Installation guide

Williams Sound

Helping People Hear

Check to see if there is a strong interfering signal by listening to the receiver with the

transmitter turned off. If an interfering signal is causing overload in the receivers, see the

section on insufficient range above. If changing channels does not remedy the problem,

use other technology, such as Williams Sound Narrow Band FM or Williams Sound

Infrared.

USERS MUST TURN RECEIVER VOLUME CONTROLS WAY UP (TO 4 OR 5) TO GET ENOUGH VOLUME

Perhaps there is insufficient audio level. If so, the audio level indicator will read too low

because the audio level is set incorrectly on the transmitter. Correct the Audio Level

control setting.

It could be that the input is not configured for the audio source used. If not, correct the

setting of the Audio Select switch.

Some users may not be helped by this system. Severe hearing loss may require using the

system with a telecoil coupler (i.e., Neckloop) and personal hearing aid.

USERS COMPLAIN OF NOT HEARING LOW LEVEL SOUNDS

Check to see if the Audio Level is set too low. If so, adjust the Audio Level, carefully

noting the Level Indicator. The +6 LED should light occasionally.

Check to see if the transmitter is set for Limit when the program material would benefit

from Compress mode. If so, set the Audio Select switch for Compress.

USERS COMPLAIN OF TOO MUCH NOISE DURING SOFT AUDIO. DYNAMIC RANGE OF MUSIC REDUCED TOO

GREATLY.

Check to see if the Audio Level control is set too high. This problem is more likely to

occur in Compress Mode, but can also occur in Limit Mode. To reduce this noise, adjust

the Audio Level, carefully noting the Level Indicator. The +6 LED should light

occasionally.

Perhaps the transmitter is set for Compress when Limit Mode would be more suitable,

given the program material. If so, set the Audio Select switch for Limit.

BUZZ IN OTHER EQUIPMENT WHEN TRANSMITTER IS ON OR OFF

This is not an RF problem. Instead, it is likely caused by incorrect audio connections, a

ground loop, or defective equipment. To remedy, use proper audio wiring practice to

make connections described on page 14.

BUZZ OR OTHER NOISE IN EQUIPMENT ONLY WHEN TRANSMITTER IS ON

This is likely an RF–induced disturbance in the other equipment. To remedy, try these

steps in order until the buzz is eliminated:

1. Make certain the transmitter chassis is connected to the equipment cabinet rails.

2. Make sure antenna connections are secure.

3. Set the T4 Transmitter to HALF or QUARTER power output using the

FM Channel/FM Power Switch.

4. Install transmitter at a distance from sensitive equipment.

5. Use a remote antenna. (ANT 005 or ANT 024)

6. Make sensitive equipment more immune to RFI/EMI. The manufacturers of your