big problem popping from speakers
Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=105668
Printed Date: May 05, 2024 at 11:40 AM
Topic: big problem popping from speakers
Posted By: bumpinexploder
Subject: big problem popping from speakers
Date Posted: June 24, 2008 at 8:26 PM
ok so today i got a new amp in, mono block for the subs. well i already had a jbl 4 channel hooked up to all 4 door speakers and they played perfect. well when i took the main power cabe. coming from the battery and put a distro block on it, i hooked it back up and there is popping and a hiss coming through the speajkers. they play but just with a loud hiss and constant popping. i thought it was the distro so i changed it out and nothin. i think it may be the rcas but i dont have the money or time to rerun them. i hope it is something differant. like i said it never did this but when i put the distro block in and re hooked it up the popping and hiss comes into play. please help me people. thanks! ------------- Pioneer DEH-400UB
Kicker 150.2 mids/highs amp
MB Quart fsa 216 front stage
AudioPipe gd-6001 mono amp
AUDIOQUE SD 15S PREFAB BOX!
C&D Technologies Battery, 1500 CCA, 134 amp storage
149.5 DB's
Replies:
Posted By: DYohn
Date Posted: June 24, 2008 at 8:50 PM
Did you disconnect the battery before you started messing with the power cable? It is possible you damaged the amp if it was still connected to power. Also, what else did you do to the system? Did you install the mono subwoofer amp? Does it work? ------------- Support the12volt.com
Posted By: i am an idiot
Date Posted: June 24, 2008 at 9:30 PM
Posted By: bumpinexploder
Date Posted: June 25, 2008 at 12:44 AM
well i remembered to un do the battery after the fact that there was a spark from my distros. its stinger 1 in 2 out, all wrapped in protective plastic, sitting on carpet. AND IT SPARKED! somehow. and melted the corner of the distro. dont know how it sparked. but how do i tell if i messed the amp up. it still lights up blue and plays music.???
-------------
Pioneer DEH-400UB
Kicker 150.2 mids/highs amp
MB Quart fsa 216 front stage
AudioPipe gd-6001 mono amp
AUDIOQUE SD 15S PREFAB BOX!
C&D Technologies Battery, 1500 CCA, 134 amp storage
149.5 DB's
Posted By: i am an idiot
Date Posted: June 25, 2008 at 7:57 AM
bumpinexploder wrote:
well i remembered to un do the battery after the fact that there was a spark from my distros
Is there a Pioneer deck in the dash of the bumpinexploder? Did you click on the blue line of my earlier post, and at least perform the test at the top of the page?
Posted By: DYohn
Date Posted: June 25, 2008 at 10:24 AM
Spark = oops, something likely broke. This is why you should never work on electrical components while they are powered. As "I Am" suggests, if you have a Pioneer (or Sony or Panasonic) head unit you could have damaged or blown a fuse in the preamp output ground plane, you could have damaged the input stage of the amplifier, you could have created an arc-path to ground, you could have done any number of possible things that have damaged your gear - you could have burned your truck to the ground. Basic installer techniques might have prevented this issue. Follow the trouble-shooting ideas linked above and if that's not it, get your vehicle in to a good shop so someone who knows what they are doing can check it out for you. ------------- Support the12volt.com
Posted By: i am an idiot
Date Posted: June 25, 2008 at 10:33 AM
If there is a visible arc on your Distribution block and it was caused by an RCA cable touching it, it doesn't really matter what kind of deck you are using. The ones DYohn mentioned do have more delicate shield paths inside the radio. But if the RCA jack was the cause of the arc, perform the test on the top of the page I posted earlier.
Posted By: bumpinexploder
Date Posted: June 25, 2008 at 11:48 AM
ok i havnt tried the rca thing becaus ei dont have a ohm meter like on that link. but i did read it and it is a good plan. also there is a pioneer HU. even though i have some problem here and there i wouldnt trade any pioneers i ever owned. i love there operating systems and features to much. lol but last time this happened it was the internal amp on the radio that blew. its under warrenty so i may have circuit city just throw another one in htere for me and see what that does.but i re ran the ground and it still pops and stuff. i will hook my mono block up today after work and ill see if it works. if so then its my jbl amp then i guess? sorry for the long post but thanks guys for helping me with this.
-------------
Pioneer DEH-400UB
Kicker 150.2 mids/highs amp
MB Quart fsa 216 front stage
AudioPipe gd-6001 mono amp
AUDIOQUE SD 15S PREFAB BOX!
C&D Technologies Battery, 1500 CCA, 134 amp storage
149.5 DB's
Posted By: bumpinexploder
Date Posted: June 25, 2008 at 8:58 PM
also, can the problem be the radio even though it still plays? last time i blew the internal amp and it didnt play at all. so im wondering if it can still be the radio or not. ------------- Pioneer DEH-400UB
Kicker 150.2 mids/highs amp
MB Quart fsa 216 front stage
AudioPipe gd-6001 mono amp
AUDIOQUE SD 15S PREFAB BOX!
C&D Technologies Battery, 1500 CCA, 134 amp storage
149.5 DB's
Posted By: i am an idiot
Date Posted: June 25, 2008 at 9:20 PM
If you touch 2 speaker wires together, you will take out the PAL007A output chip. If the output chip goes out then the speaker wires of the radio will not play. If you touch the shield of your RCA cable to your Distribution block, the speaker outputs will still work. The problem that you WILL experience after doing this is excessive noise through whatever amp you connect to that RCA cable, or possibly all of the cables, depending on the model of the radio.
Posted By: bumpinexploder
Date Posted: June 25, 2008 at 9:22 PM
i guess i may have touched 2 wires then. so i may have shorted out the rca output of the radio is what your saying? because i can call circuit city and have them replace it if it is.
-------------
Pioneer DEH-400UB
Kicker 150.2 mids/highs amp
MB Quart fsa 216 front stage
AudioPipe gd-6001 mono amp
AUDIOQUE SD 15S PREFAB BOX!
C&D Technologies Battery, 1500 CCA, 134 amp storage
149.5 DB's
Posted By: i am an idiot
Date Posted: June 25, 2008 at 9:33 PM
You touched 2 wires on your last radio. Not this one. You keep doubting that you have a problem because the last radio didn't have any sound when it broke. I was just telling you the difference between the 2 problems.
I am not saying that you shorted out your RCAs. I AM saying that you did exactly opposite of that. You opened a trace or blew a fuse on the circuit board of your radio. I know you said earlier that you regrounded it. I do not know if you tried the fix on the page that I posted earlier. Did you try that?
Posted By: bumpinexploder
Date Posted: June 25, 2008 at 9:36 PM
i know i have a problem im just tryin to narrow it down so when i do go in and explore i know what im looking for. so if i replace my radio, do i need to replace my rcas also? i dont know how to tell if they are good or not.
-------------
Pioneer DEH-400UB
Kicker 150.2 mids/highs amp
MB Quart fsa 216 front stage
AudioPipe gd-6001 mono amp
AUDIOQUE SD 15S PREFAB BOX!
C&D Technologies Battery, 1500 CCA, 134 amp storage
149.5 DB's
Posted By: i am an idiot
Date Posted: June 25, 2008 at 9:38 PM
I edited my last post after your last post. Your RCA cables are fine.
Posted By: bumpinexploder
Date Posted: June 25, 2008 at 9:42 PM
no i did not because i said i dont have an ohm meter to see if it is the problem. answer me this, if i get CC to replace it. should i go back in after and do that thing like on the link you posted or just let them put it in and go with it?
-------------
Pioneer DEH-400UB
Kicker 150.2 mids/highs amp
MB Quart fsa 216 front stage
AudioPipe gd-6001 mono amp
AUDIOQUE SD 15S PREFAB BOX!
C&D Technologies Battery, 1500 CCA, 134 amp storage
149.5 DB's
Posted By: i am an idiot
Date Posted: June 25, 2008 at 9:49 PM
You do not need an ohm meter to try the fix. If you do not have a soldering iron, just ground one end of the wire and touch the other end to the RCA cable, it will make a pop sound and the noise will go away.
But to answer your second question, If it were me, I would do the fix before I put a new radio in the car. You know how hungry those distribution blocks are.
Posted By: bumpinexploder
Date Posted: June 25, 2008 at 9:52 PM
yes your right. lol. ok if i do this you have to go slow and explain so i know 100 % wat im doin. so i... ground a small like 14 gauge wire or so to the frame where the radio sits? then touch it to the outer metal of the rca output on the radio or the actual RCAs while they are unplugged from the HU? and have the battery unplugged right?
-------------
Pioneer DEH-400UB
Kicker 150.2 mids/highs amp
MB Quart fsa 216 front stage
AudioPipe gd-6001 mono amp
AUDIOQUE SD 15S PREFAB BOX!
C&D Technologies Battery, 1500 CCA, 134 amp storage
149.5 DB's
Posted By: i am an idiot
Date Posted: June 25, 2008 at 10:12 PM
Yep do that and see if the noise goes away.
Posted By: bumpinexploder
Date Posted: June 25, 2008 at 10:33 PM
lol you said yes but i had a question in there. do i touch the outer part of the metal on the radio OR the rca cable itself
-------------
Pioneer DEH-400UB
Kicker 150.2 mids/highs amp
MB Quart fsa 216 front stage
AudioPipe gd-6001 mono amp
AUDIOQUE SD 15S PREFAB BOX!
C&D Technologies Battery, 1500 CCA, 134 amp storage
149.5 DB's
Posted By: bumpinexploder
Date Posted: June 26, 2008 at 11:19 PM
ok well update everyone!!! i fixed it! did some troubleshooting but somehow came acroos that if i put a small bare wire in between the rcas when they are hooked up the noise goes away. better than before the hissing started! i dont know what i dod but it worked! thanks for everyones input.
-------------
Pioneer DEH-400UB
Kicker 150.2 mids/highs amp
MB Quart fsa 216 front stage
AudioPipe gd-6001 mono amp
AUDIOQUE SD 15S PREFAB BOX!
C&D Technologies Battery, 1500 CCA, 134 amp storage
149.5 DB's
Posted By: DYohn
Date Posted: June 27, 2008 at 9:38 AM
bumpinexploder wrote:
ok well update everyone!!! i fixed it! did some troubleshooting but somehow came acroos that if i put a small bare wire in between the rcas when they are hooked up the noise goes away. better than before the hissing started! i dont know what i dod but it worked! thanks for everyones input.
What you did was create a ground path for the RCA shields because your head unit is damaged. Exactly what I Am was trying to lead you to. Your fix is temporary and your HU should be repaired... but hey, if you're happy leave it. And please learn from this about the importance of disconnecting the battery (or at least pulling your main power fuse) when you work on the electrical system. ------------- Support the12volt.com
Posted By: bumpinexploder
Date Posted: June 27, 2008 at 11:47 AM
yes dyohn i will. i usually do but i got in a hurry and it cost me. lol. if i get it fixed should i get the same one or maybe a new brand HU?
-------------
Pioneer DEH-400UB
Kicker 150.2 mids/highs amp
MB Quart fsa 216 front stage
AudioPipe gd-6001 mono amp
AUDIOQUE SD 15S PREFAB BOX!
C&D Technologies Battery, 1500 CCA, 134 amp storage
149.5 DB's
Posted By: bumpinexploder
Date Posted: June 27, 2008 at 11:49 AM
also. why did nothing happen when i grounded a wire and touch it to the rca output on the radio? nothing at all.
-------------
Pioneer DEH-400UB
Kicker 150.2 mids/highs amp
MB Quart fsa 216 front stage
AudioPipe gd-6001 mono amp
AUDIOQUE SD 15S PREFAB BOX!
C&D Technologies Battery, 1500 CCA, 134 amp storage
149.5 DB's
Posted By: i am an idiot
Date Posted: June 27, 2008 at 5:48 PM
DYohn] wrote:
p>Exactly what I Am was trying to lead you to.
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