Question about Bose Radio Communications

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I have a Bose Quietcomfort 2. There seems to be a loose contact on the left side of the headset. It doesn't help to re-insert the jack or replace the battery. I would like to open the left side to see if I can fixt it myself (solder or other solution). My question ... how do I open it without twisting, forcing and damaging the headset for good?

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  • Jacques_VE Sep 06, 2010

    Yes I was now able to open (even without having to cut the soft-part). I also went on taking out the 4 screws to open the outer-lid. However I cannot see any visible damage or loose wires (however tiny they are). It still doesn't work, so it may be the loudspeaker itself that is out of order. I guess my only option is to buy a new unit ... as Bose stores don't seem to accept repairs. Your final opinion on this may be helpful. Thanks.

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In the large number of cases, the head phone cushion is the last piece of the headset to be put into place, often with glue or some other bonding agent.
To get into the area you are speaking of, you may need to perform a slight 'operation' on the left heaphone to gain access including, in a worst case scenario, cutting the ear cushion, just make sure you have an epoxy resin or some other form of glue or bonding agent that you will be able to use to put everyhing back together with.
I hope this helps. Good luck.

Posted on Sep 06, 2010

  • Adam Jerome_lagudi
    Adam Jerome_lagudi Sep 06, 2010

    The best way to test the headphones is to use a multimeter and test the continuity (aka, the beep test) from the plug that plugs into the stereo to the wire inside the headphone. If the problem is interrmittent you may need to wiggle it around inside the headphone to see the fault.

    If you can see point of contact from where the wire meets in the headphone, as long as you don't over solder it, you can apply a small amount to ensure the contact has clean fresh solder as a dry solder joint may cause this intermittent problem. I hope this helps. Thanks for the rating as well.

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I also had the left channel audio not working, so the first thing to do was to take apart the headset.

Step 1. Remove the battery. Remove the two tiny screws from under the u-shaped plastic piece that holds the earpiece to the headset. You will have to pop out the end furthest from the audio jack. A #0 phillips is needed. Put the tiny screws in a safe place.

Step 2, Break the silver cover free from the black plastic earpiece by sliding a flat blade screw driver down between the joint towards the bottom of the earpiece. Be very careful not to insert the screwdriver blade too far into the earpiece because the circuit board is just inside. For some reason Bose decided to glue the two attachments for the bottom of the silver cover to the earpiece.

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Step 4. Remove the solder from the 4 tabs holding the audio jack to the circuit board. Remove the audio jack from the circuit board (this is hard and accompanied by much cursing). Try not to overheat the board and lift the lands. Use a pliers to pull out the contact for the left audio channel and bend the jack contact out 1mm or so. Insert it back into the audio jack. Get your audio cord, plug it into the jack and check and see if you have continuity with an ohmmeter. If it all checks out, continue on.

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