Hi everyone.
I recently acquired a Marconi 2030 signal generator. It came with a defective LCD screen that does not impair usage, but is annoying.
However, I don`t think the LCD screen itself is at fault, because the LCD self test flips the pixels. I think it`s some logic chip`s problem.
If someone could take a look at the schematics and come up with some idea, that would be appreciated.