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I have had a Sharp AQUOS LC-46PD7X for over three years and just a couple of days ago I started getting a problem where I turn the TV on and it either displays a digital channel for a couple of minutes and then loses it, or it just doesn't display a digital channel at all. When this happens I cannot change channels as the TV does not respond to channel changes via the remote control or the TV buttons. I can change to other inputs using the remote but when I go back to DTV I can't get a digital channel. The next day I turn on the TV and it works perfectly well. This has happened three times in the past week where one day it works perfectly well as it has done for three years and the next I cannot get a digital channel. I have checked the antenna cable and it appears to be fine. I have checked all the cable connections and they appear to be fine. I am wondering if there is a known bug in the firmware and whether there is a fix for this? Otherwise has anyone had this problem and would you have an idea of what the problem may be?

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Hi ibrahl,

I too have the same model and vintage and have been experiencing low signal problems for quiet some time now. It only became apparent when we hooked up the ps3 playTV unit and the digital channels we were having problems with on the Aquos was broadcasting fine. Both devices use the same antenna connection so its not an aerial issue.
I tried reset back to factory settings and reloaded the channels via auto but now those digital channels I had problems no longer appear on our channel list so they're gone for now. I was wondering the same thing about firmware updates but havent found anything on the Sharp website. Found this video but this model uses USB for updates">

Posted on Feb 24, 2011

  • peteFixIt Jun 03, 2016

    In the end my issue was the installation of a cable splitter. The signsl wasn't strong enough to carry throughout the house hence why the Aquos would lose out sometimes. Rather than invest in a costly booster I terminated the extension as that part of the house no longer needed a tv signal. My Aquos has been working fine ever since. Even 7flix now appears.

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because of the small compact circuitry that component can not be reliably repaired.
To keep the tuner functioning, you would need to replace the main board-
or hook up using an AV input or Component input or HDMI.

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Most locations are real hard to get local stations using indoor antennas. If you are in a location where you do not have cable, I would try either a outside antenna on the roof or go with Direct TV Dish / Dish Network system.
I hope this helps,
Skyassoc

Posted on Jan 05, 2010

Testimonial: "Thx for your help, I wondered if tou thought If I could put an outdoor antenna on our balcony, seeing as I have no roof access and another apt. above "

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