Picture goes black but sound is good after tv is on for 10 minutes, please help
Please check if exchancing powercord helps and preferably to other power connection.
Do check your signal generating device
Antenna - RF ?
Set top box (Cable or satelite)
DVD or VCR for broken connection.
They could be the cause also and not the TV.
A broken soldering on a euroscart connectort is treaseurous on a VCR or so. I open those up and check scart connectort on board solderings or check cable for loose connections.
If nothing there or you not technical enough call in a handy guy from the block before cleaned out.
Pls do not open your TV set, that gets ugly.
You like my advice, rate me, i am doing my best