Need help with LG 55EA8800 Gallery OLED TV
I finally got around to mounting my new LG 55EA8800 Gallery OLED TV. I've been having this volume issue and can't seem to figure out the source of the problem. During normal viewing, my TV sound is set to "30" for average volume. However, everyday at random moments, when I turn on the TV, the volume would blast and spike to an unbearable level. The level setting remains at "30," but the TV is extremely loud. I would need to lower the volume to "3" in order to get the same volume level as previously. The only way to bring the volume back to normal is by unplugging the canvas speaker to reset.
Steps taken to troubleshoot:
1) Issue NOT coming from the source- I unplugged the HDMI cable and used it on a different TV. The TV volume works perfectly on the 2nd TV. I did test it on this 2nd TV while the Gallery OLED was working properly, so I would catch any volume disparity when this bug was happening.
2) Issue NOT coming from the TV motherboard- An LG technician replaced the TV's processor and issue isn't resolved.
3) I tried using a different optical cable while the bug was in effect. Didn't work.
4) I tried using a different power outlet for the speaker, even with a surge protector. Didn't work.
This leads me to think the problem is coming from the canvas speaker itself. But what's causing this? And how can the speaker be reset by unplugging? Can this be repaired? Should I try ordering a canvas speaker online? The TV is still under warranty and I'm curious how LG is going to approach this given it's a discontinued product.