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Urgent: Ultrasone HFI-650

post #1 of 2
10/15/09 at 3:00pm
Thread Starter 
Hi Fellows

I've got a strange problem. I tried opening my headphone ear-cups by removing the ear-pads and then the screws behind. I didn't even touch the small PCB with resistors. The left channel stopped working all of a sudden. I didn't do any modifications and all I did was just examining the speaker and driver assembly. Right channel seems to be working fine. The big problem I've got right now is I haven't got a multimeter around to check the continuity. I've just placed an order for that. In the mean while any tips for troubleshooting are highly appreciated.

Cheers....
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post #2 of 2
10/17/09 at 12:50pm
Thread Starter 
Update:

Each and every solder joint has been checked. Continuity has been checked using a multimeter. For troubleshooting I've tried using the right speaker by connecting it to the left channel and it worked as well. Problem seems to be lying inside the left driver/speaker assembly. Any help would be appreciated.

Cheers....
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