How to Ground your H/U's rca's *pics* - Realm of Excursion



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Old 06-02-2007   #1 (permalink)
 
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Default How to Ground your H/U's rca's *pics*

ok many people have been asking about this so i took some pics and stuff how i did it , it is very very simple and a fix to low rumbling squelling and the noise of the motor spinning the cd in your head unit (mostly older pioneer models)


ok first tools and supplies


next you take a short peice of Wire and strip it (dont take too much off just enough to fit into the rca, you dont want it to touch the center part ) and bend it into a l shape

put the wire in the RCA like so

slowly put the RCA in the H/U



then find screw on the H/U's housing and attach the wire

the finshed product

*PS*this should be done to every rca output on the H/U both left and right of each output, im glad to be a help for anyone wondering how in the hell you ground your rca's
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Old 06-02-2007   #2 (permalink)
 
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nice job homey. or you can just rip apart the cd player and actually fix the problem, but i wouldnt suggest that the average Joe try that, or soundwave dave, or hats, or a few others. (idiots)
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Old 06-02-2007   #3 (permalink)
 
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lol , it can be done, its the same thing as shown just not as basic as this , just solder the Wire from the inside and ground it inside th H/U, or get the $36 fuse from pioneer...... , or if your under warranty send it in and they will replace the fuse/board.


IT DOSNT TAKE A SCIENCE ROCKET TO DO THIS !
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Old 06-02-2007   #4 (permalink)
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and what exactly is the point of this?
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Old 06-02-2007   #5 (permalink)
 
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i believe this deserves a sticky
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Old 06-02-2007   #6 (permalink)
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never had this problem myself tho
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Old 06-02-2007   #7 (permalink)
 
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it is to fix the fuse to the rca outputs being blown, without spending any money, as far a sticky i think so too , it will put an end to the low rumbles and pops of the old pioneer H/u's all over the world
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Old 06-02-2007   #8 (permalink)
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the rca's have a fuse...so if you have a weak ground somehwere in your system or get large voltage drops then the fuse blows...therin not allowing the rca's to ground at the head unit anymore so they must ground at the amp. all that signal going through the rca's creates a serious ground loop.
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Old 06-02-2007   #9 (permalink)
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Thanks saturn, not only does pioneer do this but my clarion HU does it also. Odd I guess but anyways thanks!
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Old 06-02-2007   #10 (permalink)
 
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X2 on the ground and voltage drops mine blew becasue of not enough grounds for my H/U i rushed and only had one ground and it was the factory ground , run a body ground or even a direct - battery ground along with the factory ground
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Old 06-04-2007   #11 (permalink)
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I have an alpine iva c800 indash monitor/cd player, i have a slight pop when i turn it off, and maybe a little whine when it is playing. all of my rca's are ran good, there only about 4' long, and not near any wires, grounds are good, and Power wires are good, plus my unit has a stand alone brain, and it is mounted behind my rear seat away from anything that could cause it to pick up any noise. think i should do this?
actually sounds kind of like doing the big 3, you may not need it, but it is so easy, and could possibly help, so why not.
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Old 06-04-2007   #12 (permalink)
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Actually my JVC avx2 is making a whining noise from my rear speaker. I am gonna try this tonight and see how I make out.
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Old 06-04-2007   #13 (permalink)
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i can tell you it works great
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Old 11-05-2007   #14 (permalink)
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i just did it more or less like this today on my prs and worked great...Just the prs has the pigtail for the rca's so its a good bit more painful because of that..

Just figured i'd add this pic i found for reference.
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Old 12-19-2007   #15 (permalink)
 
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i can't beleive people still use cd players i love my ipod
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Old 12-19-2007   #16 (permalink)
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Quote:
Originally Posted by kelwintodd View Post
i can't beleive people still use cd players i love my ipod
you still need the headunit for the signal output

anyway, that is a much simplified version above, you could do it all internally just as easy.
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Old 12-19-2007   #17 (permalink)
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i had to do this on my old Premier 670.. but no problems at all on my 880prs...
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Quote:
Originally Posted by profundus-sanus View Post


i just did it more or less like this today on my prs and worked great...Just the prs has the pigtail for the rca's so its a good bit more painful because of that..

Just figured i'd add this pic i found for reference.
You should never HAVE TO do that. The shield is grounded internally on both the amp and the headunit. If you have to ground your RCA's there is most likely something wrong with the headunit or its a piece of sht. Sometimes the problem is the RCA's themselves or the amp but generally its the headunit. Older Pioneers are known for having to ground the RCA's. I don’t know why you have to but I know Pioneers ***ed up on something with them because you should never have to do that.
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Old 12-19-2007   #19 (permalink)
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No doubt, but if it helps, then why not lol. I mean it won't hurt anything, just give the ground a lower impedance path. Not a bad thing IMO. I think they did it because some kind of internal fuse blew ? IDK why the ground would be fused not the signal...?



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Old 12-19-2007   #20 (permalink)
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No doubt, but if it helps, then why not lol. I mean it won't hurt anything, just give the ground a lower impedance path. Not a bad thing IMO. I think they did it because some kind of internal fuse blew ? IDK why the ground would be fused not the signal...?
Exactly.. The fuse blows when there's a voltage differential, whether it be on the signal or ground. for some reason they put a fuse where a resistor should be.... thats the way it is with almost any other head unit.

The real fix is tearing the h/u down and soldering a small 1 ohm resistor in place of the fuse..
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Old 12-19-2007   #21 (permalink)
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i had that problem for a while, i ended up grounding the rca cables to the headunit. it worked good after that
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Old 12-19-2007   #22 (permalink)
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Exactly.. The fuse blows when there's a voltage differential, whether it be on the signal or ground. for some reason they put a fuse where a resistor should be.... thats the way it is with almost any other head unit.

The real fix is tearing the h/u down and soldering a small 1 ohm resistor in place of the fuse..
Wow thats stupid! Why would they do that? I can see the signal and ground both having fuses, but then why would just the ground blow. Seems like a poor design to me. I guess it does protect the amp from excesive current being drawn through the RCA ground.



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iv never had an issue with any of my pioneer hu's...hummm hope i never do lol
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Old 12-19-2007   #24 (permalink)
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Would this work on the input for my amplifier that seems to have a bad rca input? Would this make it work? It seems like it was only getting signal from the left side and not the right.
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what kinda amp u got?
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