Monitor repair is often cost-effective for high-end displays. "No signal" usually means a cable or input issue—try another cable and port. Flickering can be from a bad cable, backlight, or power board. Dead pixels are rarely fixable. Backlight replacement can restore a dim display. Our guides cover Dell, ASUS, LG, BenQ, and Acer. Disconnect power and wait before opening. The power board and main board are common failure points. Stand replacement is straightforward. Match the replacement panel to your model exactly.