Ashly TM-360 Посібник з експлуатації - Сторінка 7

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Operating Manual - TM-360 Public Address Amplifier

7) Input 3 Gain Control

Input 3 gain trim range is adjustable from -10dB to +10dB

8) Input 2 Connectors

3.5mm Euroblock connectors and summed stereo RCA jacks are used for input 2. If wiring an

unbalanced input signal into a balanced Euroblock input, be sure to ground the (-) input pin.

9) Input 2 Gain Control

Input 2 gain trim range is adjustable from -10dB to +10dB. This control is also used to fine

tune the signal threshold that will trigger the muting of input 3.

10) Input 1 Connector

A 3.5mm Euroblock connector is used for input 1, and can be used as a mic level or line level

input. As a balanced line input, it can connect to a telephone paging system instead of a microphone.

If the input signal is unbalanced, be sure to ground the unused (-) input pin.

11) Input 1 Gain Control

Input 1 gain trim range is adjustable from 0dB to +50dB. A typical line level input setting

would be close to 0dB. A typical Microphone input setting would be closer to +50dB. This control

is also used to fine tune the signal threshold that will trigger the muting of input 2 (or inputs 2 and 3

if linked.

12a) Manual Mute Contact Closure

Contact Closure between pins 1 and G will mute input channel 2, or mute channels 2 and 3

together if they are linked using mix configuration switch #6. This is typically used when a micro-

phone plugged into channel 1 has a push-to-talk switch, whereby the pressing of the switch not only

turns on the mic but also mutes the signal on channel 2, or channels 2 and 3 if they are linked. When

the switch is released, the signal on channels 2 and 3 returns.

12b) Master System Standby

The TM-360 has a power saving standby mode which can be triggered by 25 minutes of audio

inactivity, or by contact closure of the Master System Standby connector pins G & 2. When in

standby mode, the front panel power LED will turn red, changing back to blue for normal operating

mode. Standby mode is ended when there is audio signal present again, or when the Master System

Standby circuit is opened. Master system standby has priority over standby due to inactivity.