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S E R V I C E & M A I N T E N A N C E

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.

6.2

Cue

Monitor

Head

phone

Aud

Utl

Ext1

Pgm

Stop

Auto

Reset

Start

Timer

Output

Timer

Motherboard

Output

Module

Studio

Monitor

Ribbon

Cable

(10

wires)

Main

Bus

Ribbon

Cable

(30

wires)

Cue &
Earphone
Power
cable
(+5V &
ground)

VU Meter

Bridge Cable

Remove
five
mounting
screws

VU Meter Bridge ribbon cable

Summary of Contents for MARC-15

Page 1: ...MARC 15 R A D I O C O N S O L E P R O D U C TS Technical Manual ARRAKIS a d va n c e d r a d i o Broadcast Console family November 1 2014 1 0...

Page 2: ...ntact information How to contact Arrakis Systems I N TR O D U C TI O N ARRAKIS a d va n c e d r a d i o 1 1 DHD Live software for the ARC console is provided at no charge and does not include the cost...

Page 3: ...ping 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 manuf...

Page 4: ...interference 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 instruc...

Page 5: ...d only to the extent pro vided 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 repair...

Page 6: ...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 qual...

Page 7: ...ve DHD Live Section Six Service and Maintenance Getting Started 4 1 4 4 Mainframe 4 5 Power Supply 4 6 Cabling 4 7 Gorunding 4 8 Output Module wiring 4 9 4 14 Input Module wiring 4 15 4 19 PC Setup fo...

Page 8: ...P R O D U C T D E S C R I P TI O N PRODUCT DESCRIPTION 2 0...

Page 9: ...r any on air or production Radio application Three stereo Program output mixes with mono mixdowns plus Monitor Headphone and Cue systems 15 channel modular mainframe supports many types of input modul...

Page 10: ...unt design 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 110 220...

Page 11: ...module MARC PHN1 MARC PHN2 Studio monitor module MARC STM Output Monitor Timer Module MARC OB The Output module comes standard with the console The 8 12 and 15 channel base models can then be configur...

Page 12: ...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 fu...

Page 13: ...a plug on the module IC sockets all socketed for ease of service VU meters true VU ballistics Electronic Audio switching electronic switching with CMOS ICs for ultra high performance and reliability n...

Page 14: ...ut THD 05 typ 50dBu in 8 dBu out CMRR 60dB typ 1kHz Impedances Mic Input 2000 ohms Line Input 10000 ohms Outputs 100 ohms System Max Output 23dBu balanced Stereo Separation 75dB typ 1KHz Pgm to Aud XT...

Page 15: ...Pgm Aud Utl Cue A B Pgm Aud Utl Cue A B Pgm Aud Utl Cue A B Pgm Aud Utl Cue A B Pgm Aud Utl Cue A B Pgm Aud Utl Cue A B Pgm Aud Utl Cue Pgm Aud Utl Cue Pgm Mic 1 Phone 1 Phone 2 Mic 2 Stop Reset Auto...

Page 16: ...O P E R A TI N G I N S TR U C TI O N S OPERATING INSTRUCTIONS 3 0...

Page 17: ...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 mod...

Page 18: ...o 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 The cue button is a sta...

Page 19: ...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 OUTPUT BUS ASSIGNMENT The...

Page 20: ...d stop a manual record ing on the PC computer 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...

Page 21: ...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 outpu...

Page 22: ...tem will mute audio is turned off so that there will not be feedback from the speakers to the microphone MONITOR SELECTOR SWITCH This switch selects the audio source for the Monitor sys tem 1 AIR this...

Page 23: ...other 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...

Page 24: ...urce chan nel 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 CUE AUDIO Cue a...

Page 25: ...l 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...

Page 26: ...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 3 9 Arrakis Systems inc Program Audition U...

Page 27: ...Power Supply 4 6 Cabling 4 7 Gorunding 4 8 Output Module wiring 4 9 4 14 Input Module wiring 4 15 4 19 PC Setup for USB module 4 20 ARC 16SW 4 21 4 23 Basic Calibration 4 24 Output Board Calibration 4...

Page 28: ...h 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 in...

Page 29: ...pment 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 ship ping m...

Page 30: ...ow 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 t...

Page 31: ...ug 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...

Page 32: ...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...

Page 33: ...nframe as shown The indented key tab on the DC power connector faces up The connec tor is recessed a couple of inches into the frame NOTE the recessing of the connector can make it difficult to plug i...

Page 34: ...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...

Page 35: ...tronic noise that would contami nate 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 o...

Page 36: ...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...

Page 37: ...3 4 5 6 7 8 Left out Left out Right out Ground nc Right out Cue out to amp nc Earphone Output 1 2 3 4 5 6 7 8 Left in Left in Right in Ground nc Right in Left 10dBu input Right 10dBu input External Mo...

Page 38: ...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...

Page 39: ...uner or Off Air Monitor Output 1 2 3 4 5 6 7 8 Left out Left out Right out Ground nc Right out nc nc Monitor Output 1 2 3 4 5 6 7 8 Left out Left out Right out Ground nc Right out Cue out to amp nc Ea...

Page 40: ...und nc Right out nc nc Monitor Output 1 2 3 4 5 6 7 8 Left out Left out Right out Ground nc Right out Cue out to amp nc Earphone Output 1 2 3 4 5 6 7 8 Left in Left in Right in Ground nc Right in Left...

Page 41: ...ack input 2 cue will be heard in the headphones 4 13 Main Console Outputs Monitor Inputs and Outputs Output Module MARC OB TOP REAR VIEW OF THE OUTPUT MODULE TALKBACK 1 2 3 4 5 6 7 8 Left out Left out...

Page 42: ...o out Audition Output 1 2 3 4 5 6 7 8 Left out Left out Right out Ground nc Right out Mono out Mono out Utility Output Main Console Outputs PIN Wire Color Audio 1 White w Orange Stripe Left 2 Orange w...

Page 43: ...LED should be connected through a 510 ohm resistor to ground Channel On Channel Off On off Tally LED Talk to Console Cough Ground A Input B Input Connectors Logic B A PIN Wire Color Audio 1 White w Or...

Page 44: ...available for start and stopping source devices like CD players A input B input Connectors Logic B A PIN Wire Color Audio 1 White w Orange Stripe Left 2 Orange w White Stripe Left 3 White w Green Stri...

Page 45: ...ed RS232 Logic wires to a 9 pin RS232 D sub con nector 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 Connectors Logic Rec USB Aud Utl Cue Rec or...

Page 46: ...NUS 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 c CONTROL LOGIC The hybrid has two ways to an...

Page 47: ...ft in Right in Ground nc Right in nc nc External Monitor In 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 dri...

Page 48: ...232 CONTROL PORT 9 PIN SERIAL CABLE LAPTOP OR DEKTOP PC USB cable CUE IN PC LINE OUT AUDIO CABLE WITH 1 8 PHONE JACKS USB HUB ARC CH 9 USB PORT ARC RS232 PORT PC USB PORT RS232 to USB adapter IF YOUR...

Page 49: ...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 Co...

Page 50: ...eling 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 Sil...

Page 51: ...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 qualifi...

Page 52: ...e This is because the audio levels are determined by the PC soft ware 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...

Page 53: ...t 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...

Page 54: ...ump er 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...

Page 55: ...ctor 4 PC USB module MARC USB USB NOTE The RJ45 connec tor titled RS232 Logic wires to a 9 pin RS232 D sub connector as illus trated at the right 9 Pin RS232 1 nc 2 Pin 1 RJ45 3 nc 4 nc 5 nc 6 Pin 2 R...

Page 56: ...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 NOTE The Mute...

Page 57: ...nced Console Input Balanced inputs and outputs are the best method to reject hum ACTIVE BALANCED AUDIO SOURCE CONSOLE INPUT CHASSIS GROUND SHIELD 13 2 Unbalanced Source Output to Balanced Console Inpu...

Page 58: ...characteristic imped ance 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 re...

Page 59: ...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 t...

Page 60: ...put to Unbalanced Input Use this wiring method for low noise connection of an unbalanced audio source to a bal anced output on a console Signal Electronic Ground ACTIVE UNBALANCED AUDIO SOURCE CONSOLE...

Page 61: ...esistor Rsource Signal In Electronic Ground ACTIVE UNBALANCED AUDIO INPUT CHASSIS GROUND Console Output Matching Resistor Rseries Console Output impedance Rconsole Isolation Transformer Impedance Ztra...

Page 62: ...OUND SIGNA L GROUND The most common Ground Loop is caused by shield grounds con nected at both ends and the 3rd wire AC safety ground b REMOVE THE GROUND LOOP BY BREAKING THE LOOP Full Ground Lift To...

Page 63: ...rmers 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 br...

Page 64: ...DHD LIVE FOR THE MARC CONSOLE 5 0...

Page 65: ...ions 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 la...

Page 66: ...SERVICE MAINTENANCE INSTRUCTIONS S E R V I C E M A I N TE N A N C E 6 0...

Page 67: ...op amp failure lightning power surge or other transient on this cable 5 Power Supply failure lightening power surge or other transient on the AC power line SUGGESTED REPAIR PROCEDURES 1 NO AUDIO OUT O...

Page 68: ...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 INT...

Page 69: ...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...

Page 70: ...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 mot...

Page 71: ...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 cable...

Page 72: ...a lock nut Unscrew the lock nut to remove the knob KNOB COVER KNOB LOCK NUT All 3 rotary faders are in a single wiring harness that plugs into the motherboard The entire harness should be replaced wi...

Page 73: ...placed 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...

Page 74: ...Air in Pgm in Aud in SW out Record Play Pwr PGM Sum Monitor Selector PL PR AL AR UL UR Q TB AUD UTL UTL Trim A B F A D E R PGM Cue PGM AUD CUE ON Logic Logic Logic Stereo Line module AUD UTL UTL A B T...

Page 75: ...itch CD4053 Pgm Aud Utl bus assign switch CD4053 On Off Tally Logic 2N3904 The MARC 15 console is designed for modular replace ment rather than component level field repair The con sole is modular and...

Page 76: ...ud Utl bus assign switch CD4053 Pgm Aud Utl bus assign switch CD4053 On Off Tally Logic 2N3904 The MARC 15 console is designed for modular replacement rather than component level field repair The cons...

Page 77: ...m Aud Utl bus assign switch CD4053 Record input amp NE5532 The MARC 15 console is designed for modular replacement rather than component level field repair The console is modular and modules can be re...

Page 78: ...N3904 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 exter...

Page 79: ...LS08 Dual AND gate switch logic 74AC74 Muting Relay Muting Relay driver 2N3904 Audio input from Output Board The MARC 15 console is designed for modular replacement rather than component level field r...

Page 80: ...74ALS08 Monitor Selector Logic Dual Flip flop 74AC74 Ext 1 Monitor Input amp NE5532 Monitor Output amps NE5532 Headphone Output amps NE5532 Cue power amp LM386 Talkback amp NE5532 Aud Output Amps NE5...

Page 81: ...onditions 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...

Page 82: ...l 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 Furt...

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