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Фрагмент инструкции
• To Return Audio Gain to the Factory Setting:Rotate the transmitter audio gain control counterclockwise as far as it will go (AXSGW systems), clockwise as far as it will go (AXSHW systems), or to mid position (AXS31, AXS58 and AXSLWD Systems). RECEIVER VOLUME ADJUSTMENT The volume control on the front panel of the AXR3 and AXR4N receivers can be adjusted to make the wireless system output level identical to that of a cabled guitar or bass or wired microphone. After making any necessary transmitter gain adjustments, adjust the receiver volume control until the output reaches the desired level. Rotate the volume control clockwise to increaseoutput. Rotate it counterclockwise to decreaseoutput. RECEIVER SQUELCH ADJUSTMENT The squelch control on the AXR3 and AXR4N receivers is factory preset for optimum performance. No further adjustment is normally required. It is possible to adjust the squelch control setting to emphasize either signal quality or system range: • Turning the squelch control clockwise causes the receiver to demand a higher quality signal (less noise before muting), butdecreases operating range. • Turningthe squelch control counterclockwise allows a lower quality signal through (more noise before muting), butincreases operating range. To return the receiver squelch control to the factory setting, rotate it to the mid-range position (so the slot is vertical). ABOUT THE SHURE NOISE SQUELCH SYSTEM Conventional squelch circuits analyze RF signal strength. Consequently, they cannot discriminate between noise and desired signals. When a wireless system is used in a noisy RF environment, conventional circuits may “open” unexpectedly, sending loud bursts of noise through the receiver when the transmitter’s signal is weak or turned off. Unlike conventional wireless systems, Shure T-Series systems use a noise squelch circuit that analyzes signal qualityinstead of signal strength. A special detector monitors the level of high frequency noise. When the transmitter signal is strong, the system’s noise level is low and the receiver sends audio through. When the transmitter signal is weak or absent, the system’s noise level is high and the squelch circuit will mute the receiver. This virtually eliminates the possibility of annoying bursts of noise coming through your receiver. TIPS FOR ACHIEVING MAXIMUM PERFORMANCE • Makesure you can always see a receiver antenna from the transmitter position. • Keep the distance between the transmitter and the receiver antennas short. • Avoid placing the receiver antennas near metal surfaces and obstructions. They will reduce system performance. • To mount the receiver on a flat surface, attach the four adhesive rubber feet or secure the receiver to the surface with the supplied cloth fastening strips. 5 English TROUBLESHOOTING PROBLEM INDICATOR STATUS TRANS- MITTERAXR3 RECEIVER AXR4N RECEIVER = on = flickers on loud peaks SOLUTIONS POWER ANTENNA AUDIO PEAKPOWER RF PEAKA BON POWER LOW BATT TRANSMITTER •Slide transmitter POWER switch to ON. •Make sure battery is inserted properly (+/– battery terminals must match transmitter terminals). •Insert fresh battery. POWER ANTENNA AUDIO PEAKPOWER RF PEAKA BON POWER LOW BATT TRANSMITTER •Make sure AC adapter is securely plugged into electrical outlet and into DC input connector on rear panel of receiver. •Make sure AC electrical outlet works and supplies proper voltage. No sound. POWER ANTENNA AUDIO PEAKPOWER RF PEAKA BON POWER LOW BATT TRANSMITTER •Slide transmitter MUTE switch to ON. POWER ANTENNA AUDIO PEAKPOWER RF PEAKA BON POWER LOW BATT TRANSMITTER •Extend antenna(s). AXR4N receiver antennas should point away from each other at a 45° angle from vertical; AXR3 receiver antenna should remain vertical. See Figure 8. •Move receiver away from nearby metal objects. •Remove obstructions and maintain line of sight between transmitter and receiver. •Move transmitter closer to receiver. No sound or faint POWER ANTENNA AUDIO PEAKPOWER RF PEAKA BON POWER LOW BATT TRANSMITTER •Increase transmitter gain until Transmitter Audio Peak light flashes on loud peaks. •Turn up receiver volume control as necessary. No sound or faint sound. POWER ANTENNA AUDIO PEAKPOWER RF PEAKA BON POWER LOW BATT TRANSMITTER •Turn up receiver volume control. •Check cable connection between receiver and amplifier or mixer. Sound level from the receiver is different from that of a cabled guitar or microphone. •Adjust transmitter gain as necessary. •Adjust receiver volume as necessary. Sound level is different when you change guitars. •Adjust transmitter gain to compensate for differences between guitar output levels. Distortion increases gradually. POWER LOW BATT •Replace transmitter battery. Bursts of noise, distortion, or other radio signals interrupt performance. ANTENNA RF A B POWER LOW BATT •If noise occurs when transmitter is turned off, remove or turn off nearby sources of RF (such as other wireless systems, CB radios, etc.). •Use a wireless system that operates ...
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