Question about Hitachi P50H401 50 in. Plasma HDTV

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I have a hitachi p50h401 and sound went out. someone said update software how do you do that? Thank You

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Well if the sound went out it may have only effected 1 output source, What type source are you using, HDMI, RCA, Composite, DVI, VGA with mini adapter? If for example the HDMI, port you are using has simply lost sound to that port, HDMI carries both sound and video so simply moving to HDMI 2 or even 3 may solve this issue. Also i would suspect the cable you are using, HDMI cables are often defective. If you are using coax thru your cable company i would also change that coax from your tv to the hd box.

Posted on May 28, 2011

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  • jap3232 May 28, 2011

    hulk917 I am getting sound from my dvd player with surround sound. Cable company was here a few months ago and put new cables and box and checked everything and told me I had no sound anywhere. I thought it was a problem with the hd cable receiver but they said it is the tv. any ideas? TY

  • John Waters
    John Waters May 28, 2011

    Interesting, I have heard this problem many times, I use to work for Charter Com, Cable and Internet tech support, and this issue is always a cable, are you running an hd box and if so are your coming in from the box via hmi or coax?? Often thee are also SAP settings in some of the newwe models that will only effect your cable.

  • jap3232 May 28, 2011

    It was a charter rep that was here. I have a new hd box and he put new cables from the box to the tv the hdmi cable I think goes from my surround sound to the tv. He took the cables and checked the tv sound with both hdmi and the regular cables. also checked the settings on the tv it was all ok but no sound. I did have a bad hd box which was replaced. My screen would turn green when changing channels. I have a booster in the house because of signal strength and have had a few problems with the cable company

  • John Waters
    John Waters May 28, 2011

    Hmm i see a surround sound system is in the mix, try bypassing the surround sound system and go to the tv directly from the hd box and see if your getting audio from the tv itself. I would also consider using the color stream rgb cables to rule out a hdmi port issue. also did you check your sap settings in the tv itself if sap is on turn it off. often sap settings can trigger a silent mute.

  • John Waters
    John Waters May 28, 2011

    Also was wondering have you tried bypassing the hd box completely to see if basic cable without the box has audio. I worked for charter for about 5 years and have seen some pretty bad issues that often turned out to a misdiagnoses by the field tech whom installed the set up.

  • jap3232 May 28, 2011

    I know the rep did all you said he bypassed the box and went direct to the tv also the tv in the right hand corner has ypbpr:3 when you turn it on that is something that just started. You sound just like the last rep here. I am not sure about sap couldnt find it in the settings but I know the rep checked some things in the settings and reset them to factory start. TY

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If you wish to get some details; check the site linked here. Pull up older posts.
http://electronicshelponline.blogspot.com/
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