kdl-40bx420 lcd panel supplier

Good ole LCD TV screens are becoming a little scarce these days much to the detriment of the value oriented consumer. LED backlit LCDs command a much higher price in the marketplace. They capture the eye in the stores when consumers first see them, and the colors can be very vibrant when contrast is turned up. Most of all this progress though in LED TVs is just to catch up with good ole plasma technology in black levels and side angle viewing. LCD TVs are like California wine – even the lower priced value oriented LCD TVs arent bad. The KDL-40BX420 is not going to blow your socks off, but the picture quality is fine for most purposes. You will sacrifice a little in the black level depth, the processing speed and see some motion artifacts and judder present. But really what an improvement over just two years ago. Flourescent is not a nasty word in my dictionary.

If the backlights turn on before the 6X shutdown occurs, it is safe to assume that the inverter circuits are functioning and one of the lamps failed to ignite. Replacing the LCD panel is necessary. If the backlights never turn on before the 6X shutdown, the inverter has failed. If the inverter is available for replacement, replace the inverter. If the inverter is not available, replace the LCD Panel.

Do not replace the panel yet ;-) but start with the inverter. Here is what they look like as well as an idea about the price. If you have trouble finding it, post some images of your board etc. with your question so we can see what you see. Use this guide Adding images to an existing question for that.