Samsung TV & Audio HW-S800B Ultra Slim 3.0 Channel 360 Watt Soundbar with Dolby Atmos and Bluetooth NO SOUND Error Fix: Soundbar On But No Audio Output

Error code NO SOUND on the Samsung TV & Audio HW-S800B Ultra Slim 3.0 Channel 360 Watt Soundbar with Dolby Atmos and Bluetooth means: Soundbar On But No Audio Output. Soundbar is powered on, display shows an input mode, but no sound from any speaker. Systematic check: (1) increase volume — soundbar may be at 0 or muted (check for "MUTE" on display), (2) verify correct input source — press Source button to cycle through inputs, (3) for ARC: check TV sound output setting, (4) test with Bluetooth from phone to isolate — if BT audio works, the issue is input-specific, (5) factory reset: press and hold Play/Pause 5+ seconds until "INIT" appears, (6) if no sound on ANY input after factory reset, internal amplifier or DSP has failed — hardware repair needed. Check speaker connections internally are not loose (rare manufacturing defect).

The most successful fix is "Replace Internal Amplifier or DSP Module" (hard difficulty, ~90 minutes). This fix costs nothing. HomeMD has 2 community-ranked fixes for this error.

This error is rated high severity. You should address it promptly — continued use could cause damage or safety concerns.

Yes — the top-ranked community fix ("Replace Internal Amplifier or DSP Module") is rated hard difficulty and takes about 90 minutes. Tools needed: T10 Torx screwdriver, Multimeter, Plastic pry tool.

DIY cost: $0. Professional repair typically costs $250-$350. Many homeowners save money by trying the top-ranked community fix first.

The Samsung TV & Audio HW-S800B Ultra Slim 3.0 Channel 360 Watt Soundbar with Dolby Atmos and Bluetooth has 8 other known error codes, including: ARC (HDMI ARC Input Mode — Connection Issues), ARC NO AUDIO (No Sound via HDMI ARC/eARC Connection), AUDIO DROPOUT (Audio Drops Out Intermittently), AUTO STANDBY (Soundbar Auto Powers Off After 15-20 Minutes), BT (Bluetooth Mode Active), and 3 more.

Error code NO SOUND also appears on 2 other Samsung TV & Audio models: HW-B650 3.0 Channel 330 Watt Soundbar with DTS Virtual:X and Bluetooth, HW-Q990C 11.1.4 Channel 546 Watt Soundbar with Dolby Atmos, DTS:X, and Wireless Subwoofer. The fix may vary by model, so check each model's specific page for tailored repair steps.