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Home › OLED TVs

Sound over ARC suddenly stopped working on my LG OLED 55 CX (OLED55CXPSA)

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fedeffedef Member
November 2020 in OLED TVs
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Hi guys! I'm in desperate need of help regarding this issue, I'd really appreciate any help/advice you could send my way


Configuration:

  • Tv: OLED55CXPSA (latest firmware)
  • AVR: Yamaha RX-A860
  • 8k Certified HDMI cables


Problem:

After unplugging my tv from the wall and plugging it back in my AVR stopped receiving the sound signal from the tv through ARC


Things I did to try to fix it:

  • Unplugged the TV and wait for hours
  • Factory reset
  • Activate Simplink
  • Tried using a different OLED tv to test if the problem was the AVR but It worked ok with ARC
  • Unplugging the tv, unplugging all the HDMI devices, plugging it back in with just the ARC hdmi
  • Reset AV settings (pressing mute 3 times)
  • Changing the sound settings on the TV
  • Tried different HDMI cables


Well, I think that's all! Again I'd like to thank you in advance for any help you could provide!

Tagged:
  • arc
  • ATMOS ARC SIMPLINK
  • HDMI ARC
  • CX
  • cx series
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Answers

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  • ▲ 0 ▼
    niclasniclas Member
    November 22, 2020, 8:22 am edited November 2020

    Hi @JamalofLG

    is it possible to get some response here? :(

    unfortunately I have reported a similar problem and would like to know if I received a device with a defective HDMI port...

    https://lgcommunity.us.com/discussion/15377/lg-cx-drops-arc-after-a-few-seconds-or-dont-play-any-sound-no-sound-with-philips-fidelio-e6-12#latest

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