Can RCA cable be tested?

Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=20219
Printed Date: December 20, 2025 at 2:39 AM

Topic: Can RCA cable be tested?

Posted By: mrdragon
Subject: Can RCA cable be tested?
Date Posted: October 17, 2003 at 1:15 AM

Hi guys,

I try to install me EQ, but there is no sound coming from the speaker after connecting it (EQ) through the AMP. What i want to do now is to try and if possible to test the RCA "input" and "output.

Is there a way to test whether is the cable is not working ?

Thanks guys :)

Replies:

Posted By: promodeepcycle
Date Posted: October 17, 2003 at 1:25 AM

If you take a digital multimeter and set it a/c voltage put your (neg) probe on the outside "ground" side of your rca and the (pos) probe on the center lug of the same rca and turn the vol. "gain" up to a reasonable listening level and your should see a variation in voltage. The next test is to continuity test the cable itself. We hope this helps.

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dont be a pet monkey ..use your dmm

Posted By: mrdragon
Date Posted: October 17, 2003 at 2:57 AM

Hi,

Can you tell me how to continuity test the cable itself?

Sorry i am very new to car audio, so wat you telling me is to hook up the EQ again and unplug one of the cable from the EQ either "input" or "output" and test the cable?

Thanks once again :)

Posted By: Velocity Motors
Date Posted: October 17, 2003 at 5:41 AM

Use a DMM and set it to continuity test. It will beep at you if the RCA has NO break in it.

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Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA

Posted By: italnpimp59
Date Posted: October 17, 2003 at 7:27 PM

some multimeters cant test that though, another way you could to it is this. you would have to have someone else to hold the multimeter leads on the rca's and touch the other ends to a drill battery (12V). if you get a 12v reading out of the meter on the other ends of the rca's, then they are ok.

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