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1. speaker line Audio Input Audio Antenna Line Out 75 Ohms Minneapolis MN USA n c 24V Power SUPPLY CONNECTION FOR U S APPLICATION Connect the TFP 016 power supply to the Power In jack located on the rear of the T35 transmitter on the front of the T35 is pressed into the on position Supply Plug TFP 016 NOTE The power on the T35 will not be activated until the power button Power AUDIO SOURCE CONNECTIONS The T35 transmitter will accept the following audio sources 1 Balanced Microphone on a 3 pin XLR connector without simplex power 2 Balanced Microphone with 12 volt simplex power DIN 45596 on a 3 pin XLR connector 3 Balanced Unbalanced microphone without power on 1 4 inch jack 4 Balanced Unbalanced Line on a 3 pin XLR connector 5 Balanced Unbalanced Line on 1 4 inch jack WARNING The T35 is not designed to accept 70 volt speaker wire This may result in damage to your system The sound source should come directly from the system mixer or amplifier as an unprocessed signal NOTE If using a Williams Sound MIC 044 headset microphone with a 3 5mm plug you MUST use it with a WCA 083 electret adapter The T35 will not supply simplex phantom power through the 1 4 jack without an adapter IMPORTANT When a suitable audio source has been selected you MUST configure the audio source controls on the front panel of the T35 There are three possible selections to choose fro2. OOOO uO 722 Sound System PPA T35 Transmitter FM Receivers Amplifier Microphone Range may be affected by metal structures 500 feet is the maximum operating range of the T35 EZ WG WILLIAMS SOUND Helping People Hear QUICK SETUP INSTRUCTIONS Position the PPA T35 transmitter near the sound system or mixer from which it will receive audio Install the ANT 025 whip antenna Gently thread the ANT 025 onto the stud recessed in the hole on the top of the transmitter For best performance extend the antenna to its maximum height 39 Connect the power supply to the Power In connector Figure 5 located in the back of the T35 Press in the power button on the front of the T35 The On Air green LED indicator should illuminate If not go back and check the power connections Select an application The T35 has three pre configured Application Presets to choose from Hearing Assist Music and Voice The performance of the T35 is optimized for each selected application Using the menu control buttons on the front of the T35 Figure 2 press the v button to access FIG 2 LCD Menu Controls the Application Presets LCD screen Press the and menu buttons to alternate between Hearing Assist Music and Voice selec tion When the desired Application Preset is displayed press the Set button to save the change into mem
3. Digital Frequency Synthesized nun A Default 1 SC APPLICATION PRESETS APPLICATION PRESETS APPLICATION PRESETS Application Presets HEARING ASSIST gt gt MUSIC 4 VOICE Mi SET Mi SET BAHOW ITH Bandwidth D HARFROWBAHO muny BE Frequency d 12566 880 ua 7 Audio Source 4 d SET SET 7 HIGH PASS FILTER HIGH FASS FILTER High Pass Filter 555 hed el SET SET 7 OW PASS FILTER LOW PASS FILTER Low Pass Filter SZ KHZ 7 u 168 2 SET SET COMPRESSOR SLOPE COMPRESSOR SLOPE Compressor Slope h 5e SET SET gt COMPRESSOR GAIH COMPRESSOR GATH Compressor Gain REDUCED HORMAL SET RF OUTPUT RF OUTPUT RF OUTPUT RE OUTPUT RF Output q MEDIUM POWER p 4 LOW POWER OFF AIR p SET M3 SET SET WILLIAMS SOUND Helping People Hear LCD SCREEN Menus DETAILED APPLICATION PRESETS M1 The Application Presets screen allows the user to quickly and easily configure the T35 for common applica tions In some cases the Application Presets will be the only setup needed for properly configuring the T35 transmitter There are three Application Presets to choose from Hearing Assist Music and Voice When one of these selections is set the performance of the T35 is immediately optimized for the needs of that application an adju
4. Developed for hearing assistance in places of public access the PPA T35 is designed for those who need help overcoming background noise reverberation or distance from the sound source It includes a complete audio processor optimized for the needs of hearing impaired persons and is easily integrated with your existing sound system The PPA T35 can also be used with a microphone as a stand alone system Your PPA T35 transmitter operates much like an FM radio station The transmitter picks up the live audio directly from a microphone or sound system Those sounds are then broadcasted over an FM radio signal FM receivers are worn by the listener The broadcast can be picked up from up to 500 feet away This allows the listener to sit anywhere in the audience and listen to the broadcast as loud as needed without disturbing anyone else Please read through this manual carefully It includes important setup procedures and guidelines for proper operation If at any time you are having problems with this product please contact Williams Sound toll free for assistance 800 843 3544 NOTE FCC regulations section 15 21 requires the user to comply with the rules of transmitter operation Any changes or modifications made by the user not expressly approved for compliance may result in the loss of all privileges and authority to operate the equipment FIG 1 OVERALL SYSTEM DIAGRAM 2 Loudspeaker Line Level Output
5. The Audio Source menu has three possible selections to choose from MIC SIMPLEX MIC or LINE To select the audio input 1 Press the v menu button Figure 12 to access the LCD Audio Source M4 screen 2 Press the or menu buttons to select between MIC SIMPLEX MIC or LINE 3 When the desired audio input is displayed press the Set button to save the change into memory No additional action is necessary After 30 seconds of inactivity the LCD screen will return to the default display HIGH Pass Fitter M5 The high pass filter will help to remove low frequency noise from the transmitted audio signal This is typically used when there is room noise a line hum or breath accents picked up from an improperly installed microphone To select a High Pass Filter cutoff frequency 1 Press the down v menu button Figure 12 to select the LCD High Pass Filter M5 screen 2 Press the menu button to increase the cutoff frequency Each time the button is pressed the cutoff frequency will be raised by 1 2 octave This can be repeated until the cutoff frequency reaches the maximum 700 Hz Press the menu button to decrease the cutoff frequency Each time the button is pressed the cutoff frequency will be lowered by 1 2 octave This can be repeated until the cutoff frequency reaches the minimum 22 Hz 3 When the desired cutoff frequency is displayed press
6. Audio Processor is set for Normal Compression which may be inappropriate for the type of program being transmitted Reset the Compressor Gain control to Reduced See page 17 It could be that the T35 Compressor Slope ratio is set too high which may be inappropriate for the type of program being transmitted Reset the Compression Slope control to 1 0 1 See page 16 RECEPTION AT RECEIVER DIFFICULTIES NOTE Be sure to listen to the audio transmission on the T35 phone jack prior to checking the receiver reception No RECEPTION Check to see if the antenna on the T35 has been disconnected If so attach the antenna correctly Check to see if the RF output power on the T35 is set to OFF If so reset the RF Output control to FULL MEDIUM or LOW power See page 18 K 4 WILLIAMS SOUND Helping People Hear Make sure the FM receiver is ON Make sure the batteries are properly installed observing proper polarity If the batteries are rechargeable it may be necessary to charge the batteries overnight Make sure the FM receiver is operating on the same frequency as the T35 Make sure the receiver is operating on the same bandwidth as the T35 Wideband or Narrowband Follow tuning instruction for the receiver and adjust accordingly INSUFFICIENT RANGE GOOD RECEPTION NEAR TRANSMITTER POOR AT A DISTANCE gt Check to see if the transmitting antenna was installed incorrectly If so correct or replace the antenna Th
7. Make sure the power supply is properly installed and the power button is in the on position a Fic 10 Derautt DisPLAY MENU N Operating Frequency 2 300 MHz_ WIDEBAND Audio Input Level AUDIO IMPUT 16 86 MUSIC Ha FULL POWER Menu Screen Number Menu Lock Icon Application Preset Transmitting Power The default display will always show the following information Operating Frequelay Bandwidth Audio Input Level Transmitting Power and Application Preset In some cases the Menu Lock Icon will be displayed This indicates that the menu screens page 12 are locked which prevents any func tions from being accidentally changed except for the direct access functions To lock or unlock the menu screens press and hold the SET button on the front of the T35 for five seconds NOTE This will only work from the default display WILLIAMS SOUND Helping People Hear LCD Screen Menus QUICK REFERENCE The first screen MO gives important overall system settings The following nine menu screens M1 M9 are used to configure and setup the T35 To make a screen selection navigate to the desired LCD menu by press ing the v down button on the front of the T35 Press the Set button to save the change into memory Any changes not set will be lost After 30 seconds of inactivity the LCD will return to the default display Fic 11 SELECTING AN LCD MENU LED Menu Controls 9
8. pressed to the on position Make sure the 24 VAC power supply is working Make sure the RF output is not set to OFF AIR No AUDIO HEARD IN PHONES JACK Check to see if there is a signal coming from your audio source Check and correct your audio source if necessary Check to see if the Headphone Volume Level has been turned all the way down If so increase it Check to see if there is an incorrect or defective connection from your audio source See page 7 for detailed connection instructions Noise OR DISTORTION IN THE AUDIO Check to see if there is noise in the audio source To find out disconnect the audio cable If the noise disappears your noise problem is in the source Correct or repair your audio source Perhaps the Audio Source control is not set to match your audio source input device See page 15 to properly configure the Audio Source control menu Check to see if the Audio Input level is set too high If the input overload is illuminated then the audio level needs to be adjusted See page 10 Check for ground loops or noise on the input signal See page 9 for more information Call your Authorized Williams Sound dealer or representative NOISE IN AUDIO GROWS WHEN PROGRAM IS SILENT The Audio Level Control may be set too high You re probably also seeing the 6 level indicator lighting all the time To correct adjust the Audio Level control on the front of the T35 See page It could be that the T35
9. the Set button to save the change into memory No additional action is necessary After 30 seconds of inactivity the LCD screen will return to the default display IMPORTANT Listen to the transmitted audio through the headphone jack especially when decid ing on an appropriate high pass filter This is a good way to ensure the listening audience is going to receive the highest audio quality K 4 WILLIAMS SOUND Helping People Hear Low Pass FILTER M6 The low pass filter will help to remove high frequency noise from the transmitted audio signal This is typ ically used when there is a hiss is the audio line as a result of room noise speech sibilants or other high fre quency unpleasantries To select a Low Pass Filter cutoff frequency 1 Press the down v menu button Figure 12 to select the LCD Low Pass Filter M6 screen 2 Press the menu button to increase the cutoff frequency selection The cutoff frequency can be increased to a maximum of 16 0 kHz Press the menu button to decrease the cutoff frequency selection The cutoff frequency can be decreased to a minimum of 3 2 kHz 3 When the desired cutoff frequency is displayed press the Set button to save the change into memory No additional action is necessary After 30 seconds of inactivity the LCD screen will return to the default display IMPORTANT Listen to the transmitted audio through the headphone jack es
10. the transmitter To retune the receiver see page 23 Please read through this manual carefully for detailed instructions and setup procedures WILLIAMS 7 Helping People Hear SETTING UP THE T35 DETAILED INSTRUCTIONS SELECT A LOCATION The transmitter is usually located near the sound system amplifier or mixer for easy access to an audio output signal Position the transmitter on a level surface It should be free from metallic objects that might interfere with the antenna signal For permanent installation the PPA T35 transmitter can be rack mounted Use the Williams Sound RPK 005 or RPK 006 rack mount kits Make sure there is good electrical contact between the transmitter chas sis and the rack cabinet INSTALL THE ANT 025 Wuip ANTENNA NOTE If the T35 is going to be rack mounted you will not be able to install the ANT 025 whip antenna For rack mounting consider installing a remote antenna see following section The PPA T35 is shipped standard with a single ANT 025 whip antenna The ANT 025 threads on to a stud recessed in a hole on the top of the transmitter Screw the antenna clockwise until the connection is secure Figure 4 Do not use excessive force to tighten the antenna For maximum performance extend the ANT 025 antenna to its max height of 39 For operating the T35 in remote locations a coaxial antenna ANT 005 or Wall Mount Dipole antenna ANT 024 can be installed The ex
11. 45 21 5 cm W x 8 18 20 8 cm D x 1 72 4 4 cm H 3 1 Ibs 1 4 kg Black with white legends One EIA rack space high 1 2 space wide 1 2 units can be mounted in a single rack space with optional RPK 005 single or RPK 006 double Rack Mount Kits Wall mount Class II transformer TFP 016 Input 120VAC 60Hz 17W Output 24VAC 500mA with 3 pin Molex plug Approvals UL CSA listed Operating 0 C to 40 C 32 F to 104 F Storage 20 C to 70 C 4 F to 158 R 72 1 75 9 MHz 10 wideband channels selectable 7 non standard wideband channels selectable OR 72 025 75 975 Mhz 77 narrowband channels selectable 005 stability 0 50 C Wideband 75 kHz maximum Narrowband 5kHz maximum Wideband 75 usec Narrowband 300 psec Does not exceed 80 mV m at 3 m Maximum transmitter range is achieved using the ANT 005 coaxial antenna 300 500 ft 90 150 m Reduced or Normal Compressor Gain Compression Slope Control High Pass and Low Pass Filter Frequency control 22 16000 Hz 1 3 dB adjustable 74dB transmitted Push button audio level controls adjustable to 0 to 50dB 10 LED array that reads 9 to 18 at 3dB intervals Green LED indicates power on Mono signal 1 4 TRS stereo jack 67mW maximum in 50 ohms adjustable 0 to 40dB Combination 3 pin XLR 1 4 TRS jack RCA jack 10dBV 32VRMS output impedance 100 3 Applications Presets Music Voice Hearing Assist Bandwidth Frequency Audi
12. Battery Type R35 Alkaline AA Batteries BAT 001 100 hours Rechargeable AA NiMH BAT 026 56 hours R35 8 Alkaline AA Batteries BAT 001 50 hours Rechargeable AA NiMH BAT 026 32 hours BATTERY CHARGER INFORMATION IMPORTANT Batteries installed in the receiver may only be charged if they are NiMH or Ni Cad Batteries and only if a Williams Sound charger is used Make sure the receiver is turned off during charging Use the chart below to select a charger for your Williams Sound 72 76 MHz receiver Model Charger R35 and R35 8 Recharge batteries only with the CHG 3512 Multi Charger unit For additional charging instructions refer to the manual included with the charger unit IMPORTANT WARNINGS DO NOT ATTEMPT TO RECHARGE ZINC CARBON HEAVY DUTY ALKALINE OR LITHIUM BATTERIES DO NOT ATTEMPT TO RECHARGE DISPOSABLE BATTERIES These batteries may heat up and explode causing possible injury and damage to the equipment Avoid shorting the plus and minus battery terminals together with metal objects Battery damage and burns can result Use only Williams Sound supplied chargers and rechargeable batteries WILLIAMS SOUND Helping People Hear TROUBLE SHOOTING THE 135 ON AIR INDICATOR IS NOT ON gt Make sure the transformer TFP 016 is plugged into the transmitter and any remote power switch is on Make sure the electrical outlet is on Make sure the power button on the front of the T35 is
13. ENCY M3 First determine the bandwidth and frequency of the associated receiver then set the T35 to that bandwidth see above and frequency Available Frequencies 0 If the wideband operation is selected 10 wideband frequencies and 7 non standard wideband frequencies are available Standard Frequencies 72 100 CH A 72 300 CH B 72 500 CH C 72 700 CH D 72 900 CH E 74 700 CH 1 75 300 CH J 75 500 CH F 75 700 CH G and 75 900 MHz CH H Non standard Frequencies 72 2 CH K 72 4 CH N 72 6 CH 0 72 8 CH P 75 4 CH R 75 6 CH S 75 8 CH T If the narrowband operation is selected seventy seven narrowband frequencies are available 72 025 72 050 72 075 72 100 72 125 72 150 72 175 72 200 72 225 72 250 72 275 72 300 72 325 72 350 72 375 72 400 72 425 72 450 72 475 72 500 72 525 72 550 72 575 72 600 72 625 72 650 72 675 72 700 72 725 72 750 72 775 72 800 72 825 72 850 72 875 72 900 72 925 72 950 72 975 74 625 74 650 74 675 74 700 74 725 74 750 74 775 75 225 75 250 75 275 75 300 75 325 75 350 75 375 75 400 75 425 75 450 75 475 75 500 75 525 75 550 75 575 75 600 75 625 75 650 75 675 75 700 75 725 75 750 75 775 75 800 75 825 75 850 75 875 75 900 75 925 75 950 and 75 975 MHz The T35 is shipped from the factory with the frequency pre set to 72 900 MHz To change the frequency 1 Press the menu button to select the LCD Frequen
14. Hz 6 3 kHz 6 3 kHz 6 3 kHz High Pass Filter 500 Hz 125 Hz 500 Hz 125 Hz The Application Presets are designed to take the guess work out of common setup procedures There will be times when manual adjustments will need to be made i e to select a different operat ing frequency bandwidth to adjust the compression ratio etc For these requirements please read through the manual and follow the corresponding menu control instructions If you are unsure of how these changes will impact the performance of the T35 transmitter or how it will affect your hearing assistance application please contact Williams Sound for assistance at 800 843 3544 WILLIAMS SOUND Helping People Hear BANDWIDTH M2 The default LCD menu screen as shown on page 11 Figure 10 will always display the user selected bandwidth as Wideband or Narrowband The T35 is shipped from the factory in Wideband mode First determine the bandwidth of the associated receiver then set the T35 to that bandwidth 1 Press the v menu button Figure 12 to access the LCD Bandwidth M2 screen 2 Press the or menu buttons to select between Narrowband and Wideband 3 When the desired bandwidth is displayed press the Set button to save the change into memory No additional action is necessary After 30 seconds of inactivity the LCD screen will return to the default screen where the selected bandwidth will be displayed FREQU
15. NES Plug the earphone into the EAR jack on the top of the unit Only monophonic earphones will operate properly If stereo headphones are used sound will be heard only in one side Williams Sound evaluates each earphone and headphone used with the PPA R35 receiver we can only assure optimum perform ance when Williams Sound earphones and headphones are used OPERATING THE RECEIVER NOTE Check to make sure the T35 transmitter is on and receiving good audio input Also make sure the T35 is operating in Wideband mode and transmitting on the same frequency as the receiver If the R35 receiver needs to be re tuned most Williams Sound receivers are set at the factory at 72 9 MHz see page 23 for frequency change instructions Turn the receiver on by rotating the volume control knob clockwise The receiver s ON indicator should illuminate green Adjust the volume control for your comfort To turn the receiver off rotate the volume control knob counter clockwise until it clicks off The receiver s ON indicator should go dark To maximize battery life remember to turn the receiver off when it s not in use WILLIAMS SOUND Helping People Hear RECEIVER MopeL PPA R35 8 The PPA R35 8 is an eight channel receiver operating on 72 76 MHz bandwidth It features a chan nel selection knob volume on off control LED power and low battery indicator and an earphone jack See Figure 15A Instructions Fe 15A N Headphone Cha
16. NG FOR PPA R35 AND PPA R35 8 Do not immerse the earphone in water or other cleaning agent Foam pads may be removed and washed with a mild laundry soap solution rinsed thoroughly and air dried You may also opt to purchase new foam pads Call Customer Service for ordering information 1 800 843 3544 x SA WILLIAMS SOUND Helping People Hear RECEIVER WIDEBAND FREQUENCY CHANGE INSTRUCTIONS Selecting a frequency for the R 35 receiver requires an adjustment to the internal tuning coil s See Figure 17 to locate the coil to be adjusted A plastic tuning wrench PLT 005 will be needed to adjust these receiver tuning coil 6 17 N TUNING COIL Ferrite Tuning Slug Most R35 single channel Receivers are set at the factory to 72 9 MHz The Receiver must be tuned with a weak and somewhat noisy signal If tuned too close to the transmitter with a strong signal the most accurate tuning of the receiver is not possible To Change the Frequency to Another Channel Step 1 Set the transmitter to the channel desired and remove the antenna STEP 2 Connect an audio source to the transmitter such as a CD or cassette player or microphone STEP 3 Move the receiver about 25 feet away from the transmitter to set the tuning STEP 4 Open the battery compartment then pull the battery door to the left like a book to open the back of the receiver STEP 5 Locate the Tuning Coil see Figu
17. OPERATING THE RECEIVER 72 2 Plug the earphone or headphone into the Headphone jack on the receiver s control panel Turn the receiver on by rotating the Volume control knob The 72 5 ON indicator should illuminate RED Refer to the channel selection chart in a FIG 15B to choose from 8 standard frequencies Turn the channel selector 728 knob to the desired channel IMPORTANT Make sure the receiver fre 74 7 quency matches the transmitter frequency Adjust the volume to a com ee fortable listening level To turn the receiver off rotate the Volume control knob to the left until it clicks off The ON indicator should not be lit To pro long the battery life of the unit turn the receiver off when it is not in use 1 2 2 K A WILLIAMS SOUND Helping People Hear Bett CLIP INSTALLATION FOR PPA R35 AND PPA R35 8 To INSTALL Position the belt clip on the rear of the R 35 and R35 8 receivers as shown in Figure 16a Turn the belt clip 180 left or right as shown in Figure 16b The belt clip is now installed and ready for use To REMOVE Turn the belt clip 180 so the edge points toward the top of the unit as shown in figure 16b Gently pull the belt clip away from the unit to remove FIGURE 16A FIGURE 168 A www williamssound com www williamssound com EARPAD CLEANI
18. Please do NOT dispose of used batteries in the household trash Please take the batteries to a retail or community collection point for recycling WILLIAMS SOUND Helping People Hear WIDEBAND FM RECEIVERS OPTIONAL RECEIVER Moner PPA R35 The PPA R35 is a single channel receiver operating on the 72 76 MHz bandwidth It features volume on off control LED power and low battery indicator and an earphone jack see Figure 14 Instructions Fre 14 On Off Volume Switch Volume Earphone On Indicator Jack LED k R35 Front BF BATTERY INSTALLATION Install two 2 AA alkaline or NiMH rechargeable batteries Open the battery compartment by lifting the tab on the back of the receiver with a finger To remove depleted batteries pull up on the fabric strip IMPORTANT If Alkaline non rechargeable batteries are being installed slide the battery selection switch above the battery compartment to the Alkaline position If installing NiMH or rechargeable batteries slide the battery selection switch to the NiMH position Press the batteries into place over the fabric strip Be sure to observe proper polarity Damage due to improper battery installation may void the warranty on the product Close the battery door When the sound becomes weak or distort ed replace or recharge the batteries NOTE The ON indicator will illuminate RED to indicate low battery CONNECTING EARPHO
19. R WHICH THIS PROD UCT IS USED WILLIAMS SOUND THEREFORE DISCLAIMS ALL WARRANTIES NOT SET FORTH ABOVE BOTH EXPRESS AND IMPLIED WITH RESPECT TO THE PERSONAL PA TRANSMITTER INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTY OF MER CHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE WILLIAMS SOUND SHALL NOT BE LIABLE TO ANY PERSON OR ENTITY FOR ANY MEDICAL EXPENSES OR ANY DIRECT INCI DENTAL OR CONSEQUENTIAL DAMAGES CAUSED BY ANY USE DEFECT FAILURE OR MAL FUNCTIONING OF THE PRODUCT WHETHER A CLAIM FOR SUCH DAMAGES IS BASED UPON WARRANTY CONTRACT TORT OR OTHERWISE THE SOLE REMEDY FOR ANY DEFECT FAIL URE OR MALFUNCTION OF THE PRODUCT IS REPLACEMENT OF THE PRODUCT NO PERSON HAS ANY AUTHORITY TO BIND WILLIAMS SOUND TO ANY REPRESENTATION OR WARRANTY WITH RESPECT TO THE PERSONAL PA TRANSMITTER UNAUTHORIZED REPAIRS OR MODI FICATIONS WILL VOID THE WARRANTY The exclusions and limitations set out above are not intended to and should not be construed so as to con travene mandatory provisions of applicable law If any part or term of this Disclaimer of Warranty is held to be illegal unenforceable or in conflict with applicable law by a court of competent jurisdiction the validity of the remaining portions of this Disclaimer of Warranty shall not be affected and all rights and obligations shall be construed and enforced as if this Limited Warranty did not contain the particular part or term held to be invalid If you experience difficulty
20. X A WILLIAMS SOUND Helping People Hear MANUAL AND USER GUIDE PERSONAL PA T35 Transmitter Wireless FM Listening System Transmitter Model PPA T35 Optional Receiver Models R35 R35 8 MAN 110J PERSONAL T35 TRANSMITTER MANUAL AND USER GUIDE CONTENTS SYSTEM OVERVIEW Quick SETUP INSTRUCTIONS DETAILED INSTALLATION INSTRUCTIONS SELECT A LOCATION INSTALLING THE ANTENNA WIRING AND CONNECTIONS REAR PANEL CONNECTING THE POWER SUPPLY AUDIO SOURCE CONNECTIONS CHOOSING AN AUDIO SOURCE FOR THE HEARING IMPAIRED AVOIDING GROUND LOOPS CONNECTING TO A RECORDING DEVICE CONTROLS AND FEATURES FRONT PANEL CONTROLS LCD SCREEN MENUS APPLICATION PRESETS BANDWIDTH FREQUENCY AUDIO SOURCE HIGH Pass FILTER Low Pass FILTER COMPRESSOR SLOPE COMPRESSOR GAIN RF Output SAFETY INFORMATION RECYCLING INSTRUCTIONS RECEIVER INSTRUCTIONS FREQUENCY CHANGE INSTRUCTIONS RECEIVER MANAGEMENT BATTERY INFORMATION TROUBLE SHOOTING GUIDE WARRANTY SYSTEM SPECIFICATIONS WILLIAMS SOUND Helping People Hear SYSTEM OVERVIEW The PPA T35 is an FM Wide band Narrow Band transmitter which operates in the 72 76 MHz frequency bandwidth It is designed to be used with battery powered FM receivers Compatible Williams Sound receivers include the R35 and R35 8 Wide Band Please contact Williams Sound Corp for more information on avail able receivers 800 843 3544 Or visit us on the web www williamssound com
21. an effective audio processor If compression is desired in the audio refer to page 16 17 for features and controls Excessive compression is not helpful to the hearing impaired and can contribute to excessive noise in the receiver outputs The T35 audio source signal is usually connected to a mixer s line output signal which is behind the mixer s parametric equalizers but ahead of any equalization used for house loudspeakers If audio delay is available for use in large auditoriums it s usually best to use it Because radio signals travel faster than sound delaying the transmitted audio so that an average listener in the middle of the listening area hears the transmitted audio a few milliseconds after audio from the main sound reinforce ment system speaker is helpful This will also help audience members who lip read WILLIAMS SOUND Helping People Hear AVOIDING Hum IN THE AUDIO AS A RESULT OF A GROUND Loop A hum created by a ground loop can often be eliminated by connecting a capacitor in series with the audio line shield to the transmitter s ground This method also maintains good RF shielding Determining the effectiveness of this method for your installation usually requires some experimentation See Figure 7 a Fic 7 CONNECTING TO BALANCE UNBALANCED LINE 01 uF Ceramic Disc Capacitor i 3 Pin Connector Breaking A Ground Loop when Breaking A Ground Loop when Connecting to a Unbalanced Line Conn
22. ction by the user after five seconds the LCD menu screen will return to the default display Figure 10 HEADPHONE VOLUME DIRECT Access The headphone level can be increased or decreased by using the Volume direct access buttons next to the headphone jack Pressing or holding down the volume control button increases the headphone level in 0 5dB steps Pressing or holding down the volume control button decreases the head phones level in 0 5dB steps Holding down a Volume button continuously will automatically increase decrease the input level in 5dB increments until the button is released or the limit is reached Each action is immediately displayed on the LCD menu screen as the buttons are pressed If there is no further action by the user after five seconds the LCD menu screen will return to the default display Figure 10 LCD Menu DisPLay The LCD display is used with the menu control buttons for configuring and setting up the T35 When the power of the unit is first turned on the LCD screen displays a Williams Sound start up screen NOTE If the transmitter is not fully functional the transmitter will stay on the start up screen and the transmitter will not transmit After seven seconds the On Air LED will illuminate and the default screen will be displayed Figure 10 The T35 is now fully operational If the On Air indica tor does not illuminate go back and double check the connections page 7
23. cy M3 screen 2 To increase the frequency press the menu button To decrease the frequency press the menu button Holding down the or menu buttons will change the frequency automatically until the highest or lowest available frequency has been met 3 When the desired frequency is displayed press the Set button to save the change into memory No additional action is necessary A new adjustment may now be made or after 30 seconds of inactivity the LCD screen will return to the default screen where the selected frequency will be displayed NOTE The T35 will not broadcast on the newly selected frequency until the set button has been pressed REMINDER If the lock icon is displayed on the default display the menu screens are locked and you will not be able to make changes To unlock the menu screens refer to the instructions on page 11 x SA WILLIAMS SOUND Helping People Hear Aup o Source M4 The Audio Source control menu is used to configure the T35 for a proper audio source connection The transmitter will accept the following audio sources 1 Balanced Microphone on a 3 pin XLR connector without simplex power 2 Balanced Microphone with 12 volt simplex power DIN 45596 on a 3 pin XLR connector 3 Balanced Unbalanced microphone without power on 1 4 inch jack 4 Balanced Unbalanced Line on a 3 pin XLR connector 5 Balanced Unbalanced Line on 1 4 inch jack
24. e input circuit The source of the audio coming in to the T35 needs to be adjusted to correct this NOTE Direct Access Buttons Figure 9 allow the user to change configurations on the transmitter immediately without having to scroll through the menu controls Page 12 When a direct access button is pressed the change is immediately displayed on the LCD Menu Display AUDIO LEVEL DIRECT ACCESS Pressing or holding down the Audio Level button increases the audio input level in 5dB steps Pressing or holding down the audio level button decreases the audio input level in 5dB steps Holding down an Audio Level button continuously will automatically increase or decrease the audio input in 5dB increments until the button is released or the upper and lower limits are reached Each action is immediately displayed on the LCD default display Figure 10 WILLIAMS SOUND Helping People Hear PHONES JACK AND SOURCE BUTTON A headset plugged into the Phones jack allows monitoring either the audio output as it is processed and transmitted by the T35 or the T35 audio input before it gets processed By default the phone jack audio is set for TRANSMITTED audio Pressing and holding down the Source button will select INPUT audio The setting is immediately displayed on the LCD menu screen Releasing the Source button will immediately return the selection to TRANSMITTED audio If there is no further a
25. e signal should be clearly audible at a 300 foot distance with the ANT 025 and a 500 foot distance with the ANT 005 Make sure the transmitting antenna is not in an unsuitable location Perhaps the transmitting antenna was installed inside a metal enclosure or is separated from the reception area by electrically conducting objects i e steel stud walls heating ducts substantial structural steel or 2x2 or 2x4 ceiling grid In either case reinstall the antenna according to installation instructions locating it outside metal enclo sures and away from electrically conducting objects Perhaps there is a strong interfering signal If so make sure the transmitter and antenna are correctly installed Set the transmitter to FULL power output If this does not solve the problem try operating the transmitter on a different frequency If operating the T35 in wideband mode try switching to narrow band operation see page 14 Narrowband operation is more resistant to outside interference USERS MUST TURN RECEIVER VOLUME CONTROLS WAY UP TO 4 OR 5 TO GET ENOUGH VOLUME Perhaps there is insufficient audio level If so the audio level indicator will read too low because the audio level control is set incorrectly on the transmitter Correct the Audio Level control setting See page 10 It could be that the audio input is not configured for the audio source being used If not correct the setting of the Audio Source control menu See page 15 Some use
26. ecting to a Balanced Line Pi CONNECTING THE T35 TO A RECORDING DEVICE Use the Audio Line Out jack for monitoring recording or routing processed audio to another sound system S Fic 6 LINE OUTPUT gt PPAT35 i ADe aa 3 EN Recording Device Audio Line Out Audio Line In x WILLIAMS Helping People Hear CONTROLS amp FEATURES an 9 PPA T35 Front VIEW Input 5 overload 3 6 Audio Level 15 E PPA T35 x Direct Access Buttons Digital Frequency Synthesized 72 308 MH2 WIDEBAME AUDIO INPUT 16 606 rk Ha FULL POWER a poo LCD Menu Display Menu Control Buttons Source Direct Access Buttons Power BUTTON Push button switch turns the transmitter on or off The wall mounted power supply stays on at all times ON INDICATOR Indicates when power is on and radio frequency is transmitting AUDIO LEVEL INDICATOR The bar graph indicator shows audio level in 3dB steps at the input of the audio level processing circuit The indicator is peak responding and is calibrated so that optimum level is reached when the OdB LED generally lights and 9dB lights occasionally Use the Audio Level controls to set the audio levels INPUT OVERLOAD INDICATOR A red LED indicator will illuminate each time the audio signal exceeds the capacity of th
27. ertain the transmitter chassis is connected to the equipment cabinet rails Buzz hum in system may be experienced when the T35 chassis is insufficiently grounded In this case install a ground wire to the T35 chassis and terminate to a known good ground source Make sure antenna connections are secure Set the T35 Transmitter to MEDIUM power output on the RF Power menu choice Install transmitter at a distance from sensitive equipment Use a remote antenna ANT 005 or ANT 024 Make sensitive equipment more immune to RFI EMI The manufacturers of your audio equipment may offer application notes for this purpose Williams Sound offers a document giving suggestions for improving RF immunity in existing audio equipment Technical Bulletin Buzz Or Hum In The Sound System FRM 531 WILLIAMS SOUND Helping People Hear LIMITED WARRANTY Williams Sound products are engineered designed and manufactured under carefully controlled conditions to provide you with many years of reliable service Williams Sound warrants the Personal PA Transmitter against defects in materials and workmanship for FIVE 5 years During the first five years from the pur chase date we will promptly repair or replace the Personal PA Transmitter Microphones earphones headphones batteries cables carry cases and all other accessory products carry a 90 day warranty Chargers carry a one year warranty WILLIAMS SOUND HAS NO CONTROL OVER THE CONDITIONS UNDE
28. m MIC SIMPLEX MIC and LINE SEE PAGE 15 FOR AUDIO SOURCE CONTROLS After the audio source selection has been made plug in the appropriate audio source into the Audio Input jack in the rear of the T35 WILLIAMS SOUND Helping People Hear Fic 6 AUDIO SOURCE CONNECTORS In Phase From In Phase 3 Pin Connector 3 Pin Connector Low Impedance Microphone Balanced Line Using 1 4 Connector Balanced Line Using 3 Pin Connector Source A v 3 Pin Connector SourceB 4 Unbalanced Line Using Unbalanced Line Using 1 4 Connector Connecting to a Multi Channel or 3 Pin Connector Stereo Source MuitI CHANNEL SOURCES By constructing a simple resistive mixer stereo or 3 channel sources can be connected to the T35 Additional channels can be accommodated by adding a resistor for each source Necessary resistors can be obtained from Williams Sound Part Number RFC 472 or from any local electronics parts supplier See Figure 6 SELECTING AN AUDIO SOURCE APPROPRIATE FOR HEARING IMPAIRED LISTENERS If the T35 is going to be used specifically for the accommodation of hearing impaired listeners we rec ommend following these general guidelines The PPA T35 transmits audio with excellent fidelity Therefore the audio source signal should be of the highest audio quality and not subject to a compressor limiter reverberation or other signal processing equipment The T35 has
29. n operating range of up to 500 ft For special listening applications it may be desirable to reduce the overall operating range on the T35 if 1 The audio transmission is to be contained to a smaller listening area 2 The signal is too strong and it is overloading the receiver or 3 Multiple T35 transmitters are used in adjacent classrooms where the FM signals overlap each other In these cases the power level on the T35 can be reduced to MEDI UM or LOW The RF output may be set to OFF AIR no power to help troubleshoot interfering or overlapping RF signals To select a power level 1 Press the v menu button Figure 12 to access the RF Output M9 screen 2 Press the and menu button to select between FULL POWER MEDIUM POWER LOW POWER and OFF AIR 3 When the desired power level is displayed press the Set button to save the change into memory No additional action is necessary After 30 seconds of inactivity the LCD screen will return to the default display where the selected power level will be displayed WILLIAMS SOUND Helping People Hear RECEIVER SAFETY INFORMATION HEARING SAFETY CAUTION This product is designed to amplify sounds to a high volume level which could poten tially cause hearing damage if used improperly To protect your hearing and the hearing of others 1 Make sure the volume is turned down before putting on the earphone or headphone before adjus
30. necessary NOTE The installer of the T35 needs to take care in using compression because some hearing impaired people cannot tolerate as loud of a sound as those with normal hearing K SA WILLIAMS SOUND Helping People Hear a FIG 13 AUDIO PERFORMANCE USING COMPRESSION LEVELINDICATOR 18 15 12 9 6 3 0 3 6 9 REFERENCE Lot 1 0 1 RATIO NORMAL or REDUCED GAIN 3 5 1 RATIO REDUCED GAIN _ 3 51 RATIO NORMAL GAIN COMPRESSION GAIN REDUCED ADJUSTMENT RANGE NORMAL ADJUSTMENT RANGE AUDIO OUTPUT LEVEL IN RECEIVER RELATIVE 111 1111 1111 1111 1111 111111111 111111111 111111111 1111 30 98 20 dB 10 dB 0 98 10 dB 20 dB a AUDIO INPUT LEVEL RELATIVE 2 Compressor GAIN M8 The T35 has two selectable modes of compression Normal and Reduced For applications such as music and voice where the highest audio quality is desirable Reduced compression is the recommended mode of operation Reduced compression minimizes the amount of boost and disturbances in the sound which compression can cause For hearing assistance or applications where the transmitting message is critical for listening the T35 can be set to Normal Compression gain Normal compression boosts the soft audio sounds for a more understand able consistent delivery This may be appropriate for applications where the listening audience has moderate to severe hearing lo
31. nnel Jack Selector Knob On Low Battery On Off Switch Indicator LED Volume Control R35 8 Top C R35 8 Front J BATTERY INSTALLATION Install two 2 AA alkaline or NiMH rechargeable batteries Open the battery compartment by lifting the tab on the back of the receiver with a finger To remove depleted batteries pull up on the fabric strip IMPORTANT If Alkaline non rechargeable batteries are being installed slide the battery selection switch above the battery compartment to the Alkaline position If installing NiMH or rechargeable batteries slide the battery selection switch to the NiMH position Press the batteries into place over the fabric strip Be sure to observe proper polarity Damage due to improper battery installation may void the warranty on the product Close the battery door When the sound becomes weak or distorted replace or recharge the batteries NOTE The ON indicator on top of the unit will flash to indicate low battery CONNECTING EARPHONES Plug the earphone into the EAR jack on the top of the unit Only monophonic earphones will oper ate properly If stereo headphones are used sound will be heard only in one side Williams Sound evaluates each earphone and headphone used with the PPA R35 8 receiver Fic 15B we can only assure optimum performance when Williams Sound earphones requency Wideband R35 8 and headphones are used MHz Channel Switch Selection 72 1
32. o Input Source Microphone Line Simplex High Pass Filter Low Pass Filter Compressor Slope Compressor Gain RF Output Power Nominal 1st Amber LED Maximum Input Overload LED Absolute Maximum Ratings 60dBV ImVRMS 20dBV 100mVRMS 20dBV 10 0VRMS 8dBV 400mVRMS 16dBV 6 3VRMS 20dBV 10 0VRMS 12 volts simplex power DIN 45596 on the 3 pin XLR connector Turns off RF signal after 1 hour of no audio activity Mic or Line gt 57dB 1kHz lt 0 25 10dBV audio line output 1kHz FCC WEEE Five Years Parts and Labor 90 days on cords antenna power supply and accessories SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE INotes Stresses above these ratings may cause permanent damage Exposure for extended periods may degrade reliability WILLIAMS SOUND Helping People Hear Personal PA Receiver Model R35 Dimensions Weight Color Battery Type Current Consumption Operating Freq Intermediate Freq FM Deviation De Emphasis AFC Range Sensitivity Input Overload Frequency Response Signal to Noise Ratio Receive Antenna Audio Output Output Connector Earphone Notes Approvals Warranty 4 1 L x 2 85 W x 1 2 H 104 1 mm x 72 4 mm x 30 4 mm 4 5 oz 127 g Gray Two 2 AA non rechargeable alkaline batteries BAT 001 approx 100 hrs battery life or Two 2 AA rechargeable NiMH batteries BAT 026 1600 mAh approx 56 hrs battery life Nominal 40 mA Pre t
33. one jack Located inside battery door Factory set for 25 dB S N Squelch may be set with JFD 7104 5 from Sprague Goodman or any flat tipped tuning tool with tip size 095 X 016 The R35 8 is NOT field tunable The eight channels have been carefully selected to inhibit inter modulation interference Channel frequencies are 72 1 72 3 72 6 72 8 74 7 75 4 75 7 and 75 9 MHz FCC Industry Canada ROHS WEEE Five Years Parts and Labor 90 days on cords earphones headphones batteries and other accessories Note FCC rules limit the use of the 72 76 MHz band to hearing assistance SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE WILLIAMS SOUND Helping People Hear 7 WILLIAMS SOUND Helping People Hear 10321 West 70th St Eden Prairie MN 55344 U S A 800 843 3544 952 943 2252 FAX 952 943 2174 MAN 10J 2007 Williams Sound Corp www williamssound com
34. ory The T35 is shipped from the factory in wideband mode with the fre quency set to 72 900 MHz To change the frequency or bandwidth on the T35 refer to the instructions on page 14 Front panel of the T35 Configure the T35 for the appropriate audio source Using the menu con trol buttons on the front of the T35 Figure 2 press the v button to access the Audio Source LCD screen Using the and menu FIG 3 Audio Input Controls buttons Figure 2 choose between MIC SIMPLEX MIC or LINE When the desired audio input is displayed press the Set button to save the change into memory Lastly connect the audio source to the audio input jack in the rear of the T35 transmitter With the audio source playing adjust the Audio Level control on the T35 so that the green 0 dB LED generally lights and the red 9 dB LED lights occasionally Press the Audio Level button to increase the audio level in 5dB steps Press the Audio Level button to decrease Front panel of the T35 the audio level in 5dB steps See Figure 3 Listen with an FM receiver see pages 20 21 for compatible Williams Sound receivers Install the batteries plug in the earphone turn on the receiver and walk around the listening area The signal should be clear and quite loud when the volume is turned up IMPORTANT The FM receiver being used with the T35 transmitter will need to be on the same frequency and bandwidth as
35. pecially when deciding on an appropriate low pass filter This is a good way to ensure the listening audi ence is going to receive the highest audio quality COMPRESSOR SLOPE M7 Compression is typically used for voice and hearing assistance applications It reduces the dynamic range For a listener who has difficulty hearing the quiet sounds of an audio broadcast compression will boost the quiet sounds to louder listening levels For listening to music programs concerts etc lower compression ratios or no compression is generally used The Compressor Slope has the following selectable compression ratios 1 0 1 1 1 1 1 2 1 1 3 1 1 4 1 1 5 1 1 6 1 1 8 1 2 0 1 2 2 1 2 5 1 3 0 1 3 5 1 4 0 1 4 5 1 5 0 1 5 5 1 6 0 1 NOTE The T35 is shipped from the factory at a 1 0 1 compression ratio no compression To select a compression ratio 1 Press the v menu button Figure 12 to select the LCD Compressor Slope M7 screen 2 Press the menu button to increase the steps of compression The compression ratio can increase to a maximum of 6 1 which produces generally loud output even at very low audio level signals Press the left menu button to decrease the steps of compression The compression can be lowered to a minimum ratio of 1 0 1 which is no compression 3 When the desired compression ratio is displayed press the Set button to save the change into memory No additional action is
36. re 17 Each tuning coil is a small square shiny metal can with a screwdriver slot in a tuning slug in the top center The Tuning Slug is usually black or gray K 4 WILLIAMS SOUND Helping People Hear SUGGESTIONS FOR RECEIVER MANAGEMENT Different types of facilities use varying approaches to receiver management and earphone sanitation Below are some options that customers have used successfully Regular users purchase or are given their own receiver and take care of their own batteries and earphones The facility labels a receiver and earphone for each regular user The facility maintains the units Ushers issue receivers to people who request them Earphones are sanitized after use Foam ear cushions can be replaced or washed with a mild detergent rinsed thoroughly and air dried The EAR 022 Surround Earphone can be sanitized with an alcohol pad The receivers can be stored in a multiple compartment storage case with a credit card or driver s license left as collateral for the receiver Regular users purchase their own earphone or headphone and bring them to use with receivers at the facility RECEIVER BATTERY INFORMATION ALL RECEIVER MODELS If the receiver sound becomes weak or distorted replace the battery The indicator light may remain on even with a battery that is weak Do not leave dead batteries in the receivers The chart below shows typical battery life with Williams Sound s 72 76 MHz receivers Model Battery Life
37. rs may not be helped by this system Severe hearing loss may require using the system with a telecoil coupler i e Neckloop and personal hearing aid Check your batteries For non rechargeable alkaline batteries they may need replaced If you are using rechargeable batteries make sure the batteries are fully charged prior to use USERS COMPLAIN OF TOO MUCH NOISE DURING SOFT AUDIO DYNAMIC RANGE OF MUSIC REDUCED TOO GREATLY Check to see if the Audio Level control is set too high This problem is more likely to occur in Normal Compression mode but can also occur in Reduced Compression mode To reduce this noise adjust the Audio Level carefully noting the Level Indicator The 6 LED should light occasionally Perhaps the transmitter is set for Normal Compression when Reduced Compression would be more suitable given the program material If so set the Compressor Gain control to Reduced Compression See page 17 WILLIAMS SOUND Helping People Hear Buzz IN OTHER EQUIPMENT WHEN TRANSMITTER IS ON OR OFF This is not an RF problem Instead it is likely caused by incorrect audio connections a ground loop or defective equipment To remedy use proper audio wiring practice to make connections described on page 8 Buzz OR OTHER NOISE IN EQUIPMENT ONLY WHEN TRANSMITTER IS ON This is likely an RF induced disturbance in the other equipment To remedy try these steps in order until the buzz is eliminated 1 K Make c
38. ss Additional compression can be added if desirable by adjusting the Compressor Slope control See page 16 Normal compression gain is generally not desirable for applications such as music concerts etc NOTE The T35 is shipped from the factory in the Reduced mode To select Reduced or Normal Compression 1 Press the v menu button Figure 12 to access the LCD Compressor Gain M8 screen 2 Press the or menu buttons to select between Reduced and Normal compressor gain 3 When the desired compressor gain is displayed press the Set button to save the change into memory No additional action is necessary After 30 seconds of inactivity the LCD screen will return to the default display NOTE The installer must take care in using compression Adding too much compression may con tribute to excessive noise in the listener s receivers IMPORTANT Listen to the transmitted audio through the headphone jack especially when deciding on an appropriate compressor gain and slope This is a good way to ensure the lis tening audience is going to receive the highest audio quality x 4 WILLIAMS SOUND Helping People Hear RF Output M9 The T35 has three selectable transmitter power levels FULL MEDIUM LOW POWER or OFF AIR By default the T35 is set to Full power mode For general listening applications FULL power is the preferred mode of operation Full power provides the T35 with a
39. stment is automatically made to the Low High Pass Filter and Compressor Slope controls Refer to the chart below for a comparison of the Application Preset configurations By default the T35 is shipped in the Music mode For music concerts and other applications where the highest audio quality is desirable Music is the recommended mode of operation For hearing assistance applications or applications where the message is critical for listening Hearing Assist is the recommended mode of operation For speaking and other voice applications Voice is the preferred mode of operation To select an Application Preset 1 Press the v menu button Figure 12 to access the LCD FIGURE 12 Application Presets screen M1 LCD Menu Controls 2 Press the or menu buttons to select between Hearing Assist Music and Voice 3 When the desired Application Preset is displayed press the Set button to save the change into memory No additional action is necessary After 30 seconds of inactivity the LCD screen will return to the default screen where the selected Application Preset will be displayed NOTE After an Application Preset has been selected any of the configurations can manually be changed if necessary Front panel of the T35 APPLICATION PRESET CONFIGURATION TABLE RF Output Full Power Compressor Gain Normal Wide Band Narrow Band Hearing Assist Hearing Assist Low Pass Filter 8 0 kHz 16 kHz 6 3 k
40. ternal antenna jack is located at the rear of the T35 transmitter Figure 4 The external antenna impedance is 75 ohms g FIG 4 INSTALLING THE ANTENNA Included ANT 025 Whip Antenna T35 REAR VIEW Optional Coaxial Antenna ANT 005 or C Wall Mount Dipole ANT 024 A gt REMOTE ANTENNA TIPS Position the ANT 005 or ANT 024 antenna so the elements are vertical The last 80 inches of the ANT 005 contain the elements DO NOT install the antenna elements horizontally The antenna should be placed as close to the listening area as possible 10 to 15 feet above the floor DO NOT install the antenna directly above the listening area There is a null in the coverage area off the ends of the anten na DO NOT install the antenna around any significant amount of metal material this may deflect and absorb the radio signal The ANT 005 and ANT 024 cables are classified as Class II wiring and may be installed in conduit with other Class II wiring The antenna SHOULD NOT be installed with Class I power wiring DO NOT connect the coaxial cable to the building or electrical ground in any way WILLIAMS SOUND Helping People Hear WIRING AND CONNECTIONS FIG 5 Rear View OF T35 PPA T35 FM Transmitter X A XLR Bal Unbal Mic 0 9 Bal Mic Simplex Williams Sound Corp Bal Unbal line m RS Bal Unbal Mic Bal Unbal Line Powerin CAUTION Do not 24 VAC connect to 70V 50 60 Hz LJ
41. ting the volume to a comfortable level Set the volume level at the minimum setting that you need to hear If you experience feedback a squealing or howling sound reduce the volume setting and move the microphone away from the earphone or headphone Do not allow children or other unauthorized persons to have access to this product BATTERY SAFETY AND DISPOSAL CAUTION This product is supplied with disposable Alkaline batteries Do not attempt to recharge disposable batteries which may explode release dangerous chemicals cause burns or other serious harm to the user or product PACEMAKER SAFETY CAUTION 1 Before using this product with a pacemaker or other medical device consult your physician or the manufacturer of your pacemaker or other medical device If you have a pacemaker or other medical device make sure that you are using this product in accordance with safety guidelines established by your physician or the pacemaker manufacturer RECYCLING INSTRUCTIONS BATTERY SAFETY AND DISPOSAL K Help Williams Sound protect the environment Please take the time to dispose of your equipment properly Product Recycling for Customers in the European Union Please do NOT dispose of your Williams Sound equipment in the household trash Please take the equipment to a electronics recycling center OR return the product to the factory for proper disposal Battery Recycling for Customers in the European Union
42. uned adjustable 72 MHz 76 MHz 75 kHz 75 kHz 75 uS 120 kHz 2 uV at 12 dB Sinad with squelch defeated 20 mV 100 15 kHz 3 dB 65 dB at 10 pV Integral with earphone headphone cord 35 mW max at 16 Q 3 5 mm mono phone jack Earbud type with foam cushion 3 5 mm plug 32 Q The R35 Receiver can be field tuned to any of 17 wideband channels using the PLT 005 Tuning Tool FCC Industry Canada ROHS WEEE Five years parts and labor 90 days on cords earphones headphones batteries and other accessories Personal PA Receiver Model R35 8 Dimensions Weight Color Battery Type Current Consumption Operating Freq Intermediate Freq FM Deviation De emphasis LED Indicator Sensitivity Input Overload Frequency Response Signal to Noise ratio Receive Antenna Audio Output Output Connector Squelch Notes Approvals Warranty 45 H x 2 85 W x 1 2 D 115 mm x 72 mm x 30 mm 4 6 oz 130 g Gray Two 2 AA non rechargeable alkaline batteries BAT 001 approx 50 hrs battery life or Two 2 AA rechargeable NiMH batteries BAT 026 1600 mAh approx 32 hrs battery life Nominal 40 mA 8 channels 72 1 72 3 72 6 72 8 74 7 75 4 75 7 or 75 9 MHz 10 7 MHz 75 kHz 75 us Power Red Low Battery Flashes 2 uV at 12 dB SINAD with squelch defeated 20 mV 40 Hz to 15 kHz 3 dB 60 dB at 100 uV Integral with earphone headphone cord 35 mW max 16 ohm load 3 5 mm mono ph
43. with your system call Toll Free for customer Assistance 1 800 843 3544 U S A or 1 952 943 2252 World If it is necessary to return the system for service your Customer Service Representative will give you a Return Authorization Number RA and shipping instruction Pack the system carefully and send it to Williams Sound Corp Attn Repair Dept 10321 West 70th Street Eden Prairie MN 55344 USA Your warranty becomes effective the date you purchase your system Your returned warranty card is our way of knowing when your warranty begins It also gives us important information about your system including the serial number This information will help us serve you better in the future Please take a moment to com plete and mail the attached card Thank you WILLIAMS SOUND Helping People Hear SYSTEM SPECIFICATIONS Personal PA T35 Transmitter Dimensions Weight Color Rack Mount Temperature Range Operating Freqs Frequency Accuracy Deviation Pre Emphasis RF Field Strength Note Nominal Range Audio Proc Functions Frequency Response Signal to Noise Ratio Audio Level Control Audio Level Indicators Power On Indicator Phones Output Audio Input Line Output LCD Menu Controls Push button selection Input Levels Bal or Unbal Microphone Simplex Mic Line Simplex Mode RF Off Timer Common Mode Rejection Total Harmonic Distortion Approvals Warranty 8
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