Hey guys.

I recently acquired an Eclipse CD4000, and everything is working great...EXCEPT the pre-outs. This particular receiver has three sets of them, and via a voltage meter check, they are not pushing a signal at all. So my amp has power, but is not getting a signal from the receiver for sound...so the sub is not working.

I've searched the internet and through the owners manual, and I can not find a solution to the problem.

Thoughts or ideas on what this could be?

 

Some headunits require you to turn them on. These by default are not always on due to possible interference and can cause a short. (E.g. some older clarion head units )

Sent from my MB860 using Tapatalk

 

That's what I was thinking.

I have searched all over the internet and looked through the manual at great length for how to turn them on, but no luck thus far.

 

eclipse do not have a feature to turn off pre-outs, My Cd8455 never had such problems and as far as I know never had a feature that I seen where it was able3 to turn off. the Eclipse I have is for sale if interested(not to thread jack)

 

Is the headunit producing sound through the speaker outputs, just not
through the RCA (preamp) outputs?
A few things to confirm -
- volume knob is not turned all the way down
- output is not muted
- you are measuring AC voltage, not DC, in the proper range (fraction of a volt
to a few volts)

 

Speakers up front definitely have sound.

Output is not muted.

And we did measure AC voltage.

 

I say try a different set of RCA's, just so you can eliminate that as a problem. Are you sure that the RCA inputs on the amp aren't bad?