37Z3 42Z3 42Z2 6870C-0358A T-CON Board Main Board

This is a new, unused item, but due to long-term storage, there may be dirt and scuffs. Many LCD TVs suffer from screen display failures.

Condition with potential for repair (improvement not guaranteed):
Backlight is on, but the screen is basically black.
(When the screen does not display in a completely dark room, but only the backlight is on (faintly lit).
Audio: Audible Remote control: Operable

Toshiba does not offer board replacement for this issue when you request repairs.
The repair cost will be high due to the need to replace the entire LCD panel. Please research this online for more details.
Reference site: http://honey82chu.hatenablog.com/entry/2016/07/06/085344