Extron electronic MAV 48 ユーザーズマニュアル

Reset a specified input’s audio gain or attenuation to the factory default (-12 dB for
captive screw audio connector [A] models, 0 dB for RCA audio connector [A RCA]
models) as follows:

.

Press and hold the Audio Setup (I/O) button for approximately 2 seconds
until the Audio Setup LED lights (figure 3-36).

The LED lights to indicate Audio Setup mode.

Release the Audio Setup button.

2 seconds

Press and hold the button.

Figure 3-36 — Select Audio Setup mode

.

Press and release the Input 5 button (figure 3-37).

= lit,      = unlit

Press and release the Input 5 button.

The Input 5 LED lights to 
indicate that input 5 is selected.

The –dB LED 
indicates a negative 
(attenuation) level.

In this example, the LEDs indicate audio attenuation in the –1 dB to –5 dB range.

The Output 1, Output 2, and Output 3 
LEDs display the input's audio level range.

.

Press and release the 

 and 

 buttons simultaneously (figure 3-38).

Simultaneously press and release the
    button and     button.

The Audio Setup 
LED blinks off 
and then relights.

.

If desired, reset other inputs’ audio levels by repeating steps 2 and 3.

After approximately 30 seconds of front panel inactivity, the switcher saves the
most recent input gain or attenuation levels and exits Audio Setup mode.