I own 2 Sam's er650 cash register, one of them the display shows backlight but no images nor letters. It was working before. What could be wrong??
The other one shows only backlight with black dots. It won't respond. I tried to clear ram but it doesn't do anything. What could be wrong??
The other one shows only backlight with black dots. It won't respond. I tried to clear ram but it doesn't do anything. What could be wrong??
