Headphone jack does not work

Normally , you would expect the TV sound to stop when headphones are plugged in. Obviously not in this case. If you have a set of headphones, try them and see if the TV still has speakers on. If it does, then there may be a setting on the setup of the TV to get headphones to work. If the TV speakers stop, then I would think that the Logitech are not compatible with the TV. The only other thing would be is to get into the TV and disconnect the TV,s own speakers. If the wires are soldered on and not terminal connected, carefully cut 1 of the wires off near the speaker. If 1 wire is cut, the speaker wont work. Make sure both the TV and the additional speakers (If they have their own power supply) you are using are unplugged from the power before you go doing this...!

The speaker cutout feature whenever the headphone jack is connected is a hard-wired feature of the headphone connector, and cannot normally be bypassed without further electronic circuitry and the associated surgery to install a custom modification in the TV. In order to keep the TV speakers on while using the sound elsewhere, you will have to take the audio output from the IR Audio port, if there is one.

Go in to the "applications>utilities" folder. Run the "Audio/MIDI Setup" program. Insure the audio out is actually going to the headphone out.

Hi,

I find that there is a problem with your headphone speaker.
Try with some other headphone, even if it is not working, then you need to take it to the service center.



Cheers,
Mr.Maduraikaran.

Pls go to control panel \ sounds & audio devices \ check & configure from audio tab. Also see if there is any switch on the headphones volume line control etc
If this don't work then ur headphone is faulty. Well Hphones are quite cheap!

hello colin you gat to try ear phones maybe it would work.if it doesnt are you sure during the installations there wasnt a warning ask who so ever did it for you and confirm

I have a 700m, so I'm real familiar with the system. I see one of 2 possibilities. The headphone jack has a switch that disables the on-board speakers, if that is stuck or broken, then the jack/switch must be replaced. (Big hassle)

The other is easier to troubleshoot, then connection from the speakers to the MB goes through the Right hinge cover. Take the hinge cover off, check for broken wires (I has one, ***** to splice too)

Connecting headphones to the system will disabled the internal speakers until the headphone jack is disconnected, at which such time the internal speakers should function again.

If you disconnect the headphones and the internal speakers are not re-activated, then there may be damaged to the microswitch in the jack. (Try rebooting after the headphones are disconnected too)

You need a new one not worth fixing
how old is it when did it stop working
if you just bought it then
you need to return it and have it exchanged
there obviuosly is a defect.

Check mixer on pc to ensure all levels are maxxed. Suspect moreso that plug on side of pc is bad. If this is helpful, please post as such