Electronics > Beginners

Headphone Testing Help

(1/4) > >>

wardenclyffe:
A friend of mine asked me to repair some headphones the other day. The only problem was general wear where the wires come out from the end of the jack. I cut the jack off and went to add a new one but I couldn't figure out which wires were the left and right channel. I tried to pull the rubber coating off the the old jack to figure out how they were soldered on but goofed it up so badly it was useless.

I know very little about audio signals so my question is how I can best test the headphones to figure out which side is left and right. I am assuming I can feed in a sine wave in the audio range and listen for a tone in headphones but I don't want to damage them in the process. Is there an amplitude limit I should stick to? Some other places have suggested putting a 1.5V battery across the terminals and listening for a pop in the headphones, but I am skeptical of that approach. Any suggestions would be much appreciated.

JohnS_AZ:
I've done the 1.5V battery thing many, many times.

Zero999:
The 1.5V battery will work but don't do it with the phone in your ear - it's really loud.

Simon:
you can sometimes use you meter in low ohms mode

Zero999:
That won't tell you which is left and which is right though.

Navigation

[0] Message Index

[#] Next page