User manual ELECTRO-VOICE 625HS DATASHEET

[. . . ] 6 POTENTIAL SOURCES OF INTERFERENCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 BATTERY RECOMMENDATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 FCC REGULATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] Slide open the battery compartment cover by pressing lightly with your thumb on the horizontal grooves (at the back end of the transmitter) while gently pulling back (see Figure 2). Turn on the transmitter by sliding the power switch (nearest the battery compartment) forward, toward the mic element. Both red and green LEDs above the power switch should be illuminated, indicating power on and good battery condition. Observe that the audio carrier light on the front panel of the receiver is illuminated, an indication that the receiver is picking up the signal. Then, walk the intended area of use and make sure that there are no barriers to reception or sources of interference. Unmute the audio by sliding the audio switch (immediately below the mic element) towards the windscreen. First, speak or sing into the microphone and listen closely for distortion or hiss. If the gain is too low (hiss) page 4 Figure 2 or high (distortion), adjustments are necessary. Gently insert the provided screwdriver (or other 3/32-in. flat head screwdriver) into the hole near the head of the transmitter (see Figure 4). Turn lightly until the screwdriver tip drops into the slot in the level control. When inserting the battery, pay attention to the polarity (+/-) and insert the terminals first into the battery compartment. Close the battery door by sliding the door shut. Turn on the transmitter by sliding the power switch to its on position. Check the condition of the battery by looking at the LED below the power switch. The battery light should flash once and then go out. If the LED stays on, the battery is weak and should be replaced. Prepare the audio source by attaching the lavalier microphone to the user, placing the headset on the users head or plugging the cable into the instrument (depending on what type of system you have). Keep the audio muted while plugging in and adjusting the microphone or source. Check reception by observing that the RF carrier light is illuminated on the receivers front panel. Figure 5 Figure 6 page 5 625HS OWNERS MANUAL COMPATIBILITY The receiver and transmitter must be tuned to the same VHF frequency to operate together. Because of the specialized equipment required to adjust these units properly, users cannot change frequencies. If two or more 625HS and/or other VHF/UHF wireless systems are being used in the same location, proper frequency coordination is required to avoid interference. [. . . ] If such malfunction occurs during the specified period, the product will be repaired or replaced (at our option) without charge. The product will be returned to the customer prepaid. Exclusions and Limitations: The Limited Warranty does not apply to: (a) exterior finish or appearance; (b) certain specific described in the individual product-line statement(s) below, or in the individual product data sheet or owners manual; (c) malfunction resulting from use or operation of the product other than as specified in the product data sheet or owners manual; (d) malfunction resulting from misuse or abuse of the product; or (e) malfunction occurring at any time after repairs have been made to the product by anyone other than Electro-Voice or any of its authorized service representatives. Obtaining Warranty Service: To obtain warranty service, the customer must page 8 625HS OWNERS MANUAL IN CASE OF DIFFICULTY Problem No audio Possible Causes Transmitter audio switch is off. [. . . ]