fixing ground traces?

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=114301
Printed Date: April 28, 2024 at 4:49 PM

Topic: fixing ground traces?

Posted By: snhtown
Subject: fixing ground traces?
Date Posted: June 07, 2009 at 7:00 PM

how do i fix the ground traces on the inside of the amp? i tried looking it up but no luck. can anyone help?

Replies:

Posted By: i am an idiot
Date Posted: June 07, 2009 at 7:28 PM

have you located the open trace? How wide is it? The trace is simply a wire that is attached to the circuit board. To repair an open trace you simply solder a wire to the next component left of the trace and solder the other end of the wire to the next component right of the open. The width of the trace determines how large of a wire you need to use.

Posted By: snhtown
Date Posted: June 12, 2009 at 10:41 PM

i havent opened the amps yet to check it out. perhaps you know of any web pages with some pictures or instructions?

Posted By: i am an idiot
Date Posted: June 13, 2009 at 12:26 AM

The following links show the open trace, and then the same trace repaired with a piece of desoldering braid.
Burnt Trace
Repaired with DeSoldering Braid
The trace in these photos are much larger than the trace you will be looking for. You will have to strip some wire and put solder on that wire then bend it as you need then solder it across the trace to be repaired. If the bending is going to be too involved because of the shape of the original trace, simply take a short length of wire, strip both ends and solder to the component each side of the open. The following picture is just in case you do not understand what to do with the wire. The wire in the pic is WAY too small for the trace that is open. This size wire will probably be what you need for the trace you are dealing with. But not big enough to repair the pictured trace.
posted_image

Posted By: snhtown
Date Posted: June 13, 2009 at 2:59 PM

thank you, this is exactly what i was looking for.

Posted By: snhtown
Date Posted: June 13, 2009 at 3:05 PM

so if i go to radio shack and get some desoldering braid and do it as in the picture i will be ok? or should i just get a peice of wire? uhmm maybe a 16ga or remote wire size will do? i did this once a long time ago so i just need to refresh my memery. if one amp is putting out 2000 watts and another putting out 400 watts will remote wire size wire be ok? what do you think?

Posted By: i am an idiot
Date Posted: June 13, 2009 at 3:11 PM

i am an idiot wrote:

The width of the trace determines how large of a wire you need to use.

I have no idea how big the trace is on your amp. If you can take and post a pic of the trace that is open, maybe then i could better advise you on what to do.

Posted By: snhtown
Date Posted: June 13, 2009 at 8:14 PM

well i opened the eclipse amp and i did not see anything wrong with it at all. i did not smell anything that smelt burnt and i couldnt find anything that looked burnt. do i need to take the board out and check the bottom? i have some pics but they are to big to upload, is there something i can do to the pics so i can show them 2 u?

Posted By: i am an idiot
Date Posted: June 13, 2009 at 9:11 PM

I PM'd you my e-mail address. Send me the pics and let me look at them before you take the amp out of the heat sink. It wouldn't happen to be a 3322, would it? I happen to have one that I can look at.

Posted By: snhtown
Date Posted: June 18, 2009 at 12:59 PM

it is a Da7232

Posted By: i am an idiot
Date Posted: June 19, 2009 at 2:02 AM

With your ohm meter, what is the resistance from the shield of the RCA jacks to the speaker terminals of the amp. 4 speaker terminals means you post 4 readings. 2 terminals means 2 readings.