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amp isnt working?

Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=81928
Printed Date: May 16, 2024 at 3:01 AM


Topic: amp isnt working?

Posted By: stormraider04
Subject: amp isnt working?
Date Posted: August 22, 2006 at 5:29 PM

ok well i put my mono amp in the other day and it doesnt seem to work. i was hooking it up to one 4ohm sub. does it matter that i hooked it up to a 4ohm sub when the amp is rated for 1 and 2 ohm? but i have a sginal to the amp and the power light is coming on. so if the power light is coming on doesnt that mean my power and my ground are good? so what else could it be? any ideas?



Replies:

Posted By: stormraider04
Date Posted: August 22, 2006 at 7:34 PM

well i should have power because i have a distribtuion block and my speaker amp is working fine. and i do have a fuse in for the mono amp. i do know the sub is good becasue it came out of my old truck and it still works.

i have an eclipse avx 5000. is there an option that turns the sub on and off?

for the signal wire i tested it for continuity while it was off to make sure the wire wasnt pinched from anything. how do i test the signal wire while the radio is on?

also i am not getting an output from the amp.

the amp is brand new. it is an Arc Audio foose desing 1200.1





Posted By: stang351w
Date Posted: August 22, 2006 at 8:44 PM
well..to get a reading on the remote wire when it's on. just put the volt meter to the proper range (closes't to 12 volts) and ground one lead and put the other lead on the remote wire at the amp and turn the cd player on...if there's power it should read  at least 12.4 volts. i'd also do the same across the + and - terminals of the amp just to make sure there's a min of 12.4 volts getting there (14.4 is what you want with the vehicle running) but i've seen an amp turn on with only 10-11 volts but not enough to produce any sound..

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Tri County KustomZ
certified installer




Posted By: stormraider04
Date Posted: August 22, 2006 at 10:56 PM
sorry if i was unclear but i meant how to measure the rca's. i know the remote turn on, power, and ground are all working.




Posted By: stormraider04
Date Posted: August 31, 2006 at 5:44 PM

can anybody help me out? i can figure out what is wrong. im getting power and remote turn on wire is working. the amp power light is on. im not getting anything from the output of the amp. when i test the rcas im getting a small voltage when i got from the outer part to the inner part. is that how they are suppsoe to be tested or what? would my dvd player have to where i can turn the sub on and off? really need help. thanks





Posted By: geepherder
Date Posted: August 31, 2006 at 6:56 PM
Yes, measure ac voltage from the inner to the outer conductor of the rca's.  If you've got signal, then it looks like your amp is bad.  Try another.

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My ex once told me I have a perfect face for radio.




Posted By: stormraider04
Date Posted: September 01, 2006 at 3:40 PM
well i measured the voltage and im getting around .004 volts. or 4mV. is that right or what should it be reading?




Posted By: stormraider04
Date Posted: September 01, 2006 at 4:20 PM
ya my dvd player has a preout of 5 volts. so i should be reading closer to 5 volts then?




Posted By: geepherder
Date Posted: September 01, 2006 at 7:12 PM

Yes, .004 volts is 4 mV.  Sounds like you've identified the problem- good job.  I'd take the dvd player back for service or a replacement.



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My ex once told me I have a perfect face for radio.





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