Clarion CMD6 RCA out not working

[Lakejackson]

Went out in the boat today and one set of speakers is not working. I switched the RCA’s for the amps and confirmed the amp and speakers work, but one set of RCA’s on at the head unit is not putting out signal. I had the battery unhooked for several days before this happened. Any suggestions for possible issue?


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[MLA]

If you switched the RCAs at the amp, then you left the actual RCA cables or the head unit pre-amp outputs as the issue. If you swapped RCA at the back of the head, then check the FADE setting or the Non-Fade level.

Beyond that, download the cmd6 manual and see if there are some strange default settings it reverted to, that turned off some outputs.