MediaLight Bias Lighting

Sony Bravia bug and bias lights turning on and off seemingly at random when the TV is turned off.

You've found this page because your bias lights keep turning on when your Sony Bravia is turned off.  

The good news is that there's nothing wrong with your bias lights. 

The bad news is that there's a known issue with the TV that has not been (and probably won't be) resolved by Sony (link to GitHub). 

 
wake up chart

If you attempt to power your MediaLight from the USB port on your Sony Bravia, the lights will turn and off at random when the TV is turned off. 

Some TVs might turn the lights off when the TV is turned off.  

Some won't.

And your Sony Bravia will the turn lights on and off at random when the TV is turned off.

"Don't other brands of lights turn off with the TV?"

No. Other brands of lights turn off only when they are unplugged or lose power. That's what you'd expect. If you unplug a lamp, it turns off.  Plug it in and it turns back on.  The lamp isn't doing anything. It's just lighting up when power is restored.

Every Sony Bravia TV does this. 

That's one reason why we include a remote control with every MediaLight Mk2 Flex. The MediaLight is also already programmed into many smart hubs and remotes including the Logitech Harmony ecosystem.

Solution: Use external power and program our remote into your smart remote or hub.

If you own a Sony Bravia, you should power your bias lights from an external source with the included adapter and use the included remote control to power your lights on and off -- or set a routine on your universal remote or smart hub to turn the lights on and off with the TV. 

"But, if I use the remote to turn the lights off when the TV is off, won't the lights stay off?"

When you power from the TV and turn off the lights with the remote control, instead of turning on and off, the lights will flash like a camera flash each time power is restored to the USB port.  It will then return to its programmed state.  So, if the lights were off, they will remain off until the power turns on and off again in 20 seconds. 

Avoid this issue by using the included adapter, dimmer and infrared remote control.

September 20, 2020 Note: We recently found a potential solution to this problem that requires the use of a different remote control and dimmer.  It's a bit bulkier than the standard dimmer, and the remote is not in the Harmony database, but if you are interested in using it, you can ask us to add one to your order at no charge. We may institute a small charge for this item in the future since it costs a bit more to manufacture, but it is free for the time being. 

Even with this solution, the lights will not turn off automatically with the TV, but if you power from the USB port, the lights will not flash when the dimmer is turned off. This is an improvement over the standard dimmer which would flash even when turned off. 

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