WILLIAMS SOUND PPA VP 37 Wide-Band FM Wireless Listening System User Guide

WILLIAMS SOUND PPA VP 37 Wide-Band FM Wireless Listening System

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 Transmitter 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.

Figure 1: Overall System Diagram

Setting Up the PPA VP 37

Figure 2: PPA T27 Features and Controls

1. Select Location. Position the PPA T27 transmitter near the audio source (i.e. sound system, mixer) from which it will receive audio.

2. Install 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 pliers or wrench. Please call customer service 800.843.3544 if you have any questions.

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.

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 “ ” or up “ ” 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 “ ” and up “ ” 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 “ ” and up “ ” 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

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 3.5 mm “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.

6. Adjusting the Audio Source. 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
   Never On = Audio source is TOO LOW.
   Blinks occasionally = Audio source is OPTIMAL.
   Always on = Audio source is TOO HIGH.

7. Listen with 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.

Receiver Safety Information

HEARING SAFETY:

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.
2. Set the volume level at the minimum setting that you need to hear.
3. If you experience feedback (a squealing or howling sound), reduce the volume setting and move the microphone away from the earphone or headphone.
4. Do not allow children or other unauthorized persons to have access to this product.

BATTERY SAFETY AND DISPOSAL:

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.

PACEMAKER SAFETY:

CAUTION!

1. Before using the receiver with a pacemaker or other medical device, consult your physician or the manufacturer of your pacemaker or other medical device.
2. 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
Please do NOT dispose of your Williams Sound equipment in the household trash. Please take the equipment to an electronics recycling center; OR, return the product to the factory for proper disposal.

Battery Recycling
Please do NOT dispose of used batteries in the household trash. Please take the batteries to a retail or community collection point for recycling.

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, batterysaving sleep mode, on/off volume control, power/low battery indicator, stereo/mono earphone jack.

Figure 3: PPA R37 Controls

Operating the Receiver

1. Insert two (2) AA batteries ensuring correct polarity. If rechargeable NiMH batteries are to be used, make sure the Alkaline/NiMH switch inside the battery compartment is set to NiMH before charging. See Figure 4.

2. Insert headphone, earphone or neckloop into the stereo output jack.

3. Turn receiver on by turning up the volume control. The green power LED will blink and then stay on continuously.

4. Set receiver frequency to match transmitter frequency. Press the Channel Seek button inside the battery compartment once to seek an active transmitter. See Figure 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.
   Figure 4: Battery and Channel Selections
   
   

5. To lock or unlock a selected channel, turn the power off. WhiAle117holding 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

find another channel
On-Off- On-Off… (continuous)| Batteries are low| Batteries need to be replaced or recharged
Fade-on, Fade-off… (continuous)| No transmitter present on current channel| Sleep/Power Save mode (extends battery life)

Receiver Model 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 earphone jack (See Figure 5).

Figure 5: PPA R35-8 Controls

Battery Installation

Install two (2) AA alkaline or NiMH rechargeable battAe1r1i8es. 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 (or 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 red LED “ON” indicator on top of the unit will flash to indicate low battery.

Connecting Earphones

Plug the earphone into the “Headphone” 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 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 Figure 6 to choose from 8 standard frequencies. Turn the channel selector knob to the desired channel.

IMPORTANT: Make sure the receiver frequency matches the transmitter frequency!

Adjust the volume to a comfortable 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 prolong the battery life of the unit, turn the receiver off when it is not in use.

Figure 6: Channel Selection Chart

Freq. (MHz)

|

Channel

|

R35-8 CH

---|---|---

72.1

| A|

1

72.2

| K|
72.3| B|

2

72.4

| N|
72.5| C|

72.6

| O| 3
72.7| D|

72.8

| P| 4
72.9| E|

74.7

| I| 5
75.3| J|

75.4

| R| 6
75.5| F|

75.6

| S|
75.7| G|

7

75.8

| T|
75.9| H|

8

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 6. Turn the belt clip 180º left or right as shown in Figure 6. The belt clip is now installed and ready for use.

To Remove:
Turn the belt clip 180º so the edge points toward the top of the unit as shown in Figure 6. Gently pull the belt clip away from the unit to remove.

Figure 6: Belt Clip Installation and Removal

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

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 magnetically with T-Coil equipped hearing aids.

Silhouette Telecoil Coupler
These telecoil couplers are worn behind the ear, right next to telecoilequipped hearing aids.

Direct Audio Input (DAI) Cord
Direct Audio Input cords can be used with compatible hearing aids as well as with Cochlear Implant Processors.

Receiver Management Suggestions

Different types of facilities will use different approaches for receiver management and earphone sanitation. Below are some options that customers have used successfully.

• Regular users purchase their own receiver and take care of their own batteries and earphone.
• 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.
• Regular users purchase their own earphone or headphone and bring them to use with receivers at the facility.

Receiver Battery Information

Single Use 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.

Recommended Batteries

For Receiver:

· BAT 001 AA non-rechargeable alkaline batteries · BAT 026 AA rechargeable NiMH only

Battery 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.

!! IMPORTANT WARNINGS !!
DO NOT ATTEMPT TO RECHARGE ZINC CARBON (“HEAVY DUTY”), ALKALINE, OR LITHIUM BATTERIES!
DO NOT ATTEMPT TO RECHARGE SINGLE-USE 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!

Troubleshooting Guide

Read through the manual and user guide carefully to verify proper setup and installation of your system.

Transmitter frequency display (LED) not lit.

• Make sure the wall transformer is plugged into the transmitter.
• Make sure the electrical outlet is on.

No sound through receivers.

• If some of the receivers work, but others don’t, check for bad batteries or earphones on the receivers that aren’t working.
• 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 Select the Frequency Instructions on page 6 (transmitter) and page 11 for the R37 or page 13 for the R35-8.
• If none of the receivers work, check to see if the power is connected to the transmitter and the frequency display on the front of the transmitter is illuminated.
• Check to see if the transmitter is connected properly to the sound system. See page 6 – 7.
• 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.
• 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.
• Make sure the antenna is installed and connected properly. See page 5.

Insufficient range, good reception near transmitter, poor at a distance

• 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.
• Check to make sure no other transmitters (or other devices) are transmitting on the same frequency (channel).

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.

• Turn the screwdriver-adjust audio level control on the front of the T27 transmitter counter-clockwise to decrease the audio level. The audio indicator light should flash occasionally, but not be lit continuously.

Sound through the receivers is weak and noisy.

• 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.
• Increase the input signal level from the sound system.

Buzzing or humming noise in sound system.

• 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:
• Move the Transmitter away from the other sound equipment.
• 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) Unless you have the necessary technical skills, this is best left to a qualified electronics repair technician.

Personal PA Value Pack System Specifications

PERSONAL PA Transmitter Model T27

Dimensions & Weight:| 4.1” W x 6.1” L x 1.3” H (104.1 mm x 154.9 mm x 33 mm)
7.8 oz. (221 g)
---|---
Color:| Black
Power (U.S./Canada):| PPA T27: 12VAC, 300mA, 3.2W
Power Supply: Wall Mount Class 2 transformer
Input: 105-130 VAC, 50-60 Hz; Output: 12VAC, 800mA, 5-pin DIN
Operating Frequencies:| 72-76 MHz*: 72.1 (CH A), 72.2 (CH K), 72.3 (CH B), 72.4 (CH N), 72.5 (CH C), 72.6 (CH O), 72.7 (CH D), 72.8 (CH P), 72.9 (CH E), 74.7 (CH I), 75.3 (CH J), 75.4 (CH R), 75.5 (CH F), 75.6 (CH S), 75.7 (CH G), 75.8 (CH T), 75.9 (CH H)
Frequency Selector:| External switches, 17 channels (lockable)
RF Field Strength:| Does not exceed 80mV/m @ 3m
Nominal Range:| Up to 500 feet (152 m) w/standard ANT 021 “rubber duckie” antenna. Up to 1000 feet (305 m) w/optional ANT 005 coaxial antenna.
Modulation:| FM, 75 kHz deviation (wide–band) max.
Stability:| ± .005% over 0-50˚C
Pre-Emphasis:| 75 µS
Frequency Response:| 85Hz – 14kHz ±3dB
Distortion:| 1% Max. THD
Signal to Noise Ratio:| 65 dB with PPA R37 Receiver
Microphone Input:| 3.5mm mini phone jack, supplies +DC for electret mics
Mic Input Level:| 1–10 mV, nominal
Line-Level Input:| RCA Jack, Hi Z, unbal.
Line Input Level:| .1–1 Vrms, nominal
Input Attenuator:| Pot, screwdriver-adjustable
Antenna Outputs:| Thread mount for ANT 021 “rubber duckie” antenna or ANT 025 telescoping antenna RF connector for ANT 024 dipole or ANT 005 coaxial antenna
Approvals:| FCC, Industry Canada, RoHS, WEEE
Warranty:| Lifetime PLUS Limited Warranty, 90 Days on most accessories.

*DISCLAIMER: FCC RULES LIMIT USE OF THIS EQUIPMENT TO AUDITORY ASSISTANCE.
NOTE: SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE.

PPA SelectTM Receiver (Model PPA R37)

approx. 50 hours battery life; or
Two (2) AA rechargeable NiMH batteries (BAT 026), 1500 mAh, approx 32 hours battery life
Current Consumption:| Nominal 52 mA
Operating Freq.:| 17 channels: 72.1, 72.2, 72.3, 72.4, 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*.
FM Deviation:| +75 kHz
De-Emphasis:| 75 µS
LED Indicator:| Power on: Bright Green. Low Battery: Flashes.
Sensitivity:| 2 µV at 12 dB Sinad with squelch defeated
Input Overload:| 100 mV
Frequency Response:| 200Hz to 15 kHz, ± 3 dB
Signal-to-Noise Ratio:| 65 dB at 100 µV
Receive Antenna:| Integral with earphone/headphone cord
Audio Output:| 35 mW, 16 ohm loadΩ
Output Connector:| 3.5 mm stereo phone jack, accepts either stereo or mono plug
Approvals:| FCC, Industry Canada, RoHS, WEEE
Warranty:| Lifetime PLUS Limited Warranty. 90 days on cords, earphones, headphones, batteries and most other accessories

DISCLAIMER: FCC RULES LIMIT USE OF THIS EQUIPMENT TO AUDITORY ASSISTANCE.
NOTE: SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE.

Personal PA Receiver (Model PPA R35-8)

approx. 50 hours battery life or Two (2) AA rechargeable NiMH batteries (BAT 026), 1400 mAh, approx 32 hours battery life
Current Consumption:| Nominal 40 mA
Operating Freq:| 72-76 MHz*:
8 channels: 72.1, 72.3, 72.6, 72.8, 74.7, 75.4, 75.7, or 75.9 MHz. All Channels Not Available on the PPA T20 Transmitter
Intermediate Freq:| 10.7 MHz
FM Deviation:| +/- 75 kHz
De-emphasis:| 75 uS
LED Indicator:| Power: Red. Low Battery: Flashes
Sensitivity:| 2 uV at 12 dB SINAD with squelch defeated
Input Overload:| 20 mV
Frequency Response:| 40 Hz to 15 kHz +/- 3 dB
Signal to Noise ratio:| 60 dB at 100 uV
Receive Antenna:| Integral with earphone/headphone cord
Audio Output:| 35 mW, max 16 ohm load
Output Connector:| 3.5 mm mono phone jack
Squelch:| 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
Notes:| The R35-8 is NOT field tunable. The eight channels have been carefully selected to inhibit inter-modulation interference.
Approvals:| FCC, Industry Canada, RoHS, WEEE
Warranty:| Lifetime PLUS Limited Warranty. 90 days on cords, earphones, headphones, batteries, and most other accessories

Lifetime PLUS Limited Warranty

Williams Sound products are engineered, designed, and manufactured under carefully controlled conditions to provide you with many years of reliable service. Effective January 1, 2012, Williams Sound warrants the Personal PA® FM Listening transmitters and receivers (models PPA T35, PPA T27, PPA T36, PPA R37, and PPA R35-8) against defects in materials and workmanship under normal use and conditions for the useful lifetime of the product from date of purchase.

This warranty is available to the original end purchaser of the product and CAN BE transferred to subsequent purchasers of the product.

Microphones, earphones, headphones, batteries, chargers, cables, carry cases, and most other accessory products carry a 90-day warranty.

Williams Sound has no control over the conditions 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® FM Listening System, including but not limited to, any implied warranty of merchantability or fitness of use of such equipment including, without limitation, any warranty that the use of such equipment for any purpose will comply with applicable laws and regulations. Williams Sound shall not be liable to any person or entity for any medical expenses or any direct, incidental or consequential damages caused by any use, defect, failure or malfunctioning 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 products 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® FM Listening System. Unauthorized repairs or modifications will void the warranty. This warranty is void if damage occurred because of misuse, or if the product has been repaired or modified by anyone other than a factory authorized service technician. Warranty does not cover normal wear and tear on the product or any other physical damage unless the damage was the result of a manufacturing defect. Williams Sound is not liable for consequential damages due to any failure of equipment to perform as intended. Williams Sound shall bear no responsibility or obligation with respect to the manner of use of any equipment sold by it.

This warranty does not cover reimbursement for your costs of removing and transporting the product for warranty service evaluation or installation of any replacement product provided under this warranty.

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 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. The terms of the warranty are governed by the laws of the State of Minnesota.

Prices and the specifications of the products are subject to change without notice.
*For Complete Warranty Statement go to: www.williamssound.com/warranty-statement

Repair Services

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 system. 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:

http://www.williamssound.com/Warranty-registration

This information will help us serve you better in the future. Thank you!

10300 Valley View Rd · Eden Prairie, MN 55344
800-328-6190 / 952-943-2252 · FAX: 952-943-2174
www.williamssound.com
©2013 Williams Sound · All Rights Reserved

References

• Personal Hearing Products - Williams AV
• Warranty & Product Registration - Williams AV

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