Question about Hitachi 46UX24B/25K 46" Rear Projection Television

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Complete loss of audio; video is o.k. Mute command seems to work b/c if mute, the volume icon will change color and tv will bring forth the dialogue; however, the audio is totally silent at any volume level. Lost audio last night during a program. Tried all menu commands and resets but no luck restoring audio. TV is not utilizing wireless speakers, just internal system. Model Hitachi 46UX24B/25K projection color tv app. 15 years old and never previously problematical.

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  • Hitachi Master
  • 11,800 Answers

In that case the internal audio amplifier has failed - most likely the power IC has died, it happens. All you need to do is to locate it - follow the speaker wires to the board, next to where they plug in you will find an IC with a radiator = unsolder it from the board then go to a hobby/electronics shot (or search for an replacement online) and get an identical one, solder it back and attach it to the radiator. That is all.

Posted on Sep 14, 2010

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