Sony Sony KD-43X85K 43-Inch 4K LED Smart TV NO SOUND Error Fix: No Audio Output — Picture Displays Normally

Error code NO SOUND on the Sony Sony KD-43X85K 43-Inch 4K LED Smart TV means: No Audio Output — Picture Displays Normally. The TV displays a picture but produces no sound from the internal speakers. First check that the volume is not muted and is set above zero — press the mute button on the remote. Go to Settings > Display & Sound > Audio Output and verify that the speaker output is set to TV Speakers and not HDMI ARC, Bluetooth Audio, or another external output. Try changing the channel or switching to a different input source. If sound works on some inputs but not others, the issue is with the specific source device or its connection. If there is no sound on any input, perform a factory reset through Settings > System > About > Reset. If sound still fails after a factory reset, the internal audio amplifier circuit or the speaker connections on the main board may have failed.

The most successful fix is "Perform Factory Reset and Replace Internal Audio Amplifier or Speaker Connections" (medium difficulty, ~60 minutes). Estimated DIY cost: $0-$15. HomeMD has 2 community-ranked fixes for this error.

This error is rated warning severity. It is generally not urgent and can often be resolved with a simple DIY fix.

Yes — the top-ranked community fix ("Perform Factory Reset and Replace Internal Audio Amplifier or Speaker Connections") is rated medium difficulty and takes about 60 minutes. Tools needed: Phillips screwdriver #2, Multimeter, Plastic pry tool.

DIY cost: $0-$15. Professional repair typically costs $150-$300. Many homeowners save money by trying the top-ranked community fix first.

The Sony Sony KD-43X85K 43-Inch 4K LED Smart TV has 8 other known error codes, including: 2 BLINKS (Standby LED Blinks 2 Times — Main Board / System Error), 3 BLINKS (Standby LED Blinks 3 Times — Backlight / DC Voltage Error), 4 BLINKS (Standby LED Blinks 4 Times — Power Supply / Temperature Protection), 5 BLINKS (Standby LED Blinks 5 Times — T-Con / Panel Communication Error), 6 BLINKS (Standby LED Blinks 6 Times — Backlight / LED Strip Failure), and 3 more.

Error code NO SOUND also appears on 4 other Sony models: Sony STR-AN1000 7.2-Channel AV Receiver with Dolby Atmos, Sony XBR-65X950H 65-Inch 4K Full Array LED Smart TV, Sony XR-55X90K 55-Inch 4K Full Array LED BRAVIA XR Smart TV, Sony XR-65A80K 65-Inch 4K OLED BRAVIA XR Smart TV. The fix may vary by model, so check each model's specific page for tailored repair steps.