Muting function – Toa A-2240 SA User Manual

Page 7

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10. Output Terminals

Connect to speakers. When connecting

speakers use only one of the speaker output

terminals, low or high impedance.

11. Terminal Cover

To avoid electric shock by high voltage from

output terminal, put back the terminal cover

after connecting speaker cords.

12. MIC 1, MIC 2 and MIC 3 Inputs

-60 dB (1mV), 600 Ω, unbalanced.

Because microphone input is unbalanced

type, phone plug uses single pole type.

(Refer to Input Connection in detail)

13. AUX Input Terminals

-20dB, 10kΩ, unbalanced. Monaural RCA pin

jacks. Accept external equipment output

signal.

14. Muting Level Control

Adjusts the background music level 0 ~ 30dB

to be automatically reduced when priority

function is operated.

15. Ground Terminal

Connect to ground (earth) to avoid electric

shock.

6. MUTING FUNCTION

• Mic1 input has a priority function. When Mic1 input is used, it takes precedence and automatically reduces

the volume of Mic2, Mic3, and Aux inputs by 0 to 30 dB, which is adjustable with the MUTE ADJ on rear

panel. The attenuation level is preset for -30 dB at the factory.

MUTE ADJ

0

-30dB

Remark: About Mute function.

When signal is in Mic1, the mute circuit works promptly.

When signal Mic1 is disappear, it returns to an old state about 3 seconds later.

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