UH200D FREQUENCY-AGILE PLUG-ON UHF TRANSMITTER OPERATING INSTRUCTIONS and trouble-shooting guide LECTROSONICS, INC. Rio Rancho, NM www.lectrosonics.
INTRODUCTION Thank you for selecting the Lectrosonics UH200D frequency agile, plug-on transmitter. The UH200D combines over 80 years of engineering experience with the very latest components, in a design that addresses the most demanding professional applications. The design of the UH200D was the direct result of numerous conversations with users, staging and touring companies and dealers across the US.
Frequency Agile Plug-on UHF Transmitter GENERAL TECHNICAL DESCRIPTION The UH200D transmitters are comprised of a number of func tional subsystems as shown in the block diagram below. GENERAL The 200 system uses 75kHz wide deviation for an extremely high signal to noise ratio. The transmitter circuits are all regulated to allow full output power from the beginning (9 Volts) to the end (6.5 Volts) of battery life. The input amplifier uses an ultra low noise op amp.
CONTROLS AND FUNCTIONS LIMIT LED LEVEL LED INPUT JACK POWER ON/OFF LED FREQUENCY 1.6MHz 100kHz POWER SWITCH NO PHTM INPUT JACK MIC LEVEL Top View PHTM LEVEL 5V 48 PWR OFF Control Panel The UH200D may be used with a wide variety of microphones. The 3-pin XLR connector on the UH200D allows the transmitter to be used with any dynamic microphone, as well as many two wire positive bias lavaliere systems (such as those systems supplied by Lectrosonics). POWER SWITCH Turns the battery power on and off.
Frequency Agile Plug-on UHF Transmitter INPUT JACK Standard 3-pin Switchcraft XLR type. Pin 2 is signal, pin 3 is a floating signal ground, and pin 1 is case ground (see schematic below). The UH200D is self-locking onto a standard microphone. If severe noise is experienced when the microphone is moved with respect to the UH200D, the cause is an unbalanced condition between pins 2 and 3 of the microphone. To Mic Preamp 1uh 1uh +5V / +15V / +42V 4.
OPERATING INSTRUCTIONS TO ATTACH Hold the transmitter case and rotate the collar in the direction shown. Do this over a soft surface as the microphone may pop off suddenly Press firmly, listen for click. Depress collar fully. Click! TO REMOVE Pull on mic to insure locking. Attaching the Microphone 1. Insert the UH200D into the selected microphone. Listen for the “click” that indicates the UH200D has locked on to the microphone. Pull on the mic to insure proper locking has occurred. 2.
Frequency Agile Plug-on UHF Transmitter BATTERY REPLACEMENT The UH200D transmitter is powered by a standard alkaline 9 Volt battery. It is important that you use ONLY ALKALINE OR LITHIUM batteries for longest life. Standard zinc-carbon batter ies marked “heavy duty” or “long-lasting” are not adequate. They will provide only about 5 minutes of operation. Similarly, ni-cad rechargeable batteries only give 1 hour of operation, and will also run down quite abruptly. Alkaline batteries provide about 4.
SYMPTOM POSSIBLE CAUSE RECEIVER RF LAMP OFF 1. Transmitter not turned on. 2. Transmitter battery is dead. 3. Receiver antenna missing or improperly positioned. 4. Transmitter and receiver not on same frequency. Check switches/ display on transmitter and receiver. 5. Operating range is too great. NO SOUND (OR LOW SOUND LEVEL), RECEIVER MOD LEVEL LEDs ARE ON 1. Receiver output level set too low. 2. Receiver output is disconnected; cable is defective or mis-wired. 3. Sound system input is turned down.
Frequency Agile Plug-on UHF Transmitter SPECIFICATIONS AND FEATURES Operating frequencies: 537.600 to 607.900 MHz 614.100 to 767.900 MHz Frequency selection: 256 frequencies in 100kHz steps RF Power output: 100 mW (nominal) Pilot tone: 32.764 kHz (± 2Hz); 5kHz deviation Frequency stability: ± 0.
SERVICE AND REPAIR If your system malfunctions, you should attempt to correct or isolate the trouble before concluding that the equipment needs repair. Make sure you have followed the setup procedure and operating instructions. Check out the interconnecting cords and then go through the TROUBLE SHOOTING section in the manual We strongly recommend that you do not try to repair the equipment yourself and do not have the local repair shop attempt anything other than the simplest repair.
Frequency Agile Plug-on UHF Transmitter NOTES: Rio Rancho, NM – USA 11
LIMITED ONE ONE YEAR WARRANTY LIMITED YEAR WARRANTY The equipment is warranted for one year from date of purchase against defects in materials or workmanship provided it was purchased from an authorized dealer. This warranty does not cover equipment which has been abused or damaged by careless handling or shipping. This warranty does not apply to used or demonstrator equipment. Should any defect develop, Lectrosonics, Inc.
