How to indentify pinouts?

[devileyebrows42]

I always see threads giving pinouts for various screens. Im curious, but how do people identify these pinouts? Im going to be using different casio screens and it would be helpful to know how to identify the proper pinouts to wire. Thanks

[gannon]

I use a multimeter / continuity tester and my eyes to trace the lines usually. Sometimes you actually have to look at the voltage on the lines to see what type of data it might be though. I remember trying to figure out the p/s, clock, and data lines on some NOAC units, only giveaway was their voltage difference (unless I used a oscilloscope )

[tom61]

Most pinouts listed here are from the manufacturers themselves. There's usually part numbers listed on the board, googling that number plus "datasheet" will sometimes give you results. Most of the remaining are just tracing back signals from known connector types (like the PSOne's mutli-A/V connector) using a multimeter. Very few of the monitor pinouts on here are teased out the way gannon suggests, and then it's usually from a known chip that we have a datasheet for.