Hey folks - I'm working on an M100 and having some challenges with the LCD. Here are the symptoms:
* No image at all on the LCD * Contrast dial does nothing * Beep test passes (boot > enter > beep > enter produces an audible tone), so it seems the system itself is working * The LCD works fine in a different M100 * VDD is reading +5v, and VEE is reading -5V * Checked the data pins on the LCD with my scope; they all look fine - looks like both data and addresses are making it to the LCD connector At this point, I'm baffled. Can anyone offer up some advice on what else to check? Thanks! //Ken S.
