amp ground wire shows power

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tbyrd200

Member - Posts: 22

Joined: November 26, 2005

Location: United States

Posted: August 09, 2009 at 10:52 AM / IP Logged

The amp will not come on at all, and it has power. When I turn on the HU the ground wire to the amp shows that it is powered, when the HU is switched off it goes back to ground. The amp has been working fine until this week.

Thanks,

Ted

mike swanson

Copper - Posts: 290

Joined: January 28, 2003

Location: United States

Posted: August 09, 2009 at 12:47 PM / IP Logged

Its prolly the amp. Amps like to fry from heat where power and ground connect. if it had a powere or ground issue?

Like not enough power or bad ground. remote wire pinched???

So the amp gets hot and melts the terms together inside or outside the amp.

Prolly inside the solder melted together.

jimi77

Member - Posts: 27

Joined: August 10, 2009

Location: Colorado, United States

Posted: August 10, 2009 at 1:17 AM / IP Logged

tbyrd200 wrote:

Thanks,

Ted

You probably didn't melt any solder or you'd (probably) notice melted connections, burn wire, etc. Something has shorted inside the amp in the power supply.

You talking to me???

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vibrationcustum

Copper - Posts: 171

Joined: April 05, 2009

Location: Michigan, United States

Posted: August 10, 2009 at 2:22 AM / IP Logged

mike swanson wrote:

Its prolly the amp. Amps like to fry from heat where power and ground connect. if it had a powere or ground issue?

Like not enough power or bad ground. remote wire pinched???

So the amp gets hot and melts the terms together inside or outside the amp.

Prolly inside the solder melted together.

I like this answer, I have seen alot of this and fixed alot of amps that had this problem. Most of the time is it is the plastic that melts and makes the connections hit. All you got to do is take the cover off the amp and see it the bottom or top of the amp is burn or melted. If so let us know and I or someone can lead you through it on how to fix it if you don't know how too.

Can't be loud then don't have it.

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i am an idiot

Platinum - Posts: 13,667

This member consistently provides reliable information

Joined: September 21, 2006

Location: Louisiana, United States

Posted: August 10, 2009 at 6:21 AM / IP Logged

You have a bad connection where your ground wire is connected to the chassis of the vehicle. The ground is connected well enough to show a ground when there is no current being pulled through it. When you turn the amp on, it tries to pull a little current and it can not provide the current. That is why it is showing power. Check to make sure the ground connection is tight at the amp and at the connection point of the vehicle.

Let's Go Brandon Brown. Congratulations on your first Xfinity Series Win. LGBFJB

jimi77

Member - Posts: 27

Joined: August 10, 2009

Location: Colorado, United States

Posted: August 10, 2009 at 9:01 AM / IP Logged

vibrationcustum wrote:

mike swanson wrote:

Its prolly the amp. Amps like to fry from heat where power and ground connect. if it had a powere or ground issue?

Like not enough power or bad ground. remote wire pinched???

So the amp gets hot and melts the terms together inside or outside the amp.

Prolly inside the solder melted together.

Huh? I used to repair amps and I've never seen solder melt inside them or burn up plastic inside an amp. In general there isn't much plastic to burn up inside the amp.

You talking to me???

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KPierson

Platinum - Posts: 3,527

Joined: April 14, 2005

Location: Ohio, United States

Posted: August 10, 2009 at 10:32 AM / IP Logged

i am an idiot wrote:

That was my first thought as well - I would check the ground and make sure it is making a solid connection.

Kevin Pierson

heedless619

Member - Posts: 14

Joined: September 21, 2009

Location: California, United States

Posted: September 21, 2009 at 3:22 PM / IP Logged

I experienced the same problem Yesterday after replacing my ground wires to 4 gauge. I also distributed the ground wires to one point, could this be the reason? I did it before with the 8 gauge but it works great with little noise.

I found out the ground shows power because everytime I turn on the headunit, my fuse would blow! forgot to mention, I'm new here and in need of help! I want to make sure I could still use the amp before I buy another one! Thanks and sorry for Thread jacking!

hungry_eye

Member - Posts: 14

Joined: August 09, 2009

Location: Manitoba, Canada

Posted: September 21, 2009 at 5:35 PM / IP Logged

Get yourself another amplifier. Wire it up and see if it replicates the issue. If it does, you kow there is something wrong with your insatall; if not, you have a faulty amp.

heedless619

Member - Posts: 14

Joined: September 21, 2009

Location: California, United States

Posted: September 21, 2009 at 6:26 PM / IP Logged

hungry_eye wrote:

Get yourself another amplifier. Wire it up and see if it replicates the issue. If it does, you kow there is something wrong with your insatall; if not, you have a faulty amp.

Good idea, I'm worried it might fry that one tho!! I might try the amp on another car to see what happens. I'm just hoping I don't have to buy another amp! Thanks.

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