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 / 8Ω Output
9. 1-Volt(RMS) / 600Ω Output
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...
The J. W. Davis DT-100D Tuner has been specifically engineered with features for commercial and
industrial applications. The monaural output combines incoming stereo signals ensuring full frequency
response distribution throughout each speaker’s coverage area. The memory keys allow the desired AM/
FM stations to be preset to discourage tampering. A separate music-on-hold amplifier permits the volume
level of the music that is provided to incoming calls to be set separately from the line level out to the power
amplifier. A 12 VDC power connection is available for emergency power or for use in remote locations. A
memory chip retains station memory for 14 days if all power is lost. Large digital display permits easy
station identification. All necessary accessories for tuner use are included. 5 year warranty.
1. Power On/Off Button
2. VFD Display
3. FM Stereo 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
For FM reception, connect the 75Ω antenna then to the FM antenna threaded connection at the rear of the
unit. Connect the supplied AM loop antenna to the push-to-lock terminals.
1. Select AM1-AM2 or FM1-FM2-FM3-FM4 with the BAND (4) key.
2. Press the SEEK+ or SEEK- (8) buttons to select a frequency manually, or the SCAN (7) button to
automatically search for stations. Using SCAN, DT-100D will pause for 5-seconds on each station it
receives, press SCAN again to stop at selected frequency.
3. FM ST button works only when Output is in Stereo mode. Pressing the button to off, LED off, allows
DT-100D to tune in weaker FM stations. NOTE: If FM ST LED is off the output of tuner is mono.
4. AUTO SCAN button, if pressed, DT-100D will scan and save in the Memory Pre-Sets all tunable
frequencies until all 40 FM then 20 AM stations are locked in. Scan starts from lowest frequency to
highest frequency for each band.
5. To program a selected station, simply press and hold the desired Pre-Set number for 3 seconds
until VFD flashes three times to confirm. Follow this procedure for all 40 FM and 20 AM Pre-sets.
6. The tuning knob allows user to tune to desired station if the SEEK(+,-)or AUTO SCAN does not find
a desired station.
The DT-100D may be operated from a 12VDC power source. Screw terminals
are provided for this purpose. When connecting the DC source, ensure that the
polarity is correct and that the DC supply is protected with a 1A fuse. (Note :
The power On-Off switch is bypassed when operating the DT-100D from a
12VDC source. For power backup, connect a 12VDC source to the 12VDC
Power Connection. The DT-100D will continue operational status if AC power
is lost.)
The mono signal output of the DT-100D tuner is accessed from either of the two RCA jacks located on the
rear panel. The enclosed RCA patch cord should be connected between either of the RCA output jacks
then to an Aux/Line input on the amplifier. Two RCA output jacks are available to feed same tuner signal to
two systems. If Stereo output operation is desired, simply select Stereo mode via switch. The output level
may be adjusted by the volume control located near the line output jacks. If your installation only has
microphone level inputs available, call J.W. Davis Customer Service for different types of attenuaters to
modify mic level inputs.
MUSIC-ON-HOLD
A separate 1-watt@8Ω/1-volt@600Ω amplifier allows the music-on-hold feature to be controlled indepen-
dently of the primary RCA output. To facilitate station tuning and setting the desired volume level for mu-
sic-on-hold, it is suggested that a speaker be connected to the special 8 ohm output. This is also useful
for monitoring purposes. Care should be taken to avoid signal distortion due to overdriving the
telephone’s music-on-hold input.
TUNER OPERATION
Due to the steel construction of the tuner, tuned antennas are not fitted within the cabinet. An AM loop
antenna and FM 75Ω antenna is enclosed to provide the desired reception. Your DT-100D tuner has
been tested to perform well in poor reception areas. However, should you experience difficulties, the
tuner’s antenna may be compromised by a metal building or a similar obstruction. In such cases, we
suggest connecting an external mounted FM antenna using RG-59 coax (purchased seperately) to assist
the DT-100D’s signal reception ability.
ANTENNAS
ALTERNATE DC POWER SOURCE
Hardware Included:
Rack mount kit (1RU)
Dual RCA patch cord (2’)
Dipole FM antenna w/75Ω
to 300Ω balun
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 8Ω or 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
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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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