Williams Sound Hearing Helper T800 Mode d’emploi

Hearing Helper™T800 Transmitter

Wireless FM Listening System

Ma n u a l a n d us e r Gu i d e

Transmitter Model T800

Optional Receiver Model R863

Hearing Helper™T800 Tr a n s M i T T e r

Ma n u a l a n d us e r Gu i d e

Co n T e n T s Pa G e

System Overview ..................................................................... 3

T800 Transmitter Instructions................................................ 4-6

Features and Controls ......................................................... 4

Antenna Connection ........................................................... 4

Power Connection .............................................................. 4

Selecting a Frequency......................................................... 5

Connecting an Audio Source .............................................. 5

Adjusting the Audio Source.............................................. 5-6

Receiver Safety Information .................................................. 7-8

R863 Receiver Instructions................................................... 9-13

Features & Controls............................................................ 9

R863 Belt Clip Instructions ............................................... 11

Receiver Battery Information ......................................... 12-13

Receiver Charger Information ................................................ 14

Troubleshooting Guide ........................................................ 15-16

Warranty............................................................................... 17-18

System Specications ............................................................. 19

sy s T e M ov e r v i e w

Thank you for purchasing the Hearing Helper™ T800

transmitter from Williams Sound Corp. This wide-band FM

transmitter operates on the 863 MHz bandwidth and con-

nects directly to your facility’s sound system; alternatively,

it can used with a microphone as a stand-alone system. The

T800 is designed for use with the optional R863 FM receiver

to provide hearing assistance or language interpretation to a

listening audience.

The T800 transmitter operates much like an FM radio station.

The transmitter picks up the audio directly from the facility’s

mic or sound system which are broadcasted over an FM radio

signal. Listeners use the R863 receivers equipped with head-

sets to pickup the FM broadcast up to 400 feet away.

To avoid difculties, please read through these instructions as

you begin to use the system. Then save the manual for ques-

tions that arise as you continue to use your system. If at any

time you are having problems with this product, please contact

Williams Sound toll free for assistance: +1 952 943 2252.

Sound System Amplifier

Loudspeakers

Mics

Line-Level Output

R863 Wide-band

Receivers w/Earphones

Line-Level Input

T800 Transmitter

Fi g . 1: Ov e r a l l Sy S t e m Di a g r a m

se T T i n G u P T h e T800

• St e p 1:Se l e c t lo c a t i o n

Position the T800 transmitter near the audio source (i.e. sound

system, mixer) from which it will receive audio.

• St e p 2:in S t a l l t h e an t e n n a

Gently thread the antenna onto the stud recessed in the hole on

the back of the transmitter. To use a remote antenna, contact

your dealer or Williams Sound.

• St e p 3:co n n e c t t h e po w e r

Locate the power supply cord equipped with the 3-pin con-

nector, then plug the connector into the “AC Power In” jack

located in the back of the T800. Plug the power supply into

the AC outlet. Press the “Power ON/OFF” control on the front

Fi g .2:Fe a t u r e S &co n t r o l S

1. Headphone Jack

2. Headphone Volume Control

3. Frequency Display (LCD)

4. Up Button

9. Antenna Connector

10. RF Power Output Switch

11. Audio Input Jack, RCA Type

(Line-level, Unbalanced) with

Gain Control

5. Down Button

6. Set Button

7. Menu Control

8. Power ON/OFF Control

12. Mic Input Jack, Combo 3-Pin XLR

or 1/4” TRS (Balanced/unbalanced)

with Gain Control

13. DC Power In Jack

14. AC Power In Jack

10 12 1413

2 3 54 6 7 8

of the unit. On power up, “Williams Sound T800” will appear

briey while the system initializes. The system will then dis-

play the current operating “CHANNEL” (1-16).

• St e p 4:Se l e c t t h e Fr e q u e n c y

The T800 operates on the 863-864 MHz bandwidth with six-

teen selectable preset channels. Channels 1-3 are standard and

coincide with channels 1-3 on the R863 (optional) receiver:

CH 1 = 863.250 MHz, CH 2 = 863.750 MHz, CH 3 = 864.750 MHz

Non-standard operating channels (4-16) available are:

CH 4 = 863.050 MHz, CH 5 = 863.400 MHz, CH 6 = 863.550 MHz

CH 7 = 864.000 MHz, CH 8 = 864.150 MHz, CH 9 = 864.300 MHz

CH 10 = 864.450 MHz, CH 11 = 864.600 MHz, CH 12 = 864.950 MHz

CH 13 = 863.150 MHz, CH 14 = 863.650 MHz, CH 15 = 863.900 MHz,

CH 16 = 864.850 MHz

The T800 is set at the factory to Channel 1 (863.250 MHz).

To change the channel, press and hold the “Set” button for 3

seconds (cursor will ash), then press the “+” Up or “-” Down

button until the desired channel (1-16) is displayed. No further

action is required, the selection will be saved into memory

after 3 seconds.

To view the current operating frequency (i.e. “863.250 MHz”)

on the T800, press the “MENU” button once. To change the

operating frequency, press and hold the “Set” button for 3

seconds (cursor will ash), then press the “+” Up or “-” Down

button until the desired frequency is displayed. The selection

will be saved into memory after 3 seconds.

• St e p 5:co n n e c t t h e au d i o So u r c e

On the back of the T800, two audio input jacks are available:

an RCA-type jack for line-level, unbalanced audio sources;

and a combo XLR (3-pin) and 1/4” TRS jack for connecting

unbalanced/balanced audio sources. Connect the desired audio

source to the T800 transmitter and proceed to Step 6.

• St e p 6:ad j u S t t h e a u d i o le v e l

Locate the “Gain Control” on the rear of the T800. With

the audio source playing, use a small screwdriver or tuning

wand to rotate the “Gain Control” clockwise “+” to increase

or counterclockwise “-” to decrease gain. Monitor the audio

indicator “bars” on the display as you make your adjustments.

As a general guideline:

No audio indicator bars present = Audio source is TOO LOW.

Some audio indicator bars present = Audio source is ACCEPTABLE

“Limiting” message is displayed = Audio source is TOO HIGH.

Ensure the audience is receiving the highest quality

audio: listen to the audio through the headphone

jack on the front of the T800 (FIG. 2).

• St e p 7:li S t e n w i t h a n FMre c e i v e r

IMPORTANT: The FM receiver being used with the T800

transmitter will need to be on the same frequency as the trans-

mitter!

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

page 9 for detailed operating instructions on the R863 receiver.

sa f e T y in f o r M a T i o n

he a r i n g Sa F e t y :

CAUTION!

The R863 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 on the receiver 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), re-

duce the volume setting and move the microphone away from

the earphone or headphone.

4. Do not allow children or other unauthorized persons access to

the receiver.

Ba t t e r y Sa F e t y a n d di S p o S a l :

CAUTION!

The R863 receiver is supplied with disposable Alkaline bat-

teries. Do not attempt to recharge disposable batteries, which

may explode, release dangerous chemicals, cause burns, or

other serious harm to the user or product.

pa c e M a k e r Sa F e t y :

CAUTION!

1. Before using the R863 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.

re C y C l i n G in s T r u C T i o n s

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 an electron-

ics 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 collec-

tion point for recycling.

us i n G T h e oP T i o n a l r863 re C e i v e r

Fig.3:r863re c e i v e r vi e w S

On/Off/Channel

Selector Switch

Volume Control

Earphone/Headphone Jack

"On" Indicator LED

R863 Top

R863 Front

us i n G Th e r863 re C e i v e r , C o n T .

Note: Rechargeable batteries are shipped in a discharged state

and must be charged overnight before using.

1. Make sure there are two alkaline or rechargeable AA batter-

ies in the Receiver. If batteries are not installed, see Battery

Information on page 12-13.

2. Plug the earphone or headphone into the “ ” Jack on top of

the Receiver.

3. Put on the earphone or place the headphones over your ears.

4. Turn the unit on: turn the On/Off/Channel switch to position

“1” or “2” or “3.” The Power “ON” LED indicator should il-

luminate Red.

5. Select a desired operating frequency. To operate on 863.25

MHz, turn the On/Off/Channel switch to position “1”; to oper-

ate on 863.75 MHz, turn to position “2”; to operate on 864.75

MHz, turn to position “3.”

Important: Make sure the receiver is operating on the same fre-

quency as the transmitter! The receiver’s channel switch

(1-2-3 position) should match the transmitter’s channel switch.

6. Adjust the receiver volume control to a comfortable listening

level.

You should be able to hear someone speaking into the trans-

mitter microphone.

The receiver can be placed in a pocket, or clipped onto a belt,

harness, or waistband.

IMPORTANT: When the R863 receiver is not being used,

remember to turn the unit OFF by turning the On/Off/Chan-

nel switch to the “ ” power icon position. The Power “ON”

LED indicator should not be lit.

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