The supplied large header has 20 pins. Cut off two to make 18. Initially thought I must have the monochrome since header was two pins larger.
Step three would be better to tack solder end pins to hold in place. Then assemble the spacers and other board per step 4 to keep all the pins aligned while soldering step 3. Separate, inspect, then do step 4.
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Screws don't fit through RGB board. Had to drill slightly larger.
The supplied large header has 20 pins. Cut off two to make 18. Initially thought I must have the monochrome since header was two pins larger.
Step three would be better to tack solder end pins to hold in place. Then assemble the spacers and other board per step 4 to keep all the pins aligned while soldering step 3. Separate, inspect, then do step 4.