Sound does not come out on left side. This headphones are used on a keyboard. I tested them in a different equipment and the left side still did not work.

Sounds like it might be mono output. You can get a mono to stereo adapter, but of course you will hear the same in each headphone.

There is different between mono or stereo jack.. not all device support both type jack.. I suggest you check your device too.. all the best.. :)

Try headphones... do you get sound both sides (assuming your PAN controls are centered.???
Now do same with the main output cables discoonected... do you get headphones both sides???
Next solo or PFL a channel... do you get sound both sides???
Answer me these as they are tests that I can do some isolation using the circuit schematics. Make sure to answer all three conditions.

Hi Mike,

The spec say it has a built-in microphone. If you are using Windows, open the sound controller and check that the slider on the microphone is turned at least half-way up. When you open the sound controller (speaker in the systray next to clock), the microphone is normally muted. To test, unmute and tap the microphone or speak into it. Make sure you have the volume turned up on the speakers too.

The dv1000 notebook is equipped with:

• 1 Type I/II PCMCIA card slot. I store my Media Remote control. (left side)
• 1 IEEE-1394(Firewire) (right side)
• 3 Universal Serial Bus (USB 2.0) (Two on the right side and one on the left)
• 1 Built in 6-in-1 digital media reader (No Compact Flash)(Right Side)
• 2 headphone-out (front)
• 1 microphone-in (front)
• 1 TV-Out (S-video) (right side)
• 1 RJ-11 (modem) (left side)
• 1 RJ -45 (LAN) (left side)
• 1 External VGA monitor port (left side)
• 1 expansion port for use with HP Expansion Base(sold separately). Available only with Intel Extreme graphics with productivity port (left side)
• Power jack (in the back)
• CD/DVD drive (right side)

I have this issue as well, you need to (depending on what software you use) duplicate the track and set one input to US-144MKII Left and the other to US-144MKII Right. As far as I'm aware, this is the only way to get an even sound..

Hi,,in most cases what causes one side of the headphone to work is because, the wire that is connected to speaker inside the headphone might have cut and it's not contacting properly.

What you will need to do is to open up the head phone (left),and check if the wire inside has not cut, If it has removed ,then you will need to put it back with soldering iron and a lead...

But if the wire inside has not removed and they are intact, then you will have to replace the left speaker .

Hope that helps...

Thanks for using fixya...

No, headphone burn-in is largly a myth. While it is possible, from a physics standpoint that the driver material could "break-in" some with use and age, the audible difference would be so slight that it would take specialized equipment to measure the differences, which would be so small as to be unrecognizable by human hearing. Any actual "differences" in sound quality over a period of time is largly based on perception, that is the user gets used to the characteristics of the device. This has been proven time and time again through double-blind tests.

1) unplug the headphones and check if sound is ok with laptop speakers
2) try different headphones

Hi peroty,

Two suggestions for you.

1. If you look at the headphone jack connecton do you see one or two black O-rings or black lines on the jack. If you only see one they are Mono headphones and you would only get sound out of the left side. If there are two black lines they are stereo headphones and you should get sound on both the left & right sides.

2. If after checking the headphone jack connection and there are two black lines on it then I would suggest try a different pair of headphones to see if a different set of headphones works fine.

If a different pair of headphones works properly the original headphones may be bad. If neither set of headphones work properly it may be the reciever that may need to be repaired.

I hope it's not the receiver, but let me know if you have questions.
Matt @ OneCall
www.onecall.com
twitter.com/onecalldotcom