Yamaha M2500 Manual Do Utilizador

Control panel

A

OSCILLATOR select switches

These switches select a test tone oscillator, and start 
oscillation. Only one switch at a time can be selected. 
The corresponding indicator will light to show the 
switch that is turned on.

• PINK switch

This generates pink noise.

• 10 kHz/1 kHz/100 Hz switches

These generate a sine wave of the corresponding fre-
quency.

B

OSCILLATOR ON switch

This switch turns the oscillator on/off.

C

MIC jack

This is an XLR-3-31 input jack (unbalanced) for con-
necting a talkback mic. Mics of 50–600

Ω

 impedance 

are supported.

D

TB/OSC control

This adjusts the level of the talkback or oscillator.

E

ON switch

This is an on/off switch for the talkback. If this is on, 
the indicator above the switch will light. If you wish 
to use the oscillator, you must turn off this switch.

F

AUX 1-2 switch

G

AUX 3-6 switch

H

AUX 7-10 switch

I

AUX 11-14 switch

J

ST switch

K

MONO/C switch

These switches send the talkback or oscillator signal 
to AUX buses 1–2, AUX buses 3–6, AUX buses 7–10, 
AUX buses 11–14, the STEREO bus, and/or the 
MONO/C bus. Each switch can be turned on/off 
independently.

Note: The oscillator cannot be used together with 
talkback. If you wish to use the oscillator, you must 
turn off the talkback ON switch (5).

6
7
8
9

J
K

1

5

4

3

2

from CPU

MIC

TB/OSC

L R MONO/C

STEREO

ON

AUX

14

13

12

11

10

9

2

3

4

5

6

7

8

1

5 4

3

K

J

67 8 9