Why is the cursor difficult to press left and down?Thank you for your time, I bought an un used ti-92 plus. The cursor pad requires significant force for down and left, but...
"Why is the cursor difficult to press left and down?"에 답변The conductive "paws" on the silicone button membrane where not landing flat onto the logic "prints" on the circuitboard. This is do the design of the D-pad button. It pivots about the origin, therefore "tilting" the "rubber button/paw", which causes the "paw" to not land flat. Landing flat is important to cause continuity across the "print". Thus, By modifying the D-pad, one can cause the "paw" to land flat. The idea is to "pitch" the buttons interaction with the D-pad, so that, by the time the "paw" rotates down, it lands flat on the "print". (1) Last note: Applying small amounts of silicone grease (Plumbing Section), allows the rubber "paw/buttons" to slip in the interaction against the epoxy and slop into its natural flat position. Silicone grease will not eat the plastic like normal grease would.