Shure orporated U2B Low Power Wireless Microphone User Manual uhf sys en prn

Shure Incorporated Low Power Wireless Microphone uhf sys en prn

Users Manual

27A8571 (RA) Printed in U.S.A.Copyright 1998, Shure Brothers IncorporatedThe Sound of Professionals...WorldwideShure Brothers Incorporated222 Hartrey Avenue, Evanston, Illinois 60202–3696 Phone: 847/866–2200 Fax: 847/866-2279In Europe, Phone: 49-7131-72140 Fax: 49-7131-721414 Internationally, Phone: 847/866–2200 Fax: 847/866-2585UHFUser’s Guide
ENGLISH ENGLISH TABLE OF CONTENTSSYSTEM DESCRIPTION 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SYSTEM FEATURES 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SYSTEM COMPONENTS 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . U1 BODY-PACK TRANSMITTER CONTROLS & INDICATORS 6. . . . . . . . . . . . . . . . . . . . . . . U2 MICROPHONE-TRANSMITTER CONTROLS & INDICATORS 7. . . . . . . . . . . . . . . . . . . . . . U4S & U4D RECEIVER CONTROLS & CONNECTORS 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . RECEIVER SETUP 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Installing Rear Mounted Receiver Antennas 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Installing Front Mounted Receiver Antennas 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Basic Receiver Connections 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . VIEWING CURRENT RECEIVER SETTINGS 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PROGRAMMING THE RECEIVER 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Changing Receiver Group/Channel Settings 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Changing Receiver Frequency Setting 15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Changing Receiver Name 16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Changing Receiver Squelch Level Setting 17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Locking the Receiver Display 20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Unlocking the Receiver Display 20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TRANSMITTER SETUP 21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Transmitter Battery Installation 21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Checking Transmitter Batteries 22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Connecting a Lavalier Microphone or Instrument Cable to the U1 Transmitter 23. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PROGRAMMING THE TRANSMITTER 23. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Changing Transmitter Group/Channel Settings 23. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Locking the Power Switch in the ON Position 26. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Cancelling the Power On Lock Function 26. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Activating the Frequency Lock Function 27. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Cancelling the Frequency Lock Function 28. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . OPERATING THE U1 BODY–PACK SYSTEM 28. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . OPERATING THE U2 HAND-HELD SYSTEM 29. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ADJUSTING TRANSMITTER AUDIO GAIN LEVEL 30. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ADJUSTING TRANSMITTER AUDIO INPUT LEVEL 31. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TIPS FOR ACHIEVING OPTIMUM PERFORMANCE 32. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TROUBLESHOOTING 32. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SPECIFICATIONS 33. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . LICENSING INFORMATION 33. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . APPENDIX: NETWORK INTERFACE PIN MAP 34. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
ENGLISH ENGLISHSYSTEM DESCRIPTIONThe Shure UHF Wireless microphone system is a frequency-agile diversity sys-tem operating in the UHF band. Both the receiver and the transmitter are synthesizercontrolled via Phase Locked Loop (PLL) circuitry for clear, steady radio frequency(RF) signal. The receiver is available in either dual or single models that fit into a stan-dard 19 inch (482 mm) equipment rack. An auxiliary unswitched AC output jack al-lows multiple receivers to be linked “daisy chain” style. The optional UA830 RemoteAntenna Kits can be powered by 12 Vdc, 500 mA output provided through the anten-na connectors. The optional UA840 Antenna Distribution Amplifier Kits allows con-nection of multiple receivers using only two antennas.SYSTEM FEATURESShure UHF Wireless Systems offer many exceptional features, including:•Frequency Agility. The operating frequency of transmitters and receivers can beeasily switched to any setting in the UHF range. Settings are available in pre-pro-grammed incremental steps that allow for necessary channel separation.•Menu Driven Display. User–programmable receiver display shows Group,Channel, Frequency, Name, Squelch level, and Locked/Unlocked status.•Exclusive Shure MARCADCircuitry. MARCAD (MAximum Ratio CombiningAudio Diversity) circuitry constantly monitors signals from both receiver sectionsand combines them in a single output signal. MARCAD provides superior recep-tion and exceptional freedom from dropouts.•Noise Squelch Circuitry. Analyzes signal quality instead of signal strength. Thisvirtually eliminates the possibility of annoying noise bursts coming through yourreceiver.•Dual RF Level Meters. The U4S and U4D receivers have two RF meters, one foreach antenna. The dual meters indicate received signal strength at each antenna,and make it easier to identify and troubleshoot “dead spots.”•Audio Metering. Each receiver includes a seven–segment audio meter that letsyou monitor audio level and helps optimize transmitter gain setting.•Transmitter Display. Shows Group, Channel, Battery Power Level, and POWERLOCK ON/OFF* condition. Both displays are user programmable.•Transmitter Battery Power Meters: Meters on the transmitter and the RECEIV-ER MONITOR TRANSMITTER BATTERY POWER LEVEL from the receiver aswell as from the transmitter.•Tone Key Squelch: Eliminates unwanted noise from entering system; eliminatespopping noises when turning the transmitter on or off.•Dual Receiver Option: Provides greater flexibility while conserving rack space.•Preconfigured Group/Channel: Ensures frequency compatibility and simplifiessystem installation.•Network Expansion Capability. U4S and U4D receivers have a 25–pin serial con-nector for future computer control and monitoring via an accessory interface box.•DC/DC Converter: Ensures consistent audio and RF performance, even if bat-tery voltages change.* U.S. Patent No. 5,692,057.FIGURE 1U1 U2U4SU4DSYSTEM COMPONENTS (FIGURE 1)Each Shure UHF Wireless System includes the following components:U1 Body-Pack Transmitter with your choice of instrument cable or micro-phone,orU2 Hand-Held Microphone-Transmitter with your choice of interchangeable microphone heads:•SM58 cardioid dynamic microphone•BETA 58At supercardioid premium dynamic microphone•SM87 supercardioid condenser microphone•BETA 87 supercardioid premium condenser microphone;and aU4S Single Channel Diversity Receiver with rack-mounting hardware andantennas,or a45
ENGLISH ENGLISH12 131110ONFIGURE 25416972OFF138U4D Dual Channel Diversity Receiver with rack-mounting hardware and an-tennas.U1 TRANSMITTER CONTROLS & INDICATORS (FIGURE 2)1. Antenna: A flexible 1/4 wave whip antenna is permanently attached to the top ofthe U1 body-pack transmitter. The antenna can be replaced in the field by a quali-fied technician.2. Programmable Display: Displays group and channel, battery power level, andfrequency lock/power lock on/off status.3. Input Connector: Provides connection with a variety of lavalier and headset mi-crophone cables, and the Shure WA302 instrument adapter cable. LEMO–typeconnectors are available as an option.4. ON/OFF Switch: Turns transmitter power on and off.5. On/Off LED: Glows green when the U1 is turned on.6. Belt Clip: Allows the transmitter to be easily worn on a belt, waistband or guitarstrap.7. MODE Button: Selects the parameter (Group or Channel) you wish to change.8. SET Button: Changes transmitter Group and Channel settings. Also used withthe MODE button to lock power on and to lock the frequency and channel setting.9. Audio Gain Control: Allows audio level adjustment to accommodate a variety ofsound sources (speaking, singing, or playing an instrument). A small screwdriveris supplied for making adjustments.10. Battery Cover Release Tabs: Squeeze these two tabs together to release thebattery cover.11. Battery Compartment Cover: Hinged cover on front surface opens to exposethe battery and display control keys.12. Battery Fuel Gauge: Visually indicates battery power level.13. Battery Compartment: Contains two 1.5V AA batteries (Duracell MN1500 rec-ommended).67
ENGLISH ENGLISH10ONOFFFIGURE 351854GAIN29637U2 TRANSMITTER CONTROLS & INDICATORS (FIGURE 3)1. Grille. Protects the microphone cartridge and helps reduce breath sounds and windnoise. The grilles for the various microphone heads differ in appearance.2. Programmable Display: Displays Group and Channel, battery power level, andfrequency lock/power lock on/off status.3. Battery Fuel Gage: Visually indicates battery power level.4. Battery Cover: Unscrews to expose batteries and display control keys.5. ON/OFF Switch: Turns transmitter power on and off.6. Antenna: Helical antenna is attached to the end of the U2 transmitter. The anten-na can be replaced in the field by a qualified technician.7. Battery Compartment: Contains two 1.5 V AA batteries (Duracell MN1500 rec-ommended).8. MODE Button: Selects the parameter (Group or Channel) you wish to change.9. SET Button: Changes transmitter Group and Channel settings. Also used withthe MODE button to lock power on and to lock the frequency and channel setting.10. Audio Gain Control: Allows audio level adjustment to accommodate a variety ofsound sources (speaking, singing, or playing an instrument). A small screwdriveris supplied for making adjustments.
ENGLISH ENGLISH15147123 568910 11 12FIGURE 441813 16 17 1519U4S Receiver51514 1813 16 17 17 181619 157123 568910 11 1247123 6 84U4D ReceiverU4S & U4D RECEIVER CONTROLS & CONNECTORS (FIGURE 4)1. MENU Button. Press this button to access the main display menu.2. SELECT Button. Press this button to choose or execute a displayed value orfunction.3. RF Level Indicators: Five LEDs per RF antenna channel glow to indicate RF sig-nal strength. The more LEDs that glow, the stronger the received signal. If noneof these LEDs glow, no signal is being received4. Audio Level Indicators: These seven LEDs glow to indicate audio signalstrength. Green indicates normal operation. Amber indicates approaching over-load condition. Red indicates excessively high audio levels. (Clipping occurswithin 4–6 dB when the red LEDs glow).5. Programmable Display. Displays group and channel number, frequency, squelchlevel, system name, transmitter battery power level, and display lock on/off status.6. + Button: Press this button to scroll display forward.7. – Button: Press this button to scroll display backward.8. Audio Output Control: Adjusts receiver output level to match input level require-ments of a mixer or amplifier. Normally, this control is set fully clockwise.9. Headphone Monitor Volume Control: Rotate this knob to the right to increaseheadphone volume; rotate it to the left to decrease headphone volume.NOTE: If you are using a Model U4S Receiver, press the Headphone VolumeControl knob to turn the monitor on or off.If you are using a Model U4D Receiver, press the Headphone Volume Controlknob once to select Receiver 1 or twice to select Receiver 2, depending on whichsection you wish to monitor.10. Headphone Monitor Status: These LEDs glow yellow when the headphonemonitor circuit is turned on or off.NOTE: The Tone Key feature is present only on the receiver output. As a result,you may hear an occasional “pop” through the headphones when the transmitteris turned on or off.11. Headphone Input Connector: Plug headphones into this 1/4–inch connector tomonitor receiver audio.12. POWER On/Off Switch: Turns the receiver on and off.13. Power Input Connector: Accepts power directly from any 90 to 230 VAC, 50/60Hz power source.14. Power Output Connector: Provides 90 to 230 VAC, 50/60 Hz power to additionalequipment. It can be used to link multiple receivers or to power the Shure UA840Antenna Distribution System.15. Antenna Input Connectors: BNC-type connectors provide connection to thesupplied antennas or to coaxial cable used with a distribution amplifier or remoteantennas.CAUTION: To avoid damage to equipment, make sure any equipment connectedto the antenna inputs can tolerate 12 VDC power.16. HIGH Z (Unbalanced) Output Connector: 1/4 inch phone jack provides unbal-anced auxiliary level (high-impedance) output.17. Mic/Line Slide Switch: Controls output of balanced XLR connector. It can be setfor microphone or line-level (microphone level = line level – 30 dB)).18. LOW Z (Balanced) Output Connector: XLR connector provides balanced low-impedance mic level or line-level output.19. Networking Interface: 25–pin “D” connector provides future electronic interfaceto computers and other equipment via accessory interface box.89
ENGLISH ENGLISHRECEIVER SETUPInstalling Rear Mounted Receiver AntennasAttach the supplied UHF antennas to the antenna BNC connectors on the receiverback panel, as shown in Figure 5. For best performance, orient the antennas with tipspointing away from each other at a 45° angle from vertical.FIGURE 5Installing Front Mounted Receiver Antennas1. Insert the two bulkhead adapters through the larger holes on each side of the frontpanel, and secure them from each side, using the supplied attaching hardware.See Figure 6.RECEIVER(TOP VIEW)FIGURE 6BULKHEADADAPTERBULKHEADADAPTER2. Connect the supplied antenna cables to the receiver and the bulkhead adapters,as shown in Figure 7. RECEIVER(TOP VIEW)FIGURE 7ANTENNACABLEANTENNACABLENOTE: Shure recommends connecting the bulkhead adapter and antenna cablesbefore mounting the receiver in a rack. Once the receiver is in the rack, it is more diffi-cult to insert the bulkhead adapters and connect the antenna cables.3. Insert the receiver into the equipment rack and secure it with the supplied screws.See Figure 8.EQUIPMENT RACKFIGURE 84. Attach the supplied UHF antennas to the BNC connectors on the front panel, asshown in Figure 9. For best performance, orient the antennas with tips pointing awayfrom each other at a 45° angle from vertical.FIGURE 910 11
ENGLISH ENGLISHBasic Receiver Connections (Figure 10)1. Connect the receiver output to the mixer or amplifier input, using a standard audiocable with a female 3-pin XLR connector or 1/4-inch phone plug.2. If desired, plug a set of headphones into the headphone monitor output connec-tor.AC POWERFIGURE 10AUDIO MIXERAMPLIFIER LOUDSPEAKERLOUDSPEAKERHEADPHONES3. Connect the female end of a modular power cord to the male power input connec-tor on the rear panel of the receiver. Then plug the power cord into a suitable ACpower source.NOTE: If the receiver is rack-mounted, or if front–mounted antennas are used,the antennas should extend above the rack cabinet or be remotely located. Im-proved diversity performance may be obtained by installing one or both antennasat a remote location and separating them by 1.5 meters (60 inches) or more. An-tennas at remote locations should be connected to the receiver via UA825 orUA850 Extension Cable Kit(s) or other suitable low-loss cable (RG8 or equiva-lent) and used in conjunction with a UA830 Active Remote Antenna Kit.VIEWING CURRENT RECEIVER SETTINGSTo view current settings on the receiver display, proceed as follows:1. Turn the receiver on by pressing upper half of the POWER switch.2. Press either the “+” button or the “–” button on the receiver front panel to scrollthrough the current settings.PROGRAMMING THE RECEIVERYou can change the receiver Group/Channel setting, the operating frequency,squelch level, and receiver name through the programmable display. The displaycan then be locked to prevent accidental changes. Instructions for programmingeach display function are presented in the following paragraphs.Changing Receiver Group/Channel SettingsThe receiver display identifies frequencies by Group and Channel. This allowsconvenient setup of compatible systems. A complete list of compatible frequencyGroups and Channels is included in the separate UHF Frequency CompatibilityGuide. To change the receiver Group and Channel settings, proceed as follows:1. Turn the receiver on by pressing upper half of the POWER switch.2. Press the MENU button. The “+ MENU –” display will appear, as shown in Figure11.FIGURE 113. Press either the + or – button to reach the SET G/CH display, shown in Figure 12.FIGURE 1212 13
ENGLISH ENGLISH4. Press the “SELECT” button to choose Group or Channel. The current Group,Channel, and TV channel setting will appear, as shown in Figure 13. (Models soldoutside the U.S. and Canada may not display TV channel.)GROUP CHANNEL TVFIGURE 135. Press the SELECT button until a line is below the character you want to change,as shown in Figure 14.GROUP CHANNEL TVFIGURE 146. Press either the “+” or “–” button to change the Group or Channel setting. The TVChannel setting will change automatically. (Models sold outside the U.S. andCanada may not display TV channel).7. When the new Group/Channel has been completely entered, press the MENUbutton. “SAVE?” will appear on the display, followed by “+ YES – NO”. Press the“+” button to save the new Group/Channel setting or press the “–” button to returnto the original setting. See Figure 15.FIGURE 15NOTE: If more than 20 seconds of inactivity elapse, the display will return to theoriginal settings.Changing Receiver Frequency Setting1. Press the MENU button. The + MENU – display will appear, as shown in Figure 16.FIGURE 162. Press either the + or – button to reach the SET FREQ display, shown in Figure 17.FIGURE 173. Press the SELECT button. The current operating frequency will be displayed, asshown in Figure 18.FIGURE 184. Press the “+” or ”–” button to increase or decrease the setting in incremental stepsuntil the desired frequency is reached. See Figure 19.FIGURE 19NOTE: The receiver operating frequency actually changes the moment you pressthe + and – buttons. As the frequency changes, the G/CH number automaticallychanges. By observing the RF lights on the receiver, you can see which frequen-cies are already being used and avoid interference. If more than 20 seconds ofinactivity elapse, the display will return to the original settings.14 15
ENGLISH ENGLISH5. Press the MENU button to enter the desired frequency, as shown in Figure 15.SAVE? will appear on the display, followed by “+ YES – NO”. Press the “+” buttonto save the new frequency, or press the “–” button to return to the original setting.See Figure 20.FIGURE 20Changing Receiver NameTo identify a particular transmitter with a receiver channel, set the name of the receiveras follows: 1. Press the MENU button. The + MENU – display will appear, as shown in Figure 21.FIGURE 212. Press either the + or – button to reach the SET NAME display, shown in Figure 22.FIGURE 223. Press the SELECT button. An underline will appear under the first character of thename. The factory pre–set Name display (SHURE) is shown in Figure 23. FIGURE 234. Press either the + or – button to scroll through the character options (A–Z, 1–9,etc.) until a desired character is reached.5. Press the SELECT button to enter the character and move to the next space. Youmay enter a name up to eight characters long, including blank spaces. Continueuntil you have spelled out the entire name.6. When the new name has been completely entered, press the MENU button.“SAVE?” will appear, followed by “+ YES – NO”. Press the “+” button to save thenew name and return to the Group/Channel/TV display. Press the “–” button tomake more changes. See Figure 24.FIGURE 24NOTE: If more than 20 seconds of inactivity elapse, the display will return to theoriginal settings.Changing Receiver Squelch Level SettingHigher squelch settings will demand a quieter signal before muting the receiver,but reduce operating range. Lower squelch settings will extend the operating range,but increase noise levels before dropout occurs. To change the receiver Squelch set-ting, proceed as follows:1. Press the MENU button. The + MENU – display will appear, as shown in Figure 25.FIGURE 252. Press either the + or – button to reach the SET SQCH display, shown in Figure 26.FIGURE 263. Press the SELECT button to display the current squelch level, as shown in Figure27 (factory preset value is “0.0”).FIGURE 27MID4. Press either the “+” or “–” button to change the Squelch setting in increments of0.5 until the desired level is reached. The Squelch setting actually changes themoment you press the “+” and “–” buttons.16 17
ENGLISH ENGLISHNOTE: The highest possible squelch setting is +10.0 and the lowest possiblesquelch setting is –10.0, as shown in the following table . However, the factorypreset level of 0.0 usually will not need to be changed.*Receiver Squelch Control SettingsDISPLAY dBm*Maximum 10 –83.09.5 –86.09.0 –87.08.5 –87.58.0 –88.07.5 –88.57.0 –89.06.5 –89.56.0 –90.05.5 –90.55.0 –91.04.5 –91.54.0 –92.03.5 –92.33.0 –92.72.5 –93.02.0 –93.31.5 –93.61.0 –93.90.5 –94.2Midrange 0 –94.5–0.5 –94.8–1.0 –95.1–1.5 –95.4–2.0 –95.7–2.5 –96.0–3.0 –96.3–3.5 –96.6–4.0 –96.9–4.5 –97.2–5.0 –97.5–5.5 –97.8–6.0 –98.1–6.5 –98.4–7.0 –98.7–7.5 –99.0–8.0 –99.3–8.5 –99.6–9.0 –99.9–9.5 –100.2Minimum –10 Open *U4S and U4D squelch values differ slightly. Specifications subject to change without notice. 5. Once you have reached the desired squelch level, press the MENU button.SAVE? will appear, followed by + YES – NO, as shown in Figure 28. Press the– button to make more changes, or press + to save the new squelch setting andreturn to the Group/Channel/TV display.FIGURE 28NOTE: If more than 20 seconds of inactivity elapse, the display will return to theoriginal settings.Locking the Receiver Display1. Press the MENU button. The + MENU – display will appear, as shown in Figure 29.FIGURE 292. Press either the + or – button to reach the SET LOCK display, as shown in Figure30.FIGURE 3018 1919
ENGLISH ENGLISH3. Press the SELECT button. The CODE? display will appear, as shown in Figure 31.FIGURE 314. Press +, –, +, in that order, to engage the display lock. The display shown inFigure 32 will appearFIGURE 32NOTE: Write down the lock code (+, –, +) and keep it in a secure place. If no code isentered, the system will time out and return to the main display.5. A small “lock” symbol will appear in the upper right corner of the status screen dis-plays, as shown in Figure 33. The lock symbol indicates the receiver is in the lockmode.GROUP CHANNEL TVFIGURE 33Unlocking the Receiver Display To disengage the lock, press the MENU button. When “CODE?” appears, press+, –, + , in that order, then press the MENU button.NOTE: Once the lock function is engaged, any attempt to change settings willcause “CODE?” to appear. If the incorrect code is entered, “INVALID” will appear,preventing the user from changing any settings.TRANSMITTER SETUPTransmitter Battery Installation (Figure 34)1. Make sure the transmitter power ON/OFF switch is in the OFF position.2. Open the transmitter battery compartment as follows:•U1 Transmitter: Squeeze the two tabs on either side of the transmitter and flip thebattery cover down.•U2 Transmitter: Unscrew the battery cover and slide it down.FIGURE 341.5V AA1.5V AA1.5V AA1.5V AA3. Remove the old batteries as follows:•U1 Transmitter: Press down on the negative terminal end of each battery.•U2 Transmitter: Lift the batteries out.4. Install two fresh 1.5 V AA alkaline batteries (DURACELL MN1500 recom-mended). Make sure the battery terminals match the terminals in the transmitter.5. Close the battery cover.IMPORTANT: Two fresh 1.5 V AA alkaline batteries should provide 8 to 12hours of operation. However, nickel-cadmium (nicad) batteries may onlyprovide up to 3 hours of operation. Carbon-zinc and zinc-chloride batter-ies will not provide sufficient power, and are not recommended.20 21
ENGLISH ENGLISHChecking Transmitter Batteries (Figure 35)1. Turn the transmitter power ON/OFF switch to the ON position.2. Observe the battery fuel gauge displayed on the transmitter screen and on theright side of the receiver screen. Battery power level is indicated by the numberof black segments displayed. As transmitter batteries are consumed, the dis-played segments will gradually disappear.NOTE: The dc to dc converter functions keeps system voltage constant as batteryvoltage declines, ensuring superior audio and RF performance.FIGURE 35Number of Segments Displayed onTransmitter5 8 – 124 6 – 83 4 – 62 2 – 41 1 or lessNumber of Segments Displayedon ReceiverOperating TimeRemaining(in Hours)*3 4 – 122 2 – 41 2 or less0 0.5 or lessTRANSMITTER BATTERYFUEL GAUGE(ON TRANSMITTER DISPLAY)TRANSMITTER BATTERYFUEL GAUGE(ON RECEIVER DISPLAY)Operating TimeRemaining(in Hours)**Using Duracell MN1500 alkaline batteries.*Using Duracell MN1500 alkaline batteries.NOTE: If the transmitter is left on and the batteries run down, the microprocessor willturn off RF power, the Tone key, and the display.Connecting a Lavalier Microphone or Instrument Cable to the U1Transmitter (Figure 36)1. Plug the microphone cable or instrument cable into the transmitter input connector.2. Attach the lavalier microphone to your tie, shirt or collar. If you are using a headset,put the headset on.3. If an instrument adapter cable is used, attach the other end of cable to the outputconnector on the instrument.MICROPHONE CABLE ORINSTRUMENT ADAPTERCABLEFIGURE 36PROGRAMMING THE TRANSMITTERThe Group/Channel setting on the U1 and U2 transmitter display can be pro-grammed to meet the requirements of a particular installation. You can also lock thedisplay and the power on function to prevent accidental changes. Instructions forprogramming the transmitters are presented in the following paragraphs.Changing Transmitter Group/Channel Settings1. Turn the transmitter on by sliding the transmitter power ON/OFF switch to the ONposition. The existing Group and Channel settings will be automatically dis-played.2. Open the battery compartment. This will expose the MODE (left) and SET (right)buttons, as well as the GAIN control and the batteries, as shown in Figure 37.FIGURE 3722 23
ENGLISH ENGLISH3. Press and hold down the MODE button until only the Group number is displayed,as shown in Figure 38.FIGURE 384. Press the SET button to increment the Group setting, as shown in Figure 39.FIGURE 39NOTE: If the SET button is held for more than 5 seconds, the display will go into thefast increment mode. if more than 20 seconds of inactivity elapse, the display willreturn to the original settings.5. Press the MODE button again so that only the Channel number is displayed, asshown in Figure 40.FIGURE 406. Press the SET button to change the Channel setting, as shown in Figure 41.FIGURE 417. Press the MODE button again so that the new Group and Channel numbers areboth displayed.NOTE: On transmitter, the transmitter operating frequency does not change untilnew settings are saved.24 25
ENGLISH ENGLISHLocking the Power Switch in the ON PositionTo lock the power switch, press and hold the SET button, then press and hold theMODE button. Hold both keys down until “PoL” (for power locked) is displayed, asshown in Figure 42. FIGURE 42NOTE: When the Power On Lock function is activated, “–– ––” will flash on the trans-mitter screen every 5 seconds when the transmitter power ON/OFF switch is in theOFF position.CANCELLING THE POWER ON LOCK FUNCTIONTo cancel the Transmitter Power On Lock unction, press and hold the SET button,then press and hold the MODE button. Keep both keys pressed down until “Po UL”(for power unlocked) is displayed momentarily, as shown in Figure 43.The Transmit-ter Power On Lock function can also be cacelled by removing the batteries.FIGURE 43Activating the Frequency Lock FunctionThe Frequency Lock function prevents accidental frequency changes, and is par-ticularly useful in preventing accidental or unauthorized changes. The lock functionis retained in memory, even if the transmitter is turned off and the batteries removed.To activate the Frequency Lock function, proceed as follows:1. Turn the transmitter power off.2. Turn the power back on while holding down the SET button until the fuel gaugeon the transmitter is active. “Fr L” will appear momentarily, as shown in Figure 44,until you release the SET button.FIGURE 443. To verify that the frequency lock function is turned on, press the MODE or SETbutton. If the lock function is turned on, “– –” will appear on the transmitter screen,as shown in Figure 45.FIGURE 4526 27
ENGLISH ENGLISHNOTE: When the Frequency Lock function is engaged, the Power On Lock func-tion can still be activated. However, if the Power Lock and the Frequency Lockfunctions are engaged, the Power Lock function must be disengaged before theFrequency Lock can be cancelled.Cancelling the Frequency Lock Function (Figure 46)To cancel the Frequency Change Lock function, repeat the steps in the precedingActivating the Frequency Lock Function paragraph. When the frequency lock func-tion is turned off, Fr UL will appear on the transmitter display, as shown in Figure 46.FIGURE 46 OPERATING THE U1 BODY–PACK SYSTEM1. Clip the U1 body pack transmitter to your belt, waistband, or guitar strap. Push thebody pack all the way down.2. Connect the lavalier microphone, headset microphone, or instrument adapter cableto the U1 transmitter.3. If you will be using a lavalier microphone, clip it to your tie, lapel, or other garment.If you are using a headset, put the headset on. If you are using an instrumentadapter cable, plug it into the instrument.4. Slide the transmitter power ON/OFF switch to the ON position. The green poweron LED will glow and the Group and Channel number will appear on the transmit-ter display, along with a bar graph that indicates battery power level.5. Turn the receiver on by pressing the upper section of the POWER switch. The re-ceiver display and RF LEDs will glow.6. Make sure the transmitter and receiver are tuned to the same Group, Channel, andFrequency. If necessary, change the settings on either the transmitter or receiver.7. If using a headphone monitor, push the monitor knob on the receiver (U4S) or halfthe way down (U4D). The headphone monitor light, located below the knob, willglow. Rotate the knob until the headphone volume is at a comfortable level.NOTE: If you are using the U4D receiver, pushing this knob selects the receiversection you wish to monitor.8. Begin speaking or playing your instrument. Rotate the OUTPUT LEVEL knob asnecessary to achieve desired receiver output levels.NOTE: If the red PEAK LEDs on the receiver do not flicker during the loudestsounds, or if they are always on, the transmitter gain may need to be increased ordecreased. Refer to Adjusting the Transmitter Audio Gain Level. If the system stilldoes not operate properly, consult the Troubleshooting table.9. When the performance or presentation is over, slide the transmitter ON/OFFswitch to the OFF position to conserve battery power.OPERATING THE U2 HAND-HELD SYSTEM1. Slide the transmitter power ON/OFF switch to the ON position. The Group andChannel number will appear on the transmitter display, along with a bar graph indi-cating battery power level.2. Turn the receiver on by pressing the upper section of the POWER switch. The re-ceiver display and the RF lights will glow.3. Make sure the transmitter and receiver are tuned to the same Group, Channel,and Frequency. If necessary, change the settings on the transmitter or receiver.4. If using a headphone monitor, push the monitor knob on the receiver to turn themonitor circuit on. The ON LED, located below the knob, will glow. Rotate the knobuntil the headphone volume is at a comfortable level.NOTE: If you are using the U4D receiver, pushing this knob selects the receiversection you wish to monitor.5. Begin speaking or singing into the microphone. Rotate the OUTPUT LEVEL knobas necessary to increase or decrease receiver output levels.NOTE: If the red PEAK LEDs on the receiver do not flicker during the loudestsounds, or if they are always on, the transmitter gain may need to be increased ordecreased. Refer to Adjusting the Transmitter Audio Gain Level. If the system stilldoes not operate properly, consult the Troubleshooting table.6. When the performance or presentation is over, slide the transmitter power ON/OFF switch to the OFF position to conserve battery power.28 29
ENGLISH ENGLISHADJUSTING TRANSMITTER AUDIO GAIN LEVEL (FIGURE 47)The transmitter audio gain level has been factory pre-set to provide satisfactoryoutput in most applications. However, for loud singers or high-output musical instru-ments, the preset level may be too high, as indicated by constant glow of the red au-dio level LED. Soft-spoken talkers or singers may find that the factory setting is toolow, as indicated by the failure of the amber audio level LED to glow at all. To adjust audio gain, open the battery compartment and locate the transmitter au-dio gain control. Use the supplied screwdriver to make adjustments. FIGURE 47INCREASEGAINDECREASEGAININCREASEGAINDECREASEGAINSFor high sound pressure level applications, such as loud singing or playing,decrease audio gain level by rotating the gain control counterclockwise(while the microphone is in use) until the red audio level LEDs on the receiv-er flickers during the loudest sounds.SFor low sound pressure level applications, such as soft singing or playing,increase audio gain level by rotating the gain control clockwise until the redaudio level LEDs on the receiver flickers during the loudest sounds.NOTE: For guitar applications, the minimum setting (full counterclockwise) is rec-ommended.If you are using the Shure WH10TQG headset, rotate the gain control to the fullclockwise position. Then, if necessary, rotate it back slightly.ADJUSTING TRANSMITTER AUDIO INPUT LEVEL (FIGURE 48)NOTE: The factory-preset (–6 dB) should match most applications. Before chang-ing the audio input level, try adjusting the transmitter gain (see Figure 47).The U1 body-pack transmitter has an attenuator switch that allows you to set the au-dio input level for different types of applications. Use one of the following three set-tings according to the type of input source you are using:•0 dB (fully counterclockwise) is for low-output microphones, such as those inheadsets.•–6 dB (center) is the factory-preset position; it should accommodate most vocaland instrumental applications.•–20 dB (fully clockwise) is for extremely high-output instruments, such as electricguitars with active electronics.To change the audio input level, re-position the attenuator switch using the followingsteps :1. Remove the belt clip from the back of the transmitter by carefully prying the wirebracket, one side at a time, from the sides of the transmitter. Removing the clipwill reveal an access hole in the back of the transmitter.AttenuatoraccessClip socketsDecreaseinput levelIncreaseinput level2. Use the supplied 1.6 mm (1/16 in.) flat blade screwdriver to turn the Attenuator con-trol fully clockwise (–20 dB), fully counterclockwise (0 dB), or center (–6 dB). Inthe center detent position, the screw slot is horizontal when the transmitter is up-right.3. Readjust the Gain pot so the red “Audio” LED on the U4 receiver flickers only oc-casionally at the strongest peaks during a performance (see Figure 47).4. Orient the belt clip so that “Shure” is on the outside and toward the top (antennaside) of the transmitter. Carefully reinsert the clip’s wire bracket, one side at a time,into the body of the transmitter.30 31
ENGLISH ENGLISHTIPS FOR ACHIEVING OPTIMUM PERFORMANCESMaintain a line-of-sight between the transmitter and receiver antennas.Avoid placing transmitter and receiver where metal or other dense materi-als may be present.SAvoid placing the receiver near computers or other RF generating equip-ment.SAvoid placing the receiver in the bottom of an equipment rack unless theantennas are remotely located.SUse the proper receiver antennas.SPoint the antenna tips away from each other at a 45° angle from vertical,and keep them away from large metal objects.SMaintain a distance of at least 10 ft between the transmitter and receiver toprevent overloading the receiver.SDo not obstruct the transmitter antennas with your hands.SUse the proper cable when remotely locating receiver antennas. For best per-formance, use Shure UA825 or UA850 low loss coaxial antenna cable, or 50Ωlow loss cable such as RG8.SUse Shure UA830 Active Remote Antenna Kit for remote antenna placement.SMount diversity antennas at least 1/4-wave apart, although spacing of 1.5 m(60 inches) or more is preferred. This can be achieved by remote placementof one or both antennas using Shure UA825 or UA850 low–loss coaxialcable and a Shure UA830 Active Remote Antenna Kit. For multiple systeminstallations, use the Shure UA840 Antenna/Power Distribution System.TROUBLESHOOTINGSome common problems and their solutions are identified in the table below. If youare unable to solve a problem, contact your dealer or the Shure Service Departmentat 1-800-516-2525 (7:30 am to 4:00 pm, Central Standard Time). In Europe, call49-7131-72140; other international users call Shure in the U.S.A. at 847-866-2200.Problem SolutionNo sound; receiverRF light(s) andAUDIO LEDs notglowing.Make sure Power switches on transmitter and receiver are on.Check transmitter Power/Battery Fuel Gauge. Replace battery ifnecessary.Make sure transmitter and receiver frequency Group/Channel set-tings are identical.Check receiver squelch setting.Check receiver antenna connection(s).Make sure at least one antenna is in the line of sight of the transmit-ter. If necessary, reduce the distance between transmitter and re-ceiver.Problem SolutionNo receiver sound;RF and Audio Levelmeter LEDs glow-ing.Turn up the receiver audio output Level control.Check for proper connection between receiver and microphonemixer.Talk into the microphone and observe the receiver audio levelLEDs. If they glow, the problem is elsewhere in the sound system.Received signal isnoisy or containsextraneous soundswith transmitter on.Check transmitter Power/Battery Fuel Gauge and replace batteryif power is low.Remove local sources of RF interference, such as lighting equipment.If using a guitar or other instrument, make sure it is connected tothe U1 with a Shure WA302 adapter cable.Two transmitters may be operating on the same frequency. Locateand turn one off or change frequency.Signal may be too weak. Reposition antennas closer to the trans-mitter.Adjust receiver squelch control.Noise from receiv-er with transmitteroff.Adjust receiver squelch control.Remove local sources of RF interference, such as lighting equipment.Try using another frequency.Reposition the receiver or antennas.Momentary loss ofsound as transmit-ter is movedaround performingarea.Reposition receiver and perform another “walkthrough” test andobserve the RF level or Diversity signal indicators. If audio drop-outs persist, mark these “dead spots” in the performing area andavoid them during the performance.Decrease squelch control setting, even though noise in “deadspots” may increase slightly.Move antennas to a remote location (use UA830 kit)SPECIFICATIONSRefer to the supplement that came with your system.LICENSING INFORMATIONChanges or modifications not expressly approved by Shure Brothers Inc. could voidyour authority to operate the equipment. Licensing of Shure wireless microphone equip-ment is the user’s responsibility, and licensability depends on the user’s classificationand application, and on the selected frequency. Shure strongly urges the user to contactthe appropriate telecommunications authority concerning proper licensing, and beforechoosing and ordering frequencies other than standard frequencies.32 33
ENGLISH ENGLISHAPPENDIX: NETWORK INTERFACE PIN MAPThe U4S and U4D receivers both have a 25–pin network interface located on therear panel. The interface will allow future monitoring and control of all receiver func-tions, including audio level, RF level, and ‘’A/B” diversity indication, from a remotelocation via an interface device. The table below identifies the signal output by eachpin on the connector. Contact you Shure dealer for addition information.NOTE: Using any of the pins in the shaded area could result in system mal-function or damage to your receiver.Pin Receiver 1(Left)Receiver 2(Right)Connection ConnectionType Impedance VoltageRange1 Ground Ground NotApplicable0 V2 AudioMeterAnalog Output 1.2 kΩ0–2 VTypical0–5 VMaximum3RF Level B Analog Output 2.5 kΩ1–4 V4RF Level A Analog Output 2.5 kΩ1–4 V5Diversity B Analog Output 2 kΩ1–4 V6Diversity A Analog Output 2 kΩ1–4 V7Network In-terrupt Digital Input NotApplicable1–4 V8Network In-terrupt Digital Output/Busy NotApplicable1–4 V9Serial DataOutput Digital Output NotApplicable1–4 V10 Serial DataInput Digital Input NotApplicable1–4 V11 5V NotApplicable5 V12 5V NotApplicable5 V13 5V(indicatesunit is dualchannel)NotApplicable1–4 V14 AudioMeter Analog Output 1.2 kΩ0–2 VTypical0–5 VMaximum15 RF Level B Analog Output 2.5 kΩ1–4 V16 RF Level A Analog Output 2.5 kΩ1–4 VPin Receiver 1(Left)Receiver 2(Right)Connection ConnectionType Impedance VoltageRange17 Diversity B Analog Output 2 kΩ1–4 V18 Diversity A Analog Output 2 kΩ1–4 V19 Serial Clock Digital Input NotApplicable1–4 V20 Serial Clock Digital Input NotApplicable1–4 V21 NetworkInterruptDigital Input NotApplicable1–4 V22 NetworkInterrupt Digital Output/Busy NotApplicable1–4 V23 Serial DataOutput Digital Output NotApplicable1–4 V24 Serial DataInput Digital Input NotApplicable1–4 V25 Ground Ground NotApplicable0 V34 35

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