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Crazy whine. Need help ASAP
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<blockquote data-quote="IDSkoT" data-source="post: 7229245" data-attributes="member: 584344"><p>There are a lot of tutorials on how to fix this. It usually happens with Pioneer head units.</p><p></p><p>The Picofuse is actually a small resistor inside of the unit. When you hot swap the RCA's, it overpowers the resistor and blows it causing an open circuit between the two polarities of the RCA.</p><p></p><p>The easiest fix is to solder / wrap bare wire around each RCA shield (the outer most metal part. Some RCA's have a plastic shielding. You can cut this off with a razor to reveal more shielding.), and then ground it to the chassis of the head unit. Make sure you do it well, and not half-***<em>e</em>d.</p><p></p><p>I had to re-do mine a few times back when it originally happened due to shoddy work and me being in a rush.</p><p></p><p>I took my time, soldered the wire onto the shield, wrapped it tightly with a nice little Boy-Scoutesque not and grounded them to a random screw on the back of my unit. I haven't had a problem in over 3-1/2 years.</p></blockquote><p></p>
[QUOTE="IDSkoT, post: 7229245, member: 584344"] There are a lot of tutorials on how to fix this. It usually happens with Pioneer head units. The Picofuse is actually a small resistor inside of the unit. When you hot swap the RCA's, it overpowers the resistor and blows it causing an open circuit between the two polarities of the RCA. The easiest fix is to solder / wrap bare wire around each RCA shield (the outer most metal part. Some RCA's have a plastic shielding. You can cut this off with a razor to reveal more shielding.), and then ground it to the chassis of the head unit. Make sure you do it well, and not half-***[I]e[/I]d. I had to re-do mine a few times back when it originally happened due to shoddy work and me being in a rush. I took my time, soldered the wire onto the shield, wrapped it tightly with a nice little Boy-Scoutesque not and grounded them to a random screw on the back of my unit. I haven't had a problem in over 3-1/2 years. [/QUOTE]
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