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Old 06-16-2016, 08:05 AM   #1
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Need Help from audio gurus! MFT amp AB w/ Lc2i issue

First off, this is my first post here, although I've lurked for a while now...so HI! Now that that is out of the way. HELPPPP!!!

The Problem: Since installing my LOC, I get no sound of any kind from any speakers; the aftermarket ones OR the stock ones. Prior to installing the LoC, my aftermarket fronts were getting signal, as were all the stock components. The one exception is that if I max the volume on the MFT, I can hear faint white noise from my fronts; this may or may not be relevant.

The setup: I have a 2013 Titanium with the Sony 10-speaker and the amp serial ends in AB (so no resistors needed, yah?). I ran an LC2iB from the Sony amp, per Hoppy's awesome diagram (RF+wht/purp, RF-wht/org, LF+wht, LF-wht/brn). The LC2iB is then outputting to a mono amp as well as a 2-channel. Power for the two amps and the LoC is being pulled from a 1-farad cap, which is wired directly to the battery and grounded to the chassis. The readout on the cap is showing 12v/14.4v.

I have the LC2iB in GTO mode, and it isn't powering on, which means that the two amps aren't either because they are remote from the LC2iB.

Any ideas why I suddenly get no sound after splicing into the amp? I have my suspicions as to what the issue might be, but I wanted some feedback from people way smarter than me (if you're still reading this, then that's you!) before I go tearing things apart all willy-nilly like. Ready? Go!!


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Old 06-16-2016, 09:41 AM   #2
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Bueller?

If you need more/other info, lemme know.
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Old 06-16-2016, 09:46 AM   #3
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You question why you get no sound, and you said this:

Quote:
I have the LC2iB in GTO mode, and it isn't powering on, which means that the two amps aren't either because they are remote from the LC2iB.
The issue is the turn on isn't happening, 100%. Stop chasing signal issues, that's not the problem, and try to figure figure out the turn on issue.
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Old 06-16-2016, 09:55 AM   #4
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Quote:
Originally Posted by Slo86GT View Post
You question why you get no sound, and you said this:
I don't believe that is the problem because the STOCK rear speakers aren't producing sound either, and they are independent of the LoC.
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Old 06-16-2016, 10:05 AM   #5
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Can anyone post/link a clear picture of which wires they tapped into from the Sony amp? Perhaps I grabbed the wrong ones?
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Old 06-16-2016, 11:25 AM   #6
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Think I have it figured out; I tapped into the 20-pin connector wiring, not the 16-pin. oops. I'll work on it this evening and let you know.
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Old 06-17-2016, 10:24 AM   #7
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Quote:
Originally Posted by Unh1ng3d View Post
First off, this is my first post here, although I've lurked for a while now...so HI! Now that that is out of the way. HELPPPP!!!

The Problem: Since installing my LOC, I get no sound of any kind from any speakers; the aftermarket ones OR the stock ones. Prior to installing the LoC, my aftermarket fronts were getting signal, as were all the stock components. The one exception is that if I max the volume on the MFT, I can hear faint white noise from my fronts; this may or may not be relevant.

The setup: I have a 2013 Titanium with the Sony 10-speaker and the amp serial ends in AB (so no resistors needed, yah?). I ran an LC2iB from the Sony amp, per Hoppy's awesome diagram (RF+wht/purp, RF-wht/org, LF+wht, LF-wht/brn). The LC2iB is then outputting to a mono amp as well as a 2-channel. Power for the two amps and the LoC is being pulled from a 1-farad cap, which is wired directly to the battery and grounded to the chassis. The readout on the cap is showing 12v/14.4v.

I have the LC2iB in GTO mode, and it isn't powering on, which means that the two amps aren't either because they are remote from the LC2iB.

Any ideas why I suddenly get no sound after splicing into the amp? I have my suspicions as to what the issue might be, but I wanted some feedback from people way smarter than me (if you're still reading this, then that's you!) before I go tearing things apart all willy-nilly like. Ready? Go!!
Well if the amps are not powering on you will have almost no volume on the output side of them. Or maybe i'm just reading this post wrong.
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