ASL INTERCOM PS 4379 Manual de usuario descargar pdf (Pagina 7)

PAGE 7

User Manual PS 6379 / May 2011 © ASL Intercom BV

7 STAGE ANNOUNCE button

This push button routes the microphone signal

directly to a line level output at the rear panel of the

unit. The microphone signal (the Announcement) is

not sent to the intercom channels. To include the

intercom channels the position of dip switch No 1 of

block A has to be changed (See section 11.0).

To achieve that the Aux signal (coming from AUX

Input #34) is routed to the Stage Announce output,

the position of dip switch dip switch No 4 in block F

has to be changed. See section 11.0

When pushing and holding the STAGE ANNOUNCE

button, the AUX volume is dimmed by a set

percentage (The AUX DIM FACTOR for Stage

Announce). For adjusting AUX level and dim factor

for Stage Announce, see section 10.4. and 10.5

8 SPEAKER ON/OFF button

With this button the loudspeaker can be switched on

or off. The LED in the button is lit when the speaker

is switched on. As soon as a headset is plugged in,

the speaker is automatically disabled (if it was

enabled before). By pushing the speaker on/off

button, the speaker is enabled again and the audio

can be heard over both the speaker and the headset.

When unplugging the headset, the speaker setting

(on or off) is as before the headset was plugged in.

9 SIDE TONE LEVEL trimmers

These trimmers (one for each channel) are for

minimizing the speaker feeding back into the

gooseneck microphone (unit feedback); they also

determine the level of your own voice as it is heard

over the speaker or headset.

10 SIDE TONE HI trimmers

These trimmers (one for each channel) have the

same functions as trimmer #9, but solely for the high

frequencies.

Adjustment procedure for all side tone trimmers, for

each channel separately:

o set trimmer in start position: fully clockwise.

o switch off the microphones of all connected

(speaker-) stations

o make sure that there is no automatic speaker

attenuation (turn trimmer #11 fully clockwise)

o push the TALK button of the channel of which

one wants to adjust the side tone

o slowly turn up the listen volume of the PS 6379

(channel- and master volume)

o speak into the gooseneck microphone

o adjust the speaker listen level to a minimum by

turning the side tone trimmers counter-

clockwise (first trimmer #9 and then trimmer

#10; repeat this a few times)

o Connect a headset to the PS 6379 (the

speaker and gooseneck mic are now

automatically disabled) and speak into the

headset microphone

o Check whether the level of your voice in the

headset can(s) is sufficient. If not, push up the

this listen level a bit by turning side tone

trimmer #9 clockwise.

The trimmer operating area is between fully clock-

wise and minimum level. Adjusting the side tone

does not affect the level of your voice as it is

heard by other stations.

11 SPEAKER ATTENUATOR trimmer

This trimmer adjusts the extent to which the

loudspeaker is automatically dimmed, when the

gooseneck microphone is switched on. It prevents

unit feedback if side tone rejection is not

sufficient.

It also minimizes system feedback or a 'hollow'

sound when the gooseneck microphones of other

speaker stations (on one or several of the

connected party lines) are switched on as well.

Adjustment procedure :

o make sure that there is no headset connected

o switch off all TALK buttons of the PS 6379.

o feed an audio signal to an intercom channel

(see #17 and #34‟)

o turn up the listen volume of the PS 6379

(selected channel- and master volume)

o activate the gooseneck microphone (push the

TALK button of the selected channel)

o adjust the desired degree of speaker

attenuation (turning the trimmer counter-

clockwise increases the attenuation)

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ASL INTERCOM PS 4379 Manual de usuario Pagina 7

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