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My TV has "No Sync Detected" across screen why?

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SOURCE: tv comes on but only displays 'no sync detected'

What are you using for signal and where do you have it plugged into?

Posted on Jun 08, 2009

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The Bravia menu comes up across my screen. It will go off when I hit any button on the remote; then come back on. the model # is KDL-32EX301. How do I get it to go away?


It's caused by the Bravia Sync feature. It doesn't always connect correctly. When there are issues then attempts to sync up cause the menu to appear.

The solution is to switch off Bravia Sync.

Go in to the TV's set-up menu, and choose HDMI Set-up.
Scroll down the menu list and choose Control for HDMI, then set the menu option to OFF

Let us know if that fixes the problem for you.

Sep 15, 2014 | Sony KDL32EX301 32 in. HD-Ready LCD TV

1 Answer

No sync detected


Your laptop has 3 video-options:
* output only to internal screen
* output only to external screen
* output to both screens

Press-and-hold the 'FN' ("Function") key, and press one of the F1-through-F12 keys, to cycle through the above 3 modes, until you get what you want.

Mar 07, 2014 | Norcent Technologies LT-2720 27 in....

1 Answer

"No sync detected" error displayed on teac plh4220sd tv screen when teac signal converter hd6820 accidentally turned off


Contact any service technician. That will be the best. It sounds like a main board fault.

Oct 09, 2013 | Televison & Video

1 Answer

My hisense model pdp4220eu no sync detected keeps coming up on the screen


Hi, Try unplugging it for 1 hour. This will reset all settings to default. This may fix it. if it does not, take it to TV repair.man. Good luck

Jul 24, 2011 | Hisense Televison & Video

1 Answer

When I turn on my LCD TL3220 the screen shows a 3" x 6" silver box that says "no sync detected". I have checked the cable box and that seems to be working. Any suggestions


The word ''no sync detected' means that there is no video connection between the cable box and the TV set. Isolate the source of trouble by connecting to the TV a prevoius video source that worked properly e.g DVD player. You should also try to get a new set of video cables as the ones you have may be internally broken.
Please follow the installation instructions carefully especially the colour codes of the video and audio cables i.e yellow cable to yellow connectors of TV and cable box , Red cable to red connectors of TV and cable box etc.
good luck!

Oct 09, 2010 | Hisense TL-3220 Television

1 Answer

Screen only displays a message that says, "no sync detected". This message is also displayed upside down. If I hit the 'menu' button on the remote, the menu is displayed on the screen upside down also.


Ur cable or satalite box it not getting the signal to ur tv.Unplug,replug the box about an hour,let ur boxes upgrade new software ur in comming tv broscast signal should return.

May 18, 2010 | Hisense TA42P-HDRA Television

1 Answer

Tv comes on but only displays 'no sync detected'


What are you using for signal and where do you have it plugged into?

Jun 08, 2009 | Soyo DYLT032D 32 in. LCD Television

1 Answer

No Sync Detected


Is this while trying to use a HD cable box, sat. rcvr, or DVD payer? Make sure the output is set a format the TV can do ie: 480i,480p,720p or 1080i. Some HD TV's cannot do 720p and possibly will say no sync.

Apr 06, 2007 | Protron PLTV-32 Television

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