Matrix System
®
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3. If the MVP Control Panel does respond properly, then the problem is in one or more of the
Chains. After reconnecting all the Dual Chain Modules to the MVP Control Module, connect
one Chain at a time to its Dual Chain Module, power up the System and make several
component selections on each Chain. When the malfunctioning Chain is connected the
problem should appear.
Check to see that the LED indicator lights (located on the upper left-hand corner of each
Switching Module) on each Switching Module in the Chain light up when a position that
should activate that Module is selected. Now disconnect all the Switching Modules in that
Chain and add them back in, one at a time, to determine which Switching Module is
malfunctioning. (If you find a malfunctioning Switching Module, you may bypass that one
and get your System back up while you are solving the problem.)
NOTE: Logic troubleshooting does not require an audio output, so it is possible to determine that your
System is switching correctly and still have partial or no audio output.
REMEMBER: Always unplug the MVP Control Panel from the AC outlet when connecting or
disconnecting Switching Modules. Re-enter Lockout code each time power is reconnected.
Below are some of the most commonly reported problems, the potential cause and suggested solution.
When more than one cause or solution is listed for a problem, try the first one first.
Logic Problems
PROBLEM CAUSES SOLUTIONS
MVP Control Module does May be in Lockout mode Press hidden “reset” button
not accept inputs
MVP Control Panel ribbon cable Check cable on back of Control
off Module
MVP Control Module accepts A break in the Control Cable Confirm that both 20-wire Data
entries, but doesn’t transfer “daisy chain” Cable and 4-wire power cable are
them to Dual Chain Modules chained from DCM to Control
Module, DCM to DCM, etc.
System shuts off after 5 Wrong MVP Control Module DIP Refer to Appendix A and reset DIP
minutes of idle time Switch setting Switch #4 on MVP Control Module
to disable the Inactivity Function
Speakers “pop” when Longer Speaker dropout time Change MVP Control Module DIP
changing amps required – incorrect DIP Switch Switches #1, 2, and 3 according to
setting on MVP Control Module Appendix A
Dual Chain Module DIP Switch Set Dual Chain Module DIP
not set for Speaker Switch according to Appendix A
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