The lightbulb high voltage power supply is detecting problem with the low voltage power supply or with one of the light bulbs and shutdowns in emergency. Open the monitor and check for inflated capacitors. Replace all capacitors even if only few are inflated. Light bulbs require further testing empowering them one by one with external high voltage por supply and their replacement is not easy. Have to open the LCD and then it's hard to clean the layers from the dust resulting bad spots on the image. Be careful and good luck.
Full 'make model (what it is)' in all questions please, first 3 words.
Capacitors can split or bulge, resistors can burn,, the transformer can fail internally..
Take it for repair unless you have the thousands of dollars of test equipment and have do the 2 year electronic course.
A communication error has occurred between the outdoor and indoor units. Faulty wiring or a malfunctioning control unit may be responsible. Contact LG customer service for assistance. Their number is 1 800 243 0000.
You will need to connect a single HDMI cable from your sound bar to the HDMI ARC or the HDMI eARC port on the Roku T.Make sure that both of the devices are both turned on.When your TV detects the sound bar,it will then automatically initiate the setting up process. Lastly follow the easy on screen instructions to finish setting up the connection.
