Matrix System
®
131
Troubleshooting Signal and Power Problems
PROBLEM CAUSES SOLUTIONS
Lose sound from speakers Bad RCA cable Check all low-level
when path RCA cables
Amplifieris selected during
Amplifier demonstration
Passive EQ bypass Positions not Check PEQ Module's DIP switches
connected & bypass
Deck has no Low Level output Select a different deck
Component will not trigger Component power or ground not Add component power or ground
on (car audio) connected wire
+12V DC not connected to 0102 Connect +12V DC to trigger
or to Turn-On strip terminals
Blown fuse or defective component Replace fuse and/or component
Balance or fade reversed using High level, right & left wires Check all connections & color
hi level signals reversed at component or Switching codes, or check component output
Module connections directly to Speakers
Defective component Replace component
Balance or fade reversed RCA connectors reversed at Check all connections & color codes
using low-level signals component or Switching Module (include interconnecting RCAs)
connections
Defective or miscolored RCA cable(s)
Reverse left & right RCAs at each
connection to find faulty or
miscolored RCA
Defective component Replace component
Missing 1 channel using hi High-level wires making poor Check all connections (include
level components contact at component or Switching interconnecting wires) or use test
Module connection Speaker to confirm that signal is
passing to & from each Switching
Module
Defective component Replace component
Missing 1 channel using low- RCA(s) making poor contact at Check all RCA connections
level components component or Switching Module
connections
Defective RCA Check continuity of RCA &/or
replace cable
Defective component Replace component
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