Williams Sound WIR TX90 Fehlerbehebungshandbuch

Sound Plus™Infrared Listening System

Model WIR TX90, Two Channel System

Model WIR SYS 90V, Two Channel System

Model WIR SYS 90 PRO, Two Channel System

Transmitter Model WIR TX90

Optional Receiver Models WIR RX22-4, WIR RX14-2, WIR RX16

Optional Charger Model CHG 516

INSTALLATION GUIDE &

USER MANUAL

MAN 119D

SOUNDPLUS™INFRARED LISTENING SYSTEM,

Model WIR TX90, Two-Channel Listening System

Model WIR SYS 90V, Two-Channel Listening System

Model WIR SYS PRO, Two-Channel Listening System

INSTALLATION GUIDE & USER MANUAL

CONTENTS PAGE

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

Installation Procedures

Determining Coverage Area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

Connect Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

Connect Audio Source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

Selecting a Frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

Select an Application Preset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

Adjusting Audio Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

Adjusting Tone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

Using the optional WIR TX9 Emitter for Additional Coverage . . . . . . . . . . . . . . . . . . . . .9

Receiver Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

Optional IR Receiver Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

Trouble Shooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15

SYSTEM OVERVIEW

The WIR TX90 two channel infrared transmitter combines infrared modulator and emitter technology into a

single mountable enclosure - reducing operating cost and eliminating precious rack space.

The WIR TX90 features an easy to use configuration preset for Music, Voice, or Hearing Assistance

Applications. It operates on dual 2.3/2.8 or 3.3/3.8 MHz selectable frequencies - ideal for high quality audio

programs such as music, theater and audio description. The WIR TX90 will accept any line level, balanced or

unbalanced audio inputs, and includes adjustable tone and volume control. Infrared receivers detect the trans-

mission and convert the light signals back into audio signals. The 2.3-3.8 MHz operating frequencies mini-

mize high efficiency lighting interference.

No FCC license or radio approval is required with this equipment. It can be used anywhere in the world.

NOTE: This equipment has been tested and found to comply with the limits for a Class A digital device, pur-

suant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful

interference when the equipment is operated in a commercial environment. This equipment generates, uses,

and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manu-

al, may cause harmful interference to radio communications. Operation of this equipment in a residential area

is likely to cause harmful interference in which case the user will be required to correct the interference at his

own expense.

NOTICE: A PLASMA MONITOR CAN DEGRADE THE AUDIO QUALITY OF THE WIR TX90

TRANSMITTER. FOR BEST PERFORMANCE, THE TRANSMITTER SHOULD BE POSITIONED

AS FAR AWAY FROM THE PLASMA MONITOR AS POSSIBLE.

FIGURE 1: TYPICAL TWO-CHANNEL CONFIGURATION FOR THE WIR TX90

DETERMINE COVERAGE AREA

Determine the coverage area needed for the seating area. When using the WIR TX90 transmitter with the

RX22-4 receiver, in single channel mode, the WIR TX90 can achieve a coverage area of 28,000 ft2

(2,600 m2). In four channel mode, the WIR TX90 divides its power among the four signals to achieve a

coverage area of 11,000 ft2(1,022 m2). NOTE: The coverage area will vary depending on the sensitivity

of the infrared receiver being used. The following diagram illustrates coverage area when using a RX22-4,

RX14-2, or RX16 receiver with a single WIR TX90 transmitter in single channel mode.

Feet

Feet 90 100 110 120 130 140 150 160

-10

-20

-30

-40

-50

-60

-70

-80

-90

RX22-4 Receiver

Receiver Coverage Area with WIR TX90

Transmitter in Single Channel Mode

RX16 Receiver

RX14-2 Receiver

FIGURE 2: MAXIMUM RANGE WHEN USING THE RX22-4, RX14-2, OR RX16 RECEIVER

These patterns are the direct radiation pattern. The infrared radiation does not drop to zero outside the illustrated

patterns; it decreases. It still may be useable at a greater distance, depending on the receiver sensitivity and the

reflective characteristics of the room.

Reflections of the infrared light from walls, ceilings, and floors may change these patterns.

Important: Remember to point the transmitter towards the listening audience!

Remember: opaque objects block infrared light. Thus, the transmitter cannot be concealed behind opaque walls, curtains, etc.

FIGURE 4: NOTE: WHEN POINTING THE EMIT-

TER, BE SURE TO KEEP THE LONG DIMENSION HOR-

IZONTAL.

FIGURE 3: 3 DIMENSION FOOT PATTERN

WIR TX90 WIR TX9

WIR TX9 WIR TX9

FIGURE 5: OVERLAPPING ILLUMINATION PATTERNS TO COVER LARGER LISTENING AREAS

WIR TX90

Coverage Area

with Single Transmitter

Coverage Area

with Second Emitter

Added to Same

Emission Point

(50% increase)

WIR TX9

FIGURE 6: OVERLAPPING ILLUMINATION PATTERNS TO COVER LARGER LISTENING AREAS

POWER CONNECTION FOR U.S. APPLICATION

Connect the TFP 010 power supply to the 3-pin Molex™connector located on the rear of the TX90 (see Figure 8, below).

FOR APPLICATIONS OUTSIDE THE U.S. REQUIRING 240 VAC MAINS SUPPLY:

Use the transformer power supply, model TFP 027. Make sure

TFP 027 power input switch (located on bottom of power supply)

is set to the “230” position.

Secondary specifications: 24 VAC, 35 VA, 50/60 Hz.

Plug the power supply into the AC outlet.

TFP 027-01: 230VAC, Euro Mains Plug

TFP 027-02: 230VAC, UK Mains Plug

NOTE:

The WIR TX90 transmits when a baseband signal is present, and will shut off immediately when

no baseband signal is present. This auto shut-off feature preserves the life of the infrared LEDs

and reduces power consumption.

This system is designed for class 2, low-voltage wiring. Always follow

local electrical codes when doing low voltage wiring.

CONNECT POWER

WARNING: POWERLINE VOLTAGE MUST NOT FALL BELOW 90V, 0R

SYSTEM PERFORMANCE WILL BE GREATLY REDUCED!

FIGURE 7: WIR TX90 REAR VIEW

Power Connection

Plug in Power Supply

120 VAC (US): TFP 010

230 VAC (CE): TFP 027

Wall/Ceiling

Mounting Bracket (BKT 024)

Set of threaded holes for use

with mounting bracket

Baseband Out

BNC Connector, 50 Ω

50 kHz-8 MHz Baseband

Power In Jac

FIGURE 8

CONNECT AUDIO SOURCE

Determine the length of the audio cable needed to connect to the sound system to the WIR TX90 transmitter.

Install the supplied Phoenix connector on the end of the audio cable to be connected to the transmitter. See the

back of the WIR TX90 for wiring instructions.

The WIR TX90 will accept line level, balanced or unbalanced audio inputs. If you wish to operate in single chan-

nel mode, plug the audio cable with the installed Phoenix connector in “Channel A” OR the “Channel B” connec-

tor. If you choose to operate in two channel mode, plug the audio cables with Phoenix connectors in both “Channel

A” AND “Channel B” connector. NOTE: By default, the WIR TX90 is set to operate in two-channel mode. To

turn Channel A or Channel B on/off, refer to the instructions Selecting a Channel, below.

SELECTING A CARRIER FREQUENCY PAIR

The WIR TX90 offers two sets of carrier frequencies for Channel A and Channel B:

2.3 and 2.8MHz or 3.3 and 3.8MHz.

The WIR TX90 is preset to 2.3 and 2.8 MHz, which are the most commonly used. Move the slide switch to select

a pair of operating frequencies.

SELECTING A CHANNEL

To activate a channel, press the “CHANNEL” button until the channel “ON” indicator lights. For example, to oper-

ate only channel A, press the “CHANNEL” button until only the channel A “ON” indicator lights. To operate both

channel A and B, press the “CHANNEL” button until both “ON” indicators light.

Note: If you’re only using one channel, make sure the other channel is turned off to maximize system coverage.

FIGURE 9: AUDIO SOURCE CONNECTIONS

Power on Indicator

FIGURE 10

SELECT THE AUDIO PROCESSING APPLICATION PRESET

The WIR TX90 offers three preset audio processing options for the most common applications: Music, Voice, and

Hearing Assist. Use the “Music” setting when maximum dynamic range and audio quality are preferred. Use the

“Voice” setting for simultaneous interpretation, audio description, or other applications with users that have prima-

rily normal hearing. Use the “Assist” setting for hearing assistance applications to meet the reduced dynamic range

needs of hearing impaired listeners. You may select the same audio pre-set for both Channel A and Channel B, or

you may select them independently.

To select the audio processing preset, you must first activate the channel you want to adjust. Press the “channel”

button to activate the channel(s) you want to choose an audio processing preset for, then press the “Presets” button

to choose the preset. The Music, Voice, or Assist indicator will light to show your selection. After 10 seconds, the

setting will be stored.

ADJUST AUDIO INPUT LEVEL

The TX90 is designed to accept a line-level audio input signal. The “Level” indicator light for each

channel is used to help adjust the audio input level. When the indicator does not light, the input signal

level is too low. When the indicator is flashing, the signal level is optimal. When the indicator is steadily

lit, but does not flash, the input level is too high and can cause distortion. You can adjust the input level

of both channels simultaneously, or independently.

Make sure the input audio signal is connected to the WIR TX90. To adjust the audio input level, first activate

the channel(s) you want to adjust by pressing the “CHANNEL” button, then press the “VOLUME” button.

The Volume indicator will light. Now, turn the “ADJUST” knob clockwise to increase the input signal or

counter-clockwise to decrease the input signal until the channel “Level” indicator is flashing. After 10

seconds, the setting will be stored.

** IMPORTANT **

Audio level NORMAL (optimal): the audio indicator level will flash at a 1 second rate.

Audio level too HIGH: the audio indicator level will stay on or flash erratically.

Audio level too LOW: the audio indicator level will be off.

ADJUST TONE

The WIR TX90 has a tone adjustment to suit user preference and to compensate for the different fre-

quency responses of various infrared receiver models. First, make sure the audio source is active. Use a

receiver from the system to listen to the signal as you adjust the tone control.

To adjust the tone, first activate the channel(s) you want to adjust by pressing the “CHANNEL” button,

then press the “TONE” button. The tone indicator will light. Now turn the “ADJUST” knob clockwise to

emphasize high frequencies (best for hearing assistance use). When you have reached the maximum

adjustment, there will be no further change in tone. Turn the “ADJUST” knob counter-clockwise to

decrease the high frequency emphasis. When you have reached the minimum adjustment, there will be

no further change in tone. After 10 seconds, the setting will be stored.

USING THE OPTIONAL WIR TX9 SLAVE EMITTER FOR ADDITIONAL COVERAGE

For larger facilities, additional emitter panels can be used to increase the overall coverage area. In these

cases, we recommend using the WIR TX9 slave emitter in tandem with the WIR TX90. The WIR TX90 can

drive multiple WIR TX9 emitters at one time. Each TX9 emitter will require its own power supply.

To add a second WIR TX9 emitter panel to the WIR TX90 transmitter, repeat the process above

(the WIR TX90 transmitter has two baseband output jacks).

Note: The WIR TX9 emitter panels can be “chained” together if needed for unlimited coverage area.

Each WIR TX9 emitter will require its own power supply. See Figure 12 below.

To TX9 Emitter

Baseband

Input

Baseband

Output

WIR TX9 Emitter (Rear) WIR TX90 Transmitter (Rear)

FIGURE 11: CONNECTING A WIR TX9 EMITTER TO A WIR TX90 TRANSMITTER

To TX9 EmitterTo Second TX9 Emitter To Additional EmitersTo additional Emitters

WIR TX9 Emitter #1 (Rear) WIR TX90 Transmitter (Rear)WIR TX9 Emitter #2 (Rear)

Baseband

Input

Baseband

Output

Baseband

Input

Baseband

Output

Baseband

Output

Baseband

Output

FIGURE 12: CHAINING MULTIPLE WIR TX9 EMITTERS TOGETHER

RECEIVER SAFETY INFORMATION

HEARING SAFETY

Williams Sound receivers are 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:

Make sure the volume is turned down before putting on the earphone or headphone before

adjusting the volume to a comfortable level.

Set the volume level at the minimum setting that you need to hear.

If you experience feedback (a squealing or howling sound), reduce the volume setting and move

the microphone away from the earphone or headphone.

Do not allow children or other unauthorized persons to have access to the receiver.

BATTERYSAFETY AND DISPOSAL

Williams Sound receivers are 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

Before using Williams Sound receivers with a pacemaker or other medical device, consult your

physician or the manufacturer of your pacemaker or other medical device.

If you have a pacemaker or other medical device, make sure that you are using the Williams

Sound receiver in accordance with safety guidelines established by your physician or the pace-

maker manufacturer.

BATTERYSAFETY 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.

CAUTION!

RECYCLING INSTRUCTIONS

11/20/07

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