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Altenator Noise, question for Audio buffs... 

 

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 Post subject: Altenator Noise, question for Audio buffs...
Posted: Sat Oct 20, 2007 6:43 pm 
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Hey there,
Im getting alternator noise from my speakers, but the thing is, the power and rca cables are running either side, so it can't be that,
main problem is, the noise comes and goes, and only comes out of the front drivers side speaker, along with some crackling noises.
Can someone guide me into what is the problem?
thanks
- Ash

 

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Posted: Sat Oct 20, 2007 7:25 pm 
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RCA Earth fuse inside the HU.

 

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Posted: Sat Oct 20, 2007 7:33 pm 
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braidy wrote:
RCA Earth fuse inside the HU.


Most head units don't have RCA fuses that I have seen.
I would be checking the integrity of the rca cables and also the grounding of the head unit....

 

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Posted: Sat Oct 20, 2007 9:31 pm 
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What type of unit is it? Pioneer?

And I have seen this happen to many a unit.

 

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Posted: Sun Oct 21, 2007 2:46 am 
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mate, i work at pioneer, if its one of our hu's its blown the rca fuse, usually due to an improperly grounded amp. a bad ground will force the amp to source ground through the headunit. that will give you a hell of alot of altinator noise. it happens alot with our units due to bad wiring!

 

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Posted: Sun Oct 21, 2007 10:43 am 
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braidy wrote:
What type of unit is it? Pioneer?

And I have seen this happen to many a unit.


I have never heard of this happening with any other brand other than Pioneer...

 

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Posted: Sun Oct 21, 2007 1:08 pm 
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outlawxr6 wrote:
braidy wrote:
What type of unit is it? Pioneer?

And I have seen this happen to many a unit.


I have never heard of this happening with any other brand other than Pioneer...


I meant many a Pioneer unit.

 

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Posted: Sun Oct 21, 2007 1:57 pm 
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I know and that was my point that it seems to be Pioneer units that have these fuses....

 

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Posted: Mon Oct 22, 2007 3:42 pm 
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Hey, yeah it is a pioneer head unit, but its a dvd screen one, i've heard plenty of altenator noises in cars, but this one seem to ONLY be coming from the front RHS speaker, and is off and on, which i can't fathem why its doing it, and its only just started....
thanks
- Ash

 

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Posted: Mon Oct 22, 2007 7:56 pm 
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revers the rcas at both ends and see if the noise is still on the same side....

 

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Posted: Mon Oct 22, 2007 8:28 pm 
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To test the RCA ground rail fuse, get a piece of wire, and wedge it in the ring of the RCA outputs of the headunit. Run the other end to ground. See if that fixes the problem.

 

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Posted: Wed Oct 24, 2007 10:30 pm 
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Thanks guys for that, i'll have to get to it soon,
I figured out the crackling and cutting out noise, the RCA's that go into the amp are dodgy, their a good brand, but I think all the connections are loose, gonna have to re-soilder the connections from the wire to the RCA jack as their not soo good.
Put back my Alpine amp, instead of the pioneer one,.....my god does it kick :)

 

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