J. W. Davis & Company DT-100D User manual
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 • [email protected] • www.jwd.com
OPERATING INSTRUCTIONS
AM/FM PLL Synthesized Digital Tuner with Music-On-Hold
Model DT-100D
The Mark of the Professional...
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 • [email protected] • www.jwd.com
WARNING: THIS APPLIANCE MUST BE GROUNDED
RISK OF ELECTRIC SHOCK
DO NOT OPEN
Do not use a “3 to 2” power cord adapter or cut the AC power cord ground
prong on the AC power cord plug. Either of these actions will cause the J.W.
Davis & Company warranty to be voided.
7. MOH Output Level Control
8. 1-Watt / 8ΩOutput
9. 1-Volt(RMS) / 600ΩOutput
10. 12 VDC Input
REAR PANEL
1. FM Antenna Socket 75Ω
2. AM Loop Antenna Terminals
3. Line Output Level Control
4. Mono / Stereo Output Switch
5. Left / Mono-1 Output
6. Right / Mono-2 Output 11. 120 VAC Input
The Mark of the Professional...
TheJ. W.Davis DT-100DTunerhas beenspecificallyengineered with featuresforcommercial and
industrialapplications. Themonauraloutput combinesincoming stereo signalsensuring fullfrequency
responsedistribution throughout eachspeaker’scoveragearea. The memorykeys allowthedesiredAM/
FMstationsto bepresetto discouragetampering.Aseparate music-on-holdamplifierpermitsthe volume
levelof the musicthatis provided toincomingcalls to besetseparately from thelinelevel out tothepower
amplifier.A12 VDCpowerconnection isavailable for emergencypower orfor use inremote locations. A
memory chip retains station memory for 14 days if all power is lost. Large digital display permits easy
stationidentification. Allnecessary accessoriesfortuner useareincluded. 5 year warranty.
1. Power On/Off Button
2. VFD Display
3.FMStereo LED
4. Band Selector Button
5. Station Scan Button
6. FM Stereo Button
7. Auto Scan and Store Station Button
8. Station Seek Up/Down Buttons
9. Station Pre-Set Buttons
10. Station Tuning Knob
FRONT PANEL
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
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 • [email protected] • www.jwd.com
DT-100D SPECIFICATIONS
FM SECTION
Range …...….…….…………….…..…………....................87.5MHz~108MHz(0.1MHz steps)
Usable sensitivity……………...……………………………………………………….….15dBu
50dB quieting sensitivity………..………………………………………………………...17dBu
Signal to noise ratio…………………..……….…………………………………………..53dBu
Stereo separation (@ 1kHz)…………...……………………….……………….….....….43dBu
AM SECTION
Range ……………………………........………….................530kHz~1710kHz(10 kHz steps)
Sensitivity (20 dB quieting)…………….....……….…………….…..……………………..23dB
Signal to noise ratio (@ 50uV)…………….………….…………..……………………….40dB
AUDIO SECTION
Line Output …………………………………......……….…….…...……..1V (variable) at 10kΩ
MOH Output …………………....…………………...……....……1Watt at 8Ωor 1Volt at 600Ω
POWER SUPPLY
A/C Power.................... …...…..………………..……………...………...………AC120V, 60Hz
D/C Power................... ……..…....……………...……………...……...…............………DC12V
Power Consumption………..…..………...….…...…….………….……..……………...…30VA
DIMENSIONS
W x H x D ……………..…………………....……………...….........................17” x 1.75” x 10.7”
Weight…......….…..……………………………......................….....…...………………..6.2 Lbs
The Mark of the Professional...
The Mark of the Professional...
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 • [email protected] • www.jwd.com
This Page Intentionally Left Blank
The Mark of the Professional...
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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 • [email protected] • www.jwd.com
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