Users Manual - Centrum Sound
Contents
1. frequency selector buttons for 3 seconds until the word Loc appears on the display The frequency is now locked Should the user press the frequency selector button while in Lock mode the word Loc will be displayed for 2 seconds To UNLOCK the desired frequency press and hold both down wv and up a frequency selector buttons for 3 seconds until the transmitter displays Un then Loc on the display The frequency is now unlocked The user is now free to change the frequency on the T27 as needed 6 WILLIAMS SOUND HELPING PEOPLE HEAR P SrEP 5 CONNECT THE AUDIO SOURCE On the back of the T27 an RCA type Audio In jack is available for connecting a line level unbalanced audio source On the front of the T27 a 3 5mm Mic Input jack is available to connect a Williams Sound electret microphone Connect the desired audio source to the T27 transmitter and proceed to Step 6 SrEP 6 ADJUST THE AUDIO LEVEL With the audio source playing use a small screwdriver or tuning wand to rotate the Adjust control on the front of the T27 1 clockwise to increase the audio level or 2 counterclockwise to decrease the audio level Refer to the audio Level indicator LED on the front of the T27 as you make your adjustments Audio Level Indicator LED 1 Never On Audio source is TOO LOW 2 Blinks occassionally Audio source is OPTIMAL 3 Always on Audio source is TOO HIGH Step 7 LISTEN W2. PERSONAL PA TRANSMITTER Moner T27 Dimensions amp Weight Color Power U S Canada Operating Frequencies Frequency Selector RF Field Strength Nominal Range Modulation Stability Pre Emphasis Frequency Response Distortion Signal to Noise Ratio Microphone Input Mic Input Level Line Level Input Line Input Level Input Attenuator Antenna Outputs Approvals Warranty 4 1 Wx61 Lx 13 H 104 1 mm x 154 9 mm x 33 mm 7 8 oz 221 g Black 105 130 VAC 50 60 Hz 3 2 W at 120 VAC 17 Channels 72 100 CH A 72 300 CH B 72 500 CH C 72 700 CH D 72 900 CH E 74 700 CH D 75 300 CH J 75 500 CH F 75 700 CH G 75 900 MHz CH H 722 CHK 724 CH N 72 6 CH 0 72 8 CH P 754 CHR 75 6 CH S 75 8 CH T External switches 17 channels lockable Does not exceed 80mV m 3m Up to 1000 feet 305 m w standard ANT 021 rubber duckie antenna Up to 1000 feet 305 m w optional ANT 005 coaxial antenna FM 75 kHz deviation wide band max 005 over 0 50 C 75 uS 85Hz 14kHz 3dB 1 Max THD 65 dB with PPA R37 Receiver 3 5mm mini phone jack supplies DC for electret mics 1 10 mV nominal RCA Jack Hi Z unbal 0 1 1 Vrms nominal Pot screwdriver adjustable Thread mount for ANT 021 rubber duckie antenna or ANT 025 telescoping antenna RF connector for ANT 024 dipole or ANT 005 coaxial antenna FCC Industrie Canada ROHS WEEE Five years part
3. or right as shown in Figure 6B 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 6B Gently pull the belt clip away from the unit to remove Fie 6A williarnesound corn williamssound com EARPAD CLEANING FOR EARPHONES AND HEADPHONES 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 WILLIAMS SOUND 14 HELPING PEOPLE HEAR UsiNG A RECEIVER WITH A HEARING AID Williams Sound PPA R37 and PPA R35 8 receivers can be used with hearing aids using three different methods NECKLOOP TELECOIL COUPLER Neckloops are cords which hang around the neck and couple mag netically with T Coil equipped hearing aids SILHOUETTE TELECOIL COUPLER These telecoil couplers are worn behind the ear right next to tele coil equipped hearing aids Direct Aupio Input DAI Corp Direct Audio Input cords can be used with compatible hearing aids as well as with Cochlear Implant Processors SUGGESTIONS FOR RECEIVER MANAGEMENT Different types of facilities will use different approaches for receiver management and earphone sanitation Below are some options that customers have used successfully gt Regular users p
4. 19 The exclusions and limitations set out above are not intended to and should not be construed so as to contravene 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 por tions 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 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 Attn Repair Dept 10300 Valley View Rd Eden Prairie MN 55344 USA Your warranty becomes effective the date you purchase your sys tem Your returned warranty card is our way of knowing when your warranty begins Please take a moment to fill it out and mail the enclosed card You may also register your product online www williamssound com registration aspx This information will help us serve you better in the future Thank you WILLIAMS SOUND 20 HELPING PEOPLE HEAR PERSONAL PA VALUE PACK SYSTEM SPECIFICATIONS
5. 6 728 1471 15 4 75 7 and 75 9 MHz FCC Industrie Canada ROHS WEEE Five Years Parts and Labor 90 days on cords earphones headphones batteries and other accessories DISCLAIMER FCC RULES LIMIT USE OF THIS EQUIPMENT TO AUDITORY ASSISTANCE NOTE SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE WILLIAMS SOUND HELPING PEOPLE HEAR 23 WILLIAMS SOUND e HELPING PEOPLE HEAR 10300 Valley View Rd Eden Prairie MN 55344 U S A 800 843 3544 952 943 2252 FAX 952 943 2174 www williamssound com 2011 Williams Sound LLC MAN 159A
6. ITH AN FM RECEIVER IMPORTANT The FM receiver being used with the T27 transmitter will need to be on the same frequency as the transmitter Install the receiver 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 See pages 10 13 for detailed receiver instructions WILLIAMS SOUND 7 HELPING PEOPLE HEAR RECEIVER SArETY INFORMATION HEARING SAFETY N CAUTION The receiver is designed to amplify sounds to a high volume level which could potentially 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 adjusting 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 Ab CAUTION The receiver may be supplied with alkaline batteries Do not attempt to recharge alkaline batteries which may explode release dangerous chemicals cause burns or other serious harm to the user or product 8 WILLIAMS SOUND HELPING PEOPLE HEAR PACEMAKER SAFETY AN Before usin
7. LL THE ANTENNA Gently thread the ANT 021 rubber duckie antenna onto the stud recessed in the hole on the top of the transmitter FCC rules allow only the use of antennas provided by Williams Sound To use a remote antenna supplied by Williams Sound the antenna cap may be removed by turning it counter clockwise with a pli ers or wrench Please call customer service 800 843 3544 if you WILLIAMS SOUND 5 HELPING PEOPLE HEAR have any questions STEP 3 CONNECT THE POWER Locate the TFP 036 power supply cord equipped with the 5 pin DIN connector then plug the connector into the Power In jack located in the back of the T27 Plug the power supply into the AC outlet On power up the number 8 will scroll across the T27 display while the system initializes The system will then display the default system frequency 72 9 MHz or the last selected frequency set by the user SrEP 4 SELECT THE FREQUENCY The T27 has 17 available channels in the 72 76 MHz band By default the T27 frequency is set to 72 9 MHz To change the frequency on the T27 press and release the down v or up A frequency selector button until the desired frequency is displayed After 3 seconds the frequency selection will be set and the audio will begin transmitting on the new frequency NOTE You can LOCK this selection to prevent others from accidently changing the frequency To LOCK the desired frequency press and hold both down e and up a
8. WILLIAMS SOUND e HELPING PEOPLE HEAR MANUAL AND USER GUIDE Personal PA Value Pack System Wide Band FM Wireless Listening System Model PPA VP 37 Transmitter Model PPA T27 Receiver Model PPA R37 Optional Receiver Model PPA R35 8 MAN 159A 2011 Williams Sound LLC PERSONAL PA VaLue Pack System Moner PPA VP 37 INSTALLATION GUIDE amp USER MANUAL CONTENTS System Overview T27 Transmitter Instructions T27 Features and Controls Antenna Connection Power Connection Selecting a Frequency Connecting an Audio Source Adjusting the Audio Source Safety Information Recycling Instructions Receiver Instructions PPA R37 Receiver Use Instructions PPA R35 8 Receiver Use Instructions PPA R37 PPA R35 8 Belt Clip Instructions Using A Receiver With A Hearing Aid Receiver Management Suggestions Battery Information WILLIAMS SOUND 3 HELPING PEOPLE HEAR SYSTEM OVERVIEW Thank you for purchasing the Personal PA Value Pack System from Williams Sound The PPA VP 37 System is a Wideband FM Listening System which operates in the 72 76 MHz frequency band Designed for hearing assistance in places of public access the PPA VP 37 is for those who need help overcoming background noise reverberation or distance from the sound source The versatile PPA VP 37 is easily integrated with your existing sound system or can be used with a microphone as a stand alone system The system has two principal parts the T27 Transmitt
9. acces sories DISCLAIMER FCC RULES LIMIT USE OF THIS EQUIPMENT TO AUDITORY ASSISTANCE NOTE SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE WILLIAMS SOUND HELPING PEOPLE HEAR PERSONAL PA Receiver MopbeL PPA 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 Approvals Warranty 45 Hx285 Wx 1 1 T 1143 mm x 724 mm x 28 mm 46 oz 130 g Black Two 2 AA non rechargeable alkaline batteries BAT 001 up to 50 hrs battery life or Two 2 AA rechargeable NiMH batteries BAT 026 1500 mAh up to 32 hrs battery life Nominal 40 mA 8 channels 72 1 72 3 72 6 72 8 74 7 754 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 mV Integral with earphone headphone cord 35 mW max 16 Q load 3 5 mm mono phone 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 PPA 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
10. an result If recharge capability is desired use only Williams Sound supplied chargers and rechargeable batteries RECOMMENDED BATTERIES For Receiver e BAT 001 AA non rechargeable alkaline batteries BAT 026 AA rechargeable NiMH only BATERY LIFE For PPA R37 and PPA R35 8 receivers 50 hours for BAT 001 AA non rechargeable alkaline batteries 32 hours for BAT 026 AA rechargeable NiMH batteries FURTHER SUGGESTIONS Receivers should NOT be left charging continuously when not in use Receivers should always be turned OFF while charging 1 6 WILLIAMS SOUND HELPING PEOPLE HEAR TROUBLE SHOOTING GUIDE Read through the manual and user guide carefully to verify prop er setup and installation of your system TRANSMITTER FREQUENCY DISPLAY LED NOT LIT p gt Make sure the wall transformer is plugged into the transmitter gt Make sure the electrical outlet is on No SOUND THROUGH RECEIVERS p gt If some of the receivers work but others don t check for bad bat teries or earphones on the receivers that aren t working gt Check to see that the receiver frequency matches the transmitter frequency On the transmitter the frequency is illuminated on the LED panel on the front of the unit On the receiver there may be a sticker on the inside of the battery door of the receiver If these frequencies do not match see Frequency Change Instructions on page 6 transmitter and page 11 or 13 receiver gt If none of th
11. e receivers work check to see if the power is con nected to the transmitter and the frequency display on the front of the transmitter is illuminated gt Check to see if the transmitter is connected properly to the sound system See page 7 p Turn the screwdriver adjust audio input level control on the front panel of the T27 transmitter clockwise to increase the audio level Make sure that the audio light is flashing occasionally but not continuously gt If you are not using an input signal from a sound system make sure the Williams Sound microphone is plugged into the Mic jack on the front of the T27 transmitter gt Make sure the antenna is installed and connected properly See page 5 INSUFFICIENT RANGE GOOD RECEPTION NEAR TRANSMITTER POOR AT A DISTANCE gt Check to see if the antenna was installed correctly If not correct or replace the antenna The signal should be clearly audible at least 100 ft with line of site to transmitter antenna p gt Check to make sure no other transmitters or other devices are transmitting on the same frequency channel WILLIAMS SOUND 17 HELPING PEOPLE HEAR SOUND THROUGH RECEIVERS IS LOUD BUT DISTORTED NOISE ROOM NOISE OR ELECTRONIC NOISE SEEMS TO GROW AFTER TALKING STOPS AUDIO INDICATOR LIGHT IS CONTINUOUSLY ON p gt Turn the screwdriver adjust audio level control on the front of the T27 transmitter counter clockwise to decrease the audio level The audio indicator
12. er and the PPA R37 Receiver Much like a miniature radio station the Transmitter and microphone pick up the sounds you want to hear and broadcast them over an FM radio signal The receivers are used to pick up the broadcast up to 1000 feet 305 m To avoid difficulties please read through these instructions as you begin to use the system Then save the manual for questions that arise as you continue to use your Personal PA Value Pack System If you have any problems with this Williams Sound product please call us toll free at 1 800 843 3544 Fic 1 OVERALL SvsrEM DIAGRAM Microphones Sound System Amplifier Ch HHH H EE PPA Select R37 T27 Transmitter Ce w Earphones A WILLIAMS SOUND HELPING PEOPLE HEAR SETTING Up THE PPA VP 37 PPA T27 Transmitter Instructions 77 gie 2 FEATURES amp CONTROLS Front View VP WILLIAMS SOUND r audio level adjust 1 Mic input jack 3 5 mm 4 Frequency Display LED 2 Audio Level Indicator 5 Frequency Selector 3 Audio Level Control Lock Unlock Control Rear View Power In Williams Sound LLC Antenna Audio 75 Ohms In 6 Power Input jack 12VAC 8 Audio Input jack RCA 7 Antenna Connector type Line Level C 75 Ohms Unbalanced Step 1 SELECT LOCATION Position the PPA T27 transmitter near the audio source i e sound system mixer from which it will receive audio STEP 2 INSTA
13. g the earphone into the Headphone jack on the top of the unit Only monophonic earphones will operate properly If stereo head phones are used sound will be heard only in one side Williams Sound evaluates each earphone and headphone used with the PPA PPA R35 8 receiver we can only assure optimum performance when Williams Sound earphones and headphones are used OPERATING THE RECEIVER Turn the receiver on by rotating the Volume control knob The ON indicator should illuminate RED Refer to the channel selection chart in FIG 5B to choose from 8 standard frequencies Turn the channel selector knob to the desired channel IMPORTANT Fic 5B Make sure the receiver frequen frequency Wideband cy matches the transmitter fre MHz Channel Switch Selection quency Adjust the volume to a 72 1 comfortable listening level To e turn the receiver off rotate the 724 Volume control knob to the left 72 5 until it clicks off The ON indica aT tor should not be lit To prolong 72 8 the battery life of the unit turn the 72 9 receiver off when it is not in use s 75 4 75 5 75 6 75 7 75 8 75 9 r JM O0 mmxc mrmegcoiozumxmn WILLIAMS SOUND 13 HELPING PEOPLE HEAR BELT CLIP INSTALLATION FOR PPA R37 AND PPA R35 8 To INSTALL Position the belt clip on the rear of the PPA R37 or PPA R35 8 receiver as shown in Figure 6A Turn the belt clip 180 left
14. g the receiver with a pacemaker or other medical Eo 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 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 an electron ics recycling center OR return the product to the factory for proper disposal Battery Recycling for Customers in the European Union 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 9 HELPING PEOPLE HEAR PPA R37 RECEIVER INSTRUCTIONS PPA R37 is a 17 channel receiver operating on the 72 76 MHz bandwidth Features seek button channel selection channel lock capability battery saving Sleep Mode on off volume con trol power low battery indicator stereo mono earphone jack Fic 3 On Off Switch UN Volume Control Earphone On Indicator Jack LED PPA R37 Top PERSONAL PA PPA R37 Front de OPERATING THE RECEIVER 1 Insert two 2 AA batteries ensuring co
15. life WILLIAMS SOUND HELPING PEOPLE HEAR 11 RECEIVER MopeL PPA R35 8 OPTIONAL The PPA R35 8 is an eight channel receiver operating on 72 76 MHz bandwidth It features a channel selection knob on off volume control LED power and low battery indicator and an ear phone jack See Figure 5A Fic 5A Headphone Channel Jack Selector Knob On Low Battery On Off Switch Indicator LED Volume Control PPA R35 8 Top PERSONAL PA FM WILLIAMS SOUND PPA R35 8 Front 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 WILLIAMS SOUND 12 HELPING PEOPLE HEAR fabric strip IMPORTANT If Alkaline or non rechargeable bat teries 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 red LED ON indicator on top of the unit will flash to indicate low battery CONNECTING EARPHONES Plu
16. light should flash occasionally but not be lit continuously SOUND THROUGH THE RECEIVERS IS WEAK AND NOISY p gt Turn the screwdriver adjust audio level control located on the T27 front panel clockwise to increase the input signal strength The audio indicator light should flash occasionally gt Increase the input signal level from the sound system BUZZING OR HUMMING NOISE IN SOUND SYSTEM gt There is nothing wrong with the T27 Transmitter One or more pieces of equipment in the sound system are being disturbed by RF Radio Frequency signals produced by the T27 The most likely suspects are your amplifier mixer or tape deck The RF gets into the other equipment primarily through the power cord speaker wires or unshielded inputs all of which can act as antennas Try the following steps gt Move the Transmitter away from the other sound equipment p gt Make sensitive equipment more immune to RFI EMI The manufacturers of your audio equipment may offer applica tion notes for this purpose Williams Sound offers a docu ment giving suggestions for improving RF immunity in existing audio equipment Technical Bulletin Buzz Or Hum In The Sound System FRM 531 Unless you have the neces sary technical skills this is best left to a qualified electronics repair technician 1 8 WILLIAMS SOUND HELPING PEOPLE HEAR LIMITED WARRANTY Williams Sound products are engineered designed and manufactured under carefully c
17. ontrolled conditions to provide you with many years of reliable service Williams Sound warrants the Personal PA Value Pack System against defects in materials and workmanship for five 5 years During the first five years from the purchase date we will promptly repair or replace the Personal PA Value Pack System Microphones earphones headphones batteries cables carry cases and all other accessory products carry a 90 day warranty Chargers carry a 1 year warranty WILLIAMS SOUND HAS NO CONTROL OVER THE CONDI TIONS UNDER WHICH THIS PRODUCT IS USED WILLIAMS SOUND THEREFORE DISCLAIMS ALL WARRANTIES NOT SET FORTH ABOVE BOTH EXPRESS AND IMPLIED WITH RESPECT TO THE PERSONAL PA VALUE PACK SYSTEM INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRAN TY OF MERCHANTABILITY OR FITNESS FOR A PARTICU LAR PURPOSE WILLIAMS SOUND SHALL NOT BE LIABLE TO ANY PERSON OR ENTITY FOR ANY MEDICAL EXPENSES OR ANY DIRECT INCIDENTAL OR CONSEQUENTIAL DAM AGES 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 FAILURE OR MALFUNCTION OF THE PRODUCT IS REPLACEMENT OF THE PRODUCT NO PERSON HAS ANY AUTHORITY TO BIND WILLIAMS SOUND TO ANY REPRE SENTATION OR WARRANTY WITH RESPECT TO THE PERSONAL PA VALUE PACK SYSTEM UNAUTHORIZED REPAIRS OR MODIFICATIONS WILL VOID THE WARRANTY WILLIAMS SOUND HELPING PEOPLE HEAR
18. rrect polarity If rechargeable NiMH batteries are to be used with the receiver and a Williams Sound charger make sure the Alkaline NiMH 1 0 WILLIAMS SOUND HELPING PEOPLE HEAR switch inside the battery compartment is set to NiMH before charging See FIG 4 2 Insert headphone earphone or neck loop into the stereo output jack 3 Turn receiver on by turning up the volume control The green power LED will turn on 4 Press the Channel Seek but ton inside the battery compart ment once to seek an active transmitter See FIG 4 If more than one transmitter is being used you will need to push the seek button additional times until you locate the signal you want to hear The receiver will retain the channel setting when the unit is turned off 5 To lock or unlock a selected channel turn the power off While holding the seek button turn the power back on When locked the receiver will remain on the current channel regardless of channel seek button presses LED FLASH CODES ight Code ndicates Description annel locked eek press remains on current channel blinks annel unlocked eek press tunes to next channel present blinks annel unlocked no Seek press atempts to other channels present find another channel On Off On O Batteries are low Batteries need to be continuous replaced or recharged Fade on Fade o No transmitter present Sleep Power Save mode continuous on current channel extends battery
19. s and labor 90 days on cords earphones headphones batteries and other accessories DISCLAIMER FCC RULES LIMIT USE OF THIS EQUIPMENT TO AUDITORY ASSISTANCE NOTE SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE WILLIAMS SOUND HELPING PEOPLE HEAR 21 22 PPA SELECT Receiver Moner PPA R37 Dimensions Weight Color Battery Type Current Consumption Operating Freq FM Deviation De emphasis LED Indicator Sensitivity Input Overload Frequency Response Signal to Noise Ratio Receiver Antenna Audio Output Output Connector Approvals Warranty 4 1 H x 2 85 W x 1 1 T 104 mm x 72 mm x 28 mm 4 6 oz 130 g with batteries 2 6 oz w o batteries 73g Black Two 2 AA non rechargeable alkaline batteries BAT 001 up to 50 hours battery life or Two 2 AA rechargeable NiMH batteries BAT 026 1500 mAh up to 32 hours battery life Nominal 52 mA 17 channels 72 1 72 2 72 3 724 72 5 72 6 72 7 72 8 72 9 74 7 75 3 75 4 75 5 75 6 75 7 75 8 or 75 9 MHz 75 kHz 75 uS Power on Bright Green Low Battery Flashes 2 uV at 12 dB SINAD with squelch defeated 100 mV 200 Hz to 15 kHz 3 dB 65 dB at 100 nV Integral with earphone headphone cord 35 mW max 16 ohm load 3 5 mm stereo phone jack accepts either stereo or mono plug FCC Industrie Canada ROHS WEEE Five Years Parts and Labor 90 days on cords earphones headphones batteries and other
20. urchase their own receiver and take care of their own batteries and earphone gt Some facilities label the receiver and earphone with the names of regular users so each person uses the same receiver and earphone 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 gt Regular users purchase their own earphone or headphone and bring them to use with receivers at the facility WILLIAMS SOUND 1 5 HELPING PEOPLE HEAR RECEIVER BATTERY INFORMATION SINGLE Ust BATTERIES For the PPA R37 and R35 8 the power LED will blink when the battery is low With other receivers if the sound becomes weak or distorted the battery is low Replace the battery The indicator light may still be on even with a battery that is weak Do not leave dead batteries in the receivers Battery corrosion is not covered by the Williams Sound five year warranty II WARNING DO NOT ATTEMPT TO RECHARGE SINGLE USE BATTERIES The batteries may heat up and burst causing possible injury and damage to the equipment Avoid shorting the plus and minus battery terminals together with metal objects Battery damage and burns c
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