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ENE
gOUNDTRAGSH
H
il SOLO ''LIVE"
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MixingGonsole
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@ Operator's
Manual
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Contents
Introduction
Overview
I nput Channels . . . . . . . . ' .. . . . . . . . . . . . . r . . . . . . . . o . . o . o . '. . . . . . . o . . . . . . o . . o . . . r . . . . . . r . . . . . . . o '. . . . . . . . . . . .....2
ROUting....o.....r...'............o.........r...................r.r..........................o......r.............
3
Sub Grouping.................'......r...'...r..................'o......o.....................................3
Masters ...........
3
Input Module
Input SeCtiOn.................o...o.......................D.....o...........'.....D r r.... .... 5
The Equalisgr......................................o...........o................ ..........6
Insertion Point.....r.........r..............o..........o...............
.........r...............e..,....,...8
Thg Auxiliary Sgction.r.....................r...o...........o.........o..r.,......,..................................9
Output SgCtion..........o........r......................r................r...o...............o.........................
11
Master Section.....................o...... ..........
13
HeadphongMonitor............o........................o...,.. .........
t7
Power Supply............................o..... .21
Rear Panel Connectors .....o,......oo.o. ..22
Interconnection u
Installation .o..........
,25
Ea rth i n g ..........................t. ...................................................................i ..rr.r. . . . . . . . . . . . r . . 26
Jumper Unk Settings
.................................-...................................rt...r........
.........2'l
h||
lntroduction
hF
The Soundtracs with 16,71 and32inputs
SOLO is a series threcconrcles"
of
F{ respectively.The consoles
monomaster
in
havefour subgroups addition to stcreoand
outputs.The console particularlysuitablefor PA andstereo
is
recordi nBapplications.
Ff An internal power supply is provided on all consolesexcept the 32 input
model. This hasan cxtcrnal19"rack mountingsupply.
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Overview
The mixingconsoleconsists input channels thc left hand side and a
of on
mastersectionon the rigbt.
Input Ghannels
Thc input channsl5 designed talc a microphoncor line level (e.g.
are to
synthesizcr input. The signalfrom an instrumcntwith an electric pick-up
)
mayalsobefed to the console a directioject (DJ.) bor The input st4ge
via
allows the level or gain of the input *;gn'l to bc adjusted. From the input
stagethc sigfd is fcd to thc equdiscr.
INPI.TT
MODULE
MODULE
SUBGROUP
GroupOutpnt
MASTEB
MODULE
Master
Outpnt
Eqtnllrer
The cqualiseris very sophisticated of tone controls. It allows adjust-
set
mentsto bc madc to the frequency spedrum6f signels.It maybe usedas
a creativedeviccor asa correctivedevicc(c.g.toboct tbe top end of a dull
srgRal).1be equalisermaybc switchedin or out of circuit. This allowsa
quick comparisonto bc made bchpecnthe sigeal bcfore and after the
equaliscr. The tigld is fcd from thc e4udiscr to tbe channel insertion
point.
Inrertlon Polnt
This is a breakjackand allowsthe cha'nel signalto be intemrpted so that
outboardequipment(c.g.oompressors gatcs)maybc patchedin line
and
with the 6fennsl srgal.
Aurilhry Sendr
The auxiliaryscndsdlow cfrra mixesto bc madc hom the input channel
srgnals. Thesearuiliary mixes may be fed to outboard effects units (e.g.
reverberators)or used as monitor mixes to fccd monitor wedges and
sidefills.
The signalfrom the channclto the auxiliaries maybe takenbefore or after
(PRE or POST)the channelfader. For scndsto outboardeffectsu"its a
post-faderauxiliary sendin normallyuscd:this kecpsthe amountof signal
sent to the outboardproccssorconstantrclative to the level of the main
slpal. Foldback mixes bcst createdusinga prc-faderauxscnd,keeping
are
control of the lcvelsof signalsent to the foldback nix and the nain mix
separate.
Routing
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the signalin the stercoi-age (i.c. bctweenleft and right).
Sub Grouplng
Stgnals from the inputchannels mayberoutedto the four subgroups well
as
as to the stereornasters.Sigals routed to the subgroupsappearat group
outputson the re,ar panel but tbe subgroupsignals may alsobe routed to
the masters.Thisis accomplished usingthe MIX and PAI{ contrplson the
subgroup. Subgrouprng this s,xy can facilitateopcration considerably.
in
For example the dnrm and percussion
dl input channelscould be routed
to groups1 and 2. Subgroups and? could then be routed to thc stereo
1
masters.Thusthe level of all the drumscanbe controlledusingjust group
fadersl and2.
Masters
The stereomasters uscdasthe main outputsto the PA sptem or tape
are
recorder. Breakjact inscrtion points are provid"d.oq the stereomasters.
For PA wort thesecan often be nsedto good efrectby patchinga sterco
graphicequaliser to circuit. This canbe usedto adjustthe output signal's
in
frequencyspectrum compensate the acousticsof the room or hall.
to for
For both PA and recordi.g a stereo compressorqan often be usefully
cmploycdon the output or patcbedin to the inscrtion points ts limil any
cxccssivepcats andtransients thc programmematerial.
in
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The input modulequfiich maybc 16,?Aor3zin number,are locatedat the
NT left handsideof the console.Thesemodules takca microphoneor line level
input slgnal adjrxt its' gein, allow it to bc proccsscdby the channsl
equaliser, to erCernal
fed cffectsfor further treatment,and then routed to
t goup andmasteroutputs.
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lnputSection
The input sectioncomprises balancedmicrophoneandline inputs. The line
iaput is accessed a stereojact socketon the rcar panel of the console.
via
The microphoneinput is accesscd a thr*-ptq female)(LR connector
by
on the rear panel. For informationon conncdionsrcfer to the 'Rear Panel
Conneclors" cbapter.
MIC / LINE
?4
This switch is used to setect between the
trI
microphoneand line inputs. When the switchis
T trg in the raised position thc MlCrophone rif.l it
UIC
- sclectcd. When thc switch is depressedthe
GADI LINE signal is scleaed.
GAIN
This control is nscd totrim the gain of the input
stage in order that the input sigpal may be
matched to the opcrating level of the mixer
cbannel Careful matching of the input gain
allows the optimum signal to noise ratio to be achicved. Thc input gain
shouldbe adjusted scttingthe cha"nel fader to S" and adjustingthe
by
GAIN control until the sbal is at a convcnicntlevel for the mi:r, or by
PFLi"g the signalandadjustingtheGAIN control until the srfal averages
OdBon the meter.
Whenthe MIC inputis scleaedthe input gainis adjustable
between+ 10dB
and +60dB. When the LINE input is selectedthe gain is adjustable
between-20d8 and + 30dB
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il
The Equaliser
['
The equliser is a four filter design,with fixcd high 41d low operating
Fil frequencies sweepable frequency
andversatile,
and mid bands.The cqualiseris powerful
usefulboth asa corrective a crcatirre
and devicc.Wherelarge
amounts boostare addedto the sifal usingthc cqualiserthe channel
of
n circuitry may becomeoverloaded. This will rnanifestitself as audible
distortion(crunching)6d fl35hing the PEAK IJD. Excessive
high frequencies
of boost of
*ill *pltfy the noisc componentof the souroesrsal
me.
nf disproportionately tbe progrem
to
IIF
Fil The rotary control adjusts amountof boost
the
or cut appliedto the siglal by the high hequen-
cy filter of the equaliscr. Up to 15dB of booat
f,t or cut maybeseleaed The filter hasa frequen-
cybreakpoint l2kllz anda shelving
of responsc.
iq lrFl
.15 - + lSdB This rotary control adjuststhe
amount of boost or cut applied to the signatby
il the higb mid filter of the equaliser.Up to 15dB
of boostor cut maybe selected.
FT 350- tk This rotarycontrol adjuststhe operat-
ing frequency the hrgh
of
-id
frequency filter of
the equaliscr.The frcqucncyis sweepable be-
tween350H2and 8kHz
F,* has
This Frlter a peakiry @ell-shaped)
response
and a bandwidthor'Q" of 15.
FS MEI
Ft -15 - + lSdB This rotary control adjuststhe
amountof boostor cut appliedto the srgnal by
the low mid filter of tbe equalicer.Up to 15dB
q of boostor cut maybc sclected.
$ - lk Thisrotarycontroladjusts opcrating
the
rr frequency the low mid frequency
of frlter of the
cqualiser.Thc frequency swecpable
is
50Hz and lkllz
betwecn
ry -*El
(bcll-shaped)
This filter hasa peelring
and a bandwidth or'Q" of 15.
rcsponse
x" LF
The ruary controladjuststhe emountof boostd cut applied to the srsal
}n by the low frequency
filter of the eQualisgl. to 15dBof boostor cut may
Up
---.5
be selected.The filter hasa frequencybreakpoint 80Hz and a shelving
of
resPonse.
EQ
This is usod to switch the equaliserin or out of the chat"tel signal path.
When the switch is in the raiscd position the cqueliscr is switched out of
the channelsignd path. When the ss,itch is dcpresscdthe cqualiser is
switchedin to circuit.
ru
t
r lnsertionPoint
The inscrtionpoint allowsefrernaleffcctsunits to be patchedin line with
It the channelsignalpath. The insertionpoint is acccssed a stereojack
by
socketmarkedINJECTlocatedon the rear pancl This is wired ring send,
tip return. The sendis normalledto the return: that is to saythe return is
nt normallyconnected the return, so that there is no break in the chanttel
to
sigpalpath. Whena plugis insertedinto the sockctthe normallingcon$ec-
tions arebroken,breakingthe chennel sisnalpath and allowingan external
nt effectsunit to be patchedin to circuit.
Severalt)"es of signd prooessor
may usefullybc connectedto the channel
insertion point:
t Firstly dyna-ics controt deviccs. Thesc ar's rrni15
de-essers noiscgates.These
and gcnerally
such as oompressorE
work mosteffectivelyea 3 5ingls
t sigpalat a time. A compressorreduces dynamicrangeof a signa[ either
the
to eliminatetransientpeakswhich Bay causeowrloadi.g, or to make a
slsal tighlsl and more "punch/. A noisegate attenuates reducesthe
or
gain whenthe signal&opo below a presetlevel, to render any noiseless
ilt obtnrsivenhen there are gapsin the signal. A noiscgate may also b used
creatively, to gatethe signalfrom a reverberator.
e.g.
nl specificreverberation
via
Reverberators normallyconnected the auxiliarysends, wherea
are but
efrectisrequiredon onechannelonlyit maybe more
convenientto patch it into the insertion point, and use the weVdry mix
t control on the reverberator itselfto control the relativelevelsof tbe treated
and untreatedsignals. Operati"g in this way also meansrhat an entire
aruiliarybusis not tied up feeding processor
a which is usedon one channel
only. Other cffecti (c.g.d;gtal delaysand chonx units) maybe usedin a
h* similar rnanner.This technique not however
is suitablefor usewith effects
units ufiich do not havea treated/untreated slglal mix control.
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The Auxilia Section
The channelaruiliarysectioncomprisesfour aux scnd controlswhich arc
switchable feedsix auxiliarybusses.
to
The auxiliaryscndsallowa nuorber efrra mixe.stobc
of madefromthe input
channelsgals. Thesearxiliary nixes maybc usdto feedoutboardeffects
units (e.g.reverberators) for monitor mixesto fecd monitor wedges
or and
sidefills.
The signalfrom the channelto thc auxiliariesmaybe talcn before or after.
(PRE or PoST) the channet fader. 6e signalsourccis selectable
behveen
pre and post faderaux scnds1 and 4 and set post-faderfor sends3 to 6.
Usuallya pre-fader strnalisusedfor foldbackmixeganda post-fadersignal
for feeding cffectsunits.
ATIX I
This rotary control adjuststhe amount of signal
sent from the channel to auxiliary brs 1. The
sigal sour@ is switchablebctween r PRE and
FOST fader.
ATIX2
This rotary control adjrutstbe amountof signal
sent from the chan"cl to aruiliary brs 2. The
sipal sourccis switchable benveen'PRE and
FOST fader.
PRE/ FOST
''Ihis switchsetects *bd souroeforarxiliary
the
sendsI and 2. When thc switch is in the raised
position the PRE sigBal is setected for both
is
sen&. When the s;witch depressed FOST-
a
fader sifd is sclected.
r The PREsignalmaybe,"tty of internal
-r"*
ju-p"t linla to be PRE EQUALISER or PRE
FADER- It is factory sct to PRE FADER- See
page Tl for information on scning the jumper
links.
AIIX 3/5
Thisrotarycontroladjusts amount signal
the of
sent from thc channelto auxiliary brs 3 or 5
(depcndingon the positionof the 34 I 54 switch). The signalsourcefor
I
thisscndis FOST-fader.
ALIX /V6
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rry
This rotary control adjusts the amount sf signel scnt from the chattttel to
auifiary bus 4 or 6 (depesding on the position of the t4 I 54 switch). The
Elgal sourcc for this scnd is FOST-fader.
34t54
This switchis rsed to detcrminethe btrsdcstisationsfor AIIX 3/5 and AIIX
{6. When the switch is in the raiscd position thc rotary control AIIX 3/5
fecdsto auxiliarybus3, andcontrol ALIXtV6fccdsto aruiliary bus 4. When
the switchis depressed control ALIX yS fcdsauiliary bus 5, and control
ALIX tUj fecdsto auxiliarybus 6.
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F
Out Section
r
The output scctioncontrolsthc output sigDallevcl of thc channel and thc
rsuting of the sfuannsl thc four groupeand thc stcreomasters.
to
la
r
Ttis switch routes tignd from the channel to E
U?EI outputgroups1 andZ Thc relativeamountsof
311
trt
srgnalsentto thc two goup6 is determinedby
the positionof thc PAN pot. When the switch is
depresscd rignd from the channel is sent to
fr'
groups1 and2 Whcn thc switch is in the raised
l|Ix
trt position the signal feed to gfoups 1 and 2 is
disconnected
F
3-l
Ttis switchroutes rifd from the channel to
F
outputgoups 3 and 4. Tbc relativeamountsof
srgpalsentto the two gfoupc is determinedby
the positionof the PAN pot. Whcn the switch is
ft
PTL
EI depresscd signat from thc channcl is sent to
goups 3 and 4.
F
TDI
t-91 MX
PExo
Ttis switchroutessignalfrom the channelto thc
stcreomasters.The relativc emountsof signal
F
sent to the left and rigbt is determinedby the
position of the PAN pot. When the switch is
depresscd sigpd from the channel is scnt to
lE
masters.
PAT{ :
This rotary controldetermines assign-entof signalfrom the channelto
the
left and rigbt or odd and evcngoups. When thc pan pot is set centrally
slgnalis sentequdlyto dl selected groupsandmasen. Turning the control
F
relativelymorc rignd to thc left master and to thc
E
anticlochryisc sends
odd-numbcred groups(1 and3). Turningthe pot clockwisc sends relatively
moresigealto the right master to cvennu-bcred goups (2 anda). The
and
paDpotmaythusbe uscdtoadjrstthepositionof signals inthe stereoi-"g".
PFL F
Pressingthis Prc Fader Ligen snitch routes pre-fader sipal from the
channelto the headphone moaitoroutputson thc front and rear panelsof
the console. At the sametirne all other sgpalsarc automaticallydiscon-
E
nectedfrom the monitorscction, allowing PFIrd signal(s)to be listened
the
to in isolation. This fcatureallowsthe opcratorto listento a signalon thc
headphone, checlringthat it is clean and undistorted,before ;x F
signalup. The PFL functionis operational whethcrthc channelswitched
is ON or OFF
F
H
r
T ON
T Tbis switchis usedto turn the chnnnel andoff. Wbcn the switchis in ths
raised position the channel
on
is OFF. When thc switch is depressedthe
channelis ON. Whenthe channelis turnedOftr thc feedsto all auxiliaries
(pre or post fader), and to the goups andmasters muted.
t PEAK
are
t This rcd LED (ltght enitting diode) ill'rminatc uftcn the channel ap-
proaches overloadsituation.The LED is actiratedSdBbeforetbc onset
an
of clipping(distortion). Thc input GAIN controlshouldbc adjustedso that
f the LED doesnot flash cxcept on the highestlercl, brief [ransisats. Using
excesqive amountsof booet on thc chenneleqrnliscr may causedistortion
on the'ihannel if this happcosturn thc ioput GAIN control down.
t FN)ER,
Thc channcl fadcr is a lfi)mm travel audio fadcr. It adjusts the level of
t sigDal sentfrom 1f,schannelto the goupq stercom*sters and post-fader
auiliary scndr
l- To allow the optimum rangeof control thc fadcr shouldbc run closc to the
0 position on the scale. The input GAIN control shouldbc set to allow this.
I
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Master
Section
The masterseclion is sinratedon the rigbt hand side of the console and
compriscsthc four subgroupgthc stcrco mastergthc stereoreturns, the
auxiliarymasters thc ssmmrrnicstions
and section-
SoundtnetSOLO - 13-
I TheSubgroups
T
Four subgroups provided on the console.
are
Sipals maybc routedto thesefrom anyof the
input modules. Each subgroupfeeds an in-
dividualoutputonthc rearpanel,Thesubgroup
signalmayadditionally routed to thc stcreo
bc
masters.
The group output is electrooically balanced
fLEI andappcars a maler pio }(LR connectoron
at 3
the rear panelof thc consolc
r',,nr
trl Group Fader
The group fader is a 1ffimm audio law fader.
1- Thiscontrolsthe levelof signalsenttothe gFoup
' output and to thc masterbusses signalfrom
the groupis routedto them-
if
I PAI{
Thisrotarycontrolisopcrativeonlywhensignal
1- from the group is routcd to the left and right
master busses(i.e. when the MIX switch is
depressed" adjusts relativeassignment
It thc of
l- signal from the group to the left and right
mrsterbusses. Whenthe PanPot is setcentral-
ty stgoal is sent equally to the left and right
busses. Turning thc control anticlockwise
I scnds relativelyEorc srsal to thc left busthan
to the ngft, and vicc trcrsL Thus the control
maybeusedto adjusttbc positionof the group
l- signalin tbe stereo
AFL
i-age.
I Prcssing After Fadcr Listen switch routes
this
post-fader srgDalfrom thc group to the head-
phonemonitor outputson the front and rear
panelsof the consolc. At the sane time atl
other slgnalsare automaticallydisconnected
from the monitor section,allowing the AFI-ed
signal(s) be listened in isolation.
to to
MTT(
This switchroutesstgnalfrom the group to the
stereo mastermixbusscs the console.When
of
theswitchis in theraiscdpositionthe feedfrom
thc groupto thc masters disconnected,
is when
thc switchis dcpressed signalis routed to the
masters.The relativeassignment group sig-
of
nal to thc masters controlledby thc pAh{pot.
is
- t4- Soundtrace SOLO
Auxilia Masters
Six arxiliary masterg one per aruiliary bus, are provided. Each of these
its'lewl, and sendsit to the
takesft6 signalfrom the aruiliary bus,adjr,rsts
appropriateauxiliaryoutput.
and appcaron 0.2y jack connectors
The auxiliaryoutputsare unbalanced
on the rear panel.
LEVEL
A|'D( ]IASTER This rotary control adjusts the level of signal
sent from the auxiliary brs to the auxiliary out-
tj-.f^ put. For optimum pcrformancc this should be
{q fLEI
set to around 7 or 8 on the scale,and the input
level of the effects unit bcing fed from the arx
output shouldbe adjustedto operatewith this
level sf signal
ATL
Pressing this After Fadcr Listen switch routes
post-fader(i.c. LEVEL control) srgnalfrom the
aux masterto the headphone monitor outputs
on the front and rear panels of the console. At the same time all other
sigals are automaticallydisconnectedfrom the monitor section,alowing
the AFLcd sigodG)to be listenedto in isolation.
i
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I
T
T
f StereoReturns
+
Four stcreoreturnsareprovided:thesctakea stereoinput sigal, adjustits'
and route it to the groupsand/ or stereomasters.
level and balance,
The unbalanced inputsto eacbstereoreturn are acccssed a 02f stereo
via
f
jack on the rear panelof the console.The jacls arc wired tip - left, ri"g -
ngnt, slecve- srgnalground.
+ STEREE RET I
LEVEL
This rotary control edjuststhc levet of sifal
+
sent from tbc stereorcturn to the destinations
selected thc routi'g switches
by (i.e. the groups
andstercomastsls).
f
BAL
This rotary control adjuststhe balancebehpeen
the left andrigbt rigrr When sct centrallythe
T
*.
balancebct*rcn left and right is eqo"l (assn--
rngthat the left and rigbt input signalsare equal
tr
in level). Turning the control anticlochpisc in-
creases levelof the left signalrelativeto the
the
left signal,andvicerrsa.
t
vaEl
ryr I ',.El
ta
'fhis switchroutessignatfrom the stereoreturn
ry I
mrEl
groupsI and2. Whea the switch is depressed
siglal from the channelis sent to groups 1 and
2 When the switchis in the raiscd positionthe
srgpal feedto gloups 1 and 2 is disconnected.
H
il This spilch routessigpalfrom the stercoreturn to output gloups 3 and 4.
When tbe switchis dcpresscd
and 4.
sgal from the channelis sent to groups3
ffi Mtx
This switchroutessignd from the stereorcturn to thc stereomasters.Wben
H the switchis depresscd d from the channel scnt to masters.
sign is
il
F
f
*
The Communications Monitor
and Section
This comprisesthe tdkback controls and the
headpbone monitor scdion.
TALKBACK
Otl-fm
This threc pr4 female XLR connector is used
to accessthc clectronically balanced talkback
microphone input. Phantom power is not
provided on the talkbackmicrophoneinput.
TALK
\
This rotary control adjrsts the level of the
tdkbact tipd.
AIIX
Holding down this non-latchingswitch routes
tdkback sigBat all sh auiliarybusses simul-
to
taneously.
GR.OTJP
Holdirg down this non-latchingswitch routes
talkbact sifal to dl four group bussessimul-
taneously.
Monltor
Headphone
The headphonemonitor fepds a stereo jack
socheton the front panel of the consote.
errutrl
The headphone monitm normallymonitorsthe
sterco masteroutputg but may bc switched to
monitor a two-trackrcturn. Whenevera PFL
or AFL function is sctcAcd on the consolethe
o
FTE headpbone monitoris automati*lly reassigned
to monitor the PFUAFI-ed sigpalG).
MON/PHONES
This rotary control adjrsts the level of signal
scnt to the headphonc output socket.
2 TRACK
This switchsclecs the sourceto bc monitored
b th. headphone monitor scaion. When thc
switchis in the raisedpcition the stereomaster
signd is monitored Deprcssing switch as-
the
sigP.the sigmal from the two-trackreturn to the
headphone monitor. The two track return ioput is accessed a 02s
via
stereo jact connector the rear panel. This is wircd tip - left sigDal,
on nng
- rigbt sigal, sleeve sigDalground.
-
The facilityto monitorthc two track tairc rctura hastwo main applications:
1. Recordedprqgr.--e rnaybc easilyplayedback for audition without
the needlo useup or re-patci input channeb.
2. While slereo recordi'g is in progresstbe cdrecr can monitor the
rccorded off tapc to cnsurc that thc rccordcd sigpal is acccptable
-"f"1
(e.g.heefromtapcdropouts).
PHONES
This 02f stereojact headphoncoutput nay bc uscd with any pair of
headphones 2(tr ohns or grcaterimpedancc.Thc sockedis wirea tip -
of
left ri"g - r,ght sigFal,sleeve- srsal ground.
"igal
StereoMasters
The stcreo mesterfaderscontrol the level of rignqf sent to the master
outputs. This signd is derivedfrom the left and right mastermix buses.
The stcrco output .igd is clectronicallybdanccd rnd appcarsat a pair of
mde )(LR connectors the rear panel.
on
MonoOutput
The monooutputsiglal thesu- of tbetwo componcnts the stereomaster
of
sigtat The level ef srral sent to the mono output is controlled by the'
MoNo fader. lbe nono output sigpd is clearoaically bdanced and '
appoarsat a malc )(LR connectoron the rear panel
Thc monooutputis sctat thefactoryto deriveits sigmnls from postthesterco
mastcr faderg but may bc resct to dcrive its' signal from pre the stereo
faders, This is accomplishcd movingintcrnal jn-pct linlrs on the PCB
by
(scc the Jumpcr I inkt scctionfor ftgthcr information).
''?lt';.
'trs
t '
I
MeterPod
T-
I
Tb-emeter pod housesthc six level meterstogetherwith the AFL/"FL
Tr I
Operating
indicatorLED and the powersupplystatusindlcators.
Levels
tI Output levelsshouldbe adjusted that dgnalseverage
so (HB on the meters,
ril andpeakat *3d8.
1-{
I
t
-t
These10elementbargraphdisplays
gtroupoutputs.
monitor the output levelsof the foru
ril I
trR
This pair of l0 elementbargraphdirpl"y monitorsthc output level
tr
I of the
stereomaster outputs.
*r IndlcatorLEDs
sou) This I.ED is iuunimted whenever pFL or AFL switch
is
any
console depressed AFL or pLF aaive).
on the
(i.e.
t * 4tv This LED is illrrminated whenthe phantompower is switchedon
Phantompower is switchedon and off foi all channelscolleai"ry
uy
JIE switchon the rear panelof thc console. "
PowEn' This LED iltuminatesufren thc consolc is switched
on and
indicates stat's of the * and- 17volt DCpo*cr rair( of the console.
the
ETE both these
If
rails are at the corrcctvoltagethe i.Ep illuminates. If either or
both of theserailsare not at the*rr""t the LED wilt not illuminsls.
"ortage
ilE
ry
trl
nf
tr
r
{
Internal
Power
Supply
i,:'#$tr;
Hffi1,[::,'H3:f#:1;ffi,H';'#iil[:ff
fJlli.#,'il'il:h'#'ffi H-,?Td,T,"thTil3:l
',llt*:ift
The internd supplyprovidesthrec regulatedDC toltages: *48v for phan-'
tom power, * l?v and -1?vfor the circuitry of thc conrcle.
Theconsole turnedon andofrby mc'ns of the FOWER ON switchon the
is
rear panel.
ror at?A'
arc rsnlma use
tlpe
T;-ff'rff+YfffS *';minput
External
PowerSupply
An erlernal power supply is supplied with consolesof 32 input modules.
The erCernalsupplyis a 2u high 19"rack mountiogu"it. Mains input to the
powersupply via an IEC typconnector.The threcDC voltagerails from
is
the powersupplyis fed to tbe consolevia a cablel.t6iaxting in a multipole
bayonettypcconnector.A mainsvoltagcselector fitted to the rear panel
is
of the powersupply.This mustbe adjusted suit the local supplyvoltage.
to
The consolemaybe uscd with AC voltagesin the regions 100vto 120vand
ffiv to240vat 50Hzto 60Hz
The crCernd supplyprovidesthreeregulated voltages:* 48vfor phan-
DC
tom porcr, * 17vand -17vfor the circuitry of thc console.
The console turnedon andoff by means the FOfryERON switchon the
is of
front panelof the power suppty.
Tbe powersupplyfussare t)?e T3.15Afor uscon nartt* voltagesof ffiv
to}A0v,andatypeT4A for useon mnincvoltageof l(X)vto 120v.
I
I
t
T
]
RearPanel
Gonnectors
Channel
Microphone )(LR (fenale) Balanced
I in g StcreoJacL Balanced
Inject StereoJack Sendand Return Unbdanced
Direct Jack Unbalanced
Master
Group Out )(LR (male) Balanced
StereoMix Out )(LR (-de) Balanced
Mono Out )(LR (nrale) Balanced
GRP, Mix & Mono Injeas StereoJack Sendand Return Unbalanced
Anxiliary Out Jack Unbalanced
Monitor Out L&R on StercoJacl Unbalanccd
Tape Send L&R on StercoJac& Unbalanccd
Tape Rerurn L&R on StereoJacL Unbalanced
StereoR,eturn I-&R on StereoJact Unbalanced
Connectors wired
are thus:
Stereo Jack uged lor balaneed mono rlgnrl:
Tip - Hot (inphase)
signal
Rtng - Crold(antiphasc)signd
Sleevc SrgpdGround
-
JackuredrtereoInprnor odput rlgnel:
Stereo
Tip - Irft sigDal
Ring - Right srgnal
Slecra- Sifd Ground
Stereo Jrck ured lor Inlest (lnrertlon polnt):
Tip - SignalSend(output)
Return (input)
Ring - SigDal
Sleeve Signd Ground
-
XLR Connectors
(maleand female)are usedfor batancedsignalsand
All )(LR connectors
wired:
Pin 1- Stgnal
Ground
Pin 2 - Hot (inphase)sipal
Pin 3 - Cold (antiphase)
rigtd
lnterconnection
Ttis section behrecnthe consoleandother
how interconnection
describes
equipmentshouldbc made.
All audio inputs and outputsof the consolcare bdanced or unbalanced.
When the consoleis interfaced with other cquipmenf particularly equip-
ment with unbalancedconneclions, is important to pay particular atten-
it
tion to howthe screens connected order to minirnisehum loopsand
are in
other interference.
shouldbe madeasfollows:
Connectlons
Batancedouput to bdancedinput - Connectthe screenat the destination
only.
Balancedoutput to unbalanced input - C.onnedthe screen at the souroe
only. I inlr the cold output toground at the output connector.
Unbalancedoutput to balanccdinput - Conncctthc screcn at tbe destina-
tion only. C-onnect cold input to ground at the input connector.
the
fP - lld lh FhD) dgnr,
BI|G -Cold (.rtr ph-) Egnd
STEFYE- 8ctst f3tound)
Storeo&d< Plug wircd for conncctionb ! Bdlnccd hPut
TPftrn 0.'F.r0 Sagrd
siE -td {cdF4 Slgnrl
8[EA/E-8ctrr Gtqrnd)
$crco Ject Plugwircdbr connoclion rn hnrtion Point
b
TP -Egn l
8[.EEVE.8crrr Frqtnd)
llom Jrck Plugwiradb'roonncction rn
b
thbrlrnod Otprrt
Pli t - 8arn frtund)
/-O\
P rr2-ttr0nphE )-9d {O r O \
Prr 3 - Cold(.nti pha) tl.gnrl
\]-7
Melc md Fcmdc )GF ConncAon
t sd b Bdenccd hprrt rnd Onputf
G--.--rr-^-- -
^-.
11. lnstallation
The performan@ anyhigh quality PA systeq ufiether pennanentor on
of
the road can very cartly bc dcgradcd by poor installation.This chapter
outlinesthe mostoommon problemg and c4plainshow bcst to avoidthem
.,
't't.
L
-ry
Earthinq
It is of paramountimportance havean effectivemaitt"carth.If the carth
to
is poor, the sptcm will tend to picl up mainq,
born interference,and the
user maybeat risk from elearic shock.
Bstablishment a good earth canbc assured
of by
o l. Ibe usedof beavf gluge copperwtrc,prcferablya stngle
condnuous hngth.
o 2. Ensurlngthat rnyJolns or connecdonrdong tbe earth path
art hesh, rnd not loosc or corroded"
o 3. Mnklng thc cartb usedbytbc rudlo cqulpmentceparate
from the mainscarth uscd by lightlng and other equipment
Greationof a good malnsearth
If the qualitysf tr rneincearth is in doubt,it is ahap advisable make a
to
new one. To do thi\ a copper stakeabout foru fcct in length shouldbe
hammered into the groundoutsidethc building. The heavyduty coppcr
earthingwire shouldbe clampedto the stakeby meansof a purposebuilt
, edhog clamp (obtainablefrom anyelectrical cfrolesalers).
Connectlng
equlpment earth
to
AII in the PA sptem mustbe conneded to earth. The most
"quipment
suitables)stemof earthingis a dual star-points)6tcm The first star-point
is at the nixing console. All effeas units and other siFal processing
cquipment locatedat the nixing position shouldbc conneaed to earth via
the consolechassis.The sccondstar-pointis at thc amp rack. The earths
of all cquipmentsuchescrossorrglirnitersand rmplifiers in the rack(s)
sbouldbc conneclcdtogetbcr,and cefihed to s singlepoint. Both star-
points shouldbe conneaed to fts mainsearth by thr shortest possible
length of heavyduty copperwire.
JumperLinks
Jumpcr links are providedon tbe input and mastcrPCBs to allow various
options to be seleaed.
InputPCB
r inlrsareprovidedto allowthesignalsoruocfor thc auxscndstobe selected
(seediagram).
-
{nc*ocySe+ PCB(P12364)
InputChannel
Fitting jumperlinkin this position
rT-(] a
sets aux 3/4 (5/6)POSTFADER
LK 21 Fitting jumperlinkin this position
p'J
rT_C a
setsaw3l4 (5/6)PREFADER
LK23{
w
i
rrn Frtting jumperlinkin this position
a
setsaux 1 and 2 PREFADER
r-rc Fitting lumperlinkin this position
a
setsaux 1 ANd PREEQUALISER
2
LI(21, u/tich consists 2 pairs of link pins rclatcs to arx scnds3 &4 (or
of
5&6 if the $6 switchis depressed). Thesclinlrs sclectthe signalsourccfor
thesesends, c&ich maybe PRE or POST fadcr. The links are factoryset
to POSTFADER. Movethejumper li"lr to tbe other pair of pinsto select
a PRE FADER srgpal
lJ(JB,cfiich consists 2 pain of linlr pinsrelatesto arx sends &2. These
of |
linlrc seled the sourcc the PRE *ignd to thescscnds,The POSTsignal
for
is unaffercted the scttingof these
by jumper linlq. The linls are factoryset
to PRE FADER. Move tbejumpcr link to the other pair of pins to select
a PRE EQUALISER signal.
Master
PCB ,
' 6,.
:
r inkq are providedon tbe masterPCB to sele,ct signalsouroefor the
the
MONO output fader. The sourcefor this may bc pre or post the stereo
faders. The linlrson thisPCB consist zero Ohm resistors
of which mustbe
solderedinto placc.Tbe monooutputis factorysct to deriveits'sigal from
POST the stereomaster faders.
For a POST stercomastcrfadersscnt zero Ohm rcsistorsare soldered
acrossthe padsmarkcdLY\n and IJQI.
To resetthe monofaderto deriveits'signd from PRE the stereomaster
fadersremovethe zcroohn resistors acrossLIo0 snd LIQI, and rcplacc
tbem with nvo zeroOhmresistors
solderedacrossLK18 and LK19.
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