Williams Sound HEARING HELPER PFM 300 Manual de usuario
Set Up
Guide &
User
Manual
Hearing Helper® PERSONAL FM System
Models PFM 300 & PFM 350
Wireless FM Listening System
Transmitter Model T30
Williams Sound ®
Receiver Models R31, R32
Helping People Hear
MAN 072C
HEARING HELPER® PERSONAL FM SYSTEM, MODELS PFM 300 / PFM 350
INSTALLATION GUIDE & USER MANUAL
Contents Page
SYSTEM OVERVIEW 4
SYSTEM COMPONENTS 5
USING THE T30 TRANSMITTER 6
USING THE PFM R32 RECEIVER 7
USING THE PFM R31 RECEIVER 8
BATTERY INFORMATION 10
USING YOUR PERSONAL FM SYSTEM WITH A HEARING AID 12
APPLICATIONS FOR VARIOUS HEARING LOSS LEVELS 13
IN CASE OF DIFFICULTY 14
CHANGING FREQUENCIES 15
WARRANTY 17
SYSTEM SPECIFICATIONS 18
ACOUSTIC SPECIFICATIONS 19
Williams Sound ®
Helping People Hear
3
SYSTEM OVERVIEW
Thank you for purchasing the Hearing Helper® Personal FM System from Williams Sound
Corp. Anyone needing auditory assistance to overcome background noise, reverberation, or
distance from the sound source can benefit from the Personal FM System.
Your PFM 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 receiver and earphone are used to pick up
the broadcast up to 100 feet 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 Williams Sound Personal
FM System.
If you have problems with the PFM system, don’t hesitate to call us toll-free at
1-800-843-3544.
FIGURE 1: HOW THE PFM SYSTEM WORKS
FM Radio Signal
Speaker Uses Transmitter Listeners use R31 or R32 Receivers with
With Microphone Earphones, Headphones, Or Neckloop
The speaker wears the body-pack transmitter and a clip-on microphone. The
speaker’s voice is broadcast as an FM radio signal over a distance of 100-150 feet
(30-45 m). Listeners use the pocket receiver and earphone or 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.
Williams Sound ®
Helping People Hear
4
Williams SoundWilliams Sound Williams Sound
Hearing Helper ®
Hearing Helper ®Hearing Helper ®
SYSTEM COMPONENTS
Body Pack Transmitter (PFM T30) with (2) AA batteries (BAT 001)
Lavalier microphone (MIC 090)
Mini earphone (EAR 013)
Soft Nylon System Carry Case (CCS 020)
(2) Belt clip cases (CCS 021)
Instructions (MAN 072)
PFM System 300 Only:
Personal FM Receiver (PFM R32) with (2) AA batteries (BAT 001)
PFM System 350 Only:
Personal FM Receiver (PFM R31) with Plug Mount Microphone (MIC 014)
and (2) AA batteries (BAT 001)
FIGURE 2: SYSTEM COMPONENTS
Earphone
On/Off &
FM Volume
Williams Sound
Hearing Helper
®
Microphone
On/Off Switch
Mic Jack
Microphone
Mic
Volume
On/Off &
FM Volume
Earphone
Williams Sound
Hearing Helper
®
Williams Sound
Hearing Helper
®
T30 Transmitter R32 Receiver R31 Receiver
(PFM 300 & 350 Systems) (PFM 300 System) (PFM 350 System)
Williams Sound ®
Helping People Hear
5
USING THE T30 TRANSMITTER
1. Make sure there are two charged AA batteries in the transmitter. If batteries are not
installed, see Battery Information on page 10.
2. Plug the microphone cord into the “Mic” jack on top of the Transmitter.
Mic
Williams Sound FM
Off On
FM
On/Off
Switch
Mic
Jack
FIG. 3: T30 TRANSMITTER TOP VIEW
3. Place the Transmitter in the belt clip case provided.
4. Turn the power switch on top of the Transmitter to “On.”
5. Clip the microphone onto a collar, lapel, or tie. It should be as close to the speaker’s
mouth as is practical. (See Figure 4.)
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.
FIGURE 4: CORRECT MICROPHONE PLACEMENT
Yes Yes No
The PFM System 300/350 comes with an omnidirectional, lapel-clip style microphone. It
should be clipped to a collar, lapel, tie, or neckline as close to the mouth as possible and
centered on the body as shown.
Note On The Transmitter Antenna:
The microphone cord is the transmitting antenna. Do not bunch up the cord or wrap it around
the transmitter. For maximum range, the cord should hang as straight as possible.
Williams Sound ®
Helping People Hear
6
USING THE PFM R32 RECEIVER (PFM 300):
Receiver model PFM R32 has a single volume control and an earphone output jack.
1. Make sure there are two charged AA batteries in the Receiver. If batteries are not
installed, see Battery Information on page 10.
2. Plug the earphone or headphone into the “Ear” jack on top of the Receiver.
FIGURE 5: R32 RECEIVER TOP VIEW
EAR FM
FM
On
Off Max
Earphone
Jack
On
Indicator
Volume
Control
FM Indicator
3. Turn the power on by rotating the volume control knob on top of the Receiver.
4. Place the earphone in your ear.
5. Choose the correct channel using the right switch on the R32’s back panel.
Unless you have changed the Transmitter channel, set the receiver to channel 1. If the
Transmitter is on and tuned to channel 1, the FM Indicator light on the R32 will light.
TONE Channel
Lo Mid Hi CH1 CH2
FIGURE 6: RECEIVER TONE &CHANNEL CONTROLS
6. Adjust the receiver volume control to a comfortable listening level.
You should be able to hear someone speaking into the Transmitter microphone.
7. Adjust the receiver tone control to your needs. Lo – more low frequencies;
Mid – some low frequency cut; Hi – maximum low frequency cut, emphasizes higher
frequencies. (See Figure 6.)
8. Place the Receiver in the belt clip case provided. The Receiver can be placed in a pants
pocket, or clipped onto a belt, harness, or waistband.
Notes:
The earphone cord is the receiving antenna. Do not bunch up the cord or wrap it around the
receiver. For best reception, the cord should hang as straight as possible. Make sure the
Receiver is turned OFF when not in use. The channel selector can be used to switch between
an individual and a group channel.
Williams Sound ®
Helping People Hear
7
USING THE PFM R31 RECEIVER (PFM 350):
Receiver model PFM R31 has two volume control knobs (one for the FM signal, one for
environmental sounds), a microphone input jack, and an earphone output jack.
1. Make sure there are two charged AA batteries in the Receiver. If batteries are not
installed, see Battery Information on page 10.
2. Insert the small Plug Mount Microphone (MIC 014) into the “Mic” jack on top of the
R31 Receiver.
FIGURE 7: R31 TOP VIEW
FM Volume On Indicator
EAR MIC
FM Mic
FM
On
Min MaxOff Max Mic
Jack
Mic
Volume
Mic Jack
FM
Indicator
3. Plug the earphone or headphone into the “Ear” jack on top of the Receiver.
4. Turn the power on by rotating the taller “FM” volume control on top of the Receiver.
5. Place the earphone in your ear.
TONE Channel
Lo Mid Hi CH1 CH2
FIGURE 8: RECEIVER TONE &CHANNEL CONTROLS
6. Choose the correct channel using the right switch on the R31’s back panel. If the
Transmitter is on and tuned to channel 1, the FM Indicator light on the R31 will light.
7. Adjust the receiver tone control to your needs. Lo – more low frequencies;
Mid – some low frequency cut; Hi – maximum low frequency cut, emphasizes higher
frequencies. (See Figure 6.)
8. Place the Receiver in the belt clip case provided. The Receiver can be placed in a pants
pocket, or clipped onto a belt, harness, or waistband.
Williams Sound ®
Helping People Hear
8
Notes:
The earphone cord is the receiving antenna. Do not bunch up the cord or wrap it around the
receiver. For best reception, the cord should hang as straight as possible. Make sure the
Receiver is turned OFF when not in use. The channel selector can be used to switch between
an individual and a group channel.
Adjusting The R31 Volume Controls
1. Adjust the taller “FM” volume control to a comfortable listening level. You should be
able to hear someone speaking into the Transmitter microphone.
2. Now adjust the shorter “Mic” volume control until you can hear sounds picked up by the
environmental microphone on top of the receiver.
3. Adjust the two volume controls for a comfortable mix of FM and environmental sounds.
You will normally want to have the FM signal louder than the environmental Mic
signal to avoid picking up extra background noise. If no environmental sounds are
desired, turn the “Mic” control fully to “Min”. If you want to hear nearby
conversation or your own voice, turn the “Mic” control up.
Williams Sound ®
Helping People Hear
9
BATTERY INFORMATION
INSTALLATION Open the battery compartment using a coin in the slot in the bottom of the receiver. Press the
batteries into place, observing proper battery polarity. Incorrect insertion of the battery is
difficult, and may cause both mechanical and electrical damage to transmitters or receivers
not covered by the 5 year warranty. Units will not work with the battery incorrectly installed.
FIGURE 9: INSTALLATION OF BATTERIES
or Receiver
Battery
Compartment
Note Proper
Polarity
+–
+ – Pry
Slot
Rear of Transmitter
DISPOSABLE BATTERIES
In normal use, two AA 1.5 V alkaline batteries will last about 12 hours in the T30
Transmitter and approximately 80 hours in the R31 and R32 Receivers, respectively.
If the sound becomes weak or distorted, 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.
RECHARGEABLE BATTERIES
The PFM 300 and PFM 350 Systems can use rechargeable AA batteries (BAT 026). On an
overnight charge, these NiMH batteries are designed to operate a T30 Transmitter for
approximately 10 hours, and R31 and R32 Receivers for 50 and 60 hours, respectively.
The battery installed in the receiver may be recharged in the receiver only if it is a Nickel
Cadmium battery, and only if the Williams Sound CHG 200A charger is used. Damage from
improper charging is not covered by the Williams Sound five year warranty. For charging
directions, see figure 9.
!! 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 batteries!
Williams Sound ®
Helping People Hear
10
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2
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