Amp Won’t Get Out of Protect Mode
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=40213
Printed Date: May 19, 2024 at 8:17 PM
Topic: Amp Won’t Get Out of Protect Mode
Posted By: spootydlux4
Subject: Amp Won’t Get Out of Protect Mode
Date Posted: October 03, 2004 at 4:16 PM
ok i got done hookin up my friends stuff last night in his 99 gmc p'up. i put in a jvc cd player, a kole q2-980(ithink)amp and 2 12" power acoustics. well i wired everything right but when i go to plug the rca's in , it immediately goes on protect. the rca's only have to touch the amp input and the protect light comes on. the only reason i can think of is because i used a 4g power and an 8g ground, can this be the cause? if it is can i use some of the remaining power wire as my ground?
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Replies:
Posted By: jeffchilcott
Date Posted: October 03, 2004 at 5:33 PM
well first off i wouldnt plug the rca's in while the amp is on that would cause protect of some amps. rule of thumb is to use the same size ground as u use for power wires and keep it under 3ft I try to stay under 1ft personally but it all depends. I would re ground the amp plug in the rca's then see if it turns on....also try unplugging your speakers completly from the amp and see if it turns on. How do you have them wired? this should get you on a start to finding the problem
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2009 0-1000 Trunk WR 154.0DB 2009 1001+ Trunk WR
2007 USACI World Champion
2007 World Record
2006 USACI Finals 2nd Place
Posted By: kidtransam
Date Posted: October 03, 2004 at 8:37 PM
If your rcas are grounded somewhere (scraped or something) it will cause the amp to go into protection..Unplug the rcas from the amp and from the radio..run a temp rca (dont install it) just run it from the head unit to the amp..if it still goes into protection...its not the rcas. Unhook the subs..and reattach the rcas..if it stops its the subs..if it still comes on..its prob in the head units outputs.
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With a torch and a big enough hammer...it WILL friggin fit!!
Posted By: Rushman
Date Posted: October 03, 2004 at 10:19 PM
are those 12 power acoustics DVCs?
Posted By: spootydlux4
Date Posted: October 04, 2004 at 6:44 PM
no rushman, their svc. but it would be alright to use my left over power wire for my ground?
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Posted By: Rushman
Date Posted: October 04, 2004 at 7:03 PM
absolutely yes , as long as its the same guage as the power wire or bigger.
Posted By: forbidden
Date Posted: October 04, 2004 at 7:06 PM
<cringes> yes <shakes head>  Doing this leads to more problems that you could ever think. While it is OK to do it, it is very very easy to get those wires mixed up if you work on the system. I do not recommend this. If you are going to do this, at least black tape the ground wire to ensure that it is noticeably the ground wire. ------------- Top Secret, I can tell you but then my wife will kill me.
Posted By: Rushman
Date Posted: October 04, 2004 at 7:14 PM
you are correct forbidden as far as color codes go but Im assuming that the guy is smart enough to keep an eye on the one ground wire. Im sure weve all been in a pinch before and had to subsitute wires before. I like to use designated wires as much as possible but when he's down to just one single ground wire that can make or break the system , Im sure using a few feet of red wire will do untill he can get to the store or where ever to get BLACK wire.
Posted By: jeffchilcott
Date Posted: October 04, 2004 at 9:14 PM
ahhh even i have mees up and hooked up the ground and power backward from doing this luckyly I didnt fry the amp...i would take the extra 10 seconds and cover the wire in tape like forbidden said you'll kick your self if something goes wrong
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2009 0-1000 Trunk WR 154.0DB 2009 1001+ Trunk WR
2007 USACI World Champion
2007 World Record
2006 USACI Finals 2nd Place
Posted By: spootydlux4
Date Posted: October 04, 2004 at 9:21 PM
yes i know what i am doing though im still a novice, my 16 year old self probably knows more than our local car audio shop. But i will wrap it anyway since its going in a friends truck. thanks guys
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Posted By: stevdart
Date Posted: October 04, 2004 at 9:30 PM
Absolutely essential to wrap that wire in black if it's not your car. Slip a black loom over it when the install is over and done with to hide the tape and give a nice finished appearance.
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Build the box so that it performs well in the worst case scenario and, in return, it will reward you at all times.
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