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Wiring, Electrical & Installation
Rca failure
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<blockquote data-quote="Jepalan" data-source="post: 8396549" data-attributes="member: 655519"><p>Most common failures are due to mechanical stress and vibration. Most RCA jacks are PCB mounted and not mechanically anchored to the chassis itself. So it is just the solder and circuit board pads that hold them in place.</p><p></p><p>If you push too hard on the RCA you can lift a pad or crack a trace.</p><p></p><p>If the amp and RCA cable are not mounted solidly together then over time vibration can pop a pad or crack a trace as well.</p><p></p><p>So 1) Do not push too hard when making connections and 2) anchor cable to amp and amp to car very well.</p><p></p><p>Less common is an electrical failure due to ground currents flowing through the RCA shield connection due to the amp, head-unit or other device in the chain not being properly grounded.</p><p></p><p>Crappy cables would be another failure, but not really a failure of the amp input itself.</p><p></p><p>I think that just about covers it.</p></blockquote><p></p>
[QUOTE="Jepalan, post: 8396549, member: 655519"] Most common failures are due to mechanical stress and vibration. Most RCA jacks are PCB mounted and not mechanically anchored to the chassis itself. So it is just the solder and circuit board pads that hold them in place. If you push too hard on the RCA you can lift a pad or crack a trace. If the amp and RCA cable are not mounted solidly together then over time vibration can pop a pad or crack a trace as well. So 1) Do not push too hard when making connections and 2) anchor cable to amp and amp to car very well. Less common is an electrical failure due to ground currents flowing through the RCA shield connection due to the amp, head-unit or other device in the chain not being properly grounded. Crappy cables would be another failure, but not really a failure of the amp input itself. I think that just about covers it. [/QUOTE]
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