Table of Contents
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Summary of Contents for Williams Sound PFM 350
- Page 1 AN UAL AN D UIDE ™ HEARIN G HELPER Persona l FM System W ireless FM Listening System Mo dels PFM 3 5 0 , PFM 3 0 0 , PFM 3 5 0 E RCH, & PFM 3 0 0 E RCH Transmitter Mo del PFM T3 2 O ptio nal Receiver Mo dels PFM R3 2 , R3 1 MAN 072I...
- Page 2 ™ FM S EARING ELPER ERSONAL YSTEM PFM 350, PFM 300, PFM 350E RCH, PFM 300E RCH ODELS & U NSTALLATION UIDE ANUAL Contents Page YSTEM VERVIEW YSTEM OMPONENTS AFETY NFORMATION ECYCLING NSTRUCTIONS PERATING NSTRUCTIONS PFM T32 TRANSMITTER PFM R32 R...
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Page 3: System Overview
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. -
Page 4: System Components
Williams Sound Williams Sound ® ® ® Hearing Helper Hearing Helper Hearing Helper ® ® ® Hearing Helper Hearing Helper Hearing Helper R32 Receiver T32 Transmitter R31 Receiver (PFM 300 & 350 Systems) (PFM 300 System) (PFM 350 System) https://manual-hub.com/... -
Page 5: Safety Information
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. - Page 6 PFM T32 T SING RANSMITTER 1. Install two (2) AA batteries. If you’re using rechargeable batteries, they must be charged before using. See battery information on page 13. 2. Plug the microphone cord into the “Mic” jack on top of the transmitter. 3: T32 T IGURE 3.
- Page 7 PFM T32 F HANGING THE REQUENCY . 5: PFM T32 F REQUENCY HANGE By default, the T32’s frequency is to set 72.9 MHz (Channel E). If you experience FM interference, or if you need to match a receiver’s frequency, it may be necessary to adjust the frequency on the T32. Instructions: 1.
- Page 8 PFM T32 DVANCED EATURES ON THE Gain Control Adjustment . 6: T32 A If necessary, the microphone gain control on the T32 DVANCED EATURES can be increased or decreased to meet the demands of specific listening applications. Instructions: 1. Open the battery compartment using a coin in the slot in the bottom of the transmitter.
- Page 9 PFM R32 R (PFM 300 & PFM 300E RCH): SING THE ECEIVER 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 13.
- Page 10 PFM R31 R (PFM 350 & PFM 350E RCH): SING ECEIVER 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 13.
- Page 11 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.
- Page 12 PFM R32 & R31 R UNING THE ECEIVERS Tuning for the R32 and R31 Receivers is determined by tuning coils, and is stabilized by phase- locked-loop circuitry. A plastic tuning wrench (PLT 005) is needed to adjust the receiver tuning coil. 1.
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Page 13: Battery Information
Note: The battery installed in the receiver may be recharged in the receiver only if it is a NiMH 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 13. - Page 14 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. https://manual-hub.com/...
- Page 15 FM S SING ERSONAL YSTEM WITH A EARING If you have a hearing aid equipped with a Telecoil (T-Switch), you can use a Neckloop (NKL 003–children’s size, or NKL 001–adult’s size) to magnetically couple the signal from the PFM Receiver into your hearing aid. The Neckloop plugs into the earphone jack of the receiver.
- Page 16 If you hear the interference with the Transmitter off, you need to change to a clear channel. See the re-tuning instructions. 11. If problems remain, contact your dealer for further help. Or call Williams Sound toll-free at 1-800-843-3544. https://manual-hub.com/...
- Page 17 Limited Warranty Williams Sound products are engineered, designed, and manufactured under carefully controlled condi- tions to provide you with many years of reliable service. Williams Sound warrants the Hearing Helper ® Personal FM System against defects in materials and workmanship for FIVE (5) years. During the first...
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Page 18: Technical Specifications
5 years, parts and labor (90 days on accessories) PFM R31 Receiver Only Mic Connector: 3.5 mm mono phone jack, supplies positive DC for Williams Sound electret mics Microphone: Plug mount electret, omnidirectional, with windscreen, 3.5mm mono phone plug (MIC 014) -
Page 19: Specifications
COUSTIC PECIFICATIONS ANSI 2.44 T ANSI S3.22–1987 T FM Response (PFM R31, R32) INIMUM Max. SSPL90: 135.8 dB at 500 Hz HF Avg SSPL90: 127.1 dB HF Avg Full On Gain: 37.7 dB at 60 dB in Reference Test Gain: 38.1 dB Response Limit: 80.1 dB F1=200 Hz, F2=8 kHz... - Page 20 © 2007, Williams Sound Corp. MAN 072I https://manual-hub.com/...
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