I have two different LCD2004's and the pin-out is backwards on the two Displays.
I proved the key was reversed by Plugging my original ribbon Cable with the key as shown In the Photo Below.
Note Red Strip wire on right. Key on bottom
I made the cables for the top Display to work. As the Key is on the bottom By rotating the Connector 180 before crimping to the cable.
The Bottom Display has the key On the Top as seen in the Image above.
Now after all the work I went thru, discovered the Black plastic could be removed and pushed back on rotated 180 and work with the original cables.
Ps I have Hictop's 3DP11 & 3DP12
Searched the Web and found this
[
www.geeetech.com]
Edited 10 time(s). Last edit at 04/01/2020 08:47PM by Roberts_Clif.
Computer Programmer / Electronics Technician