PM4 Troubleshooting

Fluttering Lines on Screen


The monitor screen flutters with horizontal lines going across it. While the LCD is “fluttering,” other symptoms may be observed such as incorrect stroke output values, erratic strokes/minute display, inability to connect to PC or Mac or code 50 error. The video below illustrates a fluttering LCD.

Fluttering Screen Example (no audio)

0:10 Seconds


Replace the monitor.