How to find audio grounding problem? - JeepForum.com
Search  
Sign Up   Today's Posts
User: Pass: Remember?
Advertise Here
Jeep Home Jeep Forum Jeep Classifieds Jeep Registry JeepSpace Jeep Reviews Jeep Gallery Jeep Clubs Jeep Groups Jeep Videos Jeep Events Jeep Articles
Go Back JeepForum.com > Models > Jeep Cherokee & Comanche Forums > XJ Cherokee Technical Forum > How to find audio grounding problem?

Savvy/Currie Aluminum Control ArmsRockridge 4WD IS Taking Zone Offroad Suspension Lift Kits ZONE 4.25" combo lift for TJ available at Rockridge4w

Reply
Unread 06-05-2012, 05:12 PM   #1
leichte
Registered User
 
Join Date: Oct 2010
Location: Black Mountain, NC
Posts: 20
How to find audio grounding problem?

I have an 87 Laredo and recently have had some radio issues.

I was getting a soft whine when the radio was on. The whine would increase with acceleration. Normal sound was coming from the speakers but the whine was as well.

Shortly after that there was no longer sound coming from the speakers. The radio was on and working but no sound. Every so often I could get sound for a few minutes if I moved the cables/wires on the back of the head but it never lasted. I do get a dull audio sound if I touch on of the rca cables on the back of the head or when I shut the radio off but still no other sound. When the unit is on, it is dead silent.

I figure there is a grounding issue somewhere but I have no idea how to locate or identify it. Can someone give me some guidance? I'd rather not take it to a car audio place if I can help it. Electrical/audio is not my thing.

Thanks for the help!

leichte is offline   Reply With Quote Quick reply to this message
Unread 06-05-2012, 09:31 PM   #2
keepishop
Registered User
1989 XJ Cherokee 
 
Join Date: Oct 2008
Location: Seattle
Posts: 3,372
Grab a multimeter and set it to ohms. Start probing ground points and wires looking for resistance to the battery negative. There should be none.
__________________

Current: Black 89 limited, dakota bastard pack, zj coils, 1.5" lift, open cooling swap, bronco 2 carrier, rad fan switch
Rest in Pieces: Red 1990 cherokee dana30/8.25 - v8 zj coils & s10 bastard pack 2.5" lift - 31x10.5r15 tires - v8 zj tierod

Quote:
Originally Posted by talentjeep View Post
Bleed or Quit.
jf irc @ irc.freenode.net #jeepforum
keepishop is offline   Reply With Quote Quick reply to this message
Unread 06-06-2012, 05:05 AM   #3
residentg
Registered User
2000 XJ Cherokee 
 
Join Date: Jul 2011
Location: , NY
Posts: 192
This will get rid of the whine:

http://www.crutchfield.com/p_003S15A...t.html?tp=3723
residentg is offline   Reply With Quote Quick reply to this message
Reply

Tags
audio , radio , short , speaker , wires

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the JeepForum.com forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid e-mail address for yourself.
Note: All free e-mails have been banned due to mis-use. (Yahoo, Gmail, Hotmail, etc.)
Don't have a non-free e-mail address? Click here for a solution: Manual Account Creation
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.


Thread Tools


Suggested Threads





Jeep, Wrangler, Cherokee, Grand Cherokee, and other models are copyrighted and trademarked to Jeep/Chrysler Corporation. JeepForum.com is not in any way associated with Jeep or the Chrysler Corp.