Extron electronic 68-1383-01 REV. E manual Viewing and Adjusting the Input Audio Level

Viewing and Adjusting the Input Audio Level

The audio level of each input can be displayed and adjusted through a range of -18 dB to +24 dB to ensure that there is no noticeable volume difference among sources (see figure 25). The audio level can be adjusted from the front panel or under remote control. The default audio level is 0 dB.

dBu	VU
+24	21
+21	18
+19	15
+16	12
+13	9	VCR
+10	6
+7	3	Audio
+4	0
+1	-3	Inputs
-2	-6
-5	-9
-8	-12
-12	-15
-15	-18
-18	-21

Low Audio

Output Level

1	2	3	4	5	6	7	8	9	10 11 12 13 14 15 16
1	2	3	4	5	6	7	8	9	10 11 12 13 14 15 16

dBu	VU
+24	21
+21	18
+19	15
+16	12
+13	9
+10	6
+7	3
+4	0
+1	-3
-2	-6
-5	-9
-8	-12
-12	-15
-15	-18
-18	-21

Output

Level

dBu	VU		MTPX Plus 1616	Audio System
+24	21
+21	18
+19	15			No noticeable
+16	12
+13	9			volume differences
+10	6	Audio
+7	3			between sources
+4	0	Inputs
+1	-3
-2	-6
-5	-9
-8	-12
-12	-15
-15	-18
-18	-21

High Audio
Output Level	CD Jukebox

Figure 25. Audio Gain and Attenuation

1.Press the Esc button to clear any input buttons, output buttons, or control buttons that may be lit.

2.To enter Audio mode, press and hold the Audio button until the button begins to blink red, then release the button.

3.Press and release an input button to select an input. The output buttons display the audio level for the selected input; the more output LEDs lit, the greater the gain or attenuation.

•Green output buttons indicate a gain (+) audio level.

•Red output buttons indicate an attenuation (–) level.

Audio gain and attenuation is displayed differently on different models.

•Switchers with 32 output buttons — Each output button indicates 1 dB when lit steadily (see table 4 on page 49).

•Switchers with 16 output buttons — Each output button indicates 1 dB when blinking and 2 dB when lit steadily (see table 5 on page 50).

•MTPX Plus 128 (8 output buttons) — Each output button indicates 1 dB when blinking slowly, 2 dB when blinking quickly, and 3 dB when lit steadily (see table 5 on page 50).

4.Press and release the Esc (>) and View (<) buttons to increase and decrease the audio level.

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

MTPX Plus Series • Operation 48