Whenencounteringexcessiveinterferenceorbackgroundnoise,switchtheSeparationtoHi
Blend.
Thispositionblendsthehighfrequenciesoftheleftandrightchannelstogetherprovidinga
goodcompromise,betweenmoderateseparationandmoderatesuppression,ofout-of-phasenoise
anddistortion.Thispermitsyoutomaintainfullfrequencyresponse,differingfromconventional
noisefilterswhicheliminatenoisebyreducinghighfrequencyresponse.Note:IftheHiBlend
positiondoesnotsatisfactorilyreducestereonoise,switchingtheModedisplayfunctionfromAuto-
matictoMono(fourthpushbuttononright)completelyeliminatesallstereonoise,buttheprogram
willbereceivedmonophonically.
Thebottompushbuttonontheleft,Dolby.Off-On, interposesorremovesa Dolby
TypeB decoderintheoutputaudiolines,-affordingyouthebenefitsoftheDolby
noisereductionsystemwhenthestationistransmittingDolby.
Theupperthreepushbuttonsontherightareformutingfunctions.Theyareinterrelatedand
depressinganyonecancelsouttheothertwo.Themutinglevelissetbyanadjustmentontheback
jackpaneloftheset(refertoBackPanelMutingInstructions).
objectionable(withthehighperformanceoftheSequerraTunerthisnoiseappearsaccentuated),it
isusefulingivingyoua truerunderstandingofwhatisreallyhappeningthroughouttheentire
broadcastband.Itpermitsyoutohearbroadcasts,witha veryweaksignalstrength,thatare
beneaththepresetmutinglevel.
MUTING
MUTING
•NTER
BllOfO
Thesecondpushbuttondown.Muting:Inter-Station,mutesallundesirednoise
(beneaththepresetmutinglevel)whiletuningbetweenstations.
Thethirdpushbutton.Muting:Inter-Stereo.willmutenotonlyinter-stationnoise
butalsomonophonicbroadcasts,allowingyoutoreceiveonlystereobroadcasts.
Thereisanothermutingsystemdesignedintothetunerwhichisnon-adjustable.(TheMuting
LeveladjustmentisontheBackJackPanel).Ithastodowithoff-centertuningnoise.Tobest
understandit,considertheDisplay:Tuningpattern.Whena stationisproperlytunedthetraceison
thecenterline.Asthetraceapproachesandgoesdownthesidesofthetuningpattern(offcenter
frequency)itisautomaticallymuted.ThismutingcircuitoperateswheneitherInter-Stationor
Inter-Stereomutingisincorporated.Itisby-passedwhenMuting:Offisengaged.
Thefourthpushbuttonontheright.
Mode:
Automatic-Mono, intheautomaticposi-
tion,
automaticallysenseswhetherthereceivedsignalisstereoormono,andchan-
nelsthesignalthroughthepropercircuitry.ConsequentlyitisusuallykeptintheAutomaticposi-
tion.
TheStereoPilotwilllightwhena stereoprogramisbeingreceived.Whena monoprogramis
beingreceivedthesetisdesignedtobypassthemultiplexdecodingcircuitry,thuseliminatingany
possiblestereonoise.WiththeModepushbuttondepressedtoMono,itwillreceivestereoprograms
monophonically.Thisisusefulineliminatingallstereonoiseswhenstereoprogrammingisbeing
AUTOMATIC
MODE
5174
b
OOLBV
Depressingthetoppushbutton,
Muting.Off,
cancelsoutallmutingfunctions.Inthis
modeallinter-stationnoiseisheard.Althoughmostpeoplefindinter-stationnoise
