Extron electronic 48, MVX 88 Infrared Sensor and Power/audio/data LED, b Power/data/audio LED

Infrared Sensor and Power/audio/data LED

aInfrared 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 IR Remote Control User Guide.

NOTE: Keep the switcher out of bright light to prevent interference with the IR signals from the IR 501 remote control.

bPower/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 audio level of the selected input has been adjusted to the –10 dBV internal reference level. (In Audio Setup mode, the audio of the selected input is automatically tied to output 1.) See “Adjusting Input Audio Gain and Attenuation” on page 23 and “Optimizing the Audio” on page 31.

Input and Output Selection Controls and Indicators

NOTE: If the switcher has fewer than eight inputs or outputs, it has fewer input or

output buttons and LEDs.

cInput buttons and LEDs — The input buttons and LEDs select and identify inputs.

Alternate preset selection function — 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 included in “Using Presets”, beginning on page 20.

dOutput buttons and LEDs — The output buttons and LEDs select and identify outputs.

Alternate preset selection function — 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 included in “Using Presets”, beginning on page 20.

Alternate audio indication function — 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

See “Adjusting Input Audio Gain and Attenuation” on page 23.

Alternate audio adjustment function — On 8-output switchers, the Output 7 and Output 8 buttons and LEDs also serve as the Down (<) and Up (>) controls and indicators. See item j and item k.

MVX 44 / 48 / 84 / 88 VGA Matrix Switchers • Operation 9