I am experiencing sound crackling on my TV - UE55TU7172UXXH. The sound output is via toslink cable to my amp. The sound starts to crackle after 2-5 minutes after startup (both devices simultaneously) and crackles for few times (5-10x) and then the sound is perfectly fine.
At the beginning I had that common issue of crackling - changing audio output to PCM solved it.
I've been trying to figure this with several methods.
Changed the optical cable
Factory settings on TV
The idea of invalid amp also came to my mind. Other inputs on AMP work perfectly fine however the optical could be defective. I've tried the