The wire directly under the left earphone got pulled and now no sound comes from that earphone unless i push the wire really hard into the earphone. is there any way to fix this?

Lean a book on the earphone plug to keep it in the right position. Or, pay a computer repair shop to replace the socket.

Hi Steve,
This is an indication of faulty earphone jack, this is where the headset directly hooked up. See sample picture below.




When the you hooked up the headset to this jack, internal switch will released the contact to cut the audio goes to the main speaker out of the unit. Once you pulled out the headset plug, the audio will back to the main output speaker out through this switch.
In your cased, there's a malfunction in the internal switch of the earphone jack that's you haven't sound output at the main speaker out.
You may spray contact cleaner directly to the earphone jack while inserting and pulling out the headset plug to clean the lead. If the symptom still persist, you must replaced it with new one to back the unit in normal operation again.
Hope I helped you.
Have a nice day!
Thanks for using Fixya

Try your headphones in a different audio device. If the problem persists than the headphones have a split in the wiring for the left earbud. If you are under warranty then Sennheiser will happily repair your headphones.

Sounds like you are on the right road with the switch. Before I bought a new switch I would locate the switch, it will come in direct contact with the brake pedal arm, and see if there is an adjustment or if it has moved for some odd reason. Sometimes things just happen.

If in warranty, return it for repair.
Assure that your player is working by trying it with another headset. If it doesn't work, having the balance off to one side would be a cause. Another cause is lint or dirt getting into the headphone connector.
Most likely there is a broken wire caused by pulling on the cord at the connector or earphone. To isolate which end, try pushing the wire into the connector or earphone and seeing what makes the sound come back. The break will usually be where it enters the strain relief and can flex the most.
If holding the wire straight makes it work, you can try applying epoxy around it to keep it that way. Otherwise, you will either need to solder on a new connector (reasonably easy if you can solder) or re-solder where it goes into the earphone (difficult and/or looks like hell). These items are not made to be repaired.

Hey there,
As you say you have tried with different earphones, it sounds like the problem is with the socket. If it's under warranty, you can get it replaced. If not, it could work if the socket is replaced. You can get it done at some local electronic shop

your ear input female jack is stripped try another new pair of earphones if not you may have to take it in for service.

the connector may have come loose from the player board, you could try opening it and replacing/resoldering the port, but it would be best if you just sent it back for repair.

Sounds like the phone jack is defective or the cable to the earphones is defective.