Extron electronic MVX 88 Series ユーザーズマニュアル

a

  Infrared remote sensor — This sensor receives infrared (IR) signals from the 

optional IR 501 small matrix universal remote control.  The IR remote control 

must be pointed within 30 degrees of this sensor for best results.

 

Operation of the IR 501 remote control is described in the IR 501 Small Matrix 

.

N

b

  Power/data/audio LED —

•  When lit, the Power LED indicates that power is applied to the matrix 

switcher.

•  When blinking off and on, the Power LED indicates that an IR signal has 

been received.

•  In Audio Setup mode, the Power LED also serves as an audio meter 

that is tied to output 1.  The LED blinks frequently when the selected 

input’s audio level has been adjusted to the –10 dBV internal reference 

level.  (In Audio Setup mode, the selected input’s audio is automatically 

N

c

  Input buttons and LEDs — The input buttons and LEDs select and identify 

inputs.

 

 The input buttons and LEDs also serve 

as preset selection buttons and indicators, allowing you to select presets to 

either save or recall.  A more detailed explanation of the presets functions is 

d

The output buttons and LEDs select and 

identify outputs.

 

The output buttons and LEDs also 

serve as preset selection buttons and indicators, allowing you to select presets 

to either save or recall.  A more detailed explanation of the presets functions is 

 

The Output 1 through Output 3 LEDs 

also serve as the input audio level indicators, each indicating a range of 6 dB 

when lit:

 

•  Output 1 LED off = 0 dB to 5 dB

 

•  Output 1 LED lit = 6 dB to 11 dB

 

•  Output 1 and 2 LED lit = 12 dB to 17 dB

 

•  Output 1 through Output 3 LEDs lit = 18 dB

 

 

On 8-output switchers, the Output 7 

and Output 8 buttons and LEDs also serve as the Down (

<

) and Up (

>

) 

controls and indicators.  See 

j

 and 

k

.