Question about Sony Grand WEGA KDF-55XS955 55" Rear Projection HDTV

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How do I fix an HDMI input that has stopped working

Sony Grand Wega KDF-55XS955. I have been using an HDMI port to connect back and forth from my PS3 and computer and it worked for quite some time. Then one time I was switching between them and the tv stopped acknowledging that there was anything connected. I've tried multiple other devices and switched the cable but the result has been the same. I have used the same devices and cable with the 2nd HDMI port and the TV acknowledges them fine. Anyway, I'm not sure how to fix this problem. PLEASE HELP!!

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This sometimes happens on my Samsung tv. With the tv switched on try unplugging the tv from the mains supply and leave for 3 minutes then plug back in and try. I hope this helps.

Posted on Nov 16, 2013

Testimonial: "Wow. It seems to have worked with one additional note. After plugging back in I had to rotate inputs until I came back to that one and then it showed up. Thanks VERY MUCH for the no cost solution."

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ctf1800
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SOURCE: Sony Grand Wega KDF-E050A10

Authorized sony repair center told me the problem was the Q Box. Ever heard of this? Part runs about 300 bucks. TV is out of warrenty as it is 2 years old. Do you think it is worth it to fight sony and get them to replace the part or just fix the TV?

Part Number is A1167541A, service rep called it a Q Box in the diag, however the web says its the b block assmy.

read this if you think it's the same problem

Posted on Feb 01, 2008

  • 1 Answer

SOURCE: Sony KDF-55xs955 TV will not turn on. Red LED flashes 6 times.

Where is therm fuse location

Posted on Jan 30, 2009

  • 195 Answers

SOURCE: Sony Grand Wega- Red light Blinking

I would have to say you have a bad projection lamp!! They do NOT last forever!!! About 3000 hours is normal. If this is out of warranty--about $300 in--house repair or so.

Posted on Oct 10, 2009

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My hdmi input does not work, I see strobing lines when PS3 is turned on. All other inputs seem fine, What is going on?


Hello. The most common cause of the problem you have stated is a bad HDMI cable. Borrow a cable and install it to check and see. regards, Joe

Feb 04, 2010 | Sony Grand WEGA KDF-55XS955 55" Rear...

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Models: KDF-60XS955 / KDF-55XS955

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on May 08, 2010 | Sony Grand WEGA KDF-55XS955 55" Rear...

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Models: KDF-60XS955 / KDF-55XS955

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on May 08, 2010 | Sony Grand WEGA KDF-55XS955 55" Rear...

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My Sony Wega KDF-55XS955 55" was going on for 1-2 minutes then going black with no sound and after a few minutes would come back on. After reading all the posts and talking with a repair guy I replaced the bulb and that fixed the problem.

Aug 24, 2009 | Sony Grand WEGA KDF-55XS955 55" Rear...

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1 Answer

Sony Grand Wega KDF-E050A10


Jkae it sounds like your hdmi tuner, I had the same problem on mine and thats what it was most likely your's went out like mine.

Hope this helps good luck

Oct 30, 2007 | Sony Grand WEGA KDF-55XS955 55" Rear...

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