Williams Sound Laptop TGS PRO 720 User Manual

®
MANUAL AND USER GUIDE  
HEARING HELPER Tour Guide System  
Wireless, Portable FM Listening System  
Model TGS PRO 720  
Transmitter Model PFM T31  
Receiver Model PPA R35  
MAN 122A  
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SYSTEM OVERVIEW  
The HEARING HELPERTour Guide System is a portable, high-performance, wireless system  
composed of the PFM T31 Transmitter and PPA R35 Receivers and designed for use in guided tour  
applications. The system allows one-way transmission of a tour guide’s voice to group members  
using an FM radio signal. Using the system helps group members overcome background noise and  
distance from the person speaking.  
The HEARING HELPERSystem can be used for large or small tour groups and in noisy or quiet  
environments.  
Your HEARING HELPERTour Guide System has two principal parts: the transmitter and the  
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 and headphones are used to  
pick up the broadcast up to 100 meters away.  
To avoid difficulties, please read through these instructions as you begin to use the system. Then save  
them for questions that arise as you continue to use your system.  
FIGURE 1: HOW THE TOUR GUIDE SYSTEM WORKS  
FM Radio Signal  
Tour Guide Uses the Body Pack  
Transmitter With Microphone  
Listeners use Personal Receivers with  
Headphones, Earphones, Or Neckloop  
The tour guide wears the body-pack transmitter and headset microphone. The guide’s  
voice is broadcast as an FM radio signal over a distance of up to 100 meters. Listeners use  
the pocket receiver and headphone to hear the speaker’s voice directly, with reduced  
background noise. A neckloop telecoil coupler allows the system to be used with telecoil  
(T-Switch) equipped hearing aids, at somewhat reduced range.  
If you have problems with the HEARING HELPERTour Guide System, don’t hesitate to call  
Williams Sound at 1-800-328-6190.  
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SYSTEM COMPONENTS  
þ
þ
þ
þ
þ
Body Pack Transmitter (PFM T31) with (2) AA batteries (BAT 001)  
Noise-cancelling headband microphone (MIC 086)  
(6) Receivers (PPA R35) w/batteries (BAT 001)  
Instruction Manual (MAN 122)  
System carry case (CCS 030 S)  
THE PFM T31 TRANSMITTER  
The PFM T31 Transmitter is a battery-powered body-pack model used with a microphone to pick up  
the tour guide's voice. The transmitter produces an FM radio signal to broadcast the tour guide's  
voice to the receiver units. A simple slide switch on top of the transmitter turns the unit on or off.  
The PPA T31 operates on two AA non-rechargeable alkaline batteries (BAT 001), or two AA  
rechargeable NiMH batteries (BAT 026).  
MICROPHONES  
A noise-cancelling, headband microphone (MIC 086) is the standard microphone. The noise-  
cancelling microphone helps to reduce background sounds in noisy environments. The microphone  
plugs into the “MIC” jack on top of the Transmitter. The microphone should be positioned directly  
in front of the tour guide's mouth to achieve an optimal signal to noise ratio and so that head  
movement does not affect the loudness of the signal. The microphone cord acts as the transmitting  
antenna.  
Optional Microphones  
An optional Hearing Protector Headset Microphone (MIC 036) is also available for extremely high  
noise environments. It features ear muffs that completely cover both ears and provides 24 dB noise  
isolation for hearing protection.  
An optional Lapel Clip Microphone can be used in quieter environments like museums or galleries.  
The MIC 090 has an omnidirectional pick-up pattern. The MIC 056 has a directional (or cardioid)  
pick-up pattern, which will reduce background noise somewhat.  
A directional hand-held microphone (MIC 027) is also available for tour guides who prefer to hold  
the microphone.  
THE PPA R35 RECEIVER  
The PPA R35 Receiver is a battery-powered body-pack receiver used with a headphone to hear the  
signal produced by the transmitter. The receiver is pre-tuned to the transmitter and has a user-  
adjustable volume on/off control, LED power and low battery indicator. The headphone plugs into  
the “EAR” jack on top of the Receiver. The PPA R35 Receiver operates on two AA non-  
rechargeable alkaline batteries (BAT 001), or two AA rechargeable NiMH batteries (BAT 026).  
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OPTIONAL HEADPHONES AND EARPHONES  
The optional HED 021 Lightweight Headphone is the standard headset for the Tour Guide System.  
It offers excellent sound quality and wearing comfort. The foam earpads may be removed and  
washed in a mild detergent, rinsed thoroughly, and air dried.  
The headphone plugs into the “EAR” jack on top of the Receiver. The headphones are wired with a  
mono plug. If a stereo headphone is substituted, it will only work on one side of the headphone.  
The HED 008 is a heavy-duty, hearing-protector headset. The HED 008 earmuffs completely cover  
the ears and provide 24 dB noise isolation for hearing protection in high noise environments.  
The EAR 022 Surround Earphone offers excellent sound quality in a unique style that hangs on the  
ear. It is easy to keep clean since the earphone does not enter the ear. It is not recommended for high  
noise environments.  
The EAR 013 and EAR 014 are single and dual Mini Earphones. The earbud-style features a foam  
covering that fits in the outer ear. The foam pads can be removed for cleaning or replacement.  
Replacement pads (EAR 015-10) are available.  
The stylish HED 026 rear-wear headphone offers excellent sound quality; it rests comfortably over  
the ears and wraps around the back of the head for a less obtrusive, relaxed fit.  
For order information, contact Williams Sound at 1-800-843-3544.  
FIG. 2: EARPHONE / HEADPHONE OPTIONS  
HED 008  
HED 021  
HED 026  
EAR 022  
EAR 013  
EAR 014  
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SAFETY INFORMATION  
HEARING SAFETY  
CAUTION!  
This product 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.  
Then adjust 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 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.  
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  
BATTERY SAFETY AND DISPOSAL  
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:  
Please do NOT dispose of used batteries in the household trash. Please take the  
batteries to a retail or community collection point for recycling.  
3/28/06  
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OPERATING INSTRUCTIONS  
USING THE PFM T31 TRANSMITTER  
Note: Before you begin, make sure you have AA Alkaline batteries installed in the transmitter. See  
Battery Information on page 14.  
1. Plug the microphone into the “mic” jack on top of the transmitter.  
2. Turn the power on: Place the FM switch to the “On” position.  
3. Position the microphone as close to the speaker’s mouth as practical.  
4. When you are ready to speak, turn the Mic Mute Switch to the “On” position. When you are done  
speaking, mute the mic by turning the switch to the “Off” position. This will eliminate any  
unwanted noise as a result of the transmitter being on.  
5. Remember to turn the transmitter off when you are done using it: Turn the “FM” switch to the  
“Off” position.  
FIG. 3: PFM T31 TRANSMITTER TOP VIEW  
On/Off Switch  
Mic  
Off  
FM  
On  
Mic  
Williams Sound FM  
Mic Jack  
Mic Mute Switch  
Note On The Transmitter Antenna:  
The microphone cord is the transmitting antenna. Do not bunch up the cord, wrap it tightly around your  
body, or wrap it around the transmitter. For maximum range, the cord should hang as straight as  
possible. The transmitter can be placed in a pants pocket, or clipped onto a belt or waistband. Make  
sure the transmitter is turned OFF when not in use.  
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CHANGING THE PFM T31 FREQUENCY  
FIG. 4: PFM T31 FREQUENCY CHANGE  
Frequency Switches  
Switch Settings  
MHz  
1
2
3
4
5
6
7
8
72.1 DN UP DN UP DN DN DN DN  
72.3 DN UP DN UP UP DN DN DN  
72.5 DN UP DN UP DN DN UP DN  
72.6 DN DN UP DN DN DN DN UP  
72.7 DN UP DN UP UP DN UP DN  
72.8 DN UP DN DN DN DN DN UP  
72.9 DN UP DN UP DN DN DN UP  
74.7 UP DN DN UP UP DN DN UP  
75.3 UP UP DN UP DN DN DN DN  
75.4 UP UP DN DN UP DN DN DN  
75.5 UP UP DN UP UP DN DN DN  
75.7 UP UP DN UP DN DN UP DN  
75.9 UP UP DN UP UP DN UP DN  
1
2
3
4
5
6
7
8
Battery  
Compartment  
Begin by opening the battery compartment door. Remove the batteries, then open the back panel to  
expose the circuit board. Referencing the Switch Settings chart (above), adjust the frequency  
switches on the PFM T31 transmitter accordingly using a small screw driver or paper clip.  
Reinstall the batteries, then close the back of the transmitter. Plug in the mic, and turn on the  
transmitter to provide a tuning signal for the receivers. Be sure to change the receiver to the  
corresponding channel.  
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USING THE PPA R35 RECEIVER  
Note: Rechargeable batteries are shipped in a discharged state and must be charged overnight  
before using.  
1. Make sure there are two charged AA batteries in the Receiver. If batteries are not installed, see  
Battery Information on page 14.  
NOTE: The ON indicator will illuminate RED to indicate low battery.  
2. Plug the earphone or headphone into the “Ear” jack on top of the Receiver.  
On/Off  
Volume Switch  
FIG. 5: PPA R35 RECEIVER TOP VIEW  
Earphone  
Jack  
"On" Indicator  
LED  
3. Place the headphones over your ears.  
4. Turn the receiver on by rotating the volume control knob clockwise. The receiver’s ON  
indicator should illuminate green.  
5. Adjust the receiver volume control to a comfortable listening level.  
You should be able to hear someone speaking into the transmitter microphone.  
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BELT CLIP INSTALLATION FOR PPA R35  
TO INSTALL:  
Position the belt clip on the rear of the R-35 receiver as shown in Figure 6a. Turn the belt clip 180º left  
or right as shown in Figure 6b. 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 6b. Gently pull  
the belt clip away from the unit to remove.  
FIGURE 6B  
FIGURE 6A  
– or –  
EARPAD CLEANING FOR PPA R35  
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  
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R35 RECEIVER FREQUENCY CHANGE INSTRUCTIONS  
Selecting a frequency for the R35 receiver requires an adjustment to the internal tuning  
coil. See figure below to locate the coil to be adjusted. A plastic tuning wrench (PLT 005)  
will be needed to adjust this receiver’s tuning coil.  
FIGURE 7: LOCATING THE TUNING COIL IN THE RECEIVER  
TUNING COIL  
Ferrite Tuning  
"Slug"  
Alkaline  
NiMH  
Channel Tuning  
R-35  
Most Williams Sound 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 on the back of the receiver.  
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STEP 5:  
Locate the Tuning Coil (see figure 7). The tuning coil is a small. shiny  
metal can with a screwdriver slot in a tuning slug in the top center. The Tuning Slug is  
usually black or gray.  
STEP 6: With the earphone or headphone supplied with the receiver plugged into the Ear Jack,  
turn the volume control to a comfortable level, and listen for the transmitted signal.  
STEP 7: Gently put the tip of the tuning wrench into the slot in the tuning slug. Be careful not to  
push hard on the slug so as not to damage the threads in the coil, and do not screw it  
down more than 3 turns into the coil.  
STEP 8: Turn the tuning slug in a counterclockwise direction about two turns. Then, slowly turn  
the tuning slug in the clockwise direction until the signal is heard. There may be two  
signal points heard. The one which is received first is a false response. Be sure to  
continue tuning slightly further to the correct point, which will be much louder. Tune  
back and forth to find the center of the point of best response to the program being  
heard.  
STEP 9: Mark down the date, and if a new frequency has been chosen, mark it down inside the  
receiver case for future reference.  
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HINTS FOR USING THE SYSTEM  
Normal operating distance between the transmitter and receiver is about 30 meters. The operating  
range will vary in different buildings and surroundings. In some locations, the signal may  
momentarily disappear. This is called a “drop-out” and is due to reflection and cancellation of the  
radio signal. Moving a few feet will restore the signal.  
Keep the transmitter and receiver units at least a meter apart. If the transmitter gets too close to a  
receiver, it can overload the receiver, causing noisy reception or blocking of the signal.  
Do not use more than one transmitter on the same channel (frequency) at the same time unless they  
are physically separated by more than 30 meters. Operating more than one transmitter on the same  
channel at the same time in the same place will result in interference.  
FIGURE 8: TOUR GUIDE GROUP SEPARATION  
Tour Group 1  
Channel A  
Tour Group 2  
Channel A  
30 Meters  
USING MULTIPLE SYSTEMS FOR MULTIPLE GROUPS:  
For multiple tour groups within the same facility, multiple Tour Guide Systems may be operated  
on the same channel at the same time by maintaining physical separation of 30 meters between  
groups. The physical separation of groups takes advantage of the FM capture effect which causes  
receivers to lock onto the closest transmitter.  
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BATTERY INFORMATION  
INSTALLATION  
To open the T31 transmitter battery compartment, use a coin in the slot on the bottom of the  
transmitter. To open the R35 receiver battery compartment, lift the tab on the back of the receiver  
with a finger. Press the batteries into place, observing proper battery polarity. Incorrect insertion of  
FIGURE 9: BATTERY INSTALLATION  
Rear of Transmitter  
or Receiver  
+
Battery  
Compartment  
+
Tab  
Note Proper  
Polarity  
the battery is difficult, and if forced, may cause both mechanical and electrical damage to  
transmitters or receivers not covered by the five year warranty. Units will not work with the battery  
incorrectly installed.  
NON-RECHARGEABLE BATTERIES  
In normal use, two AA 1.5 V alkaline batteries (BAT 001) will last about 12 hours in the  
PFM T31 Transmitter and approximately 100 hours in the PPA R35 Receiver. If the sound becomes  
weak or distorted, replace the batteries. Do not leave dead batteries in the receivers. Battery  
corrosion is not covered by the Williams Sound five year warranty.  
RECHARGEABLE BATTERIES  
The PFM T31 Transmitter and PPA R35 Receivers can use rechargeable AA batteries  
(BAT 026). On an overnight charge, these NiMH batteries are designed to operate a PFM T31  
Transmitter for approximately 10 hours, and PPA R35 Receivers for 56 hours.  
!! 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!  
The battery installed in the receiver may be recharged in the receiver only if it is a NiMH battery,  
and only if a Williams Sound CHG 3512 Multi-Charger is used. Damage from improper charging is  
not covered by the Williams Sound five year warranty.  
Important Rechargeable Battery Information  
Rechargeable batteries are shipped in a discharged condition. They must be charged for a complete  
charge cycle before the first use (approximately 4 hours). Rechargeable batteries will need to be  
replaced after 1-2 years of use. Do not dispose of batteries in fire. Do not open batteries - toxic  
chemicals inside.  
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FIGURE 10: USING THE OPTIONAL CHG 200A BATTERY CHARGER TO CHARGE THE PFM T31 TRANSMITTER  
Step 1: Plug the CHG 200’s power supply into  
the Power Input on the charger’s side and  
a standard AC wall outlet.  
Step 2: Route the power cord around the Cord  
Hook (see figure at right). This will  
minimize strain on the cord and jack and  
Charging  
insure that the power cord is not detached  
Contact Holes  
during charging.  
Step 3: Make sure the transmitters to be charged  
are turned OFF.  
Charging  
Indicators  
Step 4: Place the transmitters in the slots so that  
the CHG 200’s Charging Pins and  
Charging  
receiver’s side panel contacts are  
Pins  
coupled. Make sure that the charging  
contact holes line up with the charging  
pins. The transmitters should drop easily  
into the slots. DO NOT FORCE THEM  
IN BACKWARDS.  
Step 5: The Charging Indicators will light,  
indicating that charging is in process.  
It takes 14–16 hours to fully charge the  
batteries. Remove the transmitters when  
charging is completed.  
Cord Hook  
Power Input  
FURTHER SUGGESTIONS  
Receivers should always be turned OFF while charging.  
It’s best to allow the batteries to fully discharge before charging.  
If the batteries are near end of life and the LED turns off while the receiver is operating, this is an  
indication to change or recharge your batteries. Approximately one hour of battery life remains.  
Rechargeable batteries will need to be replaced after 1–2 years of use.  
!! WARNING !!  
DO NOT ATTEMPT TO RECHARGE DISPOSABLE 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 can result!  
Use only Williams Sound supplied chargers and batteries.  
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USING THE OPTIONAL CHG 3512 BATTERY CHARGER TO CHARGE THE PPA R35 RECEIVER  
With power connected, the CHG 3512 Multiple Charger has the ability to read the condition of the  
receiver batteries determining whether to initiate full charge or trickle charge to maintain the  
batteries’ full potential. Each bay on the charger has a red LED indicating charging status, which  
will be on constantly during charging and will blink indicating when batteries are fully charged.  
Charging Instructions  
Before inserting the PPA R35 receivers into the charger, be sure that each receiver has NiMH  
batteries installed. Also, check to make sure the switch setting in the PPA R35 battery  
compartment indicates the “NiMH” setting.  
Step 1: Plug the TFP 035 power supply into the AC wall outlet. Plug the power connector into  
the rear of the CHG 3512 unit (See Figure 11a).  
Step 2: Insert the PPA R35 receivers into the charging slots. The receivers must be placed in the  
charger facing forward to make contact with charger contacts (See Figure 11b). A red  
LED indicator will illuminate when charging has started. The red LED will blink when  
the receiver batteries are fully charged (indicates the charger is in trickle mode). You may  
charge up to 12 receiver units per CHG 3512 charger. It will take approximately 4 hours  
to fully charge the batteries.  
Note: It is safe to leave the receivers in the charger, even after the batteries are fully  
charged. The charger will switch to trickle charge to mantain full battery potential.  
FIGURE 11A:  
FIGURE 11B:  
CHG 3512  
Front-Top View  
CHG 3512  
Rear View  
C
H
G
W
AR  
NI  
NG  
:
DO  
NO  
T
AT  
TE  
M
PT  
TO  
RE  
CH  
AR  
GE  
DI  
SP  
OS  
AB  
LE  
BA  
TT  
ER  
IE  
S!  
C
H
G
Williams Sound  
il  
li  
a
m
s
S
o
u
n
d
PPA R35 Receiver  
C
H
G
C
H
G
Charging LED  
Indicator  
C
H
G
W
A
R
N
IN  
G
:
D
O
N
O
T
AT  
TE  
M
P
T
TO  
R
EC  
H
A
R
G
E
D
IS  
P
O
SA  
B
LE  
B
AT  
TE  
R
IE  
S!  
C
H
G
TFP 035  
AC Power Connection  
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IN CASE OF DIFFICULTY  
If your Tour Guide System is not working, check the following:  
1. Read through the manual and user guide carefully to verify proper setup and installation  
of your system.  
2. Make sure the batteries are fresh or completely charged and that the “plus” and “minus”  
terminals are installed correctly.  
3. If the rechargeable batteries will only work for a short period of time (less than 1 hour) even  
after they are fully charged, they must be regenerated. Leave them in the receiver or transmitter  
with the unit turned on, for 5 - 6 hours. Then turn receiver or transmitter off, place it in the  
charger, and fully charge the receiver (4 hours) and transmitter (14-16 hours). This should  
restore normal battery life. Rechargeable batteries will gradually lose their capacity over time  
and should be replaced every year.  
4. Make sure the microphone is plugged into the PFM T31 Transmitter and the headphone is  
plugged into the PPA R35 Receiver.  
5. Move the transmitter and receiver closer together. You may be out of range. When using the  
system indoors, it’s normal for the signal to momentarily disappear in certain locations. This is  
called a “drop-out.” Moving a few feet will restore the signal.  
6. Do not try to use more than one transmitter on the same channel in close proximity to each  
other. MORE THAN ONE TRANSMITTER ON THE SAME CHANNEL WILL RESULT IN  
INTERFERENCE IF THEY ARE CLOSE TOGETHER. Keep the transmitters at least 30  
meters apart or use separate channels for each system used.  
7. If you are still hearing interference on the receivers, turn the transmitter off and listen with a  
receiver. If you hear the interference with the transmitter off, you need to change to a clear  
channel. Call your Williams Sound at 1-800-328-6190 for details.  
NOTICE  
Williams Sound Corp. assumes no liability for improper use or operation of this equipment. The  
user is cautioned to operate the volume controls at the lowest acceptable level, and in a manner that  
will not cause damage to hearing. Ear pieces and accessories should be worn using good judgement  
and for their intended purpose.  
Users are cautioned that changes or modifications not expressly approved by Williams Sound Corp.  
could void the user’s authority to operate the equipment.  
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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 HEARING HELPER™  
Tour Guide 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 HEARING HELPERTour Guide  
System.  
Microphones, earphones, headphones, batteries, chargers, cables, carry cases, and all 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 HEARING  
HELPERTOUR GUIDE SYSTEM, INCLUDING BUT NOT LIMITED TO, ANY IMPLIED  
WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. 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 REPLACEMENT  
OF THE PRODUCT. NO PERSON HAS ANY AUTHORITY TO BIND WILLIAMS SOUND TO ANY  
REPRESENTATION OR WARRANTY WITH RESPECT TO THE HEARING HELPERTOUR GUIDE  
SYSTEM. UNAUTHORIZED REPAIRS OR MODIFICATIONS WILL VOID THE 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.  
If you experience difficulty with your system, call Toll-Free for customer Assistance:  
1-800-843-3544  
If it is necessary to return the system for service, your Customer Service Representative will give you a  
Return Authorization Number (RA) and shipping instructions.  
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  
complete and mail the attached card. Thank you.  
18  
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SYSTEM SPECIFICATIONS  
FM TRANSMITTER, MODEL PFM T31  
Dimensions:  
Weight:  
3-5/8" L x 2-3/8" W x 7/8" H (92.1 mm x 60.3 mm x 22.2 mm)  
4.4 oz (125 g) with battery  
Color:  
Battery Type:  
Royal blue, shatter-resistant polypropylene  
Two (2) AA 1.5 V non-rechargeable Alkaline batteries  
(BAT 001), 70 mA nominal current drain, 12 hours approx. life  
(OR) Two (2) AA 1.5 V NiMH rechargeable batteries (BAT 026),  
70 mA nominal current drain, 10 hours per charge approx., recharges in 14-16  
hours, uses CHG 200 Charger  
Operating Freq’s:  
Stability:  
Modulation:  
RF Output:  
FCC ID:  
Selectable, 10 channels, 72.1-75.9 MHz, internal DIP switch  
+ .005%, frequency synthesized, crystal reference, PLL  
Wide-band FM, 75 kHz, 75 µS pre-emphasis  
8000 µV/m at 30 m, max., 40 mW typical  
CNM T30  
Freq Response:  
Signal-to-Noise Ratio:  
Auto Gain Control:  
Transmit Antenna:  
Microphone:  
100 to 10 kHz, + 3 dB at 1% max. THD  
55-60 dB, with R31 or R32 Receiver  
40 dB range, 30 mV threshold  
Integral with 39" microphone cord  
Omnidirectional condenser, Lavalier-type, 39" cord,  
3.5 mm mono phone plug (MIC 081)  
Controls:  
On/Off switch, slide-type  
Mute switch, slide-type  
Mic Connector:  
Warranty:  
3.5 mm mono phone jack  
5 years, parts and labor (90 days on accessories)  
RECEIVER, MODEL PPA R35  
Dimensions:  
Weight:  
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)  
Color:  
Gray  
Battery Type:  
Two (2) AA non-rechargeable alkaline batteries (BAT 001), approx. 100 hours  
battery life or  
Two (2) AA rechargeable NiMH batteries (BAT 026), 1400 mAh, approx 56  
hours battery life  
Current Consumption:  
FCC ID:  
Nominal 40 mA  
CNM R35  
Industry Canada Cert.:  
Operating Freq.:  
Intermediate Freq.:  
FM Deviation:  
De-Emphasis:  
1360A-R35  
Pre-tuned, adjustable, 72 MHz-76 MHz *  
75 kHz  
75 kHz  
75 µS  
LED Indicator  
AFC Range:  
Power: Green; Low Battery: Red  
120 kHz  
Sensitivity:  
2 µV at 12 dB Sinad with squelch defeated  
20 mV  
100 – 15 kHz, 3 dB  
65 dB at 10 µV  
Integral with earphone/headphone cord  
35 mW, max. at 16  
3.5 mm mono phone jack  
Earbud-type with foam cushion, 3.5 mm plug, 32 Ω  
The R35 Receiver can be field tuned to any of 10 wideband  
channels using the PLT 005 Tuning Tool.  
Five years, parts and labor. 90 days on cords, earphones,  
headphones, batteries and other accessories  
Input Overload:  
Frequency Response:  
Signal-to-Noise Ratio:  
Receive Antenna:  
Audio Output:  
Output Connector:  
Earphone:  
Notes:  
Warranty:  
NOTE: SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE.  
19  
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®
10321 West 70th St., Eden Prairie, MN 55344 U.S.A.  
800.843.3544 | 952.943.2252 | FAX: 952.943.2174  
© 2006, Williams Sound Corp. MAN 122A  
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