Extron electronic MPX 866 A manual Input Audio Level Adjustment Displays

1.Press the Esc button to clear any input LEDs, output LEDs, or control LEDs that are lit.

2.To enter Audio mode, press and hold the

Audio button until the Audio LED begins to blink, then release the button.

3.Press and release an input button to select an input. The output LEDs display the audio level for the selected input.

Each output LED indicates 1 dB of gain or attenuation when blinking slowly, 2 dB when blinking quickly, and 3 dB when

lit steadily. The Esc (>) and View (<) LEDs display the polarity (gain [+] or attenuation [-]). See the table at right.

4.Press and release the Esc (>) and View (<) buttons to increase and decrease the audio level by 1 dB per each push of the button, or press and hold the button to change the level at a rate of 3 dB per second until the button is released or the upper or lower limit is reached.

5.Press and release the Audio button to exit the Audio mode. The Audio LED stops blinking.

NOTES: • Pressing the Enter or Preset

button also exits Audio mode. Pressing the Preset button changes to Recall Preset mode.

• There is one audio level setting per input. The audio level setting is shared by the left and right audio inputs.

• The audio level settings are stored in non-volatile memory. When power is removed and restored, the audio level settings are retained.

• Exiting Audio mode by pressing the Audio button always returns the I/O LEDs to Video and Audio lit (video and audio selected for configuration).

Input Audio Level Adjustment Displays

				Output LED				View Esc
dB	1	2	3	4	5	6	7	8	dB
+24									+24
+23								F	+23
+22								S	+22
+21									+21
+20							F		+20
+19							S		+19
+18									+18
+17						F			+17
+16						S			+16
+15									+15
+14					F				+14
+13					S				+13
+12									+12
+11				F					+11
+10				S					+10
+9									+9
+8			F						+8
+7			S						+7
+6									+6
+5		F							+5
+4		S							+4
+3									+3
+2	F								+2
+1	S								+1
0									0
-1	S								-1
-2	F								-2
-3									-3
-4		S							-4
-5		F							-5
-6									-6
-7			S						-7
-8			F						-8
-9									-9
-10				S					-10
-11				F					-11
-12									-12
-13					S				-13
-14					F				-14
-15									-15
-16						S			-16
-17						F			-17
-18									-18
	1	2	3	4	5	6	7	8
= on,		F	= blinking fast, S				= blinking slowly,		= off

MPX 866 A Media Presentation Matrix Switcher • Operation 42