Part Type T-Con Board LCD Controller Control Board CTRL Board Timing Control Part Number 6871L-2089B (2089B) can be found on stamp MFR Part Number 1 LG 6871L-2089B Board Number(s) 6870C-0337A Known Models DYNEX DX-55L150A11 INSIGNIA NS-55L780A12 SANYO DP55441 P55441-01 VIZIO E550VA VIZIO E551VA Panel Sticker Number LC550WUD-SCA1 Panel Manufacturer LG