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| ebEB |
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I had a pioneer 300watt 2 channel amp running 2 pioneer 6x9 speakers with no problems. I have recently changed the 300watt amp for a 800watt 4 channel amp to the same speakers and now have alternator whine. I went to Jaycar purchased inline noise filter and RCA noise filter and an alternator suppressor and the noise is still there. Took that back and bought new RCA wires and earth cable and still no change. Swapped back to 300watt amp and the noise is still there. Now happens with any amp used. What can i do to stop it?? Many thanks in advance.
Sad EB Owner |
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| Interceptor |
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sounds like you may have blown the RCA earths in your HU
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| ebEB |
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ohhhhh dont say that!!! i just baught the head deck on boxing day!!!
is there a way i can find out for sure? thanks heaps interceptor |
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| ebEB |
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also i still have music coming through the amp but its been rob'd... if ya know what ii mean
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| Interceptor |
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do you have a multimeter?
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| ebEB |
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i do at 12 tomoro...
please do go on.... 
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| fordgt290 |
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dont rule out the fact ur alt may be causing the noise from the hard amps it would have had to be producing. so possible one of the diodes has burnt out.
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| ebEB |
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Quote: ordgt290
PostPosted: Wed Feb 08, 2006 8:44 pm Post subject: dont rule out the fact ur alt may be causing the noise from the hard amps it would have had to be producing. so possible one of the diodes has burnt out. is there a way of testing???? i did try a supressor?!?! so you think i might need a new alt? i also tryd a earth cabel to the battery as well with no help whatso every to the sound.. 
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| Interceptor |
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just out of curiousity, you didnt have your system running while you were messing around with the amps (prior to the noise problem starting?)
i had to cure the same problem recently, had supressors on alternator and coil, but nothing except an RCA earth link fixed the problem before you do it though, check and see if the outer contact on the RCA's on the back of your HU and see if they've still got a solid link to the chassis of your HU, if its an open circuit, your RCA earths are blown
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| ebEB |
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bugger.... i think the RCA earths are blown then!!
any one want to bye a head deck? how do i do it with a multimeter? im in the market for a pioneer DEH-P5750MP, they any good? F**k im pised off! not a happy chappy... thanks guys
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| ElwoodBlues |
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Wouldnt things like that be covered under manufactures warranty?
_________________ EF Futura factory 5 spd
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| concorde |
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how close are your positive power cables running next to your RCA leads?
i had a USAudio amp with no noise, than i changed it to a Jaycar and had heaps of noise. moved the power cables away from the RCA's and all was fixed.
_________________ 2nd Place Summernats19 SQ Comp, Street Pro 0-600 Class
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| ebEB |
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Quote: concorde PostPosted: Thu Feb 09, 2006 9:18 am Post subject: how close are your positive power cables running next to your RCA leads? i had a USAudio amp with no noise, than i changed it to a Jaycar and had heaps of noise. moved the power cables away from the RCA's and all was fixed. the RCA's are one the left of the car and the power cable is on the drivers side of the car.... Quote: ElwoodBlues
PostPosted: Thu Feb 09, 2006 7:47 am Post subject: Wouldnt things like that be covered under manufactures warranty? i have all the papers and book, so i should look up and sort it out. how long would it take for this kind of thing to be fixed do you reckon?, i cant really do with out clear noise in my ears, not this wak hummmmmmmmmmmmmmmmmmm crap im coping with... oh i need a drink bad.... fkn sterios... thanks people... i think i might go down and get a new head deck tonight, and get the other one fixed... thanks people... cheers, Strech.
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