There is a preliminary inspection method for LCD screens often referred to in the industry as a "flashlight test." This inspection determines if there is physical damage to the screen. An LED flashlight is pressed against the screen to shine light into the center and corners of the screen. Generally, a screen with a cracked or bleeding panel will "grab" the light, making a visible light trail along the crack. Screens that fail this flashlight inspection are not repairable and should be recycled. This procedure is a quick and effective first step in determining whether an LCD television or monitor may have reuse potential (Provision 2). However, it is not a sufficient method under the R2 Standard for testing "Key Functions."
Further testing and documentation is required to determine whether Key Functions of the device and/or components are working under Provision 6(c)2 of the R2 Standard. Each device must be powered on to perform the tests. For example, harvested LCD screens that are intended to be used as replacement screens or in new products should confirm that lighting, color and pixels are all functioning properly. Testing of LCD monitors or televisions that are destined for continued use as monitors and televisions would additionally include tests of the power, volume, input ports, and control buttons. All key functions of the device must be working to resell without restrictions as "R2/Ready for Resale."
Non-repairable LCD televisions and monitors must be managed as a Focus Material because they contain circuit boards. Some LCD televisions, monitors, and laptops (typically older models) may also contain fluorescent lamps (tubes) containing mercury, known as CCFLs. To properly manage LCD devices for recycling, you must distinguish between LCD-LEDs which do not contain mercury, and LCD-CCFLs which require the removal and proper management of the mercury lamps.