I have owned the Sennheiser CX 300-II headphones for more than a year so far, and recently the right cable(the one that wraps around your neck) of the asymmetrical cord suffered from a crack. The sound is gone, however fiddling with the cable brings back the sound at certain positions but obviously it is quite inconvenient to walk around town holding up your wire. I checked out videos and sites to try to fix this, however I kept coming up short. I tried cutting the cable and checking the wires inside and there seems to only be two wires (red and copper). Untwisting them unravels a hair-like green wire which is very,very thin. How would I be able to reconnect them to get the sound back? How should I solder the wires together? Thanks.
SOURCE: Replacement connector for Sennheiser PX 250 doesn't work...
The bare copper conductor wire is the screening/common earth to the two signal wires of green and red. The important connection is the copper wire which goes to the jack plug earth which is the section furthest from the tip. The other two are the left and right signal connections. If you get these the wrong way round you will just have to swap them over. Check if they are the right way round by using the balance control on your amplifier or whatever. Have you checked that the problem is not with the headphone amplifier within your equipment? Don't rely on OK sound from loudspeakers as the headphones may be fed from separate op-amp output chip. Try another pair of cheap and cheerful headphones to make sure.
SOURCE: Colors of the wires for CX 400 headphones
i think yellow-green are moveable ground of the volume pots, just
because they are seperated and twisted to reduce noise. seperating,
twisting ground channels, especially connecting them in only one point
near source's ground is the basic rule of simple electronics to achieve
noise reduction. yellow cable is a high impedance side of volume pot and
its hard to get noise when you move pot the yellow side because you're
making speakers to generate lower volume. so its not needed to twist
yellow wire with others. its the possible scheme below,
http://i55.tinypic.com/s612ko.jpg
SOURCE: I had working Sennheiser Hd
Where exactly do you have to hold? If in the middle of wire somewhere, I have no idea what can be wrong. However, the problem is most likely in damaged wire or connection of it. Most likely its near the plug in part. If you know how to solder, just cut the wire few centimeters from damaged place. Best way to fix problems near plug is to cut it off and solder new one.
SOURCE: Sennheiser HD 205 Headphones. My
Hi, Ian, If you have soldering experience, you might be able to replace it by yourself. If you remove the portion of the wire that is frayed and replace it with new wiring, it might work. If you feel comfortable doing this, I would say go ahead. However, it might be just as cost-effective to take it to a local audio-repair shop and have them do it. I have had multiple sets rewired myself, and it has cost less than $20 each time. Either way, it should be a relatively easy and cheap fix.
SOURCE: no sound in right headphone,
Sounds like u have a bad wire, Its fixable depending on where the break is. If its near the plug end, u can head to ur nearest radio shack and get a replacement, however, if the break is in the leading headphone, though still fixable but requires a bit more tech savy. As long as u can operate a pair of wire cutters and a soldering iron, youll be good to go
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I am actually very new to this whole wiring stuff. But yea to answer tambu, I have to hold the wire at about a 50 degree angle to get some sound.
Either way, when I opened it, I saw two wires, one being red and other copper. When I untwisted the both of them, they had a very thin green (almost like hair) wire(?) inside both of them. What is this green hair-like thing? Is it what needs to be connected or just the red and copper wires?
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