Manuel d'utilisation / d'entretien du produit ur-700 du fabricant Telex
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T elex ® Operating Instructions UR-700.
GENERAL INFORMATION The Telex Model UR-700 Receiver and associated Transmitters is a full diversity system operating within the frequency range of 690 to 725 MHz on specific pre-set frequencies.
Displays 1. A 5 segment LED light array for AF that aids in setting microphone gains and monitoring receiver microphone and line level outputs. Light numbers 4 and 5 have a Peak Hold feature. 2. A 1 segment LED light for RF that aids in checking the transmitter and monitoring for the possibility of initial interference.
UR-700 Receiver Specifications Frequency Range . . . . . . . . . . . . . . . . . . . . . . . 690-725 MHz R.F. Stability . . . . . . . . . . . . . . . . . . . . . . . . 0.005% or better Modulation Type . . . . . . . . . . . . . . . . . FM, 40 KHz nominal Type .
Model HT-700 Transmitter Specifications Power Output (Terminated) . . . . . . . . . . . . . . . . . . . . 10 mW, Antenna . . . . . . . . . . . . . . . . . . . . . . . . Permanently attached. Modulation . . . . . . . . . . . . . . . . FM, +/- 40 KHz Deviation, 50 us pre-emphasis.
Model WT-700 Transmitter Specifications Power Output (Terminated) . . . . . . . . . . . . . . . . . . . . . 10 mW Antenna . . . . . . . . . . . . . . . . . . . . . . . . Permanently attached Modulation . . . . . . . . . . . . . . . . . FM, +/- 40 KHz Deviation, 50 us pre-emphasis.
Figure 1 Front Panel Power Switch: When turned on, one of the diversity lights will illuminate. RF Display: A 1-segment LED Display indicates the presence of the signal from the transmitter. Diversity Display: LED’s indicate diversity operation. AF Display: A 5-segment 3 color LED Display indicates the relative modulation of the microphone.
Figure 2 Rear Panel Antenna Jacks: Two antenna jacks for posi phase diversity recep - tion. Attach an antenna to each jack. Mic Level: XLR type jack connects to balanced mic input of audio sound system (Amplifier/Mixer). Pin 1 ground, Pin 2 +, Pin 3 -.
Receiver Set-up Connect the supplied AC power adapter to an AC outlet supplying 105 to 125 volts AC, 60 Hz. The 230 volt export model should connect to an AC outlet supplying 210-240 VAC, 50-60 Hz. Connect the UR-700 to your equipment: Insert the appropriate audio connector and cable into the mic or line receptacle on the rear of the UR-700.
Figure 4 HT-700 HT-700 Power and Mute Switches: Located on the bottom of the handle. Microphone Gain: Controls the gain of the audio circuit to prevent under or over modulation. Set-Up NOTE: Do not use carbon-zinc batteries. 8.4 volt Ni-Cad batteries may be used but will yield shorter run times.
Figure 5 WT-700 WT-700 Power and Audio Switches: Located on the top of the case. Microphone Gain: Controls the gain of the audio circuit to prevent under or over modulation. Microphone Jack: wired as follows: Pin 1 Ground Pin 2 Mic Pin 3 +5 volt bias Pin 4 +5 volt bias fed through a 3K ohm resistor for 2 wire electrets.
Set-Up NOTE: Do not use carbon-zinc batteries. 8.4 volt Ni-Cad batteries may be used but will yield shorter run times. Open the battery door and install a 9 volt alkaline battery. Be sure the battery polarity matches the diagram inside the battery holder.
The RF light on the receiver should now be illuminated. Turn on the audio (mic) switch. Speak into the microphone and adjust its gain so that the Audio Meter on the receiver just illuminates the 0 (or yellow) light on the loudest sounds. If necessary, vary the line level on the back of the receiver to suit your equipment.
The diversity antenna system operates most efficiently when the two antennas are separated as much as possible. The antennas should be mounted so that they are at least 6 feet (2 meters) apart for best results. They should be at least 2 feet (60 cm) from nearby objects.
Figure 7 Antenna Placement with Accessory Brackets and Cables If possible, do not mount the brackets on a wall. See Figure 7 for bracket and antenna placement. Antenna Connection Attach the two antenna cables to the back of the UR-700. Be sure the connectors are tightened securely.
Installing Rack Mounts The UR-700 is supplied with rack mounts for both double and single mounting in a 19" equipment rack. For single mounting, the long and short rack “ears” are used. For dual mounting, use the short “ears and the mid brackets from two UR-700’s.
Double Mounting: Align the mid brackets (Item No. 2) with the holes on the adjacent sides of each unit. Install the previously removed screws. Insert an additional screw (Item No. 4 provided in the parts pack) into the remaining holes. Tighten all screws securely.
ACCESSORIES AND REPLACEMENT PARTS Model AB-2 Combination Antenna Bracket with hardware and 10 foot (3 meter) coaxial cable TNC Connectors. Use with Model CAL-5 Antenna. Order No. 71138000 AC Power Supplies 120 V olt, 60 Hz 730131 230 V olt, 50 Hz U.K.
Model ALP-450 450-900 MHz Directional Log Periodic Antenna includes mounting hardware and 10 foot (3 meter) coaxial cable with TNC Connectors. 9 1/2" long x 11" high. Unique forward coverage pattern increases signal gain up to 5 db. Covers all frequencies and increases range.
FCC INFORM ATION The TELEX Receiver UR-700 is authorized under Part 15 of the Federal Communication Commission. Licensing of TELEX equipment is the user’s responsibility and licensability depends upon the user’s classification, and frequency selected.
CUSTOMER SERVICE INFORM ATION If your receiver or transmitter should need servicing under the warranty, please contact: Customer Service Department TELEX COMMUNIC ATIONS, INC. 8601 East Cornhusker Highway, P.O. Box 5579, Lincoln, Nebraska 68505-5579 U.
PN 801347 APRIL 1998 TELEX COMMUNICATIONS, INC. 8601 East Cor nhusker Highway w P.O. Box 5579 w Lincoln, Nebraska 68505-5579.
Un point important après l'achat de l'appareil (ou même avant l'achat) est de lire le manuel d'utilisation. Nous devons le faire pour quelques raisons simples:
Si vous n'avez pas encore acheté Telex ur-700 c'est un bon moment pour vous familiariser avec les données de base sur le produit. Consulter d'abord les pages initiales du manuel d'utilisation, que vous trouverez ci-dessus. Vous devriez y trouver les données techniques les plus importants du Telex ur-700 - de cette manière, vous pouvez vérifier si l'équipement répond à vos besoins. Explorant les pages suivantes du manuel d'utilisation Telex ur-700, vous apprendrez toutes les caractéristiques du produit et des informations sur son fonctionnement. Les informations sur le Telex ur-700 va certainement vous aider à prendre une décision concernant l'achat.
Dans une situation où vous avez déjà le Telex ur-700, mais vous avez pas encore lu le manuel d'utilisation, vous devez le faire pour les raisons décrites ci-dessus,. Vous saurez alors si vous avez correctement utilisé les fonctions disponibles, et si vous avez commis des erreurs qui peuvent réduire la durée de vie du Telex ur-700.
Cependant, l'un des rôles les plus importants pour l'utilisateur joués par les manuels d'utilisateur est d'aider à résoudre les problèmes concernant le Telex ur-700. Presque toujours, vous y trouverez Troubleshooting, soit les pannes et les défaillances les plus fréquentes de l'apparei Telex ur-700 ainsi que les instructions sur la façon de les résoudre. Même si vous ne parvenez pas à résoudre le problème, le manuel d‘utilisation va vous montrer le chemin d'une nouvelle procédure – le contact avec le centre de service à la clientèle ou le service le plus proche.
