Texas Instruments TI-83 Plus Graphing Calculator WORKS small screen blotch shown

Texas Instruments TI-83 Plus Graphing Calculator Works! screen blotch as shown.

Texas Instruments TI-83 Plus Graphing Calculator w/ Cover Working *READ Please*

Texas Instruments TI-83 Plus Graphing Calculator Black w/ Cover UNTESTED

Texas Instruments TI-83 Plus Graphing Calculator Tested

Texas Instruments TI-83 Graphing Calculator TESTED WORKING with Cover

Texas Instruments TI-83 Plus Graphing Calculator Math + Case Cover TESTED WORKS

2 (Two)Texas Instruments TI-83 Plus| Graphing Calculator w/ Cover |PARTS/REPAIR*