Hisense TVs often lose HDMI ARC audio due to incorrect audio output settings or wrong port connections. The VIDAA and Google TV operating systems require specific ARC configuration to route sound properly to external speakers or soundbars.
Quick Answer
- Connect HDMI cable to HDMI 2 port (ARC-labeled port on most Hisense models)
- Enable HDMI Control: Settings → System → HDMI & CEC → HDMI Control ON
- Set audio output to ARC:
- VIDAA OS: Settings → Sound → Speakers → select ARC
- Google TV: Settings → Display & Sound → Sound → Audio Output → select ARC
- Disable TV speakers if using soundbar
- Set digital audio to PCM if sound cuts out: Settings → Sound → Digital Audio Output → PCM
Symptoms
- No sound from soundbar or AV receiver when using HDMI ARC
- Sound plays through TV speakers instead of external audio device
- Intermittent audio dropouts on connected sound system
- External audio device shows "no signal" or doesn't recognize TV connection
- Sound works with regular HDMI but not ARC connection
Quick Checks
- Verify HDMI cable plugged into HDMI 2 (ARC) port on TV
- Check if soundbar or receiver displays ARC connection status
- Test with different HDMI cable rated for ARC/eARC
- Confirm external audio device supports ARC functionality
- Power cycle both TV and audio device
Step-by-Step Fix
-
Connect to correct port
- Plug HDMI cable into TV's HDMI 2 port (labeled ARC/eARC)
- Connect other end to soundbar or receiver's ARC port
-
Enable HDMI Control
- Press Settings on remote
- Navigate to System → HDMI & CEC
- Turn HDMI Control ON
-
Configure audio output (VIDAA OS)
- Go to Settings → Sound → Speakers
- Select ARC from speaker options
- Turn TV speakers OFF if using soundbar
-
Configure audio output (Google TV)
- Open Settings → Display & Sound → Sound
- Select Audio Output
- Choose ARC from available options
-
Set digital audio format
- Navigate to Settings → Sound → Digital Audio Output
- Select PCM first to test basic functionality
- Switch to Auto or Bitstream after confirming sound works
-
Test audio
- Play content with surround sound
- Verify audio routes to external device
- Check volume controls work properly
If Hisense ARC Still Not Working
Update firmware: U8K models need firmware 2024.12+ to fix eARC dropout bugs. Check Settings → System → About → System Update.
Try different audio formats: Switch between PCM, Auto, and Bitstream in Digital Audio Output settings. Some soundbars work better with specific formats.
Reset HDMI handshake: Unplug HDMI cable for 30 seconds, then reconnect. This forces devices to renegotiate ARC connection.
Check cable quality: Use HDMI 2.1 certified cable for eARC features. Older cables may not support full bandwidth.
Factory reset audio settings: Settings → Sound → Reset to Default restores original audio configuration.
Consider upgrading to a certified HDMI 2.1 cable: Ultra High Speed HDMI Cable 8K (paid link) if experiencing persistent dropouts.
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FAQ
Why does my Hisense U7 ARC connection keep cutting out? Digital audio format conflicts cause most dropouts. Switch to PCM in Digital Audio Output settings for stable connection, then try Auto or Bitstream if you need surround sound formats.
Which HDMI port supports ARC on Hisense TVs? HDMI 2 supports ARC on most Hisense U6, U7, and U8 series TVs. The port is clearly labeled ARC or eARC next to the connector.
Can I use regular HDMI cable for Hisense ARC setup? Basic ARC works with standard HDMI cables, but eARC requires HDMI 2.1 certified cables for full Dolby Atmos and DTS:X support. Use High Speed HDMI minimum.
Why won't my soundbar turn on automatically with Hisense TV ARC? HDMI Control (CEC) must be enabled on both devices. Check Settings → System → HDMI & CEC → HDMI Control is ON, and verify your soundbar's CEC setting is also active.