Troubleshooting: HDMI & video

Real buyer questions on troubleshooting: hdmi & video, answered in plain terms.

Why do some TV apps give surround sound through my AVR but others only stereo?

Normal, not a fault. When audio routes through the TV, each app is on its own, and three things must cooperate per app before surround reaches your AVR.

Troubleshooting: HDMI & video
The sound doesn't match the actors' lips. How do I fix lip-sync delay?

Lip-sync error is a processing mismatch, not a fault. TVs take longer to process video (scaling, motion smoothing, HDR mapping) than AVRs take to decode audio, so the voice arrives a few tens of milliseconds before the lips move. Once set, it rarely needs touching again.

Troubleshooting: HDMI & video
Sound (or picture) cuts out for a second every few minutes. What causes intermittent dropouts?

Nearly always the connections, not the electronics. A momentary dropout every few minutes is a link renegotiating, not an amplifier failing.

Troubleshooting: HDMI & video
One speaker has stopped working. How do I find out whether it's the speaker, the wire, or the AVR?

Isolate by swapping. No tools, no multimeter, and in three steps you will know whether it is the speaker, the wire or the AVR channel.

Troubleshooting: HDMI & video
I connected my AVR between my source and TV and now the picture blinks or won't appear. Why?

That is an HDMI handshake failure: the copy-protection (HDCP) and format negotiation between source, AVR and TV is not completing, so the picture blinks, drops or never arrives. Common, fixable, and almost never a sign that anything is broken.

Troubleshooting: HDMI & video
My AVR is on, the source is playing, but there's no sound from the speakers β€” where do I start?

Work the chain from the AVR outwards. In our experience this finds the fault in ten minutes, and it is almost never a dead amplifier.

Troubleshooting: HDMI & video

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