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Cake day: June 14th, 2023

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  • I was a poor college student and had access to engineering samples from a local manufacturer. Discarded parts gave me twin 15" LCDs for free in the mid 00’s. Also, to see if I could. It was a fun challenge. These are different revs of a controller that were outfitted in several slot machine prototypes. They gave me many years of service. I probably still have inkjet prints of the pinout and signal diagrams, somewhere.


  • I have rematched controllers to displays in the past. It’s neither simple nor easy. You’ll need to dig through spec sheets to ensure you’re sending the correct signals over the correct pinouts, at the correct frequencies and voltages. Be prepared to read some IO documentation for the sending and receiving chipsts, then verify pinouts with certainty. They are not always standard.

    Here are 2 identical LCDs, with 2 very similar, nearly identical looking controllers. Note that one needed to be re-wired. It is not fun butt-connecting 2 dozen 28ga wires.