Williams Sound SoundPlus Infrared System WIR SYS 90V Instalační příručka stáhnout pdf (Strana 7)

Williams Sound

Helping People Hear

AUDIO CONNECTION

MICROPHONE INPUT:

With the modulator DIP switches set for microphone

input, the 3-pin XLR jack accepts balanced

microphones. Power for condenser microphones

can be selected by DIP switch. The minimum input

level is 100uV and the maximum level is 90 mV.

XLR

INE-LEVEL INPUT:

With the modulator DIP switches set for line-level

input, the 3-pin XLR jack accepts balanced line-level

audio inputs. The minimum input level is 21mV and

the maximum level is 10uV.

1/4” TRS LINE-LEVEL INPUT:

The 1/4” Tip/Ring/Sleeve (TRS) jack can accept only

a balanced or unbalanced line-level input.

A 25 V, 70 V, or 100 V speaker line can be connected

to the balanced line input using an appropriate atten-

uator. “T” pads made with resistors yield better fidelity

than speaker matching transformers.

FEATURES AND CONTROLS

POWER SWITCH

Turns the modulator on and off. The associated wall mounted power supply stays on at all times

and may operate continuously.

OWER ON INDICATOR

Indicates operation of modulator.

LEVEL CONTROL

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

audio level processing circuit.

Two Channel Infrared System Modulator

Williams Sound

Power

Phones

-3

-6

-9

-12

-15

-18

-3

-6

-9

-12

-15

-18

3.8

3.3

2.8

2.3

Level

Compress

3.8

3.3

2.8

2.3

Compress

Inputs Mixed

Stereo

CH A

CH B

Frequency

(MHz)

Frequency

(MHz)

Channel A Channel B

Microprocessor Controlled

Frequency Synthesized

Power Switch

Turns the modulator

on and off. The associated

wall mounted power supply

stays on at all times.

Level Controls

Controls level of

audio signal.

Carrier (CXR) LEDs

4 green LED "on" indicators

per channel. Indicates selected

frequency, malfunctions.

Compress Control

Increases transmitted audio

up to 30 dB during periods of low

level sound.

Inputs Mixed

Indicates CH A & CH B

audio are mixed and transmitted

by CH A. CH B is off.

Stereo LED

Indicates Stereo Mode

Power On Indicator

Indicates operation of unit.

Level Indicators

Bar graph level indicator shows

audio level in 3 dB steps at input of

audio level processing circuit.

Phones Jack

1/4" phone jack. Monitors

Channel A or Channel B or

stereo audio depending on

position of phone jack switch,

and mode of operation.

Phones Switch

Push button selects

Channel A or Channel B

audio when not in stereo

mode.

IR LED

Infrared receivers can

be tested using the IR

LED.

Figure 6

Figure 5: Audio Connection

In Phase

3 Pin Connector

Balanced Line Using 3–Pin Connector

3 Pin Connector

Unbalanced Line Using 3–Pin Connector

In Phase

Balanced Line Using 1/4' Connector

Unbalanced Line Using 1/4" Connector

1 2 3 4 5 6 7 8 9 10 11 12 ... 35 36

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