amp fried? :/

[09civic 5,000+ posts]

so last night i was taking my friends home and the sub cut out. it wud only turn back on if i turned the hu past 20. so the next morning, it doesnt work at all. i take the sub out of the box and the wiring was fine. i hook the sub up without the box and it doesnt move. so i thought it was the sub. so i take it my frends house and he hooks it up to his amp and the sub works fine. my amp light stays on and the fuses are fine so idk whats wrong with it

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[Buck 5,000+ posts]

Take a dmm and see if your amp is putting out any voltage (AC).

 

[09civic 5,000+ posts]

i will tommorrow morning

 

[09civic 5,000+ posts]

so i checked if the amp was giving any output with a dmm and i got nothing. so i guess its bad...

 

[mast240 10+ year member]

just to make sure... you were checking AC voltage, right?

take a pic of the guts... there are usually some tell tale signs of a burnt amp

 

[09civic 5,000+ posts]

just to make sure... you were checking AC voltage, right?
take a pic of the guts... there are usually some tell tale signs of a burnt amp

yes i was using AC voltage. and i will later after work.

 

[09civic 5,000+ posts]

here are the gut pics

http://i1118.photobucket.com/albums/k614/95saturn/397cd051.jpg

http://i1118.photobucket.com/albums/k614/95saturn/cdf94603.jpg

http://i1118.photobucket.com/albums/k614/95saturn/3a752f49.jpg

 

[mast240 10+ year member]

yup... looks like you smoked a resistor, and a couple small capacitors (from what i can see in the pics)

kinda hard to tell for sure in just a pic... but my best guess, from what i'm seeing, is that you burnt part of the board. cant really tell unless you see the other side of the board... but pull the board out, and look where the components i marked are located... and look at the solder trail... if its golden/brown... you most likely fried it

 

[09civic 5,000+ posts]

thats not a burn mark. its the black goop they use for adhesive

 

[mast240 10+ year member]

o ok... well thats about the only thing i could find on the pics that would say its burnt... that resistor still looks like it got melted a lil bit (but it might just be the pic).

like i said tho... the easiest way to figure it out, is take the board out, and check the solder tracks on the other side... pretty easy to see on the track side

 

[09civic 5,000+ posts]

so thanks to pro rabbit, i found out my amp is not fried. it is either my RCA cable or the RCA's on the back of the hu. i found this out by taking my aux and putting directly to the amp and play it like that and it worked fine. im hoping it's just the RCA cable so i don't have to buy a new hu

 

[infamous_e46 5,000+ posts]

so thanks to pro rabbit, i found out my amp is not fried. it is either my RCA cable or the RCA's on the back of the hu. i found this out by taking my aux and putting directly to the amp and play it like that and it worked fine. im hoping it's just the RCA cable so i don't have to buy a new hu

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[09civic 5,000+ posts]

//content.invisioncic.com/y282845/emoticons/wow.gif.23d729408e9177caa2a0ed6a2ba6588e.gif

wut

 

[pro-rabbit 5,000+ posts]

//content.invisioncic.com/y282845/emoticons/wow.gif.23d729408e9177caa2a0ed6a2ba6588e.gif

He has a headphone to rca converter for his aux input. So he just plugged that into the amp using the MP3 player as a signal source. Thus the RCA cables or the head unit are what is at fault for no sound.

 

[infamous_e46 5,000+ posts]

He has a headphone to rca converter for his aux input. So he just plugged that into the amp using the MP3 player as a signal source. Thus the RCA cables or the head unit are what is at fault for no sound.

i know i just was like wtf he didnt check his rca's first