Wheatstone Corporation D-8 Quick start guide

D-8 Digital Control Surface
TECHNICAL GUIDE
600 Industrial Drive, New Bern, North Carolina, USA 28562

GENERAL INFORMATION
page 1
D-8 / Feb 2008
General Information
Introduction
The D-8 Digital Audio Control Surface is a member of Wheatstone’s line of D-series
control surfaces with the functions and control capabilities required by television broad-
cast facilities, including plenty of output mixes:
2 main mix buses - one may be configured for 5.1 digital surround
4 stereo subgroup mixes
2 stereo auxiliary sends
8 mono Mix-Minus outputs
24 mono Bus-Minus or direct outputs
4 mute groups
The intuitive input fader section provides LED indicators for all bus assignments for
“ataglance”confirmationofmainbusandMix-Minusassignments.Aboveeachfaderon
the input panel is a channel ON switch, 8-character backlit LCD source display, PFL
switch,BUS-MINUSTBswitch,eightMix-MinusandfoursubgroupassignmentLED’s,
two lighted stereo bus assign switches, four mute group status LED’s, two AUX Send
encoderswith ONswitches, anda SETswitch. TheSET switchprovides instantaccess to
the integrated touch screen monitor for comprehensive input channel control including
EQ, filters, compressor/limiter, expander, and surround panning.
The Master output control panel provides group bus and master output faders, mute
group control, and talkback functions. Integrated on the output panels are central shared
controls for assigning input faders to group, Mix-Minus, and mute group buses. The

GENERAL INFORMATION
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D-8 / Feb 2008
Monitor Control panel features three monitor output level controls with source
displays and studio talkback, an event recall system (with security function), and
an array of user-programmable switches.
Designed to integrate flawlessly with the Wheatstone BRIDGE digital audio
network router, the D-8 control surface allows you to easily create large or small
expandable platform-based systems that are exceptionally user-friendly. Wheat-
stone BRIDGE network cages house all I/O ports and engine cards, and may be
wired in tandem within a single equipment room or interconnected to separate
remote locations by means of CAT-5 cables or fiber to provide single wire studio
integration schemes.
Once configured, the system operates entirely independently of external
computers. Configuration itself is intuitive and customized onsite by means of
user-friendly graphical interfaces provided by Wheatstone desktop software. The
D-8 surface also takes full advantage of Wheatstone’s exclusive VDip configura-
tion software, so that studio functions (like mutes, fader and timer starts, tallies,
etc.) are easily configured right at your desktop. All settings are retained in non-
volatile storage, allowing the entire system to run independently.
All D-8 surfaces have a built in automation control Interface which enables
external control of many D-8 surface functions by popular video automation
systems over an Ethernet network. Our Translator desktop software adds another
level of flexibility by integrating house router crosspoint control with the D-8
surface.

G E N E R A L I NFORMATION
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D-8 / Feb 2008
Control Surface Placement
The D-8 digital audio control surface is designed for leg set or countertop
mounting. Leg set assembly instructions are included with the optional leg set.
Although the rubber feet on the bottom keep the surface from being easily moved
when simply placed on the counter, holes have been provided so that screws may be
used to mount the surface securely to the countertop. Carefully remove the appropriate
end panels from the frame, screw the mainframe to the counter top, and reinstall the
removed panels. The frame dimensions (in inches) are shown in the drawings below.
Do not connect the D-8 control surface to its power supply until the surface is
installed or mounted on the leg set. Never connect the power supply to the AC power
line unless the surface’s 5-pin D-SUB DC power cable is securely connected first.
22.8"
1.2"
19.6"
16.2"
15.0"
1.4"
52.3"
13.4" 22.8"
5.5"
23.9"23.9"
1.25" 6 HOLES, D=0.2";
USE #8 SCREWS
D-8 - 24 FADER INPUT

INPUT PANEL
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Input Panel (IP-D8)
Controls and Functions
Each input panel of the D-8 digital audio control
surface has four identical strips representing four
input channels. The D-8 provides two methods for
changing parameters on a fader strip. The majority of
functions are accessed from the touch screen VGA
monitor(seeChapter6fordetails).Asmallnumberof
functionsaredirectlyaccessedusinghardwareswitches
and pots located on the surface. Most users will use a
combinationofbothmethodsinday-to-dayoperation.
Note that the Input fader strip has a minimum
number of physical controls, and certain bus assign-
ment buttons located on the MASTER output and
MONITOR panels are shared among all input faders.
Input Sources
Each input fader panel is fitted with four faders.
Mono,Stereo,or5.1Sourcescanberoutedtothefader
from any cage in the system. Note that certain fader
positions may be dedicated to 5.1 sources as denoted
by the “5.1” label on the fader knob. To select the
desired input source, first press the channel’s SET
button or click on the fader’s number in the Input
Selector Bar at the bottom of the VGA monitor. By
turningtheSOURCESELECTknob(ontheMON-D8

INPUT PANEL
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D-8 / Feb 2009
panel), the available inputs are displayed in the
fader’s 8-character SOURCE display. When
the desired input source is scrolled into the
SOURCE window, pressing the TAKE button
(on the MON-D8 panel) will cause that source
to be switched to the input of the channel, and
the source name will be displayed in the
SOURCE window.
SET Button
TheSETbuttonislocatedatthetopofeachfaderstripandforcesthefocus
oftheVGAtotheselectedinputfaderstrip.Thisallowstheoperatortoaccess
various controls and displays in the MON-D8 panel and apply them to the
selectedchannel. To use, press theSET buttonand then make your appropri-
ate section settings in other areas of the control surface. Once a SET button
hasbeenpressed,thebuttonlightsup,andallsettingchangeswillapplytothat
inputchanneluntiladifferentinputSETbuttonispressed.TheSETfunction
may be configured in the Options.txt file (see Appendix 1) to automatically
timeout after 20 seconds.
AUX
Each channel of the input panel has two AUX send knobs (AUX 1 and
AUX 2) to set the level of the channel’s audio in the AUX SENDS. Two
switches (ON 1 and ON 2), determine whether the channel feeds AUX 1
(ON 1) and/or AUX 2 (ON 2). Aux sends may be pre-configured in the
Options.txt file to be tapped pre or post fader. See the User Programming
section in the Appendix 2 of this manual for details.
MuteAssign Displays
EachfadercanbeassignedinanycombinationtoMUTEMASTERA,B,
C,or Dbypressing thefader’s SETbutton,then selectingthe desired INPUT
CHANNEL MUTE ASSIGN switch located at the top of the MASTER fader
panel.TheMUTEindicatorLED’sonthefaderstripwilllightsolidtoindicate
theassignmentandflashslowly when muted.Anychannelthatisassigned to
aMUTEMASTERwillbemutedwhenthecorrespondingMUTEMASTER
is activated. Mute masters are useful for turning several microphone faders
Off with a single button press - like when going to a break.
ASSIGN Switches - 5.1/ST 1 and ST 2
ASSIGN buttons assign the input channel signal to the two main buses:
5.1 (surround)/ST 1 (stereo 1) and ST 2 (stereo 2), respectively. The buttons
lightuptoshowwhichbusestheinputchannelhasbeenassignedto.Notethat
the5.1/ST 1switchroutestothefirstmasterbus.Thismasterbushasbeenpre-
configured to be a surround bus or stereo bus; it is not two separate buses.
MON-D8 Panel

INPUT PANEL
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D-8 / Feb 2009
GROUPAssign Displays
These four LED indicators (GROUP) show which audio group(s) the
channel has been assigned to using control switches in the GROUP ASSIGN
sectionoftheMST-D8panel(page4-3).ToassignaninputfadertoaGROUP,
first press the INPUT fader’s SET switch, then press the appropriate Group
assign switch at the top of the MASTER fader panel.
MXM Displays
Each fader can be assigned to any combination of the eight Mix-Minus
buses. The assigned settings are displayed in the MXM 1-8 LED displays.
Fadersareassignedtothese MXMs byusingthe
touch screen GUI on the VGA monitor (see
Chapter 6 for details) or using the hardware
switches located on the MON-D8 panel. On the
GUI press the MIX MINUS button at the top of
theVGAmonitor.UsetheMXMMatrixtoselect
thedesiredinputfaderandthenpressthedesired
MIX-MINUS ASSIGN button, located on the
MON-D8 panel. When you light one of these
LED’s you are removing the fader from the
Mix-Minus bus.
PFL(CUE) Switch
The CUE switch lets the control surface operator monitor the channel’s
pre-fader signal.
MON-D8 Panel

INPUT PANEL
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D-8 / Feb 2009
Bus-MinusOutputs
Each fader has a special dedicated output for IFB, Mix-Minus, or Direct
feeds - these outputs are collectively known Bus-Minus. These monaural
audio output signals may be freely routed to feed telephone hybrids, ISDN
interfaces,recordingfeeds,orotherdevicesasrequired.NotethatBus-Minus
is a separate system from the dedicated eight Mix-Minus buses.
What appears at the Bus-Minus output for a fader is determined by how
you configure the Bus-Minus output on the D-8 Input screen for your fader.
In a typical application like feeding a TV remote, one might configure the
remote talent’s Bus-Minus output to include a base mix of the board’s main
program output bus (say ST 1) minus the remote talent’s fader. Many other
Bus-Minus configurations are easily configured, including direct outs for
recording.
You can control and meter the output level of any Bus-Minus output by
switching to the Input screen for your fader or navigating to the main BUS
MINUS screen. You can always press the SET button on the fader strip to
cause the VGA monitor to switch to that fader’s Input Screen. Click on the
mainBUSMINUSnavigationbuttononthetopoftheVGAtoseeall24bus
minus outputs at once (see Chapter 6 for details).
Bus-MinusRouting
Bus-Minus outputs for each surface fader appear as Sources in the
SurfacesignalareaofXPoint,typicallylocatedabovesourcesignalID1001.
A typicalBus-MinusoutputsignalnameisintheD1BM01throughD1BM24
range;however,theexactnamedependsonthefaderandsurfaceIDnumber.

INPUT PANEL
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D-8 / Feb 2009
Bus-Minus TB Switch
The BUS MINUS TB switch routes the TB BUS audio, typically the
operator’s intercom microphone, to the Bus-Minus output for that chan-
nel,allowingtheoperatortotalkbacktothetalenthearingthatBus-Minus
signal.
Channel ON Switch
ThechannelONswitchturnsthechannelsignalONandOFFandfires
the channel ON(START)/OFF(STOP) logic. The switch LED lights to
indicate the channel is ON. Channel ON may be remotely controlled by a
physical GPI or by external automation via the surface’s TCP/IP control
interface.
Fader
Channel output level is set by a long-throw motorized fader for
automated level control.
NOTEthatinputchannelsconfiguredfor5.1sourceshavefaderknobs
engraved with “5.1.”

MONITOR PANEL
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Monitor Panel (MON-D8)
Controls and Functions
TheD-8digitalaudiocontrolsurfaceisequipped
with one MONITOR panel. This panel provides
speaker volume controls for the audio CR, two
studios, and a PFL speaker. Also included are
master volume controls for the Aux Sends, MXM
outputs, and Talkback level. Other functions in-
clude an Event snapshot store/recall system, six
programmable buttons, and a universal Source
selector knob.
Monitor Speaker Controls
Therearethreemonitoroutputsavailable:CON-
TROL ROOM, STUDIO 1, and STUDIO 2.
Each monitor has a LEVEL control, a SET
button, and a SOURCE display, located at the
bottom section of the MON-D8 panel. There are
also TB buttons to talkback to the two STUDIO
sections.
A“soft”MODEselectorislocatedontheMAIN
screen that allows users to switch between SUR-
ROUND, STEREO, MONO, LEFT only, and
RIGHT only modes.
Monitor sources can be selected using the
MONITOR MIX PRESETS buttons located di-
rectlyabovetheControlRoomknoborbyscrolling
the list of available sources using the SOURCE
SELECT knob.
Selecting Monitor Sources
•PresstheSETbuttonrightnexttotheCONTROL
ROOM or STUDIO knob.
• Press one of the MONITOR MIX PRESETS
buttons to select MAIN, ST 2, or one of two
programmable sources.
• Sources can be randomly selected with the
SOURCE SELECT knob and the TAKE button
located just above the MONITOR MIX PRE-
SETSbuttons.First,presstheSETbuttonforthe
monitor pot you’d like to change the source on,
then use the SOURCE SELECT knob to dial up
the desired signal. Press TAKE next to the
SOURCE SELECT knob to complete the route.

MONITOR PANEL
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Using the MODE Selector
OnthefartopleftsectionoftheMAINtouch
screen is a MODE selector. Access this selector
bypressingamonitor’sSETbuttonontheMoni-
tor panel, or pressing a button below the CR,
ST1, or ST2 meters on the MAIN touch screen.
When switching modes, note that the CR can be set to Surround only if pre-
configured as a 5.1 output. Studio outputs are typically configured as Stereo.
When SURROUND is selected for the CR, mono mixes or Sources will be routed
to the CENTER channel.
Programmable Presets
The last two MONITOR MIX PRESETS buttons are user programmable. These
maybeloadedwithcommonlyusedsourceslikeAIR,Tuner,etc.Toprogramabutton,
decide on the source you want that button to represent. If the source in question is not
currentlyassignedtooneofthemonitors,maketheassignmentnow,asdescribedabove.
Next, make sure the SET button on the monitor to which the source in question is
assignedislit.Thenpressandholdtheprogrammablebuttonforthreeseconds.Thenew
source is now loaded into the button. Confirm the source storage by switching through
the MONITOR MIX PRESETS.
Studio Output Functions
StudioOutputshave extrafunctionalitythat mustbeprogrammed usingtheXPoint
software. In most installations, a STUDIO output is programmed to MUTE whenever
a D-8 fader controlling a microphone in the corresponding Studio is turned ON. Logic
output ports may also be programmed to drive an ON AIR light whenever one of these
microphones is turned ON. Please refer to the User Programming in the Appendix 2
of this manual for details.

MONITOR PANEL
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Talkback
TALKBACK (TB) BUTTON - There may be times when
the control surface operator wishes to talk to the Studio floor
through the studio speakers. When the TB button in the studio
monitor section is pressed, a predefined signal, usually the
operator’s intercom mic, will “interrupt” the speaker feed that
is normally heard in the studio.
The TB source signal can be any source on the Wheatstone
router. You must route the desired source to the D1TBk signal
using XPoint.
If there is a live mic in the studio which has activated the mute feature, talkback
willalsobemutedinthespeakers.Belowthetop-centeroftheMON-D8panelisthe
TB master level control that sets the talkback output and the level of the talkback
interrupt signal.
CUE/PFLSection
The CUE/PFL master level control is located in the center section of the MON-
D8 panel. The CUE/PFL signal is pre-fader, and is normally used to check signal
integrity.When achannel is CUE’d,its pre-fadersignal willappear in thesurface’s
D1PFL mix, and the switched meter array on the MAIN screen will show the level
of the pre-fader signal.
The CUE/PFL level control determines the overall loudness of the cue signal.
Engineering Notes
There are two ways to listen to the PFL mix. Most users will route the D1PFL
mix to a stereo or mono analog output that is connected to dedicated PFL speakers.
Alternatively, you can program the CR or Studio outputs to interrupt whenever a
PFL switch is engaged. Programming is done by editing the CUE interrupt section
of a text file called D8_opts.txt. The file is located on the D8’s internal flash hard
disk. Access the file by FTP’ing to the surface, as described in Appendix 1.
Similar to the control room speakers, the cue speaker also has the potential for
feedback and should be muted (using the configuration software—VDIP menu)
whenever the control room speakers are muted.

MONITOR PANEL
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Switched Meters Section
The control surface has provision for
a switched meter.
To select a signal to meter, first press
the SET button, then rotate the encoder
SOURCE SELECT. Available sources
will be displayed in the eight character METER display. When the desired signal is
displayed,press theTAKE button.The switchedmeter arraywill thendisplay thesignal
level. If, however, after a timeout period of 20 seconds, the TAKE
buttonisnotpressed,thearraywillrevertbacktoitspreviousselected
program.
AUX Master Outputs
MASTERScontrolsAUX 1 andAUX 2areprovided atthetopof
the MON-D8 panel to set the output levels of AUX sends 1 and 2,
respectively.
Mix-Minus Master
Thissectionisasecondarywaytocontrol
theMIX-MINUSMASTERlevelforeachof
theeightMix-Minusoutputs.Double-tapthe
MXM MASTER knob, then press a MIX-
MINUS ASSIGN button. The assign button
willflashandanyotherassignbuttonmaybe
pressed. Rotate the MIX-MINUS MASTER
control to set the output level for that
Mix-Minus.
NotethatyoucanusethetouchscreenslidersontheMIXMINUSscreentosetMXM
master output levels.
Mix-MinusAssign
Thesebuttonsareusedtoassign/de-assigninputfaderstotheeightMix-Minusbuses.
The D-8 is configured so that when you light a MXM assign switch the audio on the
fader is removedfrom the Mix-Minus bus. This method makes it very easy to see which
MXM output a particular fader is using and prevents clutter LED’s on the input fader

MONITOR PANEL
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D-8 / Feb 2009
panels and the MIX MINUS screen.
Press the SET button on any input fader channel. When a fader is assigned to
feed a Mix-Minus bus, the corresponding MIX-MINUS ASSIGN switch will be
litontheinputchannelstrip.PressingaMIX-MINUSASSIGNswitchwilltoggle
that channel’s signal into or out of the corresponding Mix-Minus bus.
NotethatyoucanusethetouchscreengridontheMIXMINUSscreentoview
and set Mix-Minus assignments.
Mix-MinusTalkback
To interrupt a Mix-Minus output with the predefined TB
signal, press any of the eight MIX-MINUS TALKBACK mo-
mentary switches. The talkback signal - TB - may be any audio
source on the router. Please see the Talkback discussion earlier
in this section.
MONITOR Buttons
The two switches labeled “SETTINGS” and “BUS-” act as
hot buttons to switch between the Input settings and BUS
MINUS screens.
CONF Button
Pressing the CONF button activates the D-8’s Confidence
Feed function and lights the LED. Confidence feed automati-
cally replaces mix-minus output audio with a user defined
source during commercial breaks. Please see details below.
What is Confidence Feed?
ConfidencefeedisawaytoautomaticallyreplacethenormalMix-Minusaudio
heard by talent in the field with master control audio when your station goes into
a commercial break. When you return from break, confidence feed is automati-
cally turned off and normal Mix-Minus is fed out.
The confidence feed audio source is usually your master control or “air” feed,
but it can be any source on the router. Confidence audio is patched in XPoint
software by cross connecting the desired source signal to the D-8’s DxCFD

MONITOR PANEL
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D-8 / Feb 2009
destination signal. When CONF is activated a confi-
dencesource name boxin theupperright handcorner
oftheVGAmonitorwillalsobeginto“wink”slowly.
This function may also be remotely controlled with a
tally relay from master control. Please see the User
Programming note in the Appendix 2 section of this
manual for details.
Event Controller Section
This section provides a means
for storage and retrieval of control
surface settings, and naming those
settingsas“Events.” Inthismanner
complete configuration and setting
information that is used repeatedly
(for example, “6PM News”) can be
savedandrecalled.Upto100differ-
ent events can be stored.
Storing an Event
When an event is stored, all of the control surface’s current settings are saved and
will be recalled when that event is executed through the TAKE command. To create
aneweventfromcurrentcontrolsurfacesettings,hittheNEWbutton,andthenhitthe
SAVE button. To overwrite an existing event with the current settings, turn the
PREVIEW SCROLL knob until the desired event is displayed in the PROGRAM/
PREVIEW window, then quickly press MODIFY, then SAVE.
Taking an Event
Rotate the PREVIEW SCROLL encoder until the desired event is shown in the
PROGRAM/PREVIEW display. To prevent accidental takes, the ARM button must
be pressed to arm the function. The TAKE button will now flash indicating that the
panel is ready to act on a take. Then press the TAKE button to execute the EVENT.
Undoing an Event
To recover from a premature or erroneous EVENT take, press the ARM and
UNDO buttons. This will return the system to its status prior to the last take, with the
last program event being once again the current program event, and the last preview
event (the one just taken) becoming the preview event once again. There is only one
levelofundo.Ifundohasbeendoneandasubsequenttakehasnotbeendone,pressing
the undo function again will do nothing.
Modifying the Currently Selected Event
It is presumed an event has already been executed on the control surface.
Modificationstothateventcanbeaccomplished bysimply adjusting thecontrols and
switchesas desired and then pressingthe MODIFYbutton, then the SAVE button.In
thiswaythemodifiedeventwilloverwritetheoldeventsettingandbesaved,withthe
same name, in its place.

MONITOR PANEL
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D-8 / Feb 2009
Deleting an Event
RotatethePREVIEWSCROLL
encoderuntiltheEventtobedeleted
is shown in the PROGRAM/PRE-
VIEW display. Press the Modify
button, then press the PREVIEW
SCROLLknob;thedisplaywillask
“DELETE?” Press the TAKE but-
tontodeletethepreviouslydisplayed
Event. Do nothing and Delete mode will time out after approximately 7 seconds.
Deleted Events may NOT be restored.
Previewing an Event
RotatethePREVIEWSCROLLencoder(pushknobinwhilerotatingforfaster
scrolling) and available EVENT names will be shown in the 8-character PRO-
GRAM/PREVIEWdisplay.When thedesiredevent is showninthe display,press
the ARM button, then press the PREVIEW button. This will cause the entire
controlsurfacetodisplayallsettingsassociatedwiththatevent,withoutdisturbing
the current operative event. The preview status will be indicated by illumination
of the PREVIEW button and flashing of all source and destination displays, to
remind the operator that these would be the intended settings when the change is
made. Pressing the PREVIEW button a second time will cancel the preview. It
should be noted that no audio signals are changed in any way by the preview
feature.
Event Default Button
This control allows rapid access to a default or home control surface setting.
Push it, and the TAKE button in the Preview section will flash. Hit the TAKE
button and the default setting will be executed.
Establishing the Default Setting
Thissettingwouldnormallybesetonlyonce.Forexample,itmaybedesirable
to have all controls set to zero, or everything programmed to typical nominal
settings. To establish the default setting, adjust all the control surface controls to
their desired settings, press the MODIFY button, and then the DEFAULT button.
The default setting is stored.
Naming an Event
When events are saved, they receive a default event designation number. This
wayeventscanbesavedquicklywithouthavingtonamethem.However,anevent
may be custom named when saved, or at a later time. To rename the displayed
event, press the ALPHA SCROLL knob. The CURSOR LT and CURSOR RT
buttons will light and the cursor, indicated by a flashing character, will be at the
beginningofthename.Also,theSAVEbuttonwillbegintoflash.Atanytimeyou
canuseCURSORLTandCURSORRTtomovetoacharacteryouwanttochange.
Once the cursor is at the desired character, rotate the ALPHA SCROLL encoder
untilthedesirednew characterisdisplayed.Once all desiredcharactershavebeen
changed, simply press SAVE to save your changes. The event is stored with the

MONITOR PANEL
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D-8 / Feb 2009
desiredname.AtanytimeyoucancancelthenameeditbypressingtheALPHA
SCROLL knob. Also, if you stop making name changes but fail to press the
SAVE button, the name edit process will automatically cancel after a delay of
about 10 seconds.
Control Modes and Log In Levels
The D-8 control surface is operated in one of three modes. In Administrator
modeaccessisallowedtoallsurfacefunctions.InUsermodealimitedsetofuser
functions is allowed. The set of functions allowed in User mode is set indepen-
dentlyforeachconsoleusingtheBridgeXPointsoftware(seetheBridgeRouter
manualfordetails).Thethirdmode,Guest,blocksoutMix-Minusassign,Event
takes, Event saves, and visibility changes from being controlled by the surface.
To change the control mode, begin
by pressing and holding the SOURCE
SELECT knob until the display reads
“Admin”andtheTAKEbuttonlights(if
the surface is currently in Admin mode
the SET button will also light). Turn
SOURCESELECTuntilthedesirednew
mode (Admin, User, or Guest) is showing in the display and press TAKE. Turn
SOURCE SELECT again to select the first digit of the password. Default
passwords,whichmaybechangedinXPoint,are“1234”forAdmin,“2222”for
User,and “0000” forGuest. Afterdialing up thefirst characterof the password,
pressTAKE.Thendialuptheseconddigit.Continuethisprocedureuntilthefour
characters have been entered. Upon pressing TAKE after entering the fourth
character, the display will read “Okay...” if you were successful and “Sorry...”
if you were not. When finished, turn SOURCE SELECT until the display reads
“<<Exit” and press TAKE to finish the mode select operation.
The SET button lights as you select the mode that the surface is currently in.
Ifyoupress TAKEwhendisplaying the currentmode,the displaywillswitch to
“Okay...” and you will not need to enter the password. If you stop partway
through the procedure, the mode selection process will time out after about 15
seconds.
Once a given control mode is selected for a surface, that setting will persist
through a power cycle or surface reset.
ProgrammableButtons
These six (6) momentary switches and
indicatingLEDs aredesigned foruser acces-
sible external functions (GPI/GPOs). With
these switches the user can fire Salvos or
makea temporary crosspointwithout having
to wire any physical logic ports. These
switchesmayalsobemappedtocontrolphysicalLogiccardoutputports,andthe
LEDs on the Spare buttons may also be lit by a remote device connected to a
Logic card input port. See the User Programming section in the Appendix 2 of
this manual for details.

MASTER PANEL
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Master Panel (MST-D8)
Controls and Functions
The D-8 digital audio control surface is equipped with
oneMASTERpanel.Thelowerhalfofthispanelprovides
fader control of the two master program outputs and four
group outputs. The top section’s assign switches work in
conjunction with the Input fader’s SET buttons to assign
Input faders to the A-B-C-D MUTE assign and to the four
audio Groups G1-G2-G3-G4. Rounding out the panel are
talkback switches to the AUX Sends and the four MUTE
MASTER switches.
Input ChannelAssign Buttons
AtthetopoftheMASTERpanelaretwosetsofbuttons
that only work whenever an input fader’s SET button is
pressed. These are the A-B-C-D Mute Assigns and the
G1-G2-G3-G4 Group Assign switches.
Mapping an Input Fader to a Mute Group
To map an input fader to a MUTE GROUP, first press
the input fader’s SET switch, then select the desired
A-B-C-D INPUT CHANNEL MUTE ASSIGN switches.
Routing an Input Fader to an Audio Group
To route an input fader to an audio GROUP, first press
the input fader’s SET switch, then select the desired
G1-G2-G3-G4 INPUT CHANNEL GROUP ASSIGN
switches.
AUX Talkback
Below and to the right of the Input Channel Group
Assign switches are two talkback buttons. Pressing the
AUX 1TBbuttonwillinterrupttheAUX 1outputwiththe
predefined TB signal. AUX 2 TB works in a similar
manner.PleaserefertotheTalkbacksectionintheMonitor
Panel chapter of this manual for details on configuring
talkback.
SET Buttons
LiketheSETbuttononinputfaderstrips,theMASTER
andGROUPSETbuttonsareusedtoaccessothercontrols
and apply their settings to the selected output mix. The
masters may have their MODE settings changed and may
be assigned to MUTE MASTERS A, B, C, and/or D.

MASTER PANEL
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D-8 / Feb 2009
Master and Group SET buttons are located in the upper portion of the panel.
Groups may be assigned to Mix-Minus buses too.
Pressing a MASTER or GROUP SET button will cause the D-8’s VGA
screen to switch to the MAIN screen and display the output meters.
Master Program Outputs
Input Fader Assign to Masters
Input faders are routed to either master audio
output by using the MASTER ASSIGN switches
located directly on the input fader strips. You may
freelyassign anyinput faderto eitherthe 5.1/ST 1 or
ST 2 master audio outputs, or even to both.
Channel Master ON/OFF
The ON switch turns the channel signal ON;
pressing it again turns the channel signal OFF. The
switch LED lights to indicate the channel is ON.
Master Faders
These motorized controls set the levels of the
master channels.
NOTE that 5.1 MASTER fader’s knob engraved
with “5.1.”
Mute Groups
Mute Group Assign
Each input fader, Group, and Master can be as-
signed in any combination to MUTE ASSIGN A, B,
C or D. Assignment is made by first pressing the
channel’s SET button, then pressing the desired
INPUT CHANNEL MUTE ASSIGN button located
at the top of the MASTERS panel. Indicators on the
input panels show the mute assignments.
Mute Master
The MUTE MASTERS A, B, C and D buttons
providearapidwaytomuteagroupofsignals.When
MUTEMASTERSAisengaged(thebuttonislit)all
channels that have been assigned to MUTE MAS-
TERSA,asindicatedbytheMUTESdisplayoneach
input channel, will mute. MUTE MASTERS B, C,
and D work in a similar manner.

MASTER PANEL
page 19
D-8 / Feb 2009
Audio Group Outputs
The four audio groups G1-G4 operate in stereo mode and may
be assigned to one or both of the MASTER output busses. Use the
GROUP SET buttons to assign the GROUP to a MUTE GROUP
or Mix-Minus bus. Pressing a GROUP SET button switches the
VGA monitor to the MAIN screen.
Group Assign Buttons
INPUT CHANNEL GROUP ASSIGN buttons located at the
top of the MASTER panel are used to assign input faders to the
Groups. Press SET on the input, then press any desired GROUP
ASSIGN button(s). Assignment for the channel with its SET
currently active are indicated by the lighting of the four INPUT
CHANNEL GROUP ASSIGN buttons, while the GROUP dis-
plays on each channel show that channel’s group assignment
whether its SET is active or not.
Group Assign to Masters
Each Group has two GROUP ASSIGN switches located in the
centerof theMASTERS panelwhich areused toassign theGroup
mix to either (or both) of the two main output busses - 5.1/ST 1 or
ST 2.Eachswitch’sLEDwilllighttoindicateassignmentismade.
Groups may be used to control the level of several common
signals (e.g. band mics, round table mics, etc.). That GROUP
signal is then routed to the main program mix out of the board via
the switches described in this section. Microphones or other
sources that are assigned to a Group are usually NOT assigned
directly to a MASTER fader.
Group Talkback
Pressing a G1-G2-G3-G4 TB button will interrupt the group
output with the predefined TB signal.
ON (GROUP ONE - GROUP FOUR) Switch
The ON switch turns the group channel signal ON, pressing it
again turns the Group channel signal OFF. The switch LED lights
when the Group is ON.
PFL(Cue)
These switches let the control surface operator monitor the
Group’s pre-fader signal.
Group Faders
These motorized controls set the output levels of the audio
GROUPS.