Very weird LCD problem...

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Joined: 24/12/2017
Location: Australia
Posts: 1598
Posted: 01:05am 19 Apr 2024      

Maybe you have a crook connector for the LCD? Can you plug a header into it and buzz out the connections?

Sometimes a DMM is not the best thing to "buzz" out a circuit - something like a real buzzer or a battery/LED/resistor in series may be better. Something that draws a bit of current.