Jp23 amp. Pos wire touched ground

[some dude]

I wired my jp23 with a small jumper wire in the positive terminal that I would use to turn the amplifier on manually until I wired up a remote switched wire.
My GF was trying to put remote wire in and accidentally touched ground.
She said it just sparked once. The 60amp fuse for the amplifier sagged but didn't pop.
Amplifier is in protect mode.

Any tips on something I can try to remedy this situation or is a repair shop the only answer?

Click to read more...

 

[Buck 5,000+ posts]

Replace the fuses completely and see if it works, if it doesn't, you've fried something almost certainly. Done it myself, it happens. Almost too easy to do sometimes. Be very careful if you do that, there may be a short in the amp that could get worse. Idk about a warranty or anything on the amp, but you could take the panel off and see if it's burned anywhere on the board.

 

[Clifff150 10+ year member]

Change the fuses and see what happens. If still nothing then just contact D4S and see if they can help you. Accidents happen unfortunately. I did the same with my Diamond amp and luckily one of the external fuses popped and it was a easy fix and still works like a charm.

 

[Buck 5,000+ posts]

Change the fuses and see what happens. If still nothing then just contact D4S and see if they can help you. Accidents happen unfortunately. I did the same with my Diamond amp and luckily one of the external fuses popped and it was a easy fix and still works like a charm.

I did it once on a brand new amp that was somebody else's and fried it right in front of the customer, LOL. Oh man, "what happened Buck?" eeerrrrrrrrrrrrrrrrrrrrrr "sorry boss" LOL

 

[ciaonzo 5,000+ posts]

There's usually large diodes on the power input section to protect against something like this. You could give those a look.

 

[Deiimos]

Yeah swap the fuse with a new one and see what happens, I’ve seen fuses that look reasonably okay not work, and if it looks questionable, it might just be. Having a cheap volt meter helps troubleshooting, even a Harbor Freight cheapie would be better than nothing for quick voltage / resistance tests.

I’m trying to understand how shorting the main power wire to ground would fry the amp. Seems you had a small wire connected to the power terminal and would insert it into the remote terminal to turn it on? I did amp repair for some years, did that all the time for testing (I don't recall if I ever shorted to ground, but probably) and as long as she didn’t wire the amp backwards entirely, it shouldn’t hurt anything shorting the "power wire" to the ground wire, other than possibly damaging fuse at battery. Now if you shorted a speaker terminal to B+, or B+ to RCA shields, that’s a different story and can hurt amps.

I guess I’m just trying to understand exactly what happened.

At any rate, hope its just the fuse.

 

[Clifff150 10+ year member]

Did you get the amp signed? If so, that might be the problem....

 

[Kickstand Premium Member]

There is some sort of joke about letting the GF touch the car here but I can't quite put my finger on it

 

[some dude]

Yeah swap the fuse with a new one and see what happens, I’ve seen fuses that look reasonably okay not work, and if it looks questionable, it might just be. Having a cheap volt meter helps troubleshooting, even a Harbor Freight cheapie would be better than nothing for quick voltage / resistance tests.

I’m trying to understand how shorting the main power wire to ground would fry the amp. Seems you had a small wire connected to the power terminal and would insert it into the remote terminal to turn it on? I did amp repair for some years, did that all the time for testing (I don't recall if I ever shorted to ground, but probably) and as long as she didn’t wire the amp backwards entirely, it shouldn’t hurt anything shorting the "power wire" to the ground wire, other than possibly damaging fuse at battery. Now if you shorted a speaker terminal to B+, or B+ to RCA shields, that’s a different story and can hurt amps.

I guess I’m just trying to understand exactly what happened.

At any rate, hope its just the fuse.

You got it right. A small jumper wire screwed in with the main power wire that I would insert in the remote terminal. I replaced the sagging fuse (distribution block, 60amp) and no change. The main fuse near battery is 350amp I believe (didn't change that).
Jp23 sits in protect. Interior speaker amp works fine.
I wasn't there when it happened. I might have her show, but from what she said I'm figuring my jumper wire touched ground briefly.

 

[some dude]

Did you get the amp signed? If so, that might be the problem....

Yeah, no signature. I find that stuff silly too.

 

[Clifff150 10+ year member]

I was under the impression those had external fuses. That stinks.

 

[AnthonyO 10+ year member]

Yeah unfortunately she found out the hard way. I always remove the fuse to my battery when messing with my amps. I have been in car audio for over 30 years, I can admit, I have done it once or twice.

 

[Clifff150 10+ year member]

Yeah unfortunately she found out the hard way. I always remove the fuse to my battery when messing with my amps. I have been in car audio for over 30 years, I can admit, I have done it once or twice.

Agreed. I always remove the fuse in the distro block if I’m messing with my amps. Sometimes you gotta learn the hard way lol

 

[audiobaun 5,000+ posts]

You got it right. A small jumper wire screwed in with the main power wire that I would insert in the remote terminal. I replaced the sagging fuse (distribution block, 60amp) and no change. The main fuse near battery is 350amp I believe (didn't change that).
Jp23 sits in protect. Interior speaker amp works fine.
I wasn't there when it happened. I might have her show, but from what she said I'm figuring my jumper wire touched ground briefly.

Sounds like she grounded out the Remote-power/jumper wire to the main ground wire/. That will blow the power supply. You will need to have that amp repaired, or replace the amplifier.

 

[Spike0358]

Do any of yaull know if the jp23 amplifier is all of the speaker outputs connected inside of the amplifier, or do you have to connect each subwoofer to both outputs? Seems like I'm not getting full power. I have (2) Skar sdr 12's hooked up to it, in the pre-fab box already wired up to 1-ohm. Only has 2 wires coming out of the terminal, one positive, one negative, both subs are connected inside of the box. Maybe both need to be connected separately to the 2 channels for full power, IDK. set my gain with a multimeter, 34-35 and I have to turn the bass knob all way up to get the output that my Pioneer gm9701 done with its bass knob on zero. Any ideas appreciated.

 

[ThatChevyGuy 5,000+ posts]

Do any of yaull know if the jp23 amplifier is all of the speaker outputs connected inside of the amplifier, or do you have to connect each subwoofer to both outputs? Seems like I'm not getting full power. I have (2) Skar sdr 12's hooked up to it, in the pre-fab box already wired up to 1-ohm. Only has 2 wires coming out of the terminal, one positive, one negative, both subs are connected inside of the box. Maybe both need to be connected separately to the 2 channels for full power, IDK. set my gain with a multimeter, 34-35 and I have to turn the bass knob all way up to get the output that my Pioneer gm9701 done with its bass knob on zero. Any ideas appreciated.

might want to make your own post in help section for best results.

The jp23 is a single channel amp, both + and both - speaker output terminals are internally connected just gives space for like multiple woofers and cannot fit all wires in single pos and single neg terminals

 

[Spike0358]

might want to make your own post in help section for best results.

The jp23 is a single channel amp, both + and both - speaker output terminals are internally connected just gives space for like multiple woofers and cannot fit all wires in single pos and single neg terminals

Ok well DARN! This amplifier disappoints. My Pioneer 9701 takes a 150 amp fuse, this jp23 takes a 200 amp fuse. Maybe I got a bad amplifier, it sure doesn't push the (2) Skar sdr 12's that good. I know I won't be putting my new Skar VXF 12's on the jp23, that was the main reason I purchased it.

 

[Clifff150 10+ year member]

Do you have them wired correctly? That amp will push out way more than that pioneer

 

[Spike0358]

Do you have them wired correctly? That amp will push out way more than that pioneer

They came pre-wired to a final 1-ohm load. The box only has 2 wire hookup to amplifier. Would this be the correct way to the amplifier? Tried the outer positive. And negative but didn't work.

 

[Spike0358]

They came pre-wired to a final 1-ohm load. The box only has 2 wire hookup to amplifier. Would this be the correct way to the amplifier? Tried the outer positive. And negative but didn't work.