[breaker1369]

As i was wiring up and installing aftermarket lc2i, amp and sub in the process of checking sub signals i noticed the pair going out to my passenger seat sub wasnt getting any readings i then checked at woofer for any sound and non hence why no signal....how do i determine if the woofer itself failed or if the channel signal out frm amp side is the issue...i have a top hifi logic 7system setup...

[ctuna]

there is no frm amp.

BMW stereo types
http://www.e90post.com/forums/showthread.php?t=352586
http://www.e90post.com/forums/attach...2&d=1266451970
http://www.e90post.com/forums/attach...2&d=1260829447
http://www.e90post.com/forums/showthread.php?t=138949
http://www.e90post.com/forums/attach...1&d=1209780865
http://bmwcoders.com/forum/3-er-8/bm...1-e92-e93-291/
http://technicpnp.com/menuDiagrams/d...e90_92_93.html
http://www.musicarnw.com/page-2/
http://www.e90post.com/forums/attach...3&d=1169133185
http://www.e90post.com/forums/attach...1&d=1209780605
http://www.e90post.com/forums/showthread.php?t=641323
http://www.e90post.com/forums/attach...4&d=1278871872
http://www.e90post.com/forums/showthread.php?t=343673

Use Volt ohm meter.

[breaker1369]

Originally Posted by ctuna

there is no frm amp.

BMW stereo types
http://www.e90post.com/forums/showthread.php?t=352586
http://www.e90post.com/forums/attach...2&d=1266451970
http://www.e90post.com/forums/attach...2&d=1260829447
http://www.e90post.com/forums/showthread.php?t=138949
http://www.e90post.com/forums/attach...1&d=1209780865
http://bmwcoders.com/forum/3-er-8/bm...1-e92-e93-291/
http://technicpnp.com/menuDiagrams/d...e90_92_93.html
http://www.musicarnw.com/page-2/
http://www.e90post.com/forums/attach...3&d=1169133185
http://www.e90post.com/forums/attach...1&d=1209780605
http://www.e90post.com/forums/showthread.php?t=641323
http://www.e90post.com/forums/attach...4&d=1278871872
http://www.e90post.com/forums/showthread.php?t=343673

Use Volt ohm meter.

sorry typo meant from not frm

[breaker1369]

Originally Posted by ctuna

there is no frm amp.

BMW stereo types
http://www.e90post.com/forums/showthread.php?t=352586
http://www.e90post.com/forums/attach...2&d=1266451970
http://www.e90post.com/forums/attach...2&d=1260829447
http://www.e90post.com/forums/showthread.php?t=138949
http://www.e90post.com/forums/attach...1&d=1209780865
http://bmwcoders.com/forum/3-er-8/bm...1-e92-e93-291/
http://technicpnp.com/menuDiagrams/d...e90_92_93.html
http://www.musicarnw.com/page-2/
http://www.e90post.com/forums/attach...3&d=1169133185
http://www.e90post.com/forums/attach...1&d=1209780605
http://www.e90post.com/forums/showthread.php?t=641323
http://www.e90post.com/forums/attach...4&d=1278871872
http://www.e90post.com/forums/showthread.php?t=343673

Use Volt ohm meter.

when i put leads on wires frm volt meter it wasnt putting out not even a volt...got like .02 havent checked ohms yet will do that in a few

[ctuna]

You are not making any sense what it this frm you are speaking of perhaps
you meant from?

[breaker1369]

Originally Posted by ctuna

You are not making any sense what it this frm you are speaking of perhaps
you meant from?

it was a *typo*

"how do i determine if the woofer itself failed or if the channel signal out ***frm amp ****side is the issue.."

i misspelled meant to put *from* not frm


i meant "or if the right channel out (right subwoofer) *from* amp is not sending out any signal may be the issue" in other words if amp is possible problem

[breaker1369]

are we now on the same page?

[ctuna]

Both under seat woofers should measure about the same number of ohm.s
If you measure it at the connector at the amp (with the connector disconnected)that also checks out the wire .
itself. If one side works and the other does not if you reverse the wires for the sides
from left to right it would tell you if the problem shifted that the speaker on the non
working side was not the problem .

How are you tapping signals for this amp maybe the lci is loading the signal.

subwoofer threads
http://www.e90post.com/forums/showpo...2&postcount=66
http://www.e90post.com/forums/showth...t=Ultimate+Sub
http://www.e90post.com/forums/showth...ight=subwoofer

[breaker1369]

Originally Posted by ctuna

Both under seat woofers should measure about the same number of ohm.s
If you measure it at the connector at the amp (with the connector disconnected)that also checks out the wire .
itself. If one side works and the other does not if you reverse the wires for the sides
from left to right it would tell you if the problem shifted that the speaker on the non
working side was not the problem .

How are you tapping signals for this amp maybe the lci is loading the signal.

subwoofer threads
http://www.e90post.com/forums/showpo...2&postcount=66
http://www.e90post.com/forums/showth...t=Ultimate+Sub
http://www.e90post.com/forums/showth...ight=subwoofer

i also checked earlier the sub signals without lc2i with volume @75% up...the left sub signal registered 10-12volts ac and right sub signal not even a volt...havent checked the ohms yet...meant to do it earlier when i mentioned in earlier post but had to tend to my 2yr daughter...within the next half hour ill be checking it out and ill take pics of my findings

[breaker1369]

[QUOTE=ctuna;26736285]Both under seat woofers should measure about the same number of ohm.s
If you measure it at the connector at the amp (with the connector disconnected)that also checks out the wire .
itself. If one side works and the other does not if you reverse the wires for the sides
from left to right it would tell you if the problem shifted that the speaker on the non
working side was not the problem .

im not understanding what youre trying to say or explain...

[breaker1369]

Originally Posted by ctuna

Both under seat woofers should measure about the same number of ohm.s
If you measure it at the connector at the amp (with the connector disconnected)that also checks out the wire .
itself. If one side works and the other does not if you reverse the wires for the sides
from left to right it would tell you if the problem shifted that the speaker on the non
working side was not the problem .

How are you tapping signals for this amp maybe the lci is loading the signal.

subwoofer threads
http://www.e90post.com/forums/showpo...2&postcount=66
http://www.e90post.com/forums/showth...t=Ultimate+Sub
http://www.e90post.com/forums/showth...ight=subwoofer

heres what i got...

[breaker1369]

i do recall months back there wan an intermittent issue with right sub sounding distorted for cple minutes off and on then noise went away and probably happened a couple more times after that...

[ctuna]

I take it the second measurement it 8.9 and there is a segament missing
from your meter . The difference is to great. I would take a measurement
at the speakers if approximately the same resistance is measured I would
suspect the one with the larger measurement is bad, Or could the taps that
you put on have cut the wire to much on one side causing high resistance
and a partial open.

[breaker1369]

Originally Posted by ctuna

I take it the second measurement it 8.9 and there is a segament missing
from your meter . The difference is to great. I would take a measurement
at the speakers if approximately the same resistance is measured I would
suspect the one with the larger measurement is bad, Or could the taps that
you put on have cut the wire to much on one side causing high resistance
and a partial open.

no not 8.9...both were relatively 2.8-3.0....

[ctuna]

That is not what your pictures show.

[breaker1369]

Originally Posted by ctuna

That is not what your pictures show.

the readings was changing as i took pic

[ctuna]

So I would disconnect the taps so see if things return to normal
as a next step. You wouldn't have to necessarily take them off
as first pass at the tap location but at least disconnect them at
the LCI. If things return back to normal then there is something wrong
with your hook up Or the LCI . If you have two channels running into the LCI
you could also exchange the hookups at the LCI to see if the problem
stays on the same side.

[breaker1369]

Originally Posted by ctuna

So I would disconnect the taps so see if things return to normal
as a next step. You wouldn't have to necessarily take them off
as first pass at the tap location but at least disconnect them at
the LCI. If things return back to normal then there is something wrong
with your hook up Or the LCI . If you have two channels running into the LCI
you could also exchange the hookups at the LCI to see if the problem
stays on the same side.

I've already done that and there's nothing wrong with the way I set up the components the problem was the amp earlier I went to the local junkyard and found an exact amp for the car and swapped it out coded it and all is working now so the issue was the amp

[ctuna]

If you want to fix the old one for any reason FYI
http://www.e90post.com/forums/showthread.php?t=1144129

[breaker1369]

opened it up ealier and saw some broken solder joints and some weak ones which prob was the culprit...resoldered and hooked it back up and working.... but i put the replacement back that i got today only because its newer...and ill have my original as a back up unless i end up just upgrading the amp and just sell the factory ones if i were to end up upgrading

[ctuna]

Good job not many would open one up.

[breaker1369]

thanks....yea replacement was allready instslled and working had nothing to lose lol and with that i gained a lil more knowledge about this system