i need some help

[dkguitarist 5,000+ posts]

ok so i got my 20.1 and 13w7 hooked up and everything. i turn on my radio, and turn the subwoofer on, and my amp's power light isn't coming on.

i just now went outside and measured the votage everywhere, and i was around 12V at the battery, the circuit breaker, my distro, and even at the power input on the amp. i then measured the REM terminal and it wasn't registering.

so i pull the headunit out, and measure the remote line at the HU and i didn't get a reading. when i did it was like 2 or so.

i didn't measure the pre-amps output signals, but would those cause the amp not to turn on as well or what?

i need some ideas guys. thanks.

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[dkguitarist 5,000+ posts]

i kno someone can help me out. i need this figured out asap before it gets too hot to work on.

 

[wesl56 10+ year member]

i didn't measure the pre-amps output signals, but would those cause the amp not to turn on as well or what?

nope... has nothing to do with it... but u should be gettin +12 from the remote turn on out of the deck... that sounds like ur problem

 

[dkguitarist 5,000+ posts]

nope... has nothing to do with it... but u should be gettin +12 from the remote turn on out of the deck... that sounds like ur problem

well i kno that's my problem. i just don't kno why it's not outputting a signal. that's my question.

is there anything i can do to fix it?

 

[wesl56 10+ year member]

not that i know of... its usually a circuit in the deck that gets burned out

just hook the wire to the red wire going into the deck (the amps will come on when the radio has power)

 

[KaeZoo 10+ year member]

As long as you've got the meter out, disconnect the remote wire at the head unit and test the remote output voltage without the remote wire to the amp connected. If you still don't get around 12v, then the remote output is bad in the head unit. You can temporarily get around it by connecting the amp's remote wire to the red accessory wire. Put a 1a fuse on the remote wire if you do this.

If the head unit provides 12v without the amp connected, chances are you have a problem with your remote wire (or maybe your amp). Disconnect the remote terminal at the amplifier, then test for continuity on the remote wire with the ground terminal. If you find continuity to ground when the wire isn't connected at the amp or the head unit, you have a short on the remote wire that's shutting down the head unit's output.

 

[dkguitarist 5,000+ posts]

not that i know of... its usually a circuit in the deck that gets burned out
just hook the wire to the red wire going into the deck (the amps will come on when the radio has power)

that's what i wanted to kno. another 12V+ switched source. i don't have to fuse it do i tho?

 

[dkguitarist 5,000+ posts]

yeah i had the wire disconnected and tested the HU's wire and got no output.

and i don't have any 1A fuses laying around.

 

[wesl56 10+ year member]

that's what i wanted to kno. another 12V+ switched source. i don't have to fuse it do i tho?

well depending on which one u tap into, it should already be fused in the vehilce fuse box... wouldn't hurt to add another one tho if u just wanna be safe... and fuse according to wire size... what size is ur remote turn on wire?

 

[dkguitarist 5,000+ posts]

ok, i spliced the rem wire into the red 12V+ wire, and i turned my car on.

voila the amp turns on now.

but my headunit doesn't.

and now my HU won't come back on.

it's still getting 12V to the power wire. wtf did i do?!?!

 

[dkguitarist 5,000+ posts]

and my rem wire is like 18g. very small.

from my old RF amp kit.

why isn't my HU turning back on now?

 

[dkguitarist 5,000+ posts]

ok turns out, somehow my yellow power wire was disconnected. well i moved it and it touched something, so now i gotta replace a fuse in the fuse box. ugh. i think i got it all figured out now tho. we'll see.

 

[Rawr-DQ 10+ year member]

Make sure you didn't knock anything loose in there, and make sure your HU is grounded. Check for any blown fuses.

Edit...oh, next time disconnect the 12v negative terminal!

You can also get a 12 Volt Relay for your amplifier, it will power the remote turn on straight form the battery which means no blown HU's...

 

[dkguitarist 5,000+ posts]

anyone kno where i can look up the fuse diagrams for a 1998 ford escort se?

 

[dkguitarist 5,000+ posts]

nvm. i need a 10A maxi fuse now. ugh. adn i have no spares. looks like i'm goin to pep boys. //content.invisioncic.com/y282845/emoticons/rolleyes.gif.c1fef805e9d1464d377451cd5bc18bfb.gif

i'm ready to get this bish pounding.