Hey Guys, Ive got an avic-n3 and I was getting terrible feedback through my 4 channel and my 2 channel. Bad alternator wine, pulsating when I brake. It was BAD. I had this problem once before with a pioneer deck, I sent it out to service and it was fine when it came back. It has absolutely nothing to do with grounds on the amps, rca's or anything to do with the amps. I replaced and re-replaced every peice of wiring in the car. I replaced my battery and alternator. I replaced my factory ground. Does anybody have any idea what goes wrong inside these pioneer that causes them to give that feedback? Is there anything I can do to fix it? Pioneer wants $200 just to look at it. I am MECP Advanced certified, and it drives me crazy not to know what this is. Anyways, Im babbling. Thanks for any info.
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Erick Day
MECP Advanced
Welcome to the world of Pioneer.
REMOVE YOUR BATTERY CONNECTIONS BEFORE YOU INSTALL OR CONNECT RCA's - ALWAYS, but most especially with Pioneer radios. It's crappy engineering, but they continue to use the same methods inside their radios.
And in case you are wondering, it *IS* the grounds...
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It all reminds me of something that Molière once said to Guy de Maupassant at a café in Vienna: "That's nice. You should write it down."
that pic is a very very clean install...'round these parts... wrap...tape...ground to radio chassis...i wish i could charge for solder ,fuse holders,normally are minimum labor...$10.00...and when we quote $39.00 ...i get that look...and usually followed by..."you cant even hear it when its turned up anyway" oh well...im sure this wont be your last and some will look at you like a god for removing that "awful hissing noise!' especially after doing what you did trying to get rid of it...
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M.E.C.P & First-Class
Go slow and drink lots of water...Procrastinators' Unite...Tomorrow!
offshorefisher wrote:
Does anybody have any idea what goes wrong inside these pioneer that causes them to give that feedback?
There is a surface mount fuse in the shield path of the RCA cables. As shown in the picture on the bottom of the page that Haem' posted. The reason the fuse opens is from one of the following: 1. A power wire touched the shield of the RCA cable. 2. Power and RCA was attached to an amp before the amp was grounded. As soon as the power wire is connected to an amp, (or any electronic device for that matter) it begins looking for a path to ground. When the RCA cable is plugged in, the amp says hey there is ground, you guys follow me. They head down that path only to find out it is limited by the fuse. So as stated above, disconnecting the battery before performing any work on your system, should prevent ths from happening.