Texas Instruments TI-86 Graphing Calculator Tested Working Display Line Issue

Fully powers on and passes basic input checks, but screen has partial display issues—likely needs a new ribbon cable or internal cleaning. Perfect for repair techs, hobbyists, or collectors looking for a restoration project. Tested and powers on. Screen displays missing or distorted pixels, likely due to a worn ribbon cable. Sold AS-IS for parts or repair. No cover included. ✅ TI-86 Graphing Calculator – Powerful legacy model ✅ Powers on, buttons tested responsive ✅ Screen has missing pixels – sold as-is ✅ Needs ribbon cable or display fix ✅ No major cracks or housing damage ✅ All battery terminals clean and intact ✅ Battery cover included ✅ Serial number: 043305 ✅ Advanced graphing functions ✅ Original TI layout with F1–F5 keys ✅ Accepts 4 AAA + 1 CR1616/CR1620 backup battery ✅ Made in Taiwan ✅ Ideal for refurbishing or parting out ✅ Fast U.S. shipping ✅ Expert seller in calculators & electronics