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checking rca’s with a dmm

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=102105
Printed Date: May 12, 2025 at 2:45 PM


Topic: checking rca’s with a dmm

Posted By: dustin23
Subject: checking rca’s with a dmm
Date Posted: February 11, 2008 at 9:12 PM

how can i check my rca's with a digital multimeter?

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dustin213



Replies:

Posted By: ya boy mike
Date Posted: February 11, 2008 at 9:23 PM

What are you trying to check, just to see if they are still good, or pinched, or what?

You can test for continuity from one end tyo the other, or if you think they are pinched somewhere possibly check continuity with ground



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It Hz



Posted By: stevdart
Date Posted: February 11, 2008 at 9:35 PM

I'm guessing that you are asking about reading deck output voltage?  Be careful touching probes to the business end of a RCA that is connected to the deck.  If you contact both the pos and neg with a probe you can quickly fry a crucial part of the deck.  If it's for the purpose of setting amplifier gain and you want to know where to set the gain according to markings, that's a notoriously bad idea.  You can't rely on vague markings around a gain dial to set this very important setting.  Forum search for setting gains

Or did you just want to troubleshoot the wire itself as ya boy mike guessed?



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Build the box so that it performs well in the worst case scenario and, in return, it will reward you at all times.




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