Toa TS-780 Series User Manual

Page 46

Step 6. Adjust the sound volume of the Chairman/Delegate units.

Press the Talk key on both the Delegate unit in the number set in Step 5 and the Chairman unit to turn

on their microphone. Speaking into the microphone, adjust the volume to an appropriate level using the

Central unit's Conference Unit Volume control.

Step 7. Confirm that no acoustic feedback is generated from any microphone to be used.

If acoustic feedback occurs, widen the distance between conference units or turn down the line volume

in order to prevent feedback.

When acoustic feedback still occurs, take measures to prevent the feedback using a built-in FBS

function or an external graphic equalizer. (Refer to p. 12 "FBS (Feedback Suppressor) Function.")

8.3.2. Setting functions and adjusting Chairman/Delegate units sound output volume

Step 5. Set the number of simultaneously operable Delegate units using the In-use delegate unit number

selector on the front panel of the Central unit.

For details, refer to p. 10.

TS-780 Central Unit

Delegate unit's

ON/OFF switch

IN USE MIC

1 2 3 4

(Factory default: ON)

In-use delegate

unit's

(Factory default: 4)

DELEGATE

OFF ON

TS-781 or TS-782

Conference Unit volume control

Indicator: Extinguishes

Indicator: Lights

TS-780 Central unit