weird voltage drop...

[BeAlLsTaR13 10+ year member]

i think the hu is fine too i think its something to do with actual power wire, possibly the fuse holder now

but who knows, we'll know tomorrow for sure, i hope

 

[BeAlLsTaR13 10+ year member]

I'll admit I didn't look through all those pages of pictures. Alright, I didn't look at any. I think you may have solved you're own problem.

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yeah but anyways how could the fuse holder be the problem? its a solid connection, and tight, not much raw wire is just hanging out.. maybe it isnt a good quality fuse holder? check the link, think so? link to fuse holder is in one of my posts above.

 

[McIntosh 10+ year member]

//content.invisioncic.com/y282845/emoticons/laugh.gif.48439b2acf2cfca21620f01e7f77d1e4.gif:laugh://content.invisioncic.com/y282845/emoticons/laugh.gif.48439b2acf2cfca21620f01e7f77d1e4.gif:laugh://content.invisioncic.com/y282845/emoticons/laugh.gif.48439b2acf2cfca21620f01e7f77d1e4.gif
yeah but anyways how could the fuse holder be the problem? its a solid connection, and tight, not much raw wire is just hanging out.. maybe it isnt a good quality fuse holder? check the link, think so? link to fuse holder is in one of my posts above.

Nope, not checking the link. If you have ANY voltage drop across a fuse there is a problem. If you verify that's where the drop is, you've found your culprit. You could burnish/sand or whatever but my gut feeling is you can't polish a turd (MythBusters tried it). I have no idea what brand you have but its obviously defective/inferior. I'd bet it says "CHINA" somewhere on it. Try an American made fuse holder.

 

[Nut Hair Trick 10+ year member]

has anyone thought to disconnect the new power wire from the bat then test? If the voltage doesnt drop, then you can eliminate a HU problem. As others have said, I would then bypass the cap, put it back, then bypass the fuse.

Edit: oops there would still be the possibility of the HU's remote wire causing problems even with the power wire disconnected. From there, I would reconnect power wire and remove the remote wires as Kyle suggested. I'm no guru by any means, but I think it's the cap.

 

[McIntosh 10+ year member]

has anyone thought to disconnect the new power wire from the bat then test? If the voltage doesnt drop, then you can eliminate a HU problem. As others have said, I would then bypass the cap, put it back, then bypass the fuse.

It's very doubtful the HU alone could draw enough current to cause that kind of voltage drop. With no volume (current) demand, the HU and amps should idle with virtually no current draw. Unless they're grossly "misaligned" as in huge amounts of offfset they should run cool until asked to produce sound. I'm sticking with a poor connection (possible shitty fuse holder in this case).

 

[BeAlLsTaR13 10+ year member]

Nope, not checking the link. If you have ANY voltage drop across a fuse there is a problem. If you verify that's where the drop is, you've found your culprit. You could burnish/sand or whatever but my gut feeling is you can't polish a turd (MythBusters tried it). I have no idea what brand you have but its obviously defective/inferior. I'd bet it says "CHINA" somewhere on it. Try an American made fuse holder.

its an audiopipe fuse holder

 

[BeAlLsTaR13 10+ year member]

well, just remove both remote turn on wires from both amps.. voltage when car started was 14.4.. turned hu on, stayed at 14.4 turned music on, played through rear speakers.. stayed at 14.4 even when i turned the HU off

so that shows that it isnt the HU

so now, it has to be something along the power wire line, wether its the wire it's self, bad connection, or the fuse holder.

 

[BeAlLsTaR13 10+ year member]

well, after i did the test with the remote wires out, i thought i should just see if its still doing it before i have to take things apart and what not, so i tested voltage at front and back with car off, then started, then hu on, playing music, music off, hu off.. voltage started at 14.4, and ended in 14.4

so, i turned the HU off.. voltage stayed at 14.4 i took my DMM measured the voltage at the amps, it was 14.4 at my subwoofer amp, and 14.3 at my front stage amp.. seems right since i have the cap being used as a distro to both of my amps, but the power wire to the front stage amp is 5ft long give or take a few inches.

so since the problem just "disappeared" over night, litterally, it will most likely pop up again, but until it does i cant do any more tests to see what the problem was... fawk >.

 

[jpexpc 10+ year member]

How are you testing equipment when it's supposed to be in boxes on the way to me? //content.invisioncic.com/y282845/emoticons/laugh.gif.48439b2acf2cfca21620f01e7f77d1e4.gif

 

[BeAlLsTaR13 10+ year member]

How are you testing equipment when it's supposed to be in boxes on the way to me? //content.invisioncic.com/y282845/emoticons/laugh.gif.48439b2acf2cfca21620f01e7f77d1e4.gif

the thing in your new sig scared it all away so they ran back home to me..

 

[jpexpc 10+ year member]

the thing in your new sig scared it all away so they ran back home to me..

That would be an avatar. //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif

 

[BeAlLsTaR13 10+ year member]

That would be an avatar. //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif

yeah i noticed that but i was too lazy to edit, and editing posts makes you look like a fool.

 

[jpexpc 10+ year member]

yeah i noticed that but i was too lazy to edit, and editing posts makes you look like a fool.

I ninja 80% of my posts. I'm just sayin'. It's safe to do until someone quotes you. Then you're screwed.

 

[BeAlLsTaR13 10+ year member]

I ninja 80% of my posts. I'm just sayin'. It's safe to do until someone quotes you. Then you're screwed.

//content.invisioncic.com/y282845/emoticons/laugh.gif.48439b2acf2cfca21620f01e7f77d1e4.gif

 

[McIntosh 10+ year member]

I ninja 80% of my posts. I'm just sayin'. It's safe to do until someone quotes you. Then you're screwed.

That "avatar" is just wrong, in too many ways.