Hi I have try to hook a LCD 4*20 on my azteeg x3 board it is a C2004A
d16 on RS
d17 on E
d23 on d4
d25 on d5
d27 on d6
d29 on d7
i put a pot on pin 3 center tap , gnd and vcc on other
it is turning on when i play with the pot i see 2 white line if turn furter 4 turn white
i change the settting in the marlin config to activated the lcd,
but notthing , no text just white line what am i missing?
