PICTURE GOES OFF AFTER A FEW SECONDS. SOUND OF TV

I've had similar for a long time, now the picture only lasts a few minutes or seconds. Have to turn the TV off, wait 5 minutes, turn it back on. That's with Sky HD. Used to be the same with SCART but I don't use that any more, and I get it with the Wii on Component. However HD DVD and Blu Ray players are no problem!

See my post here - http://www.avforums.com/forums/lcd-led-lcd-tvs/1622157-samsung-f71-flashing-pattern-fault.html

Way out of warranty but really just need some repair expert to tell me what needs fixing. Taking the cover off there are very few components and look easy to replace, and seen some on ebay. A fix from Samsung would be vastly in excess of the value of the TV.

Switch your Default audio device to the High Def one. That should fix your problem.

HI:
Seems have no Y-Drive, Check and or replace the Main Y-sustain board.

Hi,
I assume that you have attached it via SCART cable...since SCART plugs have 21 pins, and carry video, audio and switching signals ,sometimes a bad connection on either TV side or Top Box side ,the sound goes off first..Make sure your SCART plugs securely fit to either side.
If it does not help pls visit the URL below for further advise before going to blame the Top Box....
Hope this helps! Take care and please Remember to rate/vote and give me
4 Thumbs Up for me to continue for Helping out the Community :)
Thanks
------------
Set-top Box Connection Advisor This page is designed to help you with connecting your Freeview, BT Vision, Virgin Cable, Freesat or Sky satellite set-top box to your home TV system. http://www.radioandtelly.co.uk/connecthelp.php

Hi my name is Roety,
I can help you with your issue ,
Sounds like a lamp going bad
No model listed makes it hard to guess here　
　
　
If I have helped you with your issue
If you have more questions you can still respond
I will reply asap
Thanks

I’m happy to help further over the phone at https://www.6ya.com/expert/eric_ab7c09ec01841771

If you select component in on the tv, this should give you a picture,using the current set up. As for audio, depending on the tv, have you used audio in on the tv, or audio out?
It sound obvious but I (even after 5 years+ of installing tv/vcr/dvd) still get caught out with input and out put.
I am unfamiliar with Sansui dvd, if it has a scart connection on the back then yes you can connect to a spare scart on the tv. If it has the single yellow phono for video and the red/white phonos for sound, you can buy a scart to phono lead and use that, not to confuse with the component(blue/green/purple) connections. You cuold also connect the yellow/red/white phono to the same on the tv front/side or rear if available.

With your PS3 on standby (red light) hold the on/off button down until it goes green and then back to red. This restores your PS3 to "factory settings", i.e. it is waiting for you to tell it how you want it to connect to your TV. Now disconnect any HDMI cables you may be trying to use and connect your PS3 to your TV via a scart connection. Now switch your PS3 on and turn to your AV channel and you should have both sound and pictures.

How old is the TV and what kind of video source are you running through it

Hi,you have not said weather you are using a scart lead(euro connecter)or an RF lead,if you are using the later don't,please connect the vcr to the tv via the scart to scart euro connecters,use a good quality scart lead(the thicker the better)as the thicker ones generally are 21 pins connected meaning it should be auto switching so as soon as you play a tape it will come straight on.

have you tryed replaceing scart leads plus check if there in a priority order 2 like going form dvd 2 tv then tv 2 sat recever try going via sat recever then dvd then you tv if that dose not seem 2 solve you problen it might seen you might have dry solder point inside you dvd unit if so take bk where you buy it from and explane to then wat is happening hope helped