Now it dont all ways happen all day its very odd.
some times if I turn the TV on its ok for a little bit then its starts or sometimes it will get better through the day (I must add that the sound NEVER DROPS OUT ITS PERFECT) just the picture does what you see in the video.
Sometimes when the scene changes as you can see in the video the picture will come back and be perfect but then when the scene changes it can start to flicker or dissapear again.
But the really wierd thing is on the RGB (PC) connection its perfectly fine its does not do it at all with videos/games any thing so RGB is fine.
I have not been able to test the HDMI ports as I have not got any thing that uses HDMI.
I have had a look at the board the scart sockets go into and the solder points on the back look ok to me.
At first I thought the backlight inverter was faulty, but if you say its fine on rgb, then I'm gonna say that the rf receiver is probably the culprit, theres not a lot you can do without very fancy gear except check the connections etc.
Try another tv on the same aerial, just to make sure its not something silly like a fat seagull has bent your aerial.
take the back off and if you find any bulging capacitors, replace them, and then replace all of the capacitors which were manufactured by the same company.
Seeing your OSD is stabile but the video is not I would try a different video input.
also the video from the VGA computer is perfect.
I would suspect the input is bad that you are using.
are you using a cable box with a HDMI cable
or a antenna?
I do not think you have video processor problem or a power supply problem.
You could have a bad cable or a loose connector.
I would move the signal cables and see if the problem starts or stops when you move the cables.
you might have a bad solder joint on the connector on the TV.
I have to argue with a previous post and say with the further info it looks like a video processor or power supply issue.
The power supply may be repairable, the video processor less likely, a new board or scrap job, unless your well experienced in telly repairs.
You might be able to use the vga input and keep it going a while longer, that starts to get complicated though.
The supply probably has multiple rails supplying various circuits, one of these rails may be at fault.
That said I dont think I can diagnose at a distance any further on this telly, apologies.
First do a visual inspection. I would open up the set and check all the connectors and look at the circuit board for a cracked solder joint or burnt components. You can re-flow any suspect solder joints. I am not a professional TV repairman but I have fixed a couple of sets like this. I once found a cracked pcb and had to jumper a couple of broken traces. It worked fine afterwards. Look for bulging electrolytic caps or cracked ceramics and resistors.
Make sure you unplug the set before working on it and be careful of any stored energy!
hi there yeah I aint no expert on electonics but I have fixed the same tv 2 years ago bulging caps all of them on the main power supply board fitted new ones and worked perfect till a couple of monthes ago when this bloody problem started .
I'd start by first checking for cold solder joints on the tuner board then check the caps. Check all voltages coming off the PSU without a load connected to them.
If the telly is a year and a half old and you are based in the UK, I'd take it straight back to the retailer and ask for it to be replaced or repaired under the sale of goods act - the item hasn't lasted a reasonable time therefore isn't fit for purpose.
I got it second hand and when I got it it had a fault
It would not turn on for ages and whe on it was fine.
As I am sure you all know it was the capacitors on the PSU board
I replaced them all and it worked perfect for a year.
Now this has started and I am gutted as every thing else is great.
Should I look for a replacment board that has the VGA,Scart,HDMI ports on what is that board called?.