Extron Electronics MPX 866 A User Guide - Manual (Page 59)

Troubleshooting
This section gives recommendations on what to do if you have problems operating the switcher.
1. Ensure that all devices are plugged in and powered on. The switcher is receiving power
if any of the front panel button indicators are lit.
2. Check to see if one or more outputs are muted.
3. Ensure an active input is selected for output on the switcher.
4. Ensure that the proper signal format is supplied.
5. Check the cabling and make corrections as necessary.
6. Call the Extron S3 Sales & Technical Support Hotline if necessary. See the rear cover of
this guide for the phone number in your region of the world.
Configuration Worksheets
Rather than trying to remember the configuration for each preset, use worksheets to record
this information. Make copies of the blank worksheet on
page 57 and use one for each
preset configuration. Cross out all unused or inactive inputs and outputs. Use different colors
for video and audio.
Worksheet Example 1: System Equipment
Figure 24 shows a worksheet in a fictional organization with the system hardware
annotated. Input 3 and 7 and outputs 10 and 11 have no connections in this organization,
so they have been crossed out on the worksheet.
Computer video group inputs include PCs, wall boxes and an Extron VTG 400. The low
resolution video group inputs include cameras, a VCR, a DVD player, and an audio CD player.
Computer video group output devices include monitors, projectors, a stereo, and a VCR for
recording presentations. The low resolution video group includes low resolution monitors
and audio tape,
The Extron VTG 400 video test generator connected to input 8 or to input 13 enables a
video test pattern to be sent to one, several, or all output devices within the video group
for problem isolation or adjustment purposes. An audio test tape or CD could be used in a
similar manner to check out the audio components connected to the computer video and
audio subgroup.
1 2 3 4 5 6 7 8
1 2 3 4 5 6
Computer video and audio subgroup input sources
Computer video and audio subgroup output destinations
Preset # Title: Video: Audio:
Fill in the preset number and use colors, or dashes, and the like to make connecting lines.
Indicate if the configuration is for video, audio, or both.
9 10 11 13 14
Low resolution video and audio subgroup input sources
7 8 9 10
12
11 12
Low resolution video subgroup output destinations
PC 1
RGB 201
PC 2
RGB 201
ISS 408 Wallbox
#1
Wallbox
#2
VTG
400
Classrm
VCR #1
Classrm
DVD #1
Document
camera
VTG
400
Audio CD
Main
hall
PJ #1
Main
hall
PJ #3
Lobby
sound
Conf.
room
Sound
system
#1
VCR
(USP 405)
Main
hall
PJ#2
Conf.
room
monitor
Classrm
#2
monitor
VCR
Camera/
mic
podium
Figure 24. Worksheet Example 1: System Equipment
MPX 866 A Media Presentation Matrix Switcher • Operation 54