LG C3 48 inch The sound fluctuates from very loud to soft, back and forth (same show). Happens with new and previous Roku . Called tech many times. Reset everything. Turned settings off/on. New cables. Increased internet speed. What else can I try? null

Question

LG Digital Customer Care · Accepted Answer

Thank you for raising your concern regarding LG Smart webOS TV (OLED48C3PUA) model. Experiencing sound issues on your LG OLED48C3PUA TV can be annoying. Here are some simple steps to try and fix the problem:

Check Audio Settings: Make sure all sound settings on your TV are set correctly. Turn off any sound modes or enhancements in the menu.

Perform Sound Self-Diagnosis: Use the built-in feature on your LG TV to check for audio problems. Go to "All Settings" > "Support" > "OLED Care" > "Device Self Care" > "Sound Self-Diagnosis."

Reset AV Settings: Press the Mute button on your remote three times to reset audio/video settings.

Power Cycle Your TV: Unplug your TV for 60 seconds, press the power button for 30 seconds, then plug it back in.

Update Firmware: Make sure your TV's firmware is up to date by visiting the LG website or referring to the user manual for instructions.

If problem persist, please reach out to us on social media @LGUSSupport so we can help you further. ^Cris

Answer

I have the same tv . My tv does the samething . I tried all settings nothing works i reset to facorty setting multiple times . Played with all sound modes and setting nothing helped.. i sesrched web over and over. All results being answered were based on tv being used qith external sound and or with hdmi and soundbars aswell as the problem happening when watching channels.. in my situation i am using the tv speakers not external speakers. I am watching from the apps on the tv. I am not watching or listening from external device like box top or roku that is connected through hdmi cord to hdmi inputs. Im just on tv apps internal spoeakers and i have same problem that persists even after trying every thing possible,

Answered by Anonymous 1 year ago

“LG C3 48 inch The sound fluctuates from very loud to soft, back and forth (same show). Happens with new and previous Roku . Called tech many times. Reset everything. Turned settings off/on. New cables. Increased internet speed. What else can I try?”

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