Question about Sony Bravia KDL-42V4100 42 in. LCD TV

1 Answer

My Sony Bravia LCD TV lost it's video input tonight in the middle of a TV show. There's sound but no picture. It says "No Signal. Check external input or choose another ..." I've tried using the wii and Blue Ray (PS3) and it's the same exact situation. Audio but no video. This TV is only about 2 yrs old.

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1 Answer

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  • Sony Master
  • 2,800 Answers

Sounds like main board issues

Posted on Dec 03, 2017

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6 Suggested Answers

6ya6ya

6ya staff

  • 2 Answers

SOURCE:

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Posted on Jan 02, 2017

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Mike258

Justin Case

  • 1498 Answers

SOURCE: PC input to Sony Bravia - from Sony Vaio Laptop - unsupported sig

Hi Julie,
There are a couple ways to go here. I'll give you the procedures step by step. If you want clarification on anything, just ask. If I make an assumption that is wrong, stop me and let me know. The more you know, the easier this will be for both of us.

First I'd like to double check on MisterSony's diagnosis. Refresh rates that are too high end up as a black screen on many LCD models.

This is my first assumption, the display settings are currently for both monitors. Your original screen is still functioning.

If so,

  • Right click on your desktop
  • Click Properties
  • Click the Settings Tab
  • Click the Advanced button
  • Click the Adapter Tab
  • On the lower part of that tab, there should be Refresh Rate. If it is not at 60 Hz, try to change it to 60 Hz.
  • Click OK
  • Click Apply
  • A pop up may appear asking if you want to keep the changes. Accept the changes.
Get back to me with the results. If it was already set at 60Hz. We go to the next step.
Mike

Posted on Nov 16, 2008

Anonymous

  • 98 Answers

SOURCE: sony bravia klv-32t400a hdmi input through x-box

The problem is that, according to the specs for that TV, it doesn't support 1080p.
That's a 720p television you've got. (Specs here)
While the specs say that it supports 1080p, the resolution says it supports 1366 x 768, which is only 720p, not 1080p or even 1080i.
You may want to contact Sony for clarification, because their specs for that tv are contradicting each other.

Posted on Mar 19, 2009

Jose Garcia

  • 453 Answers

SOURCE: Sony Bravia 46S2010 LCD backlight ok , no video

yes it is

Posted on Jun 18, 2009

philipk

  • 630 Answers

SOURCE: my sony bravia has no audio when used as cable tv

Check the connections between the cable box and the TV. If you are using scart check the connector is in squarely if using rgb or composite you need a separate audio connection using the red and white phon sockets.

Posted on Nov 08, 2009

Anonymous

  • 1 Answer

SOURCE: 40" Sony Bravia has intermittent audio failure.

I have a KDL-46VL130 with the same problems. Audio on the HDMI connection turns on and off intermittently when I have it connected with my ATT Uverse rcvr. I check w/ Sony online support and they led through the standard troubleshooting process ... which I knew going in would not fix the problem. Ultimately they told me to try a new HDMI cable first, or try a different video source for the HDMI, other than my ATT U-Verse reciever and see if the problem persists. Having seen other articles on this issue, i am almost certain that is not going to fix the problem... and to think that I paid $2000 for this thing.

Posted on Jan 25, 2010

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1 Answer

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green connection but make sure they're all tight. RCA cables
tend to pop out part way which is enough to stop the signal.
If the green signal is lost, you get no picture. If the red or blue
are lost, you get a picture with bad coloring.

If you still have the problem check this
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1 Answer

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