Extron Electronics MTPX Plus 6400 Series User Guide - Manual (Page 66)

Optimizing the Audio
Each audio level for each input can be adjusted within a range of -18 dB to +24 dB, so
there are no noticeable volume differences between sources and for the best headroom
and signal-to-noise ratio. The volume for each local audio output can be adjusted from full
loudness to effectively muted. Adjust the levels as follows:
1. Connect audio sources to all desired inputs and connect the local audio outputs to
output devices such as audio players (see “
Signal Inputs ,” in the Installation section).
For best results, wire all of the inputs and the outputs balanced.
2. Power on the audio sources, the switcher, and the audio players.
3. Switch among the inputs (see “ Creating a Configuration ”on page 30), listening to the
audio with a critical ear or measuring the output audio level with test equipment, such
as a VU meter.
4. As necessary, adjust the input audio level of each input (see “ Viewing and Adjusting
the Input Audio Level ” on page 46) so that the approximate output level is the same
for all selected inputs.
5. Tie an audio input to each local audio output.
6. As necessary, adjust the output audio level of each output (see “ Viewing and
Adjusting the Local Output Volume ”on page 48).
Video Adjustments
Image adjustments are available via SIS commands, the Windows-based control program,
and the built-in HTML pages (see “
Optimizing the Video ,” in the Matrix Software section).
Troubleshooting
This section gives recommendations on what to do if you have problems operating the
switcher.
z z Ensure that all devices are plugged in and powered on. The switcher is receiving power
if one of the front panel Power Supply LEDs is lit green.
z z Check to see if one or more outputs are muted.
z z Ensure an active input is selected for output on the switcher.
z z Ensure that the proper signal format is supplied.
z z Check the cabling and make corrections as necessary.
z z Call the Extron S3 Sales & Technical Support Hotline if necessary (see the last page of
this manual for the phone number in your region of the world).
MTPX Plus 6400 Series Matrix Switchers • Operation 60