Question about Sony BRAVIA KDL40XBR 40 in. LCD TV

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Problems with sony bravia lcd tv kdl 40xbr no digital channels did a all reset but did work but i do get the analogue channels, checked the aerial it is working, what else can i do ????

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We had this trouble with our sony bravia, had to get a repair man in to look at it and the digital tuner within the tv went cost $180.00 to have a new digit tuner put in.

Posted on Jan 17, 2011

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I am having same issue, and this is what I have learned, so far: Apparently, some of the earlier Bravias (mine is a 2006) has an issue with the F1 and F2 fuses on the Digital Tuner card. I decided to bite the bullet and open up the tv. The back came off fairly easily, and the card is in plain view. I believe it to be the same card that the coaxial connects to. There are two data connectors, top and bottom. after you free the card by undoing the screws, you will want to disconnect the bottom first by simply depressing the center of the connector and gently tugging to disconnect. The top data ribbon is a bit strange... the top of the connector rocks to one side, and the ribbon simply falls out. My card is part number A1164341A and is used on several of the tvs. I found it on Ebay for 10 bucks, inspected and tested. I just bought the card, so I don't know for sure that this is the problem, but I am fairly confident from what i have found out from researching the problem

Posted on Oct 14, 2011


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I have my Sony flatscreen (KDL-40XBR) attached to a Panasonic DVD recorder. I recently lost all digital channels on my TV and no digitial channels can be found when I do a full scan. I can still get...

From the looks of it the tuner seems to be malfunctioning. You are able to get picture through your DVD recorder because the signal is directly fed to the audio/video proecessing circuits , when you connect via the HDMI, Component or RCA ports at the back of the tv. Since this mode of connection also ensures better quality signal I suggest that you continue using it as this problem can only be resolved by replacing the main A/V board on which the tuner is located. The board costs about 100-125$ and is not very hard to replace. So if you wish to replace it, then let me know and I will give you the detailed instructions along with the link to the part.
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My Sony Bravia television froze on a digital picture today and now when I change channels there is no picture and no sound. I tried to do a digital scan and it picked up no digital signals,. The analogue...


Your TV has a dual tuner - one for analogue and one for digital although they are contained on the same tuner board. It's possible that the digital tuner has failed, in which case the tuner board will most likely need to be replaced, but often this problem can be resolved with a "hard" reset. Turn the TV off and unplug it. Remove all the cables from the back, leave it for at least 5 minutes and then re-connect only the cable from the tuner source. i.e aerial/antenna. Make sure you are in Digital TV mode (DTV), then run the channel scan again.

If it works turn the TV off, re-connect all of your other devices and you should be able to resume using the TV as normal.

If this doesn't work, you may need to have the digital tuner replaced. The analogue and digital channel feeds are from the same source. As the analogue channels are working there is no obvious fault with the feed or cables.

Please try this first and then post back for further assistance if needed.


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(1)Reset your tv from setup menu then auto tune analogu chanel.
(2)if still no sound then update your tv softwear from sony site.
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Make sure that the TV is on the right setting, either TV for analog pictures, or DTV for digital. Run a complete auto-setup. This will wipe the tuner memory and re-scan. Hopefully this should sort the problem. If you have tested the aerial cable with another TV in place of that one (not just on a cable from the same aerial in another room) and it works but that one won't, then it will be down to a TV fault. If this helps, please rate me!

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Got to -

Menu -> settings -> set-up menu -. auto start up

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Any more problems, call sony. 08456000124 local rate number

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