Question about Altec Lansing ATP 3W Computer Speakers

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ATP3 intermittency problem

I have intermittency problem with my ATP3. I didnt know if it was because of the power switch that goes with the volume knob or a problem with the power suppply. What i did is to check on the supplies. i think its doin OK (output of the regulator is 9V) but it goes too hot.tried to remove the 7809 and measure the load for the 7809 and it read 50 ohms. is this normal? with the instruments that i have, I cant further isolate where the problem really is. cant opent the left satellire spkr. anyone who knows how to solve this?

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I've had intermittent speaker problems with these models and it was caused by slight abuse, ( stress on the speaker jacks at the main board located in the main subwoofer cabinet). The problem can lead you to believe its the speakers or the wires but in my case it was a loose solder joint on the main board in the subwoofer. I had to take the subwoofer apart and carefully re-solder the connections of the speaker jacks. I've had no problems since. I've also been a little more careful not to push the jack side of the connection against the wall, kicking with my feet etc..

Posted on Apr 18, 2009

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