Instruction/ maintenance manual of the product PFM 350 Williams Sound
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HEARING HELPER ™ Personal FM System W ireless FM Listening System M ANUAL AND U SER G UIDE MAN 072H Models PFM 350, PFM 300, PFM 350E RCH, & PFM 300E RCH T ransmitter Model PFM T32 Optional Rece.
2 Contents Page S YSTEM O VERVIEW 3 S YSTEM C OMPONENTS 4 S AFETY I NFORMA TION 5 R ECYCLING I NSTRUCTIONS 5 O PERA TING I NSTRUCTIONS PFM T32 TRANSMITTER 6 PFM R32 R ECEIVER 9 PFM R31 R ECEIVER 10 B .
3 Thank you for purchasing the Hearing Helper ™ Personal FM System from W illiams Sound Corp. Anyone needing auditory assistance to o vercome background noise, re verberation, or distance from the sound source can benefit from the Personal FM System.
4 Body Pack T ransmitter (PFM T32) with (2) AA batteries (B A T 001) Lav alier microphone (MIC 090) Mini earphone (EAR 013) Soft Nylon System Carry Case (CCS 020) (2) Belt clip cas.
5 CAUTION! CAUTION! CAUTION! S AFETY I NFORMA TION H EARING S AFETY This product is designed to amplify sounds to a high volume le vel which could poten- tially cause hearing damage if used improperly .
6 1. Install two (2) AA batteries. If you’ re using rechargeable batteries, they must be char ged before using. See battery information on page 13. 2. Plug the microphone cord into the “Mic” jack on top of the transmitter . 3. Place the transmitter in the belt clip case provided.
7 C HANGING THE PFM T32 F REQUENCY F IG . 5: PFM T32 F REQUENCY C HANGE By default, the T32’ s frequency is to set 72.9 MHz (Channel E). If you e xperience FM interference, or if you need to match a recei ver’ s frequency , it may be necessary to adjust the frequency on the T32.
Gain Control Adjustment If necessary , the microphone gain control on the T32 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 .
9 U SING THE PFM R32 R ECEIVER (PFM 300 & PFM 300E RCH): Recei ver model PFM R32 has a single volume control and an earphone output jack. 1. Make sure there are two char ged AA batteries in the Recei ver . If batteries are not installed, see Battery Information on page 13.
10 U SING T HE PFM R31 R ECEIVER (PFM 350 & PFM 350E RCH): Recei ver model PFM R31 has two v olume control knobs (one for the FM signal, one for en vironmental sounds), a microphone input jack, and an earphone output jack. 1. Make sure there are two char ged AA batteries in the Recei ver .
11 Notes: The earphone cord is the recei ving antenna. Do not bunch up the cord or wrap it around the recei ver . F or best reception, the cord should hang as straight as possible. Make sure the Recei ver is turned OFF when not in use. The channel selector can be used to switch between an indi vidual and a group channel.
12 T UNING THE PFM R32 & R31 R ECEIVERS T uning for the R32 and R31 Recei vers is determined by tuning coils, and is stabilized by phase- locked-loop circuitry . A plastic tuning wrench (PL T 005) is needed to adjust the recei ver tuning coil. 1. Use the T ransmitter as a tuning signal source.
13 I NST ALLA TION Open the battery compartment using a coin in the slot in the bottom of the recei ver or transmit- ter . Press the batteries into place, observing proper battery polarity .
14 F IGURE 13: U SING T HE O PTIONAL CHG 200A B A TTERY C HARGER T O C HARGE T RANSMITTERS AND R ECEIVERS Step 1: Plug the CHG 200’ s po wer supply into the Power Input on the char ger’ s side and a standard A C wall outlet. Step 2: Route the power cord around the Cord Hook (see figure at right).
15 U SING Y OUR P ERSONAL FM S YSTEM WITH A H EARING A ID If you hav e a hearing aid equipped with a T elecoil (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 Recei ver into your hearing aid.
16 I N C ASE O F D IFFICUL TY If your Personal FM System is not working, check the follo wing: 1. Read thr ough the manual and user guide car efull y to v er ify proper setup and installa tion of your system . 2. Make sure the batteries are fresh or completely char ged and that the “plus” and “minus” termi- nals are installed correctly .
17 Limited W arranty W illiams Sound products are engineered, designed, and manufactured under carefully controlled condi- tions to provide you with man y years of reliable service. W illiams Sound warrants the Hearing Helper ® Personal FM System against defects in materials and workmanship for FIVE (5) years.
18 T ECHNICAL S PECIFICA TIONS FM T RANSMITTER , M ODEL PFM T32 Dimensions: 3-5/8" L x 2-3/8" W x 7/8" H (92.1 mm x 60.3 mm x 22.2 mm) W eight: 4.4 oz (125 g) with battery Color: Royal blue, shatter-resistant polyprop ylene Battery T ype: T wo (2) AA 1.
19 A COUSTIC S PECIFICA TIONS Environmental Mic Response (PFM R31 Only) Input: 80 dB random noise Device: KEMAR mannequin with BTK 3550 T ester Y : 80.0 dB 80 db Main Y : 50.2 dB X: 100 Hz + 8 OCT LOG Main X: 4 kHz ANSI S3.22–1987 T EST FM Response (PFM R31, R32) M INIMUM L OW C UT (T ONE S ET T O L OW ) Max.
© 2007, Williams Sound Corp. MAN 072H.
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If you already are a holder of Williams Sound PFM 350, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Williams Sound PFM 350.
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