Amp problem... (Low_e & mSaLL)

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Old Dec 10, 2008 | 10:25 PM
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Amp problem... (Low_e & mSaLL)

I hooked up my JL 500/1 tonight and I can't get it to turn on. I know for a fact everything is connected properly and I do have a good ground connection. I just took out the Eclipse amp the other day and simply hooked the wires back up tonight. At first I thought it was the remote wire so I temporarily jumped a wire from +12v to the remote wire connection and still got nothing. Any ideas? Hopefully this amp isn't toast.
 
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Old Dec 10, 2008 | 10:46 PM
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Did you unhook the (-) batt terminal before doing this? Check your fuses.
 
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Old Dec 10, 2008 | 10:54 PM
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Originally Posted by mSaLL150
Did you unhook the (-) batt terminal before doing this? Check your fuses.
I almost forgot to, but I did unhook it before connecting anything. The Slash series amps are not fused at the amp -- only the fuse in the 4awg power wire at the battery and it is good. I changed it just to be sure but still get nothing.

I did forget to unhook the (-) terminal once before a long time ago installing an Audiobahn amp back in high school. Everything was fine afterwards though. I realize you would want to unhook it when running power wire due to the risk of shorting out but what's the real purpose of doing this when connecting an amp? I know it's a stupid question but just thought I'd ask.
 
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Old Dec 10, 2008 | 10:57 PM
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To be honest, Low will have a better answer for you. I'm not the best when it comes to trouble-shooting these things.
 
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Old Dec 10, 2008 | 11:01 PM
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Originally Posted by mSaLL150
To be honest, Low will have a better answer for you. I'm not the best when it comes to trouble-shooting these things.
That's cool. I appreciate the help though!
 
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Old Dec 10, 2008 | 11:12 PM
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This is what happened when I checked everything with a meter:

~ I first removed the power and ground cables from the amp and checked them to make sure everything was connected good leading up to the amp. It was all fine so I know I have good power/ground to the amp.

~ Then I checked the +12v and (-) terminals on the amp and that checked out fine as well.

~ Last I checked between the (-) terminal and the remote turn on terminal to confirm I was getting voltage with the head-unit on and I was.

I'm stumped because I figured if the amp has a power problem then I shouldn't be getting an audible sound from the meter when testing for continuity between the (+) and (-) terminals on the amp with no power or ground wire connected.
 
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Old Dec 11, 2008 | 01:56 AM
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put the eclipse back and and return that 500/1. I'm not a fan of a amp I can't use lower ohms to pull more power out of.
 
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Old Dec 11, 2008 | 03:59 AM
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Originally Posted by 08FX4
This is what happened when I checked everything with a meter:

~ I first removed the power and ground cables from the amp and checked them to make sure everything was connected good leading up to the amp. It was all fine so I know I have good power/ground to the amp.

~ Then I checked the +12v and (-) terminals on the amp and that checked out fine as well.

~ Last I checked between the (-) terminal and the remote turn on terminal to confirm I was getting voltage with the head-unit on and I was.

I'm stumped because I figured if the amp has a power problem then I shouldn't be getting an audible sound from the meter when testing for continuity between the (+) and (-) terminals on the amp with no power or ground wire connected.
12v's at the B+ correct?
Close to 0 ohms at the ground?
RCA's good?
12v's at the REM correct?
No shorts in the spk wire?
No short on the Spk coils?

But you shouldnt be showing any audible warning via checking continuity on the power to ground. Sounds like an amp short. Are you blowing fuses?
 

Last edited by Low_e_Red; Dec 11, 2008 at 04:03 AM.
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Old Dec 11, 2008 | 11:20 AM
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I just quoted your message and posted in it for ease:

Originally Posted by Low_e_Red
12v's at the B+ correct?
~ Yep.

Close to 0 ohms at the ground?
~ Yep.

RCA's good?
~ Yep.

12v's at the REM correct?
~ Yep.

No shorts in the spk wire?
~ Nope.

No short on the Spk coils?
~ No sub connected.

But you shouldnt be showing any audible warning via checking continuity on the power to ground. Sounds like an amp short. Are you blowing fuses?
~ I'm not blowing fuses. I thought I blew the first one but after visually inspecting it and testing it with the meter I know I didn't. I don't have my steatlhbox connected to it yet. I was going to adjust the gains properly with the meter (as per JL's instructions) and I'm not getting any output to the speaker-outs due to the amp not turning on; that's when I knew something was wrong.
 
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