Question about Hitachi UltraVision CineForm 55VG825 55" HDTV

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Sound shuts off. TV model 61SWX12B

When you turn the tv on the sound works, then noise comes up and the sound shuts off. it's comes on and off with the noise. After like 1/2 an hour it stays normal, but the sound is very loud before it goes to normal and i can hear the tv good. when i do the sound test and after is good only the follwing speakers work: FL, C, FR. The following speakers don't work:
SR, SL, SW. I don't even know where the ones that don't work are located inside the TV. Any ideas how i could fix this?

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  • Hitachi Master
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If this set was made around 2000 it may be the audio module that is no longer available---They had all kinds of troubles---if your set has this board (looking from the back of the set with the cover removed--unplug set first) it will be mounted above the main boards on the left wall of the cabinet---it is about 5 x 6 inches in size.

Basically the problem with these was they crammed a lot of stuff that gets hot on the board and solder problems develop---

You find this board you really only have a few choices--You can have the board removed and sent to a company called PTS ELECTRONICS WHO will repair/rebuild the board for you--You can find them on the internet.

This board has several plugs and only 2 or 3 screws hold it and the metal frame for it to the inside of the set----Hitachi had detailed instructions for this repair on their technical site---I along with several other techs who looked at this decided considering the amount of time to try to fix it---it was cheaper just to send it out for rebuild---PTS should have a 800 number and can give you a quote for this service.

Let me know if you have ANY questions or need advice. Any good TV tech who actually looks at this set will be familiar with the problem---The first one I saw was a brand new one with no sound from right speakers, right outs etc.

REGARDS, SD TECH

Posted on Sep 25, 2009

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Posted on Jan 02, 2017

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-------

Now that I typed the model number there are threads everywhere people saying the same issue exactly as me, I will read them but please someone tell me is there anything I can do...
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