Question about Philips HTS3450 System

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NO SOUND THE SYSTEM WAS WORKING FINE. NOW THERE IS NO SOUND AT ALL. I CHECKED THE CONNECTIONS I BELIEVE ARE WORKING. THE DVD IS CONNECTED TO COMCAST CABLE AND THE THE TV. THE LIGHT ON THE SUBWOOFER IS RED WHEN IT IS ON. IT WAS GREEN BEFORE THE SOUND WENT OUT.

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  • hansenjpsr Jan 06, 2009

    Yes they are working.

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Hi, somwhere one the back of the unit there should be a small red push button see if it is poped out if so push it back in , if non that means the sound amp inside the unit has over heated and blown the sound card . therefor you would have to replace it . hope this could help you.

Posted on Jan 06, 2009

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There are two 470uF/25V capacitors on the power supply board in the sub-woofer that are the cause of buzzing, crackling and then eventually no sound. Go to Radio Shack and buy two Catalog #272-1030 470uF/35V capacitors and change them out. They are in the middle of the Power Supply PCB and are close to the long flat aluminum heatsink. As far as installation instructions go; you have to have some soldering experience, first. You will also need some type of de-soldering device, be it a solder ****** or solder wick to remove the caps. Make note of the polarity before removing. Then it is just a matter of popping the new ones in (they are slightly larger than the originals so they might not go all the way down flush with the PCB) and soldering them back in. Make sure you do not make any solder shorts or your system will be toast! Your unit will be as good as new and will probably last forever now.

Posted on Jan 06, 2009

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Are you speakers and subwoofer working? Try them out in another system or computer to see if your speakers work.

Posted on Jan 06, 2009

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