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Operation, cont'd
Troubleshooting
This section gives recommendations on what to do if you have problems operating
the switcher and describes an actual image problem that Extron has encountered.
1.
2.
3.
4.
5.
6.
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 3-45 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 3-65 shows a worksheet for an MVX 128 A in a fictional organization with
the system hardware annotated. Inputs 10, 11, and 13 have no connection in this
organization, so they have been crossed out on the worksheet.
Camera/
Camera
PC 1
mic - Main
#2
RGB 202
podium
1
2
3
1
2
3
Main hall
Main hall
Podium
FP #1
FP #2
monitor
3
Weekly status mtg
Preset #
Title:
Fill in the preset number and use colors, dashes, etc., to make connecting lines.
Indicate if the configuration is for video, audio, or both.
Figure 3-65 — Worksheet example 1: System equipment
Inputs include PCs, an audio CD player, cameras, and an Extron VTG 300. Output
devices include monitors, front and rear projectors, a stereo, and a VCR for
recording presentations.
The VTG 300 video test generator connected to input 12 enables a video test pattern
to be sent to one, several, or all output devices 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.
3-42
MVX VGA A Matrix Switchers • Operation
Ensure that all devices are plugged in and powered on. The switcher is
receiving power if one of the front panel I/O LEDs is lit.
Check to see if one or more outputs are muted.
Ensure that an active input is selected for output on the switcher.
Ensure that the proper signal format is supplied.
Check the cabling and make corrections as necessary.
Call the Extron S
Sales & Technical Support Hotline if necessary.
3
PC 2
Audio
Classroom
Classroom
RGB 202
CD
#1 VCR
#2 VCR
USP 405
USP 405
4
5
6
4
5
6
Sound
Sound
VCR
system
system
(VSC 500)
#1
#2
Video:
Input sources
Laptop
Rack DVD
RGB 202
(USP 405)
7
8
9
10
10
7
8
9
DA 6
Output destinations
Audio:
VTG 300
11
12
13
11
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