car audio display board

Printed From: the12volt.com
Forum Name: General Discussion
Forum Discription: General Mobile Electronics Questions and Answers
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=114960
Printed Date: May 13, 2025 at 11:49 AM

Topic: car audio display board

Posted By: wizardaudio
Subject: car audio display board
Date Posted: July 09, 2009 at 10:07 AM

Hey there I have a problem with our display board. We have the Lynx FSCA6. When we hook a 2ch or 4ch amp for the front and rear speakers we get bad feedback. The only way we dont is if we only have on one radio and no sub amp. The second that we turn anything else on the feedbadk comes back. We have tried Ground Loop Iso, Grounding the RCA, and even hooking the 4ch amp with a splitter of the board. So any info would be great. Thanks

Replies:

Posted By: i am an idiot
Date Posted: July 09, 2009 at 11:33 AM

That is going to be hard to troubleshoot over the internet.

Has the disply worked in the past? What happened right before it started having this problem?

Posted By: icearrow6
Date Posted: July 09, 2009 at 12:54 PM

Check your power supply. I think its not big enough. did you upgraded the amps?

Try using a second power supply for the bass amp.

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Posted By: wizardaudio
Date Posted: July 10, 2009 at 8:02 AM

Well the problem has been there since we put it all together. There are 8 Radios, 1 4ch amp, and 1 bass amp. The Power supply is a IPS1280 by Kinetik. It has an output of 13.6VDC and 80 Amps. If that is not enough power then i guess we need to get another power supply.

Posted By: i am an idiot
Date Posted: July 10, 2009 at 4:33 PM

If it is having problems at low volume, the power supply is not your problem. If it is only giving you a problem when it is playing loud, then it MAY be a power supply issue.

Posted By: wizardaudio
Date Posted: July 11, 2009 at 8:02 AM

No it does it at all times. dont matter if the volume is high or low. I have contacted the manufacture about the problem. They have no idea as well... Just thought I would give here a shot.

Posted By: lspker
Date Posted: July 12, 2009 at 9:27 PM

Pioneer decks? Sounds like there is an impedence mismatch between input Rca and output.

Check if rca grounds aren't blown off deck or swicther box. Are the Rca routed near the power wires, or ac in.

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