Question about Klipsch Promedia 2.1 Thx Computer Speaker System

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Lost sound in left channel?

Lost sound on left channel. Speak ok, connection ok. No obvious burn spots on circuit boards. All caps intact. Any other suggestions to check?

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I presume you are playing a stereo cd. Plug some other device, like headphones in to see if the computer is putting out stereo. Use the same plug as the speaker system is plugged into.
I presume you have swapped the speakers to test them.
If the speakers work, and the headphones work, it's the amp.

Posted on Nov 27, 2013

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i think you answered your problem / sounds like the board. some times you can smell the burn and some boards have clicking sound . / from what you have stated . i would replace board. mm the burn is the price of the board .. mm

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Right channel won't play on stereo amplifier


In old stereos the first things I look at are output transistors, solder joints and electrolytic capacitors. If you know how to solder, bad solder joints are pretty obvious. If you need a tutorial on how to spot bad solder joints, look here.

http://www.kingbass.com/soldering101.html

As for bad caps, look here. The info is aimed at computer motherboards but still helpful.

http://www.badcaps.net/pages.php?vid=5

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