R1 UHF MULTI-FREQUENCY BELT-PACK IFB RECEIVER OPERATING INSTRUCTIONS and trouble-shooting guide LECTROSONICS, INC.
SAFETY NOTES Excessive sound levels can cause permanent hearing damage. 1. Always adjust the volume to the lowest level before listening to un known transmissions. 2. Use the lowest reasonable level consistent with hearing safety. 3. Don’t use high sound levels in the earphone to overcome high ambient sound levels. That is absolutely foolish! Demand and use high isolation earphones. 4. Don’t expose your ears to sound levels that cause them to ring.
IFB Receiver INTRODUCTION Thank you for selecting the Lectrosonics frequency agile, R1 IFB Receiver. The R1 is the result of extensive engineering experience with the very latest components. The design addresses the most demanding professional applications. The Lectrosonics R1 Receiver along with the companion T1 transmitter allow on-air talent to monitor program audio, and to receive cues from directors and other production person nel.
GENERAL TECHNICAL DESCRIPTION The IFB R1 Receiver is comprised of a number of functional subsystems as shown in Fig 1, Control Panel and Fig 2, Receiver Block Diagram. GENERAL FEATURES The frequency agile IFB R1 FM Receiver is designed to operate with the Lectrosonics IFB T1 Transmitter and features microprocessor control of 256 frequencies of operation within each frequency block. Each block covers 25.5 MHz with 0.1 MHz frequency spacing.
IFB Receiver HEADPHONE JACK (fig. 1) On the front panel is a 3.5mm mini phone jack to accommodate a standard mono or stereo type 3.5 mm plug. The unit will drive low or high impedance earphones. The jack is also the receiver antenna input with the earphone cord acting as the antenna. The cord length is not critical but must be at least 6 inches minimum. OUTPUT DRIVE LEVEL ADJUST (fig. 2) On one side of the receiver unit is a sliding door covering an Output Max Level screwdriver adjust potentiometer.
RECEIVER OPERATING INSTRUCTIONS Before operating a receiver, one or more IFB T1 transmitters must be placed in XMIT mode, with each transmitter set to the desired frequency and connected to a proper antenna, audio source, and power source. The transmitter frequency block must be the same as the receiver frequency block as marked on each unit. RECEIVER NORMAL OPERATION (already programmed) 1. Plug an earphone or headset into the 3.5mm jack and set for MONO PLUG or STEREO PLUG.
IFB Receiver ERASE ALL 5 CHANNEL MEMORIES 1. With power OFF, depress the knob and turn the unit ON. Continue to hold the knob down until the LED starts rapidly blinking. The memory is now erased and the unit will go into scan/search mode. 2. Continue from step 3 above PROGRAMMING - ADD NEW FREQUENCY…. MULTIPLE TRANSMITTER SETUP When using this IFB receiver in a search mode, with two or more transmitters running at the same time, the receiver may stop on a false signal under the following conditions: 1.
TROUBLESHOOTING SYMPTOM POSSIBLE CAUSE LED NOT LIT • Battery not installed or depleted • Power switch not on. NO SOUND IN HEADPHONE • AUDIO LEVEL turned all the way down. • Headphone plug not inserted fully. • Defective headphone • Transmitter not operating. (See separate transmitter manual.) • Mono Plug /Stereo Plug switch set to wrong position • Receiver not on the same frequency as the transmitter. Refer to “Programming - Add a New Frequency” on page 7.
IFB Receiver SPECIFICATIONS AND FEATURES Operating frequencies: 537.6 MHz to 608, 614 to 793.
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 intercon necting 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.
IFB Receiver NOTES Rio Rancho, NM – USA 11
LIMITEDONE ONE YEAR LIMITED YEARWARRANTY 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.
