If you have intermittant audio jack problems, here’s what you can try. Get some WD40 and spray it on a Q-tip. Then swab the Q-tip around an audio plug (from an earphone say). Then push the plug in and out of the jack. This should make the contacts better. You can also try it with some contact cleaners from a local electronics store (Radio Shack should have them). DO NOT spray any oil or solvent directly into the jack. You’ll start shorting things out, and solvents on circuits boards will cause corrosion eventually. This will work only if you have a contact problem. If the jack has PC board soldering issues, you’ll have to open up the unit (this will void your warranty) and re-solder the solder joints (do this only if you know how). Unfortunately, your syptoms sound like it is a soldering joint problem, especially if just twisting the plug does not help. It may also be that the internal armature of the jack has loosened up, and is not contacting or putting enough pressure on the plug. While you’re in there, you might want to check that there is sufficient tension on the armature to press against a plug. It might be as severe as mis-alignment or mechanical distortion of the armature, then you’ll have to replace the jack.
Message Edited by ggin1 on 02-23-2010 10:19 PM