Question about Hitachi HTD-K170 System

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Hitachi HTD-K170 - Lost subwoofer and rear speakers

Anyone, I just switched on my 2yrs Hitachi system and realized I have lost the subwoofer, rear speakers and central one as well. Left & rights are ok, subwoofer plugged on the left and right slot and the speaker (subwoofer) works fine... so it is the signal.... Any idea? Maybe misconfigured? Maybe I changed wrongly any configuration? Thanks Marioman

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  • frankharoun Jan 21, 2008

    the subwoofer, center speaker and radio dont work. all other speakers are working. I sent it to a repairer next street. He told me today he has discovered that an IC (dont ask me what ic means cos i dont know) is missing and that he is finding it difficult obtaining such ic on the market.



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  • Hitachi Master
  • 5,318 Answers

It could be you have occidentally changed the settings and switched those speakers off. If you can remember how to set up the speakers then do so. That should restore the settings. If it keeps happening there could be a fault in the system. But at the moment I don't think that is likely.

Posted on Sep 27, 2017


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Posted on Jan 02, 2017

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SOURCE: Hitachi 53SBX59b Rear projection TV out of convergence

from you bought the tv and notice that it has that stain on the edge you should have taken it back as it was covered under it is getting worse it will cost you to get it fix your tv has a factory will have to call the repair man to fix your tv.good luck.

Posted on Apr 26, 2007

  • 1 Answer


I have an old (1994) hitachi tv and the controls are located under a panel on the lower front that flips down so you can access the channel and volume controls.

Posted on Mar 30, 2008

  • 10594 Answers

SOURCE: external speakers

Enter your TV model number in Hitachi Manual page and find required user manual.

Posted on Oct 01, 2008

  • 116 Answers

SOURCE: hitachi 55 inch plasma tv

what type of connector are you using fo your xbox? I think

Posted on Dec 13, 2008

  • 87 Answers

SOURCE: Spots on Hitachi 53SBX01BA

green tube has problem maybe bugs if your lucky and lens has to be removed. If your a novice at tv repair call a service center

Posted on Apr 29, 2009

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The 'Subwoofer' output on your receiver is used to connect to a powered subwoofer with a built in amplifier. Your KLH speakers use what is called a 'passive' subwoofer, it gets its power from the receiver and then passes the higher frequencies to the left and right front speakers after taking out the low frequencies for the subwoofer. A speaker system with a passive subwoofer is good for casual listening, but a powered subwoofer is required for really hearing low frequencies and rumble in movies. The KLH speakers you have were highly rated in their time for their price. The four satellite speakers and center channel speaker have very good sound compared to the little 'midget' surround sound speakers most people buy today.

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