NEW TECHNOLOGY OLD RELIABILITY
J.W. Davis & Company •
3030 Canton Street • P.O. Box 710219 • Dallas, Texas 75371-0219
Sales 800-527-5705 • Fax 800-388-9106 • Corp 214-651-7341 • Fax 214-939-0328 •
The Mark of the Professional...
SIGNAL
ForFM reception, connectthe75Ω antennathento the FMantennathreadedconnectionat the rearofthe
unit.ConnectthesuppliedAMloopantennato the push-to-lockterminals.
1. SelectAM1-AM2or FM1-FM2-FM3-FM4withthe BAND(4)key.
2. Press theSEEK+or SEEK- (8)buttonsto select afrequencymanually,or theSCAN (7)buttonto
automaticallysearch forstations. UsingSCAN,DT-100Dwill pause for5-secondsoneach station it
receives,press SCANagainto stopatselected frequency.
3. FMSTbuttonworks onlywhenOutputis inStereo mode.Pressingthebutton tooff, LEDoff, allows
DT-100D totuneinweaker FMstations.NOTE:If FMSTLED isoff theoutputof tuner ismono.
4. AUTOSCANbutton,if pressed,DT-100D willscanand saveinthe Memory Pre-Setsall tunable
frequenciesuntil all 40FMthen 20AMstationsarelocked in.Scanstarts from lowestfrequencyto
highestfrequencyforeachband.
5. Toprogram aselectedstation,simply pressandhold thedesiredPre-Set number for3seconds
untilVFD flashesthreetimes to confirm.Followthis procedureforall 40 FMand20AMPre-sets.
6. Thetuning knoballowsuser to tunetodesired station iftheSEEK(+,-)orAUTO SCANdoesnot find
a desired station.
The DT-100D may be operated from a 12VDC power source. Screw terminals
areprovidedfor thispurpose. WhenconnectingtheDC source, ensurethatthe
polarityis correctand that theDC supply isprotected witha1A fuse.(Note :
Thepower On-Offswitch isbypassed whenoperating theDT-100D from a
12VDC source. For power backup, connect a 12VDC source to the 12VDC
PowerConnection.TheDT-100Dwill continueoperationalstatusifACpower
islost.)
Themono signaloutput oftheDT-100Dtuner isaccessedfromeither ofthetwo RCAjackslocated onthe
rearpanel.The enclosedRCApatchcordshould beconnectedbetweeneither of theRCAoutputjacks
thento anAux/Line input ontheamplifier. Two RCAoutput jacks areavailabletofeed sametuner signalto
twosystems. If Stereo output operationisdesired,simply select Stereomodevia switch.Theoutput level
maybeadjustedbythe volume controllocated near theline output jacks.If your installationonly has
microphonelevelinputsavailable, call J.W. Davis CustomerServicefordifferenttypesof attenuaters to
modifymiclevelinputs.
MUSIC-ON-HOLD
Aseparate1-watt@8Ω/1-volt@600Ωamplifierallowsthe music-on-hold featureto becontrolled indepen-
dentlyofthe primaryRCAoutput. Tofacilitatestation tuningandsettingthedesired volumelevel formu-
sic-on-hold,it issuggestedthata speakerbe connectedtothe special 8ohmoutput. Thisisalso useful
for monitoring purposes. Care should be taken to avoid signal distortion due to overdriving the
telephone’s music-on-hold input.
TUNER OPERATION
Duetothe steelconstruction ofthetuner, tunedantennasarenotfitted withinthe cabinet. AnAMloop
antennaand FM75Ω antennaisenclosed to providethedesired reception. YourDT-100D tunerhas
beentested to performwellinpoor receptionareas. However,should youexperience difficulties, the
tuner’santenna maybecompromisedby ametal buildingorasimilar obstruction.In suchcases,we
suggestconnectingan external mountedFM antennausing RG-59coax (purchasedseperately) toassist
theDT-100D’ssignalreception ability.
ANTENNAS
ALTERNATE DC POWER SOURCE
Hardware Included:
Rack mount kit (1RU)
Dual RCA patch cord (2’)
Dipole FM antenna w/75Ω
to 300Ωbalun
