Although it is a new, unused item, there may be scratches, stains, and damage due to long-term storage. In LCD TVs, there are many cases where the screen turns completely black and does not display. Replacing this board may repair the malfunction. (Malfunction Symptoms) Sound can be heard normally. Channel operation works normally. Backlight is on. Screen display is completely black or distorted. (If the image is faintly visible, it is a backlight failure, so this board replacement will not fix it.) (Repair Method) (There are high-voltage parts and components such as capacitors that store electricity inside the TV, so please do not touch any parts other than this board.) 1. Unplug the TV's power cord (it's better to wait a while to discharge it). 2. Place a towel or similar on a hard table to protect the TV's LCD screen from pressure or scratches. 3. Lay the TV down with the LCD screen facing down. 4. Remove the screws on the back (there are many). 5. Remove the stand. 6. Remove the silver metal cover located around the center bottom (slightly above the stand). 7. Disconnect the board connectors (silver connectors, white connectors can be removed by prying with a small flathead screwdriver). 8. Disconnect the board connectors (the black connectors have a door-like black part that opens). 9. Remove the board screws and replace the board. 10. Reconnect the connectors (making sure not to forget any wiring). 11. Replace the silver cover, stand, and back panel. This board is not sold by Toshiba. If you request repair from Toshiba, the entire LCD panel will be replaced, and you will be charged a very high repair fee. Please perform the repair at your own discretion. We are not responsible for any failures, damage, or injuries. We cannot guarantee any problems during or after the replacement, so please understand.