Appendix
132
Troubleshooting Signal and Power Problems, Continued
PROBLEM CAUSES SOLUTIONS
Missing front or rear channels High-level wires making poor Check all connections (include
using high-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
Signal not bypassing Amplifier Confirm connection at first (0)
Chain Position of first (-1) Module of
Amplifier Chain; Check DIP Switch
setting – should be set to all on
Defective component Replace component
Missing front or rear channels RCAs making poor contact at Check all connections (include
using low-level components component or Switching Module cables) or use test Speaker to
connection confirm that signal is passing to &
from each Switching Module
Signal not bypassing Passive EQ Confirm connection at first
Chain Position of first Module of PEQ
Chain; check DIP Switch setting –
should be all on
Defective RCA Check continuity of RCA cables or
replace
Defective component Replace component
Hum Missing RCA ground Check continuity of RCA cables at
component connection & at
Switching Module connections
Defective RCA Same as above
RCA ground shorted to power Same as above &/or use volt
supply ground meter to check voltage from RCA
to power supply ground
Defective component Replace component
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