic modules with 48V phantom power (A/B inputs), (turret control logic & tally for �A’ inputs)
Balanced, stereo line level input modules (A/B inputs), (isolated relay source logic for �A’ inputs)
Powerful Phone module with hybrid control logic (mainframe supports two phone modules)
USB soundcard input module for playing and recording directly in digital from a Windows PC (one per PC)
Optional Studio Monitor module for Talk studios
Real VU meters monitor all three Output buses
Cue-talkback system with built-in amplifier and speaker
Built-in Timer with manual and automated control
All I/O is by RJ45 connectors and ten foot wiring is supplied with RJ45 at one end and unterminated at the other end
Optional 16 x 3 stereo switcher for remote input select... handles large studio jobs
The MARC-15 modular analog console comes in a single 15 channel mainframe size with a wide variety of input and option module
configurations. The console supports two phone modules for use with external hybrids. All switches are LED illuminated and ICs
are socketed (not surface mount) for reliability. Machine source control is by isolated reed relays. The meter panel hinges up
and back for access to I/O connectors and input trimpots. All I/O is by RJ45 connectors and ten foot wiring is supplied with
RJ45 at one end and unterminated at the other end (an expensive option in competing products). The MARC-15 is a very low profile, attractive, tabletop design that is flexible, easy to install, reliable, and ideal for any on air or production Radio application.
2.1
P RODUCT DES CRIP TION
The modular mainframe...
The MARC-15 is available in a single 15 channel mainframe. The mainframe is a fully enclosed metal cabinet with a rear hinging meter
panel. The power supply is an external, autosensing 110-220VAC module. The meter panel contains meters for all three buses, a digital timer, and a built in cue/talkback speaker.
The console is compact, low profile,
and a tabletop mount design
Width:
Depth:
Rear height:
Front Height:
The meter panel hinges for
access to console I/O and
trimpots
2.2
37 1/2"
20"
6 3/4"
2 1/8"
P RODUCT DES CRIP TION
Many modules to choose from...
The �Output’ module comes standard with the console. The 8, 12,
and 15 channel base models can then be configured with any combination of input modules that you choose. There can be a maximum of one �PC USB’ module per PC, two �Phone modules’, and one
�Studio monitor’ module per mainframe. Any number of mic or stereo line modules can be added until the 15 open modules in the
mainframe are full.
Input modules
Mic
module
(MARC-MIC)
Stereo
line
module
(MARC-STL)
PC USB
module
(MARC-USB)
Option
Phone
module
(MARC-PHN1
MARC-PHN2)
Studio
monitor
module
(MARC-STM)
Output module
Output / Monitor / Timer
Module
(MARC-OB)
A/B
A/B
Rec
ord
Off
line
Ext1
Reset
Ext1
Pgm
Pgm
Pgm
Pgm
Pgm
Start
Pgm
Aud
Aud
Aud
Aud
Aud
Stop
Aud
Utl
Utl
Utl
Utl
Utl
Auto
Utl
Cue
Cue
Cue
Cue
Timer
Talk to
Studio
Cue
Head
phone
Monitor
Mic
Line
PC USB
Phone
2.4
Studio
Output
Timer
P RODUCT DES CRIP TION
Software features
the optional PC USB module contains a built-in, Windows compatible,
USB sound card for USB connection to a PC. (maximum of one module
per PC)
�Free’ Digilink-Xtreme software for �Live On Air’ with the MARC-15
Arrakis Digilink-Xtreme software will recognize the PC-USB module in
the MARC-15 console and operate in the �free’ mode to provide ’Live
On Air’ features that are ideal for broadcast, internet, or podcast
style radio applications.
Digilink-Xtreme for �Live Air’ & �Automation’
control the PC audio Play List from the Console !!!
500 event Play List for manually assembling a show
Start & stop the Play List by turning a USB console module on and off
Cue audio files through the console while playing On Air (uses PC sound card for 2nd play)
Jingle box supports playing 3 of up to 300 carts at the touch of a button
Set the fade parameters on Songs for perfect crossfades in the Play List
Record the console Audition or Utility bus mix direct to the PC
Phoner recorder / editor for recording callers
supports up to 300 audio files in the Library
much much, more...
Digilink-Xtreme Software for Hard Disk Automation ($100/month)
For the ultimate in Automation, Digilink-Xtreme software (optional) provides complete hard disk based automation features for the PC
USB module in the MARC-15 console. Unlike standard Xtreme for satellite automation which includes the �Bridge’ routing switcher,
Xtreme for the MARC-15 uses the console for audio playback & recording. Where satellite based automation selects between multiple
satellite audio feeds, Xtreme for the MARC-15 plays entirely from audio files stored on the hard disk and does not control external
sources at all. This makes Xtreme for the MARC-15 ideal for hard file based automation for broadcast or internet radio applications.
The power of this system lies in the merging of console and PC into a single integrated play and record studio. The ability to use the
console to mix and control recording to the PC makes this system perfect for producing recorded programs. Use the MARC-15 console
to produce your live air segments and then go fully automated for the rest of the day or week.
the Xtreme Solutions Program provides software, phone training, phone & email support, and software upgrades
No contract required, cancel at any time if the Solutions Program doesn’t meet your needs
less than the monthly cost of most cell phone, cable TV, & wideband internet services
supports > 4000 audio files in the Library
Automate up to a Week in advance with up to 100 events per hour
Voice track your automated hours quickly and easily with Xtreme
Music Scheduling, powerful and flexible is standard in Xtreme
�X-sched’ traffic software for a separate traffic office is standard with Xtreme
Arrakis �X-Edit-Pro’ production software is �Free’ with the Solutions Program
�Xtreme-studios’ software for PC only News rooms and Remotes is standard with Xtreme
be live on air with the Console and then Automate the rest of your day or week
Download Xtreme from the Arrakis website and try it out (www.arrakis-systems.com)
2.5
P RODUCT DES CRIP TION
Technical features
The MARC-15 console by Arrakis Systems inc. is the culmination of > 25 years of leadership in the design of analog and digital Radio
consoles and > 15 years as the leader in hard disk automation for Radio.
Mechanical
Switch type:
Switch illumination:
Linear Fader type:
Rotary Fader type:
Rotary fader attachment:
IC sockets:
VU meters:
momentary, 5 million operation, for all front panel switches
LED, no incandescent lamps to burn out
conductive plastic for highest possible resolution and life
conductive plastic for highest possible resolution and life, 15,000 cycles
ribbon cable to a plug on the module
all socketed for ease of service
true VU ballistics
Electronic
Audio switching:
Audio level adjust:
Operational amplifiers:
Mic preamp:
Phantom power:
Logic ICs:
electronic switching with CMOS ICs for ultra high performance and reliability (no switches to clean)
for the ultimate in audio performance, audio is passed through the linear and rotary faders
NE5532
SSM2019, high performance IC with 1.5dB noise figure and .01% THD at gain = 100
48VDC, with external power supply
advanced CMOS logic for high noise immunity
Logic
Muting:
Mic Turret logic:
Channel Source control:
reed relay isolated (50 milliamps max)
on-off-cough-talkback-tally, buttons require dry closure to ground, tally is to ground
on and off, reed relay isolated (50 milliamps max)
2.6
P RODUCT DES CRIP TION
Electronic Specifications
Stereo Line Input
Freq ResponseS/NTHDCMRRMax InputMono Mic Input
Freq ResponseEINTHDCMRRImpedances
Mic InputLine InputOutputsSystem
Max OutputStereo SeparationPgm to Aud XTalkCue to Pgm XTalkOn Air Light Logic:
+(-).5dB 20-20kHz
-82dB typ, +8dBu in, +8 dBu out
.01% typ, +8dBu in, +8 dBu out
-75dB typ 1kHz
+23dBu, balanced
+(-).5dB 20-20kHz
-115dBu typ, -50dBu in, +8 dBu out
.05% typ , -50dBu in, +8 dBu out
-60dB typ 1kHz
> 2000 ohms
> 10000 ohms
< 100 ohms
+23dBu balanced
-75dB typ 1KHz
-80dB typ 1KHz
-70dB typ 20kHz
-90dB typ 1KHz
-75dB typ 20kHz
reed relay, 50mA max
Power Supply
110vac - 220 VAC,
50-60 hz, autosensing
Certified: UL, CE, CS, CB
External inline module:
3"W x 5 3/4"L x 1 3/4"D
2.7
P RODUCT DES CRIP TION
Physical Specifications
Arrakis Systems inc.
A/B
A/B
A/B
A/B
A/B
A/B
A/B
A/B
A/B
A/B
A/B
Off
line
Off
line
Ext1
Auto
Pgm
Pgm
Pgm
Pgm
Pgm
Pgm
Pgm
Pgm
Pgm
Pgm
Pgm
Pgm
Pgm
Pgm
Pgm
Start
Pgm
Aud
Aud
Aud
Aud
Aud
Aud
Aud
Aud
Aud
Aud
Aud
Aud
Aud
Aud
Aud
Stop
Aud
Utl
Utl
Utl
Utl
Utl
Utl
Utl
Utl
Utl
Utl
Utl
Utl
Utl
Utl
Utl
Reset
Utl
Cue
Cue
Cue
Cue
Cue
Cue
Cue
Cue
Cue
Cue
Cue
Cue
Cue
Cue
Ext1
Timer
Talk to
Studio
Cue
Head
phone
Monitor
Monitor
Mic 1
PC USB
Mic 2
Phone 1
Phone 2
Studio
Output
Timer
Control
Room
37 1/2"
The meter panel hinges for access
to console I/O and trimpots
The console is compact, low profile,
and a tabletop mount design
6 3/4"
0.315
0.365
2 1/8"
20"
POWER SUPPLY
110vac - 220 VAC, 50-60 hz, autosensing Certified: UL, CE, CS, CB
External inline module: 3"W x 5 3/4"L x 1 3/4"D
PHYSICAL SPECIFICATIONS
Dimensions Depth - 20",
Height - 6 3/4"
Width- 37 1/2"
2.8
OP ERA TIN G IN S TRUCTION S
OPERATING
INSTRUCTIONS
3.0
OP ERA TIN G IN S TRUCTION S
Basic Operation
The MARC-15 console is designed to be very easy to use. The three sets of VU meters follow the Program and Audition and
Utility buses. The phone system is very easy to use for off line talking to the caller as well as supporting a Live call in show
or Off-line contest call application.
VU Meters
Lighted switches
Timer
60 minute up
timer
Cue speaker & Volume
REAL VU meters for accurate ballistics tor ALL the
output buses
5 million operation,
LED lighted switches
for cueing audio and
Talkback from a Studio
Control Room
Monitor
Arrakis Systems inc.
A/B
A/B
A/B
A/B
A/B
A/B
A/B
A/B
A/B
A/B
A/B
Rec
ord
Off
line
Off
line
Ext1
Reset
Pgm
Pgm
Pgm
Pgm
Pgm
Pgm
Pgm
Pgm
Pgm
Pgm
Pgm
Pgm
Pgm
Pgm
Pgm
Start
Pgm
Aud
Aud
Aud
Aud
Aud
Aud
Aud
Aud
Aud
Aud
Aud
Aud
Aud
Aud
Aud
Stop
Aud
Utl
Utl
Utl
Utl
Utl
Utl
Utl
Utl
Utl
Utl
Utl
Utl
Utl
Utl
Utl
Auto
Utl
Cue
Cue
Cue
Cue
Cue
Cue
Cue
Cue
Cue
Cue
Cue
Cue
Cue
Cue
Ext1
Timer
Talk to
Studio
Cue
Selectable between
an external (air)
input, Program,
Audition, & Utility.
The output is line
level for external
powered speakers
Head
phone
Monitor
Mic 1
PC USB
Mic 2
Mic modules
Stereo Line modules
High performance mic
modules for control
room mics or talk
studio mics.
For CD players, MP3 players, and other analog
sources.
PC modules
When connected to a Windows PC
(via a USB cable) running Arrakis
Xtreme software, the channel On-off
button will start and stop playback of
audio from the PC. The Record button
will start and stop a PC recording.
Phone 1
Phone 2
Studio
Monitor
Output
Timer
Headphones
follows the
control room
selector switch. The
amp drives Hi-Z & 8
ohm headphones
Phone modules
The phone modules work with an
external hybrid (user supplied)
through both audio and logic
connections. Turn the Cue button
on to listen off-line to the caller.
Push the Off-line switch to use
the Control room mic to talk offline to the caller. To place the
caller on air just select a bus
and turn the channel on.
3.1
Studio Monitor module
This module provides a separate monitor and headphone
feed for use with a separate
talk studio. The �Talk’ button
will feed the control room mic
through the studio monitor
and headphone speakers for
an intercom function.
OP ERA TIN G IN S TRUCTION S
Mono mic level Input Modules
A/B INPUT SELECTOR
The module can select between two microphones. The �A’ input is activated
when the button is NOT lit. The �B’ input is active when the module is lit.
CHANNEL ON AND OFF
To turn a channel on, simply push the green ON switch at the bottom of the
fader. When the channel is on, the switch will be lighted. To turn the channel off, simply push the yellow OFF button.
A / B Input
selector
Program Bus
Assignment
A/B
Pgm
CHANNEL ON AND OFF LOGIC
The mic channel has support for a control turret. The logic controls: channel on, channel off, LED tally of channel on-off, cough, and talkback to console cue system.
Audition Bus
Assignment
Aud
Utility Bus
Assignment
Cue
OUTPUT BUS ASSIGNMENT
The green PGM and AUD and UTL buttons above the slide fader assign the
channel to any (or all) of the main audio mixing buses: Program & Audition
& Utility. Push the button once to light the button and assign it to the bus.
Push the lighted button again to unassign the channel from the bus.
Cue Bus
Assignment
Tally light
CUE
The cue button is a status lamp indicating whether cue has been activated
by turret logic from a remote studio. When lighted, the mic in the remote
studio has been placed into the cue system for talkback from that mic.
Note: this cue switch does NOT activate cue in the control room because
this would cause feedback between the cue speaker and the mic.
MUTE
When the channel is turned on, the monitor and cue speakers are muted
to stop feedback between those speakers and the microphone. Muting
occurs on both the �A’ and �B’ inputs.
3.2
Utl
Slide fader
Level control
Channel
On & Off
switches
Mic
OP ERA TIN G IN S TRUCTION S
Stereo Line Level Input Module
A/B INPUT SELECTOR
The module can select between two stereo input sources. The
�A’ input is activated when the button is NOT lit. The �B’ input is
active when the module is lit.
CHANNEL ON AND OFF
To turn a channel on, simply push the red ON switch at the bottom of the fader. When the channel is on, the switch will be
lighted. To turn the channel off, simply push the yellow OFF button.
A / B Input
selector
Program Bus
Assignment
CHANNEL ON AND OFF LOGIC
The stereo line level channel has support for a control turret
for use if an external mic preamp is used. The logic controls:
channel on, channel off, LED tally of channel on-off, cough, and
talkback to console cue system.
A/B
Pgm
Audition Bus
Assignment
Aud
Utility Bus
Assignment
Cue
Utl
Cue Bus
Assignment
The module also has logic to start and stop a source device on
the �A’ input. The �B’ input does not have source control logic.
The start command is sent when the channel is turned on and
the stop command is sent when the module is turned off.
Slide fader
Level control
OUTPUT BUS ASSIGNMENT
The green PGM and AUD and UTL buttons above the slide fader
assign the channel to any (or all) of the main audio mixing buses: Program & Audition & Utility. Push the button once to light
the button and assign it to the bus. Push the lighted button
again to unassign the channel from the bus.
Channel
On & Off
switches
Line
CUE
To activate cue, click on the yellow CUE button above the fader.
To exit the cue mode, click on the CUE button again.
Cue audio will be heard in the speaker in the VU meter housing
and in the Headphones. Cue logic automatically switches the
Headphones from the selected audio source to the cue audio
bus whenever any channel is placed into cue.
3.2
OP ERA TIN G IN S TRUCTION S
The PC-USB input Module
RECORD BUTTON
When the module is controlling Arrakis Xtreme software, this button will start and stop a manual recording on the PC computer.
Record
button
CHANNEL ON AND OFF
To turn a channel on, simply push the red ON switch at
the bottom of the fader. When the channel is on, the
switch will be lighted. To turn the channel off, simply
push the yellow OFF button.
Program Bus
Assignment
Audition Bus
Assignment
Utility Bus
Assignment
CHANNEL ON AND OFF LOGIC
When the module is controlling Arrakis Xtreme software, the channel on will start the playlist on the PC to
playing. When the channel is turned off, the playlist will
stop playing. This allows logic functionality similar to a
multideck cart machine.
Rec
ord
Pgm
Aud
Utl
Cue
Cue Bus
Assignment
Slide fader
Level control
OUTPUT BUS ASSIGNMENT
The green PGM and AUD and UTL buttons above the
slide fader assign the channel to any (or all) of the
main audio mixing buses: Program & Audition & Utility.
Push the button once to light the button and assign it
to the bus. Push the lighted button again to unassign
the channel from the bus.
Channel
On & Off
switches
PC USB
CUE
To activate cue, click on the yellow CUE button above
the fader. To exit the cue mode, click on the CUE button
again.
The PC USB module is ideal for interfacing the console with a Windows PC (XP or VISTA). Because the
hardware is Windows compatible, both Arrakis software and 3rd party software (such as Adobe
Audition) will recognize and play/record from the
module. The Arrakis software is also controlled by
the module channel on-off switches to start and
stop the playlist just like a cart stack. The Record
button starts and stops a manual record from the
front panel of the module. Powerful Arrakis Xtreme
software is supplied free with this module and full
automation software is available as well under the
Arrakis Xtreme-Solutions program.
Cue audio will be heard in the speaker in the VU meter
housing and in the Headphones. Cue logic automatically
switches the Headphones from the selected audio
source to the cue audio bus whenever any channel is
placed into cue.
3.3
OP ERA TIN G IN S TRUCTION S
The Telephone Input Module
OFF-LINE ASSIGNMENT SWITCH
This switch will connect the control room mic to the caller and feed the caller to the
console cue system. The caller will be automatically removed from the Pgm, Aud, and
Utlk buses so he will not be on air. This allows the caller and the console operator to
speak �off-line’.
CHANNEL ON AND OFF
To turn a channel on, simply push the red ON switch at the bottom of the fader. When
the channel is on, the switch will be lighted. To turn the channel off, simply push the
yellow OFF button.
CHANNEL ON AND OFF LOGIC (Hybrid control)
The phone channel provides momentary, relay isolated logic to pick up the caller line
(start) and to release the phone line (stop)
OUTPUT BUS ASSIGNMENT
The green PGM and AUD and UTL buttons above the slide fader assign the channel to
any (or all) of the main audio mixing buses: Program & Audition & Utility. Push the button once to light the button and assign it to the bus. Push the lighted button again to
unassign the channel from the bus.
HYBRID AUDIO FEED
The output to the phone hybrid that the caller will hear is determined by the module’s
output bus assignments. The caller will hear a mix of all three output assignments. To
eliminate feedback, the output to the phone hybrid will NOT include the phone callers
voice. This is call mix-minus.
Off-line
Assignment
Program Bus
Assignment
Off
line
Pgm
Audition Bus
Assignment
Aud
Utility Bus
Assignment
Cue
Utl
Cue Bus
Assignment
Slide fader
Level control
Channel
On & Off
switches
Phone
CUE
Cue will switch the caller into the cue system for listening to him without him being
on air.
To activate cue, click on the yellow CUE button above the fader. To exit the cue mode,
click on the CUE button again.
Cue audio will be heard in the speaker in the VU meter housing and in the Headphones.
Cue logic automatically switches the Headphones from the selected audio source to
the cue audio bus whenever any channel is placed into cue.
TWO PHONE MODULES
The mainframe supports either one or two phone modules. Each requires its own
hybrid. The audio feed to the hybrid includes the audio from the OTHER phone module.
3.4
IMPORTANT
Two phone modules can be placed in
a single mainframe. They are...
1) MARC-PH1
2) MARC-PH2
Two PH1s or two PH2 modules should
not be used in the same mainframe
OP ERA TIN G IN S TRUCTION S
The Control Room Monitor system
The Control Room Monitor system is the main audio monitoring system for the studio. It features an input selector
switch and a volume level control. The output of the monitor
system is connected to an external audio power amplifier
and speakers. The level control on the external amplifier
should be set for the maximum sound level desired in the
studio.
Monitor
selector
MONITOR MUTING
When a control room microphone module is turned on, the
monitor system will mute (audio is turned off) so that there
will not be feedback from the speakers to the microphone.
Auto
Ext1
Start
Pgm
Stop
Aud
Reset
Utl
Timer
MONITOR SELECTOR SWITCH
This switch selects the audio source for the Monitor system.
1) AIR- this is usually an off air audio feed to monitor the
actual transmitted signal
2) PGM- the main Program output bus from the console
3) AUD- a secondary Program bus that can be used for
several purposes such as Recording
4) UTL- a secondary Program bus that can be used for
several purposes such as Recording
Cue
Monitor
Volume
Head
phone
Monitor
MONITOR VOLUME FADER
Sets the monitor level into the external audio amplifier and
speaker.
Output
3.5
Timer
OP ERA TIN G IN S TRUCTION S
The Headphone system
The Headphone (earphone) system in the MARC-15 console is provided
so that audio can be listened to while the microphone is active and the
monitor speakers are muted. The Headphone system receives the
same audio feed as the Monitor system but does not mute when the
microphone channel is turned on. The Headphone system has a 1/4"
headphone jack on the front of the module The headphone amplifier
connected to the headphone jack is designed to work with high impedance and 8 ohm headphones. The module also has a balanced, line
level audio output for use with an external headphone amp.
Audio
selector
CUE
The MARC-15 console features Autocue. Whenever a channel is placed
into cue, the audio in the Headphone system will mute and the Cue
audio will play over the Program signal.
Auto
Ext1
Start
Pgm
Stop
Aud
Reset
Utl
Timer
Headphone
Volume
TALKBACK
When talkback logic is activated from another studio, then Auto-cue is
activated, Headphone program audio is muted, and the audio from the
Talkback input is placed into the Headphone system for intercom.
MUTING
The headphone system is not muted. When the control room microphone is turned on, the Monitor system will mute (audio is turned off)
so that there will not be feedback from the speakers to the microphone. The headphone system can not have audio feedback so muting
is not required.
MONITOR SELECTOR SWITCH
This switch selects the audio source for the Monitor & Headphone
systems.
1) AIR- this is usually an off air audio feed to monitor the actual
transmitted signal
2) PGM- the main Program output bus from the console
3) AUD- a secondary Program bus that can be used for several purposes such as Recording
4) UTL- a secondary Program bus that can be used for several purposes such as Recording
HEADPHONE VOLUME FADER
Sets the headphone level to the internal headphone amplifier.
3.6
Cue
Head
phone
Headphone
Jack
Monitor
Output
Timer
OP ERA TIN G IN S TRUCTION S
The Cue system
The cue system is designed for monitoring an audio source
without placing it on air. This feature is useful for listening
to a network feed before bringing it to air, listening to a CD
to be certain it is the correct song, etc.
ACTIVATING CUE
To activate cue, click on the CUE button on an input source channel. To exit the cue mode, click on the CUE button again. The cue
signal is PRE-fader and therefore the fader level and the channel
ON-OFF status has no effect on the cue signal.
Auto
Ext1
Start
Pgm
Stop
Aud
Reset
Utl
Timer
CUE AUDIO
Cue audio will be heard in the built in Cue speaker and the Headphones. In the Headphone system, Autocue will mute the Program in the headphones and play the cue audio over top of program audio.
Cue
CUE LEVEL
CONTROL
CUE FADER
The cue fader adjusts the level in the internal cue speakers. It
does not adjust the level of the cue in the headphones.
MUTING
The cue speaker audio will be muted to stop feedback whenever
Mic channels One or Two are turned on by their respective Onoff switches.
Head
phone
Monitor
Output
Timer
CUE SPEAKER
3.7
OP ERA TIN G IN S TRUCTION S
The Timer
The MARC-15 console features a 60 minute up timer. The timer is controlled by four buttons on the output module.
MANUAL MODE
When the Auto button light is lit, the timer is in the manual mode and
will respond to the Start, Stop, and Reset buttons. The manual mode is
active when the console is first powered up.
AUTO MODE
When the Auto button is NOT lit, the timer is in auto mode. When in
auto mode, the timer will reset to zero and start timing whenever a
module is turned on.
A jumper on each module determines whether a module will trigger
the timer if the timer is in auto mode. As set from the factory, all
non-mic modules are set to trigger the timer when in auto mode.
MANUAL
CONTROLS
RESET
resets the
timer to
zero
START
starts the
timer
STOP
stops the
timer
Program
Audition
3.8
Ext1
Start
Pgm
Stop
Aud
Auto
Utl
Timer
AUTO
if NOT lighted, then Auto
is on and the
timer will not
respond to
the manual
controls. The
timer will
reset to
zero and
start timing
whenever a
console
module is
turned on
Timer
Arrakis Systems inc.
Reset
Utility
Cue
Head
phone
Monitor
Output
Timer
OP ERA TIN G IN S TRUCTION S
The VU meters
The MARC-15 console features a set of VU meters for all of the console mixing buses (Pgm and Aud and UTL).
This simplifies operation and reduces operator error.
Program Meters
Arrakis Systems inc.
Program
Audition Meters
Audition
3.9
Utility Meters
Utility
IN S TA LLA TION IN S TRUCTION S
INSTALLATION
INSTRUCTIONS
Getting Started:
Mainframe:
Power Supply:
Cabling
Gorunding
Output Module wiring:
Input Module wiring:
PC Setup for USB module:
ARC-16SW:
Basic Calibration:
Output Board Calibration:
Module Jumper setup:
Summary wiring pages:
Balanced & Unbalanced:
Ground loops
4.0
4.1 - 4.4
4.5
4.6
4.7
4.8
4.9 - 4.14
4.15 - 4.19
4.20
4.21 - 4.23
4.24
4.25
4.26
4.27 - 4.28
4.29 - 4.33
4.34 - 4.35
IN S TA LLA TION IN S TRUCTION S
Basic Description
Standard cables (supplied)
Fast & easy installation
All IO is by World standard RJ45 connectors
Cables with RJ45s on one end are supplied standard with the MARC-15
Optional cables are available with XLR and RCA on one end for convenience
The MARC-15 is quick and easy to install. The meter panel hinges up and back to
provide fast access to the RJ45 IO connectors and trimpots. The cabling exits
through the bottom rear of the console and can be either through the table or
simply out the rear of the console above the tabletop.
Ten foot cables (connectorized at one end with molded RJ45 connectors) are
provided for the output module and the �A’ inputs for the input modules.
(NOTE: the cables as shipped are 20-25' with connectors at BOTH ends. The
cables are then cut in the middle to the needed length. By doing it this way, a
20' cable can be cut into a 3' and 17' cable)
The power supply is an external �brick’ type module that supports 110VAC 220VAC for domestic or international installations. It simply plugs into the rear
of the console.
Ten foot cables (molded RJ45 on one end other end
open) are supplied standard with the MARC-15
optional cables
Arrakis can supply the audio and
logic cables wired on both ends
for your studio.
The meter panel hinges for access
to console I/O and trimpots
Cables exit the rear bottom
of the console.
4.1
IN S TA LLA TION IN S TRUCTION S
Unpacking
a) PACKING SLIPS- do you have everything?
Check the Packing Slips that come with the shipment to
be certain that all packages have been received.
b) CHECK FOR DAMAGE
Check all packages and equipment for damage IMMEDIATELY upon receipt.
If damage is found, contact Arrakis Systems immediately to report the damage. (refer to inside cover of this
manual for contact information)
c) CAREFULLY GO THROUGH EACH BOX
Arrakis inspects every shipment for accuracy. You will
receive all of the appropriate documentation, install kit,
spare parts kit, and equipment. Be very careful to not
throw away anything if you decide to throw out the shipping materials.
d) KEEP ALL PACKING MATERIALS
Arrakis consoles are shipped in custom shipping containers. Keep all containers at least until the installation
is complete. This is in case some piece of equipment
may need to be returned to the factory for service.
It is a good idea to keep the shipping materials for the
life of the product. Arrakis is not responsible for shipping damage to products not shipped to the factory in
the original packing materials.
4.2
SAVE ALL PACKING MATERIAL
IN S TA LLA TION IN S TRUCTION S
Before you start
a) PHYSICAL SPACE
It is important to install the console with sufficient space around it to operate and service the console
easily.
b) AREA IN FRONT OF THE CONSOLE
It is normal to have 8-10" between the front of the console and the front of the table so that a piece of
paper may be laid on the table in front of the console.
c) SCRIPT OR COPY BOARD
Are you going to use a copy bridge that span the top of the console for paper or other objects. A copy
bridge can allow the console to be placed close to the front of the table in tight rooms.
d) ADEQUATE VENTILATION
It is important to provide adequate ventilation to electronic equipment. High temperatures can reduce the
life of equipment.
e) 110V - 220VAC OPERATION
The console comes with a 110VAC-220VAC autosensing external power supply as standard equipment.
f) STATIC
Static discharge to electronic devices can cause damage, reduce performance, or cause noise in the system. Proper choice of carpet is an important consideration when building a studio.
g) THE CONSOLE POWER SUPPLY
The console is powered by an external, regulated power supply. The supply simply plugs into the back of
the console. There are no high voltages within the console
4.3
IN S TA LLA TION IN S TRUCTION S
Getting started... a MUST Read !
a) CONSUMER SOURCE EQUIPMENT
The MARC-15 console is designed to be used with balanced professional & unbalanced consumer type audio source equipment such as CD players,
MDs, DAT machines, cassette machines, etc. Unbalanced consumer equipment is designed to perform well in compact studios where audio cables
are short. Balanced audio is required when connecting multiple studios or with long audio cable runs ( > 10 feet). When choosing consumer audio
equipment, choose double insulated equipment that has 2 prong AC power plugs (not the 3 prong plugs).
b) AC POWER CONSIDERATIONS
Plug all of the equipment in your studio into a single AC power strip!
Unbalanced consumer source equipment is not designed to reject AC power line hum. This makes it important to put ALL of the equipment
in the studio on the same branch of the AC power and preferably on a single AC power outlet. A single power outlet will have a 1500-2000 watt
capacity. That is plenty of power for most studios. Simply plug a multi-outlet AC power strip into the single wall outlet and then all of your equipment into the power strip. If possible, the power strip should be the kind that has internal surge protection.
Because many buildings have as many as 8-12 duplex wall outlets on a single 1500-2000 watt branch, you must have NO other equipment
on any of those 8-12 other outlets. Make sure the branch your outlet is on does not also power the lights or any other building equipment.
c) SOME THOUGHTS ABOUT 60 CYCLE HUM (or some ideas about what to do if you get it)
The RCA audio cables used in consumer audio equipment connect the chassis ground and signal ground of all of the equipment in the studio together through the cable shield. All shield ground connections should be as tight and low impedance as possible. Use only high quality RCA (IHF) audio
cables.
Most consumer audio equipment will have a 2 prong AC power plug. Some equipment has a 3 prong AC power plug. The third prong on a 3
prong plug is a “Safety Ground” which grounds the chassis to reduce shock hazard. The 3rd prong must never be removed even though it creates
a 2nd ground path along with the audio cable shield ground. Two ground paths creates a “Ground loop” antenna which picks up 60 cycle AC hum. If
possible, use only equipment that has 2 prong AC power plugs. With stubborn hum, replace the equipment with 3 prong AC power plugs with equipment with 2 prong AC power plugs. This is often less expensive that making a custom audio cable with audio transformer isolation.
If there is NO other ground connected to the studio, a single piece of equipment with a 3 prong AC plug does not create a ground loop.
However, if there is another ground (such as from another studio) or a 2nd piece of equipment with a 3 prong AC power plug, then a ground loop is
completed. If you can not change to two prong equipment, it may be necessary to use an audio isolation transformer on the audio cable to break
the audio ground path. Contact a technician or the factory on how to build a transformer isolated audio cable.
In some stubborn cases of hum (or RF interference), the best solution is to make the ground resistance between ALL of the equipment
as low as possible. To do this, connect all of the equipment chassis’ together with #12 stranded, insulated wire. Each piece of equipment is to have
its own wire that returns in a star configuration to a single point in the studio. That single point should return by a single ground wire back to the
main station ground. A 2"-4" copper ground strap to station ground is best.
d) CONNECTING MULTIPLE STUDIOS
When connecting multiple studios, long audio cables are sometimes necessary. These long cables can introduce AC hum into your audio. In these
cases, it may be necessary to use distribution amplifiers with balanced inputs and outputs (or audio isolation transformers) to break the ground
path and to cancel the AC hum.
e) STEP BY STEP INSTALLATION PROCEDURE
When building a studio, it is important to be able to isolate problems that may be causing noise, hum, or even not passing audio. To do this properly,
the studio should be assembled and tested one piece of equipment at a time. Each problem is detected and eliminated as it occurs.
4.4
IN S TA LLA TION IN S TRUCTION S
The Mainframe
a) MOUNTING
The mainframe is tabletop mounted. It does not require screwing down to the table surface.
b) CABLE INGRESS AND EGRESS
All cables enter and exit the console at the rear of the mainframe.
c) ACCESS TO THE CONSOLE CONNECTORS
The mainframe VU meter panel hinges back to provide access to the console wiring area. The motion of the VU meter panel is NOT
limited so be careful to not scratch the paint or drop the panel.
d) MDOULE CONNECTORS
All module connectors are RJ45s that plug into the rear of each module as illustrated below.
#6 screw ground lug for grounding the
mainframe to the stationground
e) MAINFRAME GROUND
A threaded screw ground lug is provided
on the motherboard panel, beneath the VU
meter bridge, on the left side of the console (as viewed from the front).
Connect the main station ground to this
screw lug to ground the console.
4.5
IN S TA LLA TION IN S TRUCTION S
Power Supply
Main Power Supply
The power supply is an external regulated supply as illustrated below.
The DC power connector plugs into the
hole in the rear of the mainframe as
shown. The indented key tab on the DC
power connector faces up. The connector is recessed a couple of inches into
the frame.
NOTE: the recessing of the connector can
make it difficult to plug in. It is much easier to plug the connector in from the
rear of the console than from the front.
48 VDC Phantom Power Supply
The phantom power supply is also external and is plugged into this hole
48 VDC Phantom Power Supply
The phantom power supply is also external and is plugged into a hole near where
the main power supply is plugged.
MAIN POWER SUPPLY
110vac - 220 VAC,
50-60 hz, autosensing
Certified: UL, CE, CS, CB
External inline module:
3"W x 5 3/4"L x 1 3/4"D
4.6
IN S TA LLA TION IN S TRUCTION S
Cabling
The cables supplied with the MARC-15 are #24 gauge, stranded, CAT5, 20-25 feet long, with RJ45 connectors on
both ends. Each cable is intended to be cut into two cables with an RJ45 connector at one end and for the other
end to be wired to the specific connector for the equipment on the other end.
Shield ground
The RJ45 cables supplied with the MARC-15 are shielded. They have a shield drain wire. This drain wire should
be grounded on the connector at the equipment end of the cable or at the punch block, not at the console end.
Mic Cables
The mic module has shield grounding RJ45 connectors at the module. The shield is therefore grounded through
the module.
Standard cables (supplied)
EIA/TIA 568B WIRING STANDARD COLORS
PIN
Wire Color
Audio
1
White w/Orange Stripe
Left (+)
2
Orange w/White Stripe
Left (-)
3
White w/Green Stripe
Right (+)
4
Blue w/White Stripe
Ground
5
White w/Blue Stripe
6
Green w/White Stripe
Right (-)
7
White w/Brown Stripe
8
Brown w/White Stripe
1,2,3,4,5,6,7,8
RJ45
Ten foot cables (molded RJ45 on one end other end
open) are supplied standard with the MARC-15
4.7
IN S TA LLA TION IN S TRUCTION S
Grounding
THE BASICS OF GROUND SYSTEMS (IMPORTANT)
1) MANY TYPES OF GROUNDS
Because there are several electrical systems in a broadcast facility, there are also several ground systems in the facility. Each
ground system fulfills a different function. Understanding these ground systems is important to be able to properly design and
debug an audio facility.
2) AC POWER GROUND
AC power wiring has a “hot” wire (typically 110VAC) and a “ground” wire. The ground wire is the return path for currents in the
“hot” wire. The ground wire is not a perfect zero resistance so a small 60 cycle voltage exists on the ground wire.
3) AC SAFETY GROUND (Equipment Chassis Ground)
The AC power system has a 3rd conductor which is a “safety” ground. This 3rd conductor is connected to the 3rd prong on the
AC outlet. On equipment with a 3rd prong on their AC plug, this safety ground is usually connected to the metal chassis of the
product. If something should happen that connects the “hot” 110VAC wire to the metal chassis of the product, then the safety wire
will throw the circuit breaker and the lethal voltage will be removed from the chassis. While there is usually no current on this
wire, it is often run in series to many parts of the building and is not a quality ground reference.
4) RF SHIELDING GROUND
The audio signal cables used to connect two or more pieces of audio equipment usually have a metal foil shield surrounding the
signal wires inside the cable. This metal shield protects the sensitive audio signal wires from electronic noise that would contaminate the audio signal. The shield is connected to a ground to drain the interfering electronic noise away from the audio signal. The
shield should always be grounded at one end only so as not to create a ground path between the connected equipment.
5) AUDIO SIGNAL GROUND... MUST BE KEPT NOISE FREE
Each piece of electronic audio equipment has an internal DC power supply which provides a DC voltage and a ground to the internal circuits. This ground is often called the “audio ground,” “circuit ground,” “signal ground,” etc. The internal audio ground is
connected to all of the various circuits inside the device. Whether the audio equipment is professional balanced equipment or
unbalanced consumer equipment, any noise that reaches the audio signal ground inside the equipment will be coupled into the
audio signal itself and appear at the audio output of the device. It is extremely important that the audio ground be as free from
noise as possible. This makes it important for the audio signal ground to not be connected to AC Power ground, AC Safety ground,
or RF Shield ground.
6) REAL WORLD SYSTEMS HAVE MIXED GROUNDS
In real world audio equipment, several ground systems connect to each audio device. Which ones are connected to the audio signal ground vary from product to product. Most consumer products are “double insulated” and do not have a 3rd wire safety
ground to introduce noise. However, most professional audio products connect the 3rd wire safety ground directly to the product’s chassis and the audio signal ground which does introduce noise. In consumer products the cable shield ground is the audio
signal ground while in professional products, the cable shield may (or may not) be connected to the audio signal ground.
4.8
IN S TA LLA TION IN S TRUCTION S
Grounding (continued)
GROUNDING THE MARC-15 CONSOLE
1) CONSOLE CHASSIS GROUND
The chassis of the MARC-15 is floating. It is NOT connected to ground at all. This is because the power for the console is provided
by an external power supply and only low voltages exist in the console. However, to maximize safety, minimize static shock problems, as well as for RF shielding reasons, the console chassis should be grounded. This is accomplished by grounding the console
to station ground via a screw on the mainframe mounting panel under the meter panel. (refer to �Mainframe Grounding’ in Section
4.5. ).
2) AC POWER GROUND
Be certain that the entire studio is on the same branch of AC power. The easiest way to do this is to use only a single power strip
for the studio. Different studio equipment on different branches of AC power often causes a ground loop and hum. Do not have
lights or any other equipment on the same branch as the studio power.
3) CABLE SHIELD GROUNDS & PUNCH BLOCKS
If punch blocks are used, the shield drain wire from the RJ45 cables provided with the console should be grounded at the punch
block, not the console. The punch block can then be grounded to the main station ground.
4) CABLE SHIELD GROUNDS & WIRING DIRECTLY TO EQUIPMENT
If the console is wired directly to source or other equipment, ground the shield drain wire at the equipment end, not the console.
Never ground the shield at both ends. This usually causes a ground loop and hum.
5) AUDIO SIGNAL GROUND AND BALANCED EQUIPMENT
If at all possible, use only professional balanced audio equipment. With this equipment, audio signal grounds are not connected and
only balanced signals pass between them. The balanced amplifiers in the system null out the noise introduced in the cables.
6) AUDIO SIGNAL GROUND AND UNBALANCED (CONSUMER) EQUIPMENT
If unbalanced consumer equipment is used, then the audio signal ground of the consumer product and the console audio signal
ground are connected. In these cases, try to keep wiring short (less than 10 feet). Also, try to purchase equipment that is double
insulated (does not have a 3rd prong on the AC power plug). If there is a third prong on the consumer equipment, then the audio
signal ground is also connected to the AC safety ground of the building which can introduce noise and cause ground loops.
7) STATION GROUND
In general, the station will have a copper rod driven several feet into the ground as the main station ground point. A copper
ground strap (2-4") or large ground cable (#14 or larger) runs from the station ground to EACH studio separately. This forms a
�STAR’ ground system. More than one studio should not be on the same ground cable.
8) MORE INFORMATION...
For much more information on studio wiring systems, go to to the Console section of the Arrakis website (www.arrakissystems.com)
4.8
IN S TA LLA TION IN S TRUCTION S
Monitor amp & Speaker Wiring
The console has a balanced, line level monitor audio output that is designed to connect to an external audio power amplifier.
The console output will not directly drive speakers.
Connect the audio amplifier input to the console Monitor Output on the back of the output module as shown below. Follow the
amplifier’s instructions and connect speakers to the amplifier. Set the volume control on the monitor amplifier to 1/2. Once a source
is connected to the console, test the monitor amp. The audio through the monitor speakers should be clear and without significant
noise or hum.
WARNING- do NOT have all levels controls at maximum. Too much audio level through your speakers can damage the speakers.
HUM OR NOISE IN THE MONITOR SPEAKERS
It is possible to get hum with only the monitor amp itself connected to
the console. This is not a problem with the console. It is caused by a
ground loop between the monitor amp and the console power.
A ground loop is created whenever there are two or more ground
paths between two pieces of equipment. This creates a large loop
antenna which detects 60 cycle AC as a hum. Be certain to place both
pieces of equipment on the same AC power strip. If hum persists, then
it is in the audio wiring. Shield grounds connected at both ends of the
cable often are the second ground path. The shield should be grounded
at one end only. To find a ground loop, unplug audio cables one at a
time until the hum goes away. Once the offending cable is isolated,
examine the wiring to find how the loop is being created. Break the
loop.
Connect an
audio power
amp and
speakers
to the MON
output of
the console
Audio power amp
Miscellaneous IO
Monitor Output
Earphone Output
External Monitor In
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
Mute Relay
Mute Relay
Cue Input (-10dBu)
nc
Talkback (12V)
Talkback (logic)
(+) Talkback in
(-) Talkback in
Left (+) out
Left (-) out
Right (+) out
Ground
nc
Right (-) out
nc
nc
Left (+) out
Left (-) out
Right (+) out
Ground
nc
Right (-) out
Cue out to amp
nc
Left (+) in
Left (-) in
Right (+) in
Ground
nc
Right (-) in
Left -10dBu input
Right -10dBu input
TOP REAR VIEW OF THE OUTPUT MODULE
Main Console Outputs
Monitor Inputs and Outputs
Output Module (MARC-OB)
4.9
IN S TA LLA TION IN S TRUCTION S
Headphone Wiring
The console has a built in headphone amplifier that will drive hi impedance headphones and 8 ohm headphones. The headphone jack for the amplifier is located at the bottom right of the output module (front right corner of the console). The console also
has a balanced line level output for use with an external headphone amplifier. The balanced output is located on the output module on
an RJ45 connector.
WARNING- do NOT have all levels controls at maximum. Too much audio level through your system can damage the headphones.
HUM OR NOISE IN THE HEADPHONES
It is possible to get hum with only the headphone amp itself connected
to the console. This is not a problem with the console. It is caused by a
ground loop between the headphone amp and the console power.
A ground loop is created whenever there are two or more ground
paths between two pieces of equipment. This creates a large loop
antenna which detects 60 cycle AC as a hum. Be certain to place both
pieces of equipment on the same AC power strip. If hum persists, then
it is in the audio wiring. Shield grounds connected at both ends of the
cable often are the second ground path. The shield should be grounded
at one end only. To find a ground loop, unplug audio cables one at a time
until the hum goes away. Once the offending cable is isolated, examine
the wiring to find how the loop is being created. Break the loop.
Audio power amp
Miscellaneous IO
Monitor Output
Earphone Output
External Monitor In
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
Mute Relay
Mute Relay
Cue Input (-10dBu)
nc
Talkback (12V)
Talkback (logic)
(+) Talkback in
(-) Talkback in
Left (+) out
Left (-) out
Right (+) out
Ground
nc
Right (-) out
nc
nc
Left (+) out
Left (-) out
Right (+) out
Ground
nc
Right (-) out
Cue out to amp
nc
Left (+) in
Left (-) in
Right (+) in
Ground
nc
Right (-) in
Left -10dBu input
Right -10dBu input
TOP REAR VIEW OF THE OUTPUT MODULE
Main Console Outputs
Monitor Inputs and Outputs
Output Module (MARC-OB)
4.10
IN S TA LLA TION IN S TRUCTION S
External Monitor Input Wiring
The console has an external audio input for the monitor system. It is usually connected to an off air signal for the radio station from a radio tuner or modulation monitor. The external input has input for both stereo balanced (+4dBU) and stereo unbalanced
(-10dBu) inputs. The balanced input has level trim pots. The unbalanced input is fixed for -10dBu consumer levels.
EIA/TIA 568B WIRING STANDARD COLORS
PIN
Wire Color
Audio
1
White w/Orange Stripe
Left (+)
2
Orange w/White Stripe
Left (-)
3
White w/Green Stripe
Right (+)
4
Blue w/White Stripe
Ground
5
White w/Blue Stripe
6
Green w/White Stripe
Right (-)
7
White w/Brown Stripe
8
Brown w/White Stripe
1,2,3,4,5,6,7,8
RJ45
Tuner or Off Air
Monitor Output
Miscellaneous IO
Monitor Output
Earphone Output
External Monitor In
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
Mute Relay
Mute Relay
Cue Input (-10dBu)
nc
Talkback (12V)
Talkback (logic)
(+) Talkback in
(-) Talkback in
Left (+) out
Left (-) out
Right (+) out
Ground
nc
Right (-) out
nc
nc
Left (+) out
Left (-) out
Right (+) out
Ground
nc
Right (-) out
Cue out to amp
nc
Left (+) in
Left (-) in
Right (+) in
Ground
nc
Right (-) in
Left -10dBu input
Right -10dBu input
TOP REAR VIEW OF THE OUTPUT MODULE
Main Console Outputs
Monitor Inputs and Outputs
Output Module (MARC-OB)
4.11
IN S TA LLA TION IN S TRUCTION S
On Air Light Wiring
The console features a sustained reed relay closure for activating an on air light. The reed relay has a maximum current of 50 milliamps and
should be used to drive an external relay or other AC devices to drive the on air light.
EIA/TIA 568B WIRING STANDARD COLORS
PIN
Wire Color
Audio
1
White w/Orange Stripe
Left (+)
2
Orange w/White Stripe
Left (-)
3
White w/Green Stripe
Right (+)
4
Blue w/White Stripe
Ground
5
White w/Blue Stripe
6
Green w/White Stripe
Right (-)
7
White w/Brown Stripe
8
Brown w/White Stripe
1,2,3,4,5,6,7,8
RJ45
ON AIR (MUTE) RELAY
Miscellaneous IO
Monitor Output
Earphone Output
External Monitor In
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
Mute Relay
Mute Relay
Cue Input (-10dBu)
nc
Talkback (12V)
Talkback (logic)
(+) Talkback in
(-) Talkback in
Left (+) out
Left (-) out
Right (+) out
Ground
nc
Right (-) out
nc
nc
Left (+) out
Left (-) out
Right (+) out
Ground
nc
Right (-) out
Cue out to amp
nc
Left (+) in
Left (-) in
Right (+) in
Ground
nc
Right (-) in
Left -10dBu input
Right -10dBu input
TOP REAR VIEW OF THE OUTPUT MODULE
Main Console Outputs
Monitor Inputs and Outputs
Output Module (MARC-OB)
4.12
IN S TA LLA TION IN S TRUCTION S
Talkback (intercom) Wiring
The console has two audio inputs for use in talkback:
(1) The console has a balanced, line level audio input that feeds the control room monitor speakers (unless muted by a mic) and in the earphones
(whether muted or unmuted).
(2) The console has a second -10dBu unbalanced line level input into the cue system for talkback. The audio on this input will act the same as cue
audio (mute into the cue speakers when a mic is turned on, but autocue into the headphones if the talback logic is activated).
The logic input must be a dry closure between pins 5 (+12V) and pin 6 (logic). This will trigger auto cue so that audio fed into talkback input 2
(cue) will be heard in the headphones.
EIA/TIA 568B WIRING STANDARD COLORS
PIN
Wire Color
Audio
1
White w/Orange Stripe
Left (+)
2
Orange w/White Stripe
Left (-)
3
White w/Green Stripe
Right (+)
4
Blue w/White Stripe
Ground
5
White w/Blue Stripe
6
Green w/White Stripe
Right (-)
7
White w/Brown Stripe
8
Brown w/White Stripe
1,2,3,4,5,6,7,8
RJ45
TALKBACK
Miscellaneous IO
Monitor Output
Earphone Output
External Monitor In
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
Mute Relay
Mute Relay
Cue Input (-10dBu)
nc
Talkback (12V)
Talkback (logic)
(+) Talkback in
(-) Talkback in
Left (+) out
Left (-) out
Right (+) out
Ground
nc
Right (-) out
nc
nc
Left (+) out
Left (-) out
Right (+) out
Ground
nc
Right (-) out
Cue out to amp
nc
Left (+) in
Left (-) in
Right (+) in
Ground
nc
Right (-) in
Left -10dBu input
Right -10dBu input
TOP REAR VIEW OF THE OUTPUT MODULE
Main Console Outputs
Monitor Inputs and Outputs
Output Module (MARC-OB)
4.13
IN S TA LLA TION IN S TRUCTION S
Program Output Wiring
These outputs are active, balanced with < 100 ohms output impedance. They are factory calibrated for +4dBu balanced levels.
EIA/TIA 568B WIRING STANDARD COLORS
PIN
Wire Color
Audio
1
White w/Orange Stripe
Left (+)
2
Orange w/White Stripe
Left (-)
3
White w/Green Stripe
Right (+)
4
Blue w/White Stripe
Ground
5
White w/Blue Stripe
6
Green w/White Stripe
Right (-)
7
White w/Brown Stripe
8
Brown w/White Stripe
1,2,3,4,5,6,7,8
RJ45
Main Console Outputs
Program Output
Audition Output
Utility Output
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
Left (+) out
Left (-) out
Right (+) out
Ground
nc
Right (-) out
Mono out (+)
Mono out (-)
Left (+) out
Left (-) out
Right (+) out
Ground
nc
Right (-) out
Mono out (+)
Mono out (-)
Left (+) out
Left (-) out
Right (+) out
Ground
nc
Right (-) out
Mono out (+)
Mono out (-)
TOP REAR VIEW OF THE OUTPUT MODULE
Main Console Outputs
Monitor Inputs and Outputs
Output Module (MARC-OB)
4.14
IN S TA LLA TION IN S TRUCTION S
Mono mic level Input Module Wiring
Connectors
Logic �B’ �A’
Channel Control Logic (Turrets)
The pins on the �Logic’ connector are used to remote control the module for applications such as studio talk turrets. Controls include Channel On, Off, Tally LED driver for on-off status, Talk to Console, and
momentary Cough logic. All control is by dry closure to ground. The
tally LED should be connected through a 510 ohm resistor to ground.
�B’
Input
�A’
Input
A/B
Pgm
Channel On
Aud
Channel Off
Utl
On-off Tally LED
Cue
Talk to Console
Cough
Ground
EIA/TIA 568B WIRING STANDARD COLORS
PIN
Wire Color
Audio
1
White w/Orange Stripe
Left (+)
2
Orange w/White Stripe
Left (-)
3
White w/Green Stripe
Right (+)
4
Blue w/White Stripe
Ground
5
White w/Blue Stripe
6
Green w/White Stripe
Right (-)
7
White w/Brown Stripe
8
Brown w/White Stripe
1,2,3,4,5,6,7,8
RJ45
Mic
1) Mono Mic Input module (MARC-MIC)
MIC & STEREO LINE MODULES
Logic
�B’ Mono Mic Input
�A’ Mono Mic Input
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
Talk
Tally
Channel Off
Ground
Channel On
Cough
nc
nc
(+) in
(-) in
nc
Ground
nc
nc
nc
nc
(+) in
(-) in
nc
Ground
Stop Logic
nc
Logic common
Start Logic
Channel Control Logic (Turrets)
The pins on the �Logic’ connector
are used to remote control the
module for applications such as
studio talk turrets. Controls include
Channel On, Off, Tally LED driver
for on-off status, Talk to Console,
and momentary Cough logic. All
control is by dry closure to ground.
The tally LED should be connected
through a 510 ohm resistor to
ground.
Channel On
Channel Off
On-off Tally LED
Talk to Console
Cough
Ground
4.15
IN S TA LLA TION IN S TRUCTION S
Stereo Line Level Input Module Wiring
Channel Control Logic (Turrets)
The pins on the �Logic’ connector are used to remote control the module for applications such as studio talk turrets. Controls include Channel On, Off, Tally LED driver for on-off status, Talk to Console, and
momentary Cough logic. All control is by dry closure to ground. The
tally LED should be connected through a 510 ohm resistor to ground.
Connectors
Logic �B’ �A’
�B’
input
�A’
input
Channel On
Channel Off
A/B
On-off Tally LED
Pgm
Talk to Console
Aud
Cough
Utl
Ground
Cue
Source Control Logic
The logic controls (1) Stop Logic, (2) Start Logic, and (3) Logic common are momentary closures from a dry contact reed relay (max current = 50 milliamps). They are available for start and stopping source
devices like CD players
Start logic
Common
Stop Logic
EIA/TIA 568B WIRING STANDARD COLORS
PIN
Wire Color
Audio
1
White w/Orange Stripe
Left (+)
2
Orange w/White Stripe
Left (-)
3
White w/Green Stripe
Right (+)
4
Blue w/White Stripe
Ground
5
White w/Blue Stripe
6
Green w/White Stripe
Right (-)
7
White w/Brown Stripe
8
Brown w/White Stripe
1,2,3,4,5,6,7,8
Line
RJ45
2) Stereo Line Input module (MARC-STL)
Logic
�B’ Stereo Line Input
�A’ Stereo Line Input
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
Talk
Tally
Channel Off
Ground
Channel On
Cough
nc
nc
Left (+) in
Left (-) in
Right (+) in
Ground
nc
Right (-) in
nc
nc
Left (+) in
Left (-) in
Right (+) in
Ground
Stop Logic
Right (-) in
Logic common
Start Logic
4.16
IN S TA LLA TION IN S TRUCTION S
The PC-USB input Module Wiring
Connectors
Logic Rec USB
The RJ45 connector titled �RS232 Logic’ wires to a 9 pin RS232 D-sub connector as illustrated below
9 Pin RS232
1 nc
2 Pin 1 RJ45
3 nc
4 nc
5 nc
6 Pin 2 RJ45
7 nc
8 nc
9 Pin 3 RJ45
Rec
ord
Pgm
Aud
Utl
Cue
EIA/TIA 568B WIRING STANDARD COLORS
PIN
Wire Color
Audio
1
White w/Orange Stripe
Left (+)
2
Orange w/White Stripe
Left (-)
3
White w/Green Stripe
Right (+)
4
Blue w/White Stripe
Ground
5
White w/Blue Stripe
6
Green w/White Stripe
Right (-)
7
White w/Brown Stripe
8
Brown w/White Stripe
1,2,3,4,5,6,7,8
PC USB
RJ45
4) PC USB module (MARC-USB)
RS232 Logic
Record Input
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
Record Logic
Ch On-off logic
Ground
Ground
nc
nc
nc
nc
USB Connector
Left (+) in
Left (-) in
Right (+) in
Ground
nc
Right (-) in
nc
nc
4.17
IN S TA LLA TION IN S TRUCTION S
The Telephone Input Module Wiring
Connectors
Logic Out In
a) CONSOLE PHONE INPUT- A telephone hybrid has an audio input and an audio output. The hybrid audio
output is the callers voice and is connected to the input on the phone module.
Output
trim
b) CONSOLE MIX MINUS OUTPUT- The input to the hybrid is from the console PHONE OUT connector on the
back of the module. A mix minus bus is a special audio mixing bus that contains all audio on the console bus
MINUS the callers voice. In this way the caller hears everything except himself. If he was not “minused”
from the mix, then the caller would feed back to himself.
Input
trim
Off
line
c) CONTROL LOGIC- The hybrid has two ways to “answer” the caller and pick up the telephone line: front
panel manual control of the hybrid itself and remote control. For manual control, an On and Off button will be
located on the front panel of the hybrid. For remote control, the PHONE LOGIC module connector (RJ45)
must have a custom cable connecting it to the console source start/stop logic. The logic is dry reed relay
closures for both Start and Stop as shown below.
Pgm
Aud
Utl
Cue
d) CALIBRATION- The console PHONE IN and PHONE OUT connectors are set for +4dBu levels. These connectors have trim pots on the top of the module
EIA/TIA 568B WIRING STANDARD COLORS
PIN
Wire Color
Audio
1
White w/Orange Stripe
Left (+)
2
Orange w/White Stripe
Left (-)
3
White w/Green Stripe
Right (+)
4
Blue w/White Stripe
Ground
5
White w/Blue Stripe
6
Green w/White Stripe
Right (-)
7
White w/Brown Stripe
8
Brown w/White Stripe
IMPORTANT
Two phone modules can be
placed in a single mainframe.
They are...
1) MARC-PHN1
2) MARC-PHN2
1,2,3,4,5,6,7,8
Two PHN1s or two PHN2 modules should not be used in the
same mainframe
RJ45
Phone
3) Phone Input module (MARC-PHN)
Logic
Phone module out
Phone module In
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
Talk
Tally
Channel Off
Ground
Stop Logic
Channel On
Logic common
Start Logic
(+) out
(-) out
nc
Ground
nc
nc
nc
nc
4.18
(+) in
(-) in
nc
Ground
Stop Logic
nc
Logic common
Start Logic
PHONE MODULE NOTE:
The logic controls (1) Stop Logic,
(2) Start Logic, and (3) Logic common are momentary closures from
a dry contact reed relay (max current = 50 milliamps). They are available on the �Phone module in’ and
�Logic’ connectors for connection to
the hybrid.
Start logic
Common
Stop Logic
IN S TA LLA TION IN S TRUCTION S
The Studio Monitor Module Wiring
Connectors
MUTE LOGIC
The �Mute Logic’ is a dry contact sustained reed relay closure with a max
current of 50 milliamps. The closure should be used to drive an external
lamp driver (not drive a lamp directly).
Hdp Mon Ext
Ext1
Pgm
Aud
Utl
Talk to
Studio
EIA/TIA 568B WIRING STANDARD COLORS
PIN
Wire Color
Audio
1
White w/Orange Stripe
Left (+)
2
Orange w/White Stripe
Left (-)
3
White w/Green Stripe
Right (+)
4
Blue w/White Stripe
Ground
5
White w/Blue Stripe
6
Green w/White Stripe
Right (-)
7
White w/Brown Stripe
8
Brown w/White Stripe
1,2,3,4,5,6,7,8
RJ45
Studio
5) Studio Monitor Board (MARC-STM)
Earphone Output
Monitor Output
External Monitor In
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
Left (+) out
Left (-) out
Right (+) out
Ground
nc
Right (-) out
Mute Logic
Mute Logic
Left (+) out
Left (-) out
Right (+) out
Ground
nc
Right (-) out
nc
nc
4.19
Left (+) in
Left (-) in
Right (+) in
Ground
nc
Right (-) in
nc
nc
IN S TA LLA TION IN S TRUCTION S
PC Setup
The MARC-15 PC-USB input modules have a built in sound card. This enables the console to play audio directly from a Windows
PC using Arrakis Digilink-Xtreme software. The console can play audio from the PC, record audio to the PC, and control the
start and stop of play on the PC.
RECOMMENDED OPERATING SYSTEM
The minimum PC operating system is Windows XP or VISTA. Windows XP is currently the recommended operating system
CONNECTIONS
The PC is connected to the console by:
1) USB cable (USB 1 or USB 2)
2) RS232 serial port cable (or RS232 to USB converter, contact the factory for recommended products)
3) Audio cable
LAPTOP OR DEKTOP PC
INSTALLING & OPERATING THE SOFTWARE
refer to the that section in this manual
PC LINE OUT
RS232
CONTROL
PORT
9 PIN
SERIAL
CABLE
AUDIO CABLE WITH
1/8" PHONE JACKS
CUE
IN
PC USB module (MARC-USB)
RS232 Logic
Record Input
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
Record Logic
Ch On-off logic
Ground
Ground
nc
nc
nc
nc
USB
cable
EIA/TIA 568B WIRING STANDARD COLORS
PIN
Wire Color
Audio
1
White w/Orange Stripe
Left (+)
2
Orange w/White Stripe
Left (-)
3
White w/Green Stripe
Right (+)
4
Blue w/White Stripe
Ground
5
White w/Blue Stripe
6
Green w/White Stripe
Right (-)
7
White w/Brown Stripe
8
Brown w/White Stripe
USB Connector
Left (+) in
Left (-) in
Right (+) in
Ground
nc
Right (-) in
nc
nc
1,2,3,4,5,6,7,8
USB NOTE:
The RJ45 connector titled �RS232
Logic’ wires to a 9
pin RS232 D-sub
connector as illustrated at the right
IF YOUR PC DOES NOT HAVE AN RS232 PORT
9 Pin RS232
1 nc
2 Pin 1 RJ45
3 nc
4 nc
5 nc
6 Pin 2 RJ45
7 nc
8 nc
9 Pin 3 RJ45
such as: IOGEAR GUC232A
RS232 to USB adapter
RJ45
ARC RS232 PORT
ARC CH 9 USB PORT
4.20
USB
HUB
PC USB PORT
IN S TA LLA TION IN S TRUCTION S
ARC-16SW 16 in X 3 out Remote Selector for the MARC-15
Adding more Inputs to the MARC-15 Console
For applications requiring more than the 30 inputs supported by the MARC-15, the ARC-16SW provides up to 16 more stereo inputs that can be selectable
to any 3 console channels. The switcher features balanced inputs that are all trim pot adjustable from consumer levels (-10dBu) to professional levels
(+4dBu).
The ARC-16SW
The ARC-16SW is a custom configuration of the Arrakis BROADCAST DOCKING STATION. The BROADCAST AUDIO DOCKING STATION is a multipurpose product
with applications that vary depending on the firmware loaded into the hardware and the PC software used to control it. In the ARC-16SW application the
firmware in the hardware is internally configured to support only the 16 x 3 router functions.
PC Control
The ARC-16SW is controlled via RS232 serial cable from a PC computer. While the console does not have direct control of the switcher from its front panel,
the PC software adds ease of use and flexibility with on screen labeling, support of touch screen monitors, and much more.
Network control from ANY Studio
Client/Server software comes standard with the ARC-16SW so you can view and control the switcher from ANY Windows PC computer on the network in
your station.
PC Configuration
The ARC-16SW supports both Windows XP and Windows VISTA for control. The computer must have an RS232 serial cable or a USB to serial converter.
Contact the factory for suggested converters.
16 Stereo Sources
Control the Switcher
by Windows PC
software
LGC IN3
SAT LGC3
CUE
CH 16
CH 13
CH 10
CH 7
CH 4
CH 1
REC LGC
LGC IN1
SAT LGC1
SUM IN
CH 14
CH 11
CH 8
CH 5
CH 2
SAT LGC2
PGM
CH 15
CH 12
CH 9
LGC OUT
LGC IN2
PGM
LFT
CUE
LFT
PGM
RGT
CUE
RGT
EXT
RGT
CH 16
RGT
Broadcast Docking Station III
EXT
LFT
CH 15
RGT
Professional PC to Broadcast Audio Interface
REC
RGT
RS232
COM
USB
CH 13
RGT
HEAD
PHN
CH13
LFT
CH 14
LFT
CH 16 CH 14
RGT
LFT
CH15
LFT
CH 10
RGT
CH 11
RGT
CH 12
RGT
CH10
LFT
CH 11
LFT
CH 12
LFT
CH 7
RGT
CH 8
RGT
CH 9
RGT
CH 8
LFT
CH9
LFT
PC 2
RGT
REC
LFT
PC
REC
OUT
PC
TWO
IN
PC
ONE
IN
CH 3
CH 6
CH 4
RGT
CH7
LFT
CH 5
RGT
CH 6
RGT
PC 2
LFT
CH 4
LFT
CH 5
LFT
CH 6
LFT
CH 1
RGT
CH 3
RGT
CH 1
LFT
CH 2
LFT
CH 2
RGT
CH 3
LFT
PC 1 PC 1
RGT LFT
DC
PWR
3 stereo Outputs
IF YOUR PC DOES NOT HAVE AN RS232 PORT
such as: IOGEAR GUC232A
RS232 to USB adapter
ARC RS232 PORT
ARC CH 9 USB PORT
USB
HUB
PC USB PORT
4.21
IN S TA LLA TION IN S TRUCTION S
ARC-16SW Software
Push button Array for Manual Control
FEATURES
Client/Server network control from ANY studio
Manual Pushbutton control of 16 inputs & 3 outputs
Customized Labeling of all Inputs & Outputs
Source lockout to prevent feedback
Touchscreen size buttons
One Week Source Automation play list
Copy & Paste Hour and Day schedules
Play log for reconciliation
Emergency Silence Sensor on Main Output
Programmable delay time
One Week Automation Play List
Automatically switches to a Backup source channel w relay
4.22
IN S TA LLA TION IN S TRUCTION S
ARC-16SW 16 in X 3 out Remote Selector for the MARC-15
SWITCHER WIRING
a) WHITE MOLEX CONNECTORS
As viewed looking down on the switcher .
Pin 7 is engraved on the connector housing. Pins are .090"
NOTE:
the BROADCAST AUDIO DOCKING STATION is a multipurpose
product with applications that vary depending on the firmware loaded
into the hardware and the PC software used to control it. In the ARC16SW application the firmware in the hardware is internally configured
to support only the 16 x 3 router functions. Therefore the logic and
other connectors that support other functions should be ignored.
_/\_/\_/\_
| 1 2 3 |
| 4 5 6 |
| 7 8 9 |
------------
b) DESCRIPTION
The switcher has active balanced audio inputs & outputs to the switcher. The pin out is shown below. Each of the 16 inputs, the Program output, and Cue output has a trim pot level adjust. The balanced Record output is a fixed level, however the Record output also
has an unbalanced 1/8" headphone jack output with trim pot. Gain is increased by turning the trimpot counterclockwise. Levels are
set from the factory for +4dBm input and output. Only a qualified technician with appropriate test equipment should adjust the levels.
c) IMPORTANT
none of the audio outputs should be grounded. Grounding an audio output will result in the destruction of the audio output driver IC.
d) �CHANNEL 1' to �CHANNEL 16' Input Connectors
1) Audio ground
2) Right + input
3) Right - input
4) na
5) Left + input
6) Left - input
7) na
8) na
9) na
e) �PROGRAM’ Connector (Program Output)
1) Audio ground
2) Right - input
3) Right + input
4) Start relay to pin 9 (momentary)
5) Left - input
6) Left + input
7) na
8) na
9) na
f) �CUE’ Connector (Cue & Record outputs)
1) Audio ground
2) Cue Right - output
3) Cue Right + output
4) Record R - output
5) Cue Left - output
6) Cue Left + output
7) Record Right + output
8) Record Left - output
9) Record Left + output
Program
Output
Cue & Record
Output
LGC IN3
SAT LGC3
CUE
CH 16
CH 13
CH 10
CH 7
CH 4
CH 1
REC LGC
LGC IN1
SAT LGC1
SUM IN
CH 14
CH 11
CH 8
CH 5
CH 2
SAT LGC2
PGM
CH 15
CH 12
CH 9
CH 6
CH 3
LGC OUT
LGC IN2
PGM
LFT
CUE
LFT
PGM
RGT
CUE
RGT
EXT
RGT
CH 16
RGT
Broadcast Docking Station III
EXT
LFT
HEAD
PHN
CH13
LFT
CH 14
LFT
CH 16 CH 14
RGT
LFT
REC
RGT
USB
CH 13
RGT
CH 15
RGT
Professional PC to Broadcast Audio Interface
RS232
COM
Inputs
1-16
CH15
LFT
CH 10
RGT
CH 11
RGT
CH 12
RGT
CH10
LFT
CH 11
LFT
CH 12
LFT
CH 8
RGT
CH 9
RGT
CH 8
LFT
CH9
LFT
PC 2
RGT
REC
LFT
PC
REC
OUT
PC
TWO
IN
PC
ONE
IN
CH 4
RGT
CH7
LFT
CH 7
RGT
CH 5
RGT
CH 6
RGT
PC 2
LFT
CH 4
LFT
CH 5
LFT
CH 6
LFT
CH 1
RGT
CH 2
LFT
CH 2
RGT
CH 3
RGT
CH 1
LFT
CH 3
LFT
PC 1 PC 1
RGT LFT
DC
PWR
Unbalanced Record output
(1/8" headphone jack)
BROADCAST AUDIO DOCKING STATION
4.23
IN S TA LLA TION IN S TRUCTION S
Basic Calibration
WARNING
The console has been calibrated at the factory to normal +4dBu levels and should not require field calibration. Usually, it is better
to adjust the level out of the source device than to adjust the console trim levels. That is so that the source can be plugged into
any module without requiring recalibration of the module. Field calibration should only be done with proper test equipment and by a
qualified audio technician.
a) INPUT SOURCE MODULE LEVEL ADJUST
Trimpots for all input module levels are located under the meter panel. These are provided for convenience in adjusting levels to
match an unusual source device. In general, it is highly recommended to adjust the level out of the source device to match +4dBu
rather than adjusting the trim level for the module. That is so that the source can be plugged into any module without requiring
recalibration of the module.
1) MIC MODULE: a trimpot is located under the meter panel for both the �A’ and �B’ mic inputs. These trim pots are set at the factory for typical microphone gain levels. These trim pots can be adjusted if different mic gains are required. To adjust, the simplest
method is to speak into the mic and adjust the trim pot with a small straight edge screwdriver until the desired gain is reached.
2) STEREO LINE MODULE: left and right trimpots are located under the meter panel for both the �A’ and �B’ inputs. The trimpots
adjust level from -16dBu to +22dBu. They are set at the factory for +4dBu balanced. It is highly recommended to adjust the level
out of the source device to match +4dBu rather than adjusting the trim level for the module. That is so that the source can be
plugged into any module without requiring recalibration of the module.
3) PC-USB MODULE: there are no trimpots on the PC-USB module. This is because the audio levels are determined by the PC software. The analog record input is calibrated for +4dBu so that it can be fed by any of the three main buses: Pgm, Aud, or Utl.
4) PHONE MODULE: input and output level trimpots are located under the meter panel. The trimpots adjust level from -16dBu to
+22dBu. They are set at the factory for +4dBu balanced. It is highly recommended to adjust the level out of the source device to
match +4dBu rather than adjusting the trim level for the module. That is so that the source can be plugged into any phone module
without requiring recalibration of the module.
b) OUTPUT MODULE LEVEL ADJUST
Output module level adjustments are NOT provided on the front of the output module, under the meter panel. This is because these
levels are critical to maintain headroom in the console and are factory set for maximum console performance. The output levels
are set at the standard +4dBu balanced. If the station uses a different level such as +0dBu, it is recommended to contact the factory where the +0dBu level will be calibrated at the factory before it ships.
1) PGM, AUD, UTL BUS LEVELS: The level trimpots are on the back of the output module so that field calibration can be accomplished by a qualified technician with appropriate test equipment. The default factory level is +4dBu.
2) MONITOR, HEADPHONE OUTPUTS: The level trimpots are on the back of the output module so that field calibration can be
accomplished by a qualified technician with appropriate test equipment. The default factory level is +4dBu.
3) EXT1 INPUT TO MONITOR SELECTOR SWITCH: The level trimpots are on the back of the output module so that field calibration
can be accomplished by a qualified technician with appropriate test equipment. The default factory level is +4dBu.
c) VU METER ADJUSTMENT
The VU meters are factory set for +4dBu at 0VU. These levels should not be changed from factory settings unless directed by factory service technicians. The trimpots are located on VU meter driver boards in the VU meter panel.
4.24
IN S TA LLA TION IN S TRUCTION S
Output Bd Calibration
Output module level adjustments are
NOT provided on the front of the output
module, under the meter panel. This is
because these levels are critical to
maintain headroom in the console and
are factory set for maximum console
performance. The output levels are set
at the standard +4dBu balanced. If the
station uses a different level such as
+0dBu, it is recommended to contact
the factory where the +0dBu level will
be calibrated at the factory before it
ships.
HP R HP L MON R
MON L
Remove the jumper to defeat audio
into the meter panel cue speaker
Talkback input
EXT In R
Utl mono
EXT In L
Utl Right
Utl Left
Aud mono
Aud Right
Aud Left
Pgm mono
Pgm Right
Pgm Left
4.25
IN S TA LLA TION IN S TRUCTION S
Input board Jumper Setup
Source Input modules have pin jumpers on the PC board
for rarely used module setup. The factory default is
correct 90% of the time. The factory will set these
jumpers to meet custom configurations if requested
when the order is placed.
a) Mic Module Phantom Power (Mic module only)
Add a jumper if the mic being used is a condenser mic
that requires 48VDC phantom power.
Mic Module (only)
Phantom Power
�A’ input
�B’ input
The factory default is for NO jumpers to be in place.
b) Muting Assignments (Mic & Line modules only)
If the module is a mic module or the module is a line
module being fed by a mic preamp, then a muting jumper must be placed on the module. This is to eliminate
feedback from the monitor speakers to the mic. If the
mic is in the control room with the console, then the
Control Room muting jumper must be in place. If the mic
is in the studio, then the Studio jumper must be in place.
A jumper should not be placed on both the Control Room
and Studio pins.
The factory default is for all mic modules to be shipped
with the Control room muting jumper in place.
Mic & Line (only)
Muting
Control room
Studio
Mic & Line (only)
CR Mic assign
c) Control Room Mic Assigment (Mic & Line only)
This jumper assigns the module as the control room mic
that will feed the phone talk and studio monitor talk systems. Only ONE module per mainframe should have this
jumper.
All modules
Timer Reset
The factory default is for the first mic in the mainframe
to have this jumper in place.
d) Timer Reset Assignment (All input modules)
If the timer is in AUTO mode, his jumper causes the
timer to reset to zero when this module is turned on.
The factory default is for all non-mic channels to have
this jumper in place.
4.26
IN S TA LLA TION IN S TRUCTION S
INPUT OUTPUT WIRING SUMMARY
1) Mono Mic Input module (MARC-MIC)
MIC & STEREO LINE MODULES
Logic
�B’ Mono Mic Input
�A’ Mono Mic Input
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
Talk
Tally
Channel Off
Ground
Channel On
Cough
nc
nc
(+) in
(-) in
nc
Ground
nc
nc
nc
nc
(+) in
(-) in
nc
Ground
Stop Logic
nc
Logic common
Start Logic
Channel Control Logic (Turrets)
The pins on the �Logic’ connector
are used to remote control the
module for applications such as
studio talk turrets. Controls include
Channel On, Off, Tally LED driver
for on-off status, Talk to Console,
and momentary Cough logic. All
control is by dry closure to ground.
The tally LED should be connected
through a 510 ohm resistor to
ground.
Channel On
Channel Off
2) Stereo Line Input module (MARC-STL)
On-off Tally LED
Talk to Console
Logic
�B’ Stereo Line Input
�A’ Stereo Line Input
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
Talk
Tally
Channel Off
Ground
Channel On
Cough
nc
nc
Left (+) in
Left (-) in
Right (+) in
Ground
nc
Right (-) in
nc
nc
Left (+) in
Left (-) in
Right (+) in
Ground
Stop Logic
Right (-) in
Logic common
Start Logic
Logic
Phone module out
Phone module In
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
(+) out
(-) out
nc
Ground
nc
nc
nc
nc
Ground
Source Control Logic
The logic controls (1) Stop Logic, (2)
Start Logic, and (3) Logic common are
momentary closures from a dry contact reed relay (max current = 50
milliamps). They are available for start
and stopping source devices like CD
players
Start logic
Common
Stop Logic
3) Phone Input module (MARC-PHN)
Talk
Tally
Channel Off
Ground
Stop Logic
Channel On
Logic common
Start Logic
Cough
(+) in
(-) in
nc
Ground
Stop Logic
nc
Logic common
Start Logic
PHONE MODULE NOTE:
The logic controls (1) Stop Logic,
(2) Start Logic, and (3) Logic common are momentary closures from
a dry contact reed relay (max current = 50 milliamps). They are
avaliable on the �Phone module in’
and �Logic’ connectors for connection to the hybrid.
Start logic
Common
Stop Logic
4) PC USB module (MARC-USB)
RS232 Logic
Record Input
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
Record Logic
Ch On-off logic
Ground
Ground
nc
nc
nc
nc
USB Connector
Left (+) in
Left (-) in
Right (+) in
Ground
nc
Right (-) in
nc
nc
4.27
USB NOTE:
The RJ45 connector titled �RS232
Logic’ wires to a 9
pin RS232 D-sub
connector as illustrated at the right
9 Pin RS232
1 nc
2 Pin 1 RJ45
3 nc
4 nc
5 nc
6 Pin 2 RJ45
7 nc
8 nc
9 Pin 3 RJ45
IN S TA LLA TION IN S TRUCTION S
INPUT OUTPUT WIRING SUMMARY (continued)
5) Studio Monitor Board (MARC-STM)
Earphone Output
Monitor Output
External Monitor In
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
Left (+) out
Left (-) out
Right (+) out
Ground
nc
Right (-) out
Mute Logic
Mute Logic
Left (+) out
Left (-) out
Right (+) out
Ground
nc
Right (-) out
nc
nc
Left (+) in
Left (-) in
Right (+) in
Ground
nc
Right (-) in
nc
nc
NOTE
The �Mute Logic’ is a dry contact
sustained reed relay closure with
a max current of 50 milliamps.
The closure should be used to
drive an external lamp driver (not
drive a lamp directly).
6) Output Board (MARC-OB)
Main Console Outputs
Monitor Inputs and Outputs
to Meter Panel
A) Main Console Outputs
Program Output
Audition Output
Utility Output
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
Left (+) out
Left (-) out
Right (+) out
Ground
nc
Right (-) out
Mono out (+)
Mono out (-)
Left (+) out
Left (-) out
Right (+) out
Ground
nc
Right (-) out
Mono out (+)
Mono out (-)
Left (+) out
Left (-) out
Right (+) out
Ground
nc
Right (-) out
Mono out (+)
Mono out (-)
NOTE
The �Mute Logic’ is a dry contact
sustained reed relay closure with
a max current of 50 milliamps.
The closure should be used to
drive an external lamp driver (not
drive a lamp directly).
B) Monitor Inputs & Outputs
NOTE: to activate Autocue
for talkback,
connect pin 5
(12V) to pin 6
(logic) with a
dry contact closure.
Miscellaneous IO
Monitor Output
Earphone Output
External Monitor In
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
Mute Relay
Mute Relay
Cue input
nc
Talkback (12V)
Talkback (Logic)
(+) Talkback in
(-) Talkback in
Left (+) out
Left (-) out
Right (+) out
Ground
nc
Right (-) out
nc
nc
4.28
Left (+) out
Left (-) out
Right (+) out
Ground
nc
Right (-) out
Cue Out (to amp)
nc
Left (+) in
Left (-) in
Right (+) in
Ground
nc
Right (-) in
Left -10dBu input
Right -10dBu input
IN S TA LLA TION IN S TRUCTION S
13.0 Analog Audio Wiring
The following sections assume twisted pair, shielded audio cable for all analog wiring. The
illustrations demonstrate how to wire balanced and unbalanced analog devices in various
configurations.
13.1 Balanced Source Output to Balanced Console Input
Balanced inputs and outputs are the best method to reject hum
ACTIVE BALANCED
AUDIO SOURCE
CONSOLE
INPUT
(+)
(+)
(-)
(-)
SHIELD
CHASSIS
GROUND
13.2 Unbalanced Source Output to Balanced Console Input
Use this wiring method for low noise connection of an unbalanced audio source to a balanced
input on a console.
ACTIVE UNBALANCED
AUDIO SOURCE
CONSOLE
INPUT
Signal
Electronic
Ground
(+)
(-)
SHIELD
CHASSIS
GROUND
4.29
IN S TA LLA TION IN S TRUCTION S
13.3 Transformer Balanced Output to Balanced Console Input
Transformer sources require a fixed impedance for proper performance. The console input impedance
is high compared to the impedance of most transformers and will require a resistor to match the transformer.
600 ohm
matching resistor
TRANSFORMER BALANCED
AUDIO SOURCE
CONSOLE
INPUT
(+)
(+)
(-)
(-)
Zin > 10k
ohms
SHIELD
CHASSIS
GROUND
13.4 Microphone to Balanced Console Input
The input impedance of microphone preamps is high compared to the characteristic impedance of many microphones. Most microphones do not require impedance matching. Refer to
the microphone spec sheet to determine if impedance matching is recommended. If required,
the resistor should be added as illustrated below.
Stereo microphones will require an outboard stereo mic preamp and then be brought in
to the console on a stereo line input channel.
IMPORTANT- High voltage static discharges to the mic case can ruin a mic preamp’s input
stage. Room carpets and surfaces should be chosen for low static or treated to reduce static.
MICROPHONE
150 ohm typical
matching resistor
CONSOLE
INPUT
(+)
(+)
(-)
(-)
SHIELD
CASE
GROUND
4.30
Zin > 1k
ohm
SHIELD GND
IN S TA LLA TION IN S TRUCTION S
13.5 Use of an Isolation Transformer to convert an Unbalanced
Source into a Balanced Source
In some situations, an isolation transformer is required for RF or ground loop isolation where
the source output is unbalanced. The isolation transformer must be impedance matched to
BOTH the source and the console.
To perform the matching, you must refer to the data sheet for the source device and find the
output impedance. That will be Rseries as shown in the diagram. Select an audio isolation
transformer with a specified impedance. The transformer impedance will be (Ztransformer)
Rseries = Ztransformer - Rsource
Rconsole = Ztransformer
ACTIVE
UNBALANCED
AUDIO SOURCE
Source Output impedance
(Rsource)
ISOLATION
TRANSFORMER
Source Output
Matching Resistor
(Rseries)
CONSOLE
INPUT
Isolation Transformer
Impedance
(Ztransformer)
Signal
Electronic
Ground
(+)
(+)
(-)
(-)
SHIELD
CHASSIS
GROUND
4.31
Console input
matching resistor
(Rconsole)
Zin > 10k
ohms
IN S TA LLA TION IN S TRUCTION S
13.6 Console Balanced Output to Balanced Input
Balanced inputs and outputs are the best method to reject hum
CONSOLE
OUTPUT
ACTIVE BALANCED
AUDIO INPUT
(+)
(+)
(-)
(-)
Zin > 10k
ohms
SHIELD
CHASSIS
GROUND
13.7 Console Balanced Output to Unbalanced Input
Use this wiring method for low noise connection of an unbalanced audio source to a balanced output on a console.
ACTIVE UNBALANCED
AUDIO SOURCE
CONSOLE
OUTPUT
(+)
Signal
(-)
Electronic
Ground
Electronic
Ground
CHASSIS
GROUND
SHIELD
IMPORTANT- Notice that the (-) output
of the console is not connected to anything. The most common reason for output IC failure and for crosstalk is grounding unused balanced output drivers.
4.32
IN S TA LLA TION IN S TRUCTION S
13.8 Console Balanced Output to Transformer Input
Transformer sources require a fixed impedance for proper performance. The console output impedance is low
compared to the impedance of most transformers and will require a resistor to match the transformer.
Rseries = (Ztransformer / 2) - Rconsole
BALANCED
CONSOLE OUTPUT
Console Output impedance
(Rconsole)
AUDIO
INPUT
Console Output
Matching Resistor
(Rseries)
input Transformer
Impedance
(Ztransformer)
(+)
(+)
(+)
(-)
(-)
(-)
SHIELD
CHASSIS
GROUND
13.9 Console Balanced Output to Isolation Transformer Unbalanced Input
Transformer sources require a fixed impedance for proper performance. Matching resistors are required as illustrated below.
Rseries = (Ztransformer / 2) - Rconsole
Rsource = Ztransformer
BALANCED
CONSOLE
OUTPUT
Console Output impedance
(Rconsole)
(+)
(+)
(-)
(-)
ISOLATION
TRANSFORMER
Console Output
Matching Resistor
(Rseries)
ACTIVE
UNBALANCED
AUDIO INPUT
Isolation Transformer
Impedance
(Ztransformer)
Source input
matching resistor
(Rsource)
Signal In
Electronic
Ground
(-)
SHIELD
Zin > 10k
ohms
CHASSIS
GROUND
4.33
IN S TA LLA TION IN S TRUCTION S
Ground Loops
a) A GROUND LOOP CAUSES 60 CYCLE HUM
A ground loop exists when there is more than one ground path between two pieces of electronic equipment. The two ground paths form a large loop antenna which picks up noise currents, particularly 60 cycle AC. The resistance in the ground paths converts these currents into
fluctuating noise voltage differentials between the two pieces of equipment. If there is an audio
signal connection between these two pieces of equipment then this noise is added to the signal voltage.
AUDIO
PRODUCT 1
The most common
Ground Loop is caused
by shield grounds connected at both ends and
the 3rd wire AC safety
ground
GROUND PATH #1 THROUGH SHIELD
AUDIO
PRODUCT 2
SHIELD
GROUND PATH #2 THROUGH AC GROUND
MAIN AC
POWER
BOX
CHASSIS
GROUND
EARTH
GROUND
SIGNA;L
GROUND
EARTH
GROUND
b) REMOVE THE GROUND LOOP BY BREAKING THE LOOP (Full Ground Lift)
To stop the 60 cycle hum, one of the ground paths must be removed. The typical method
to remove the second ground path is to have the shield grounded on one end only.
c) PARTIAL GROUND LIFT
Sometimes it is possible to insert a 50-100 ohm resistor between the shield and ground.
This will allow the ground to remain connected for audio signal flow but increase the impedance to break the ground loop. This may reduce the problem but will not fix it.
d) EQUIPMENT WITH A GROUND LIFT SWITCH
In some equipment, the ground is part of the connector assembly and a switch is provided
to disconnect the ground. If no switch is provided, then a standard cable may need to be
modified or a custom cable built with modifications to the shield ground.
4.34
IN S TA LLA TION IN S TRUCTION S
Ground Loops (continued)
e) BREAKING A GROUND LOOP WITH AN AUDIO ISOLATION TRANSFORMER
In cases where the ground loop can not be broken due to a 3rd wire safety ground as the second part of the ground loop, an audio isolation transformer can be inserted into the audio signal line. This can be required in unbalanced audio connections with signal and ground. The
use of transformers may not be desirable, but is sometimes the best solution.
f) BREAK A GROUND LOOP WITH A BALANCED INPUT
If a ground loop is being completed by the ground in an unbalanced device, it is possible to
break the loop by taking the ground of the audio output into the balanced input of another
device. If it is not possible to use a transformer to break a ground loop then a balanced distribution amp is a possible solution.
UNBALANCED
AUDIO OUTPUT
WRONG
ACTIVE BALANCED
AUDIO INPUT
Signal
(+)
Ground
(-)
SHIELD
Ground
CHASSIS
GROUND
UNBALANCED
AUDIO OUTPUT
CORRECT
ACTIVE BALANCED
AUDIO INPUT
Signal
(+)
Ground
(-)
SHIELD
CHASSIS
GROUND
4.35
Ground
DHD-LIVE FOR
THE MARC CONSOLE
5.0
Getting Started
Included with an ARC series console (with a USB channel) is a free copy of DHD-Live. This software is the ultimate live assist tool for anyone
who wants to put on a dynamic and powerful live show. It includes features that give you unprecedented customization and flexibility. We are
confident that you will love this software.
This software is intended only for Live Assist. This means that it will not be capable of playing unattended such as with an Automation product
like Digilink-HD. If you are looking for a full featured automation system that can play unattended, please consider one of our automation
product, such as Digilink-HD, Digilink-Xtreme or New~Wave. Visit our website for more details.
Installation
An install CD was included in the install kit of your console. Put this CD into your computer’s CD-ROM drive. This CD will contain a full copy of
the DHD-Live manual and an install EXE program. Double click on the install program to install. All files will be installed to the C:DHD folder. To
uninstall, simply delete the C:DHD folder.
This software, along with the latest version of the Operations Manual can always be found on our website for download.
Updates
The DHD-Live software and training material will be updated on a regular basis, without notice. Please visit our website to get the latest
updates.
Support
DHD-Live software for the ARC console is provided at no charge and does not include the cost of telephone support.
The software is specifically designed to be easy to use for people with average PC computer and radio industry experience.
Support is limited to the product manual and the on screen help system in the software itself. Refer to the Arrakis website at
www.arrakis-systems.com for updated training materials. In a case where telephone support is a necessity, Arrakis has per minute
and per incident support available that can be paid for by valid credit card. For comprehensive support and advanced automation
features, please consider one of our automation product. Refer to the website or contact the factory for details.
Feedback
DHD-Live is an evolving software that will be updated on a regular basis. As such, we greatly appreciate any customer feedback. This may
include reporting issues with the software, or features that you would like to see added. Please visit our website to submit your requests.
To contact one of our support agents, please email:
[email protected]
5.1
S ERVICE & M A IN TEN A N CE
SERVICE & MAINTENANCE
INSTRUCTIONS
6.0
S ERVICE & M A IN TEN A N CE
General Repair Considerations
WARNING
The console should be repaired by qualified, professional, & experienced, audio technicians ONLY. Before beginning any type of repair or
opening the console CALL Arrakis customer support for recommendations.
DESIGNED FOR MODULAR PART REPLACEMENT
The MARC-15 console is designed for modular replacement rather than field repair. The power supply is external and plug in. Most ICs are
plug in. The rotary faders, and meters are plug in. A small amount of disassembly is required to reach most parts. Diagrams on the following pages explain the required disassembly.
COMPONENT LEVEL REPAIR SHOULD BE PERFORMED BY THE FACTORY
Detailed schematics are not provided with the MARC-15 console because component level repair should be performed at the factory. A
physical board layout is provided with descriptions of the functions of each IC. ICs can be individually replaced to test for functionality.
POWER SUPPLY
The power supply is a sealed module that must be replaced in whole if there is a problem.
REPEATED EQUIPMENT FAILURES
If a specific part of the console is failing regularly, it is likely that it is being subject to unusual stresses.
Examples are;
(1) Switch or fader failure(2) Mic channel IC failure(3) Input op amp failure(4) Output op amp failure(5) Power Supply failure-
rough physical treatment
static discharge to mic
lightning, power surge, or other transient on this cable
lightning, power surge, or other transient on this cable
lightening, power surge, or other transient on the AC power line
SUGGESTED REPAIR PROCEDURES
(1) NO AUDIO OUT OF ONE INPUT MODULE- (Swap Cables) Be certain that the problem is in the console itself. If mic channel two doesn’t
function but mic channel one functions properly, then plug the cable from the good mic into the channel that you suspect to be bad. If the
channel that you suspect to be bad now functions, then the problem is external to the console and is in the source or the wiring. This is a
very fast and easy way to test your system.
(2) VU METERS MOVE BUT NO AUDIO OUT OF THE CONSOLE- The VU meters measure the actual output of the console itself. If the
meters move but no audio is present, the problem is after the console output and is in the following signal chain. Plug a set of headphones
into the output of the console and listen to the Program output to confirm this.
(3) LOUD LOW FREQUENCY HUM IN AUDIO- Many years ago this would mean a power supply failure. In today’s electronics, this is an
installation problem such as a ground loop. To confirm the problem is not in the console, remove ALL wiring from the console and connect
a pair of headphones to the output you are testing. The hum should be absent. All wiring must be removed and headphones only used. A
very common problem is for an audio power amp and speakers to create the ground loop with the console.
(4) NO AUDIO OUT OF THE MONITORS- Be certain that the monitor system is not muted due to a mic channel being on or talkback being
activated.
6.1
S ERVICE & M A IN TEN A N CE
Opening the Console
WARNING
The console should be repaired by qualified, professional, & experienced, audio technicians ONLY. Before beginning any type of
repair or opening the console CALL Arrakis customer support for recommendations.
1) ACCESSING THE MOTHERBOARDS
The motherboards are accessed by removing the modules from the console.
2) ACCESSING THE INTERIOR OF THE VU METER PANEL
The VU meter panel is opened by removing the screw at the left and right front of the panel.
Arrakis Systems inc.
Program
Audition
Utility
ACCESS SCREWS
6.2
S ERVICE & M A IN TEN A N CE
Removing an Input Module
The input modules have a single bus ribbon cable that connects them to the motherboard. Care should be taken when removing or
reinstalling this cable.
How to Remove an Input Module from the Mainframe
1) Turn all power off to the console
2) Remove the two screws that attach the module to the mainframe
3) Unplug the RJ45 IO cables located at the rear of the module
4) Lift the module up from the mainframe and unplug the 30 wire ribbon cable at the motherboard.Leave the cable plugged in at the
module end.
5) The module is now free.
Motherboard
Main
Bus
Ribbon
Cable
(30
wires)
6.2
Input
Module
S ERVICE & M A IN TEN A N CE
Removing the Studio Monitor Module
The studio monitor module has two bus ribbon cables that connects it to the motherboard. Care should be taken when removing or
reinstalling these cables.
How to Remove a Studio Monitor Module from the Mainframe
1) Turn all power off to the console
2) Remove the two screws that attach the module to the mainframe
3) Unplug the RJ45 IO cables located at the rear of the module
4) Lift the module up from the mainframe and unplug the 30 wire ribbon cable at the motherboard. Leave the cable plugged in at the
module end.
5) Unplug the 10 wire ribbon cable at the motherboard. Leave the cable plugged in at the module end.
6) The module is now free.
Motherboard
Main
Bus
Ribbon
Cable
(30
wires)
Studio
Monitor
Module
6.2
Studio
Monitor
Ribbon
Cable
(10
wires)
Main
Bus
Ribbon
Cable
(30
wires)
Output
Module
S ERVICE & M A IN TEN A N CE
Removing the Output Module
The output module has four cables that connect it to the motherboard and the VU
meter bridge. While none of the cables are interchangeable, care should be taken when
removing or reinstalling these cables.
How to Remove the Output Module from the Mainframe
1) Turn all power off to the console
2) Remove the five screws that attach the module to the mainframe
3) Unplug the RJ45 IO cables located at the rear of the module
4) Lift the module at the rear and unplug the 26 wire ribbon cable to the VU meter
bridge.
5) Lift the module further and unplug the remaining 3 cables where they are plugged
into the motherboard. Leave the three cables plugged into at the module end.
6) The output module is now free.
Reset
Remove
five
mounting
screws
Ext1
Start
Pgm
Stop
Aud
Auto
Utl
Timer
Cue
Head
phone
Monitor
VU Meter
Bridge Cable
Output
Timer
Motherboard
Studio
Monitor
Ribbon
Cable
(10
wires)
VU Meter Bridge ribbon cable
Cue &
Earphone
Power
cable
(+5V &
ground)
Main
Bus
Ribbon
Cable
(30
wires)
6.2
Output
Module
S ERVICE & M A IN TEN A N CE
Replacing Slide Faders
Slide faders are soldered into the individual module PC boards. Replacement of the slide faders can be done by
qualified technicians in the field or the module may be sent into Arrakis for replacement of the fader.
Replacing Rotary Faders
All 3 rotary faders are in a single wiring harness that plugs into
the motherboard. The entire harness should be replaced with all
three pots. Contact the factory for a replacement harness.
REMOVING THE KNOB
KNOB
COVER
To remove a rotary fader
(1) Remove the knob cover as illustrated
(2) Remove the nut and nut plate.
(3) The pot will now remove from the rear of the
front panel.
(4) Unplug the pot from the motherboard.
Pry cover from
top of the Knob
to reveal a lock
nut. Unscrew the
lock nut to remove
the knob
To put a new rotary fader in place:
Reverse the removal procedure
KNOB
LOCK
NUT
Arrakis Systems inc.
A/B
A/B
A/B
A/B
A/B
A/B
A/B
A/B
A/B
A/B
A/B
Rec
ord
Off
line
Off
line
Ext1
Auto
Pgm
Pgm
Pgm
Pgm
Pgm
Pgm
Pgm
Pgm
Pgm
Pgm
Pgm
Pgm
Pgm
Pgm
Pgm
Start
Pgm
Aud
Aud
Aud
Aud
Aud
Aud
Aud
Aud
Aud
Aud
Aud
Aud
Aud
Aud
Aud
Stop
Aud
Utl
Utl
Utl
Utl
Utl
Utl
Utl
Utl
Utl
Utl
Utl
Utl
Utl
Utl
Utl
Reset
Utl
Cue
Cue
Cue
Cue
Cue
Cue
Cue
Cue
Cue
Cue
Cue
Cue
Cue
Cue
Ext1
Timer
Talk to
Studio
Cue
Head
phone
Monitor
Mic 1
PC USB
Mic 2
6.3
Phone 1
Phone 2
Studio
Monitor
Output
Timer
S ERVICE & M A IN TEN A N CE
Replacing ICs
ICs must be replaced with care. Most ICs in the console are socketed so that they can be replaced.
When replacing an IC, be careful to not bend legs under the IC or outside the socket. Be extremely careful to not shock
an IC or the motherboard with a static discharge. In some cases, you must use a grounded arm or anklet if there is a
possibility of a static discharge.
In all cases, retain the old IC because it may not be damaged.
6.4
S ERVICE & M A IN TEN A N CE
Electronic Block Diagram
Mic module
Channel On, Off, Tally
Cough, Talkback
Logic
Trim
A/B
Trim
ON
PGM
Logic
Logic
�A’ in
AUD
UTL
�B’ in
PL-PR-AL-AR-UL-UR-Q-TB
F
A
D
E
R
HEADPHONE JACK
stereo, drives 8 ohm
headphones
PGM
Pwr
UTL
M
U
T
E
A/B
Trim
AUD
ON
PGM
Logic
Logic
UTL
CUE
F
A
D
E
R
FET
SW
Cue Sum
Logic
Cue Logic ->
F
A
D
E
R
Trim
�B’ in
PGM
Trim
Monitor
Selector
AUD
UTL
SW out
balanced, -20 to 10 dBu
PGM
PC USB module
AUD
Stt/Stp
C
O
D
E
C
ON
PGM
Logic
Logic
AUD
UTL
Play
Trim
TALKBACK INPUT
stereo, balanced
(+4 dBu output)
Trim
Air in
AIR MONITOR INPUT
stereo, balanced
(+4 dBu output)
L
O
G
I
C
Pgm in
FET
SW
PGM
Aud in
AUD
UTL
Utl in
CUE
UTL
Logic
F
A
D
E
R
HEADPHONE OUTPUT
stereo, balanced
(-4dBu output)
AIR
Cue
PC PLAY / RECORD
USB connection
to WINDOWS PC
(USB connector)
INTERNAL CUE SPEAKER
in VU meter bridge
Pwr
Trim
Stt/Stp
D
B
9
CONTROL ROOM
MONITOR OUTPUT
stereo, balanced
(-4dBu output)
Trim
F
A
D
E
R
Cue
�A’ in
LOGIC
RS232 serial
connection to PC
(9 pin D-SUB)
M
U
T
E
Pwr
AUD
balanced, -50dBu nom.
Remote start & stop,
Channel On, Off, Tally
Cough, Talkback
CUE
Logic
F
A
D
E
R
Trim
Stereo
Line
module
RJ45 (8 wire)
Trim
PGM
AUD
UTL
Trim
Trim
PGM
Sum
Cue
Trim
PROGRAM OUTPUT
Stereo & Mono
(Balanced = +4 dBu)
Record
Trim
Phone
module 1
INPUT FROM
PHONE HYBRID
balanced,
-20 to 10 dBu
AUD
Sum
Stt/Stp
On-off
Off line
ON
PGM
Logic
Logic
F
A
D
E
R
Trim
AUD
UTL
CUE
Logic
Trim
PGM
Trim
UTL
Sum
AUD
UTL
AUDITION OUTPUT
Stereo & Mono
(Balanced = +4 dBu)
Trim
Cue
OUTPUT TO
PHONE HYBRID
balanced,
-20 to 10 dBu
Trim
PGM
AUD
Trim
Trim
UTL
UTILITY OUTPUT
Stereo & Mono
(Balanced = +4 dBu)
Off
Line
Phone
module 2
Logic
6.5
LOGIC
Control Room Mute
Studio Mute
Dim for Talkback
S ERVICE & M A IN TEN A N CE
Mic Module
Start Relay
The MARC-15 console is designed for modular replacement rather than component level field repair. The console is modular and modules can be replaced for immediate repair. The power supply is external and plug in.
ICs are plug in. The rotary faders are plug in.
For board level part replacement, this page displays a
physical board layout with descriptions of the functions
of each IC. For repair, simply replace the ICs associated
with the function that has failed on the module.
Stop Relay
�A’ input
mic preamp
SSM2019
Pgm/Aud Logic
CD4049
�B’ input
mic preamp
SSM2019
2N3904
relay drivers
A/B Logic
CD4049
Utl/CueLogic
CD4049
A/B analog
switch
CD4052
A/B sum amp
NE5532
Fader amp
NE5532
On-Off Tally Logic
2N3904
Channel
On-off
Logic
CD4049
Cue bus
assign switch
CD4053
Pgm/Aud/Utl bus
assign switch
CD4053
6.6
Pgm/Aud/Utl bus
assign switch
CD4053
S ERVICE & M A IN TEN A N CE
Stereo Line Module
The MARC-15 console is designed for modular
replacement rather than component level field
repair. The console is modular and modules can be
replaced for immediate repair. The power supply is
external and plug in. ICs are plug in. The rotary
faders are plug in.
�A’ input
trimpots
�B’ input
trimpots
�A’ input
preamp
NE5532
For board level part replacement, this page displays
a physical board layout with descriptions of the
functions of each IC. For repair, simply replace the
ICs associated with the function that has failed on
the module.
Pgm/Aud Logic
CD4049
Start Relay
Stop Relay
�B’ input
mic preamp
NE5532
2N3904
relay drivers
A/B Logic
CD4049
Utl/CueLogic
CD4049
A/B analog
switch
CD4052
A/B sum amp
NE5532
Fader amp
NE5532
On-Off Tally Logic
2N3904
Channel
On-off
Logic
CD4049
Cue bus
assign switch
CD4053
Pgm/Aud/Utl bus
assign switch
CD4053
6.7
Pgm/Aud/Utl bus
assign switch
CD4053
S ERVICE & M A IN TEN A N CE
PC-USB module
The MARC-15 console is designed for modular
replacement rather than component level field
repair. The console is modular and modules can be
replaced for immediate repair. The power supply is
external and plug in. ICs are plug in. The rotary
faders are plug in.
For board level part replacement, this page displays
a physical board layout with descriptions of the
functions of each IC. For repair, simply replace the
ICs associated with the function that has failed on
the module.
USB chip
PCM2900
12MHz
clock
Record
input amp
NE5532
�B’ input
mic preamp
SSM2019
Pgm/Aud Logic
CD4049
2N3904
RS232 logic
drivers
A/B Logic
CD4049
Utl/CueLogic
CD4049
Play Filter amp
NE5532
Fader amp
NE5532
Channel
On-off
Logic
CD4049
Cue bus
assign switch
CD4053
Pgm/Aud/Utl bus
assign switch
CD4053
6.8
Pgm/Aud/Utl bus
assign switch
CD4053
S ERVICE & M A IN TEN A N CE
Phone Module
The MARC-15 console is designed for modular
replacement rather than component level field
repair. The console is modular and modules can be
replaced for immediate repair. The power supply is
external and plug in. ICs are plug in. The rotary
faders are plug in.
For board level part replacement, this page displays
a physical board layout with descriptions of the
functions of each IC. For repair, simply replace the
ICs associated with the function that has failed on
the module.
Input
trimpot
Output
trimport
Phone input
preamp
NE5532
Pgm/Aud Logic
CD4049
Start Relay
Stop Relay
Phone output
amp
NE5532
2N3904
relay drivers
A/B Logic
CD4049
Utl/CueLogic
CD4049
A/B analog
switch
CD4052
A/B sum amp
NE5532
Fader amp
NE5532
IMPORTANT
Two phone modules can be placed in
a single mainframe. They are...
1) MARC-PHN1
2) MARC-PHN2
On-Off Tally Logic
2N3904
Channel
On-off
Logic
CD4049
Cue bus
assign switch
CD4053
Pgm/Aud/Utl bus
assign switch
CD4053
Two PHN1s or two PHN2 modules
should not be used in the same mainframe
6.9
Pgm/Aud/Utl bus
assign switch
CD4053
S ERVICE & M A IN TEN A N CE
Studio Monitor Module
The MARC-15 console is designed for modular
replacement rather than component level field
repair. The console is modular and modules can be
replaced for immediate repair. The power supply is
external and plug in. ICs are plug in. The rotary
faders are plug in.
For board level part replacement, this page displays
a physical board layout with descriptions of the
functions of each IC. For repair, simply replace the
ICs associated with the function that has failed on
the module.
Ext 1
Input
trimpots
Ext 1
Input
amp
NE5532
Monitor Left
Output trimpot
Monitor Left
Output amp
NE5532
Monitor Right
Output trimpot
Monitor Right
Output amp
NE5532
Earphone Left
Output amp
NE5532
Earphone Right
Output amp
NE5532
Muting analog
switch
CD4053
Audio input
from Output
Board
Ext/P/A/U
analog switch
CD4052
Quad AND gate
switch logic
74ALS08
Dual AND gate
switch logic
74AC74
Muting
Relay
Muting
Relay driver
2N3904
6.10
S ERVICE & M A IN TEN A N CE
Output Module
The MARC-15 console is designed for
modular replacement rather than component level field repair. The console is
modular and modules can be replaced
for immediate repair. The power supply
is external and plug in. ICs are plug in.
The rotary faders are plug in.
For board level part replacement, this
page displays a physical board layout
with descriptions of the functions of
each IC. For repair, simply replace the
ICs associated with the function that
has failed on the module.
Headphone Output amps
NE5532
Monitor
Output amps
NE5532
Cue
power amp
LM386
Ext 1
Monitor
Input amp
NE5532
Utl Mono mix
Output Amp
NE5532
Talkback
amp
NE5532
Timer logic
Hex inverter
CD4049
Utl Output Amps
NE5532
Timer logic
Quad AND
74ALS08
Monitor
Selector
Logic
Quad AND
74ALS08
Timer logic
Hex inverter
CD4049
Monitor
Selector
Logic
Dual Flip flop
74AC74
Aud Mono mix
Output Amp
NE5532
Aud Output Amps
NE5532
Mute
Relay
Muting
analog
switch
CD4053
Driver
2N3904
Headphone
mix amp
NE5532
Monitor
mix amp
NE5532
Pgm Mono mix
Output Amp
NE5532
Monitor
Selector
Switch
CD4052
Headphone
Autocue
switch
CD4053
Pgm Output Amps
NE5532
Utl mix
NE5532
Headphone
Amps
LM386
Cue Sum
Amp
NE5532
6.11
Aud mix
NE5532
Pgm Sum Aud Sum Utl Sum
Amp
Amp
Amp
NE5532 NE5532 NE5532
Pgm mix
NE5532
Phone Sum Amps
NE5532
S ERVICE & M A IN TEN A N CE
Factory Service
Technical Questions
Arrakis Systems maintains a staff of friendly broadcast engineers, design engineers, and technicians who have many
years of in depth field experience in broadcasting. All of our technical resources are available to you to answer installation questions, solve problems, and repair equipment. If you have a question or problem, please feel free to call us. We
can not solve every problem, but our people are here to try.
Our customer support department is open from:
Voice:
Fax:
email:
IMPORTANT:
8AM - 4:30PM, Monday -Friday (except for Holidays)
970-461-0730
970-663-1010
[email protected]
Collect calls will not be accepted
Warranty Service for the MARC console hardware
Arrakis Systems will replace parts that fail due to defects in material or workmanship during the warranty period of the product. This warranty is extended
to the original owner only.
Arrakis Systems does not warranty equipment that has failed due to improper installation, abuse, or acts of nature. It is solely at the discretion of Arrakis
Systems as to whether a part is defective under warranty conditions.
Warranty Service Procedure for the MARC console hardware
Arrakis Systems assumes that its customers have on staff (or access to) competent technical personnel and adequate test equipment.
If a product fails, Arrakis will first seek to ascertain the problem over the phone and solve it at the modular replacement level where we find the specific
part(s) that have failed and repair or replace them. This is the least expensive and time consuming solution for you. Depending on the circumstances and at
our discretion, Arrakis will replace the specific PC board suspected to be at fault. If replacing PC boards does not resolve the problem, then the console is to
be returned to the factory where it will we repaired and returned to you. Repair time at the factory is normally two week days.
Shipping- The customer is responsible for payment for shipping to the factory. Parts returned to the factory freight collect will be refused. Return shipping
over and above the cost of UPS ground will be born by the customer. In the case of international shipments, all cost of shipping and duties are born by the
customer, both to and from the factory.
Under no circumstances will Arrakis replace a defective console with a replacement console.
IMPORTANT- Under no circumstances does Arrakis take any responsibility for non-factory technical expenses.
6.12
S ERVICE & M A IN TEN A N CE
Factory Service
(continued)
Warranty Replacement of Parts
To have a part replaced under warranty, you must:
1) Provide a valid product serial number that is within the warranty period
2) Contact the Arrakis customer service department and describe what parts need replacement and the circumstances of the
failure. (The customer service department may require on site test by your technician to confirm the part replacement is appropriate for your problem.)
3) A Return Merchandise Authorization Number (RMA #) will be issued when a part s to be returned to the factory.
4) Return ALL defective parts to the factory (shipping prepaid) to the attention of the “Customer Service Departent” with a letter
including your name, address, call letters, serial number, date, and valid RMA #.
5) Parts replaced under warranty will be shipped at Arrakis expense by UPS ground. Any expense over and above UPS ground will
be born by the customer.
IMPORTANT- If the defective parts are not returned to the factory within 30 days, you will be invoiced for them and it will be
assumed that they do not fall under warranty. Further customer service will be denied until the defective parts are returned of
paid for.
Spare Parts
A spare parts kit is provided with the console. These parts are provided in case of emergency failure and normal infant mortality.
These parts, when used to replace failures, are not replaced under warranty.
Purchased Parts
An Arrakis customer may purchase spare or replacement parts from the factory. The cost of the parts will include a service
charge, the cost for the parts, and the cost of the shipping.
Parts may be purchased by:
1) C.O.D. shipping
2) Valid and approved Credit Card (below our current credit limit)
3) Prepaid by company check (shipment after check clears the bank)
4) Wire transfer of funds
5) Through an Arrakis authorized dealer
Arrakis does not sell items on open account.
IMPORTANT- Non payment or late payment for parts will result in refusal of further customer service until the problem is
resolved.
6.13
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