Williams Sound MOD 112 Guía de instalación descargar pdf (Pagina 14)

Williams Sound

Helping People Hear

CONTROLS AND

FEATURES

MOD 111 FRONT PANEL

POWER SWITCH

Turns the entire system on and off. The associated wall mounted power supply stays on at all

times and may operate continuously. There is no “wear out” mechanism.

POWER

ON INDICATOR

Indicates actual operation of modulator. Does not indicate status of power supply.

LEVEL CONTROL

Controls level of audio signal. The control is connected between the input amplifier and the

audio level processing circuit.

LEVEL

INDICATOR

Bar graph level indicator shows audio level in 3 dB steps at input of audio level processing

circuit. Indicator is peak responding and is calibrated so that optimum level is reached when

the amber +3 light usually blinks and the red +6 light only blinks occasionally.

CXR ON

INDICATOR

The Carrier On indicator shows when the carrier is on. The carrier comes on when power is

applied, but goes off automatically if there is no audio for approximately 30 minutes. Audio

sufficient to light the –21 level indicator light will reset the timer, allowing another 30

minutes before the carrier can again go off.

After the carrier has automatically gone off, audio sufficient to light the –21 level indicator

light will turn the carrier back on immediately.

Phones

Infrared

Test Out

MOD 111 Selectable 95/250kHz Infrared System Modulator

Williams Sound

Power

Limit

Compress

Audio

CXR

-21 -18 -15 -12 -9 -6 -3 0 +3 +6

CH 1 Level

Audio Level

Power On Indicator

Indicates actual

operation of unit.

Power Switch

Turns the entire system

on and off. The

associated wall

mounted power supply

stays on at all times.

Level Indicator

Bar graph level indicator

shows audio level ijn 3 dB steps

at input of audio level

processing circuit.

Audio Processor Switch

Selects one of the two

modes: Limit and

Compress

IR LED

Infrared receivers

can be tested

using the IR LED.

Phones Jack

The phones jack allows you to

monitor the "as transmitted"

audio.

CXR On Indicator

The Carrier On indicator

shows when the carrier is on.

Level Control

Control level of

audio signal.

FIGURE 9: MOD 111 FRONT PANEL

1 2 ... 9 10 11 12 13 14 15 16 17 18 19 ... 23 24

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Williams Sound MOD 112 Guía de instalación Pagina 14

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