Lenovo LS1922 Wide 18.5 inch LCD Monitor Lenovo LS1922 18.5-inch Wide LCD Moni - Page 20

Table 3-2. Troubleshooting Problem Possible cause Suggested action Reference The power indicator is green, but there is no image The video signal cable is loose or disconnected from the system or monitor Be sure the video cable is connected with the system properly "Connecting and turning on your monitor" on page 1-3 The monitor brightness and contrast are at the lowest setting Adjust the brightness and "Adjusting your contrast setting on the monitor image" on OSD menu page 2-3 One or more of the pixels appear discolored This is a characteristic of the LCD technology and is not an LCD defect If there are more than five pixels missing, contact the Support Center Appendix A, "Service and Support," on page A-1 • Fuzzy lines • Image setup has Adjust the resolution "Adjusting your in text or a not been settings on your system monitor image" on blurry optimized to match the native page 2-3 image • Horizontal or vertical • Your system Display Properties setting resolution for this monitor: 1366 x 768 at 60 Hz "Manual image setup" lines have not been Perform automatic image "Selecting a through the optimized setup. If automatic image supported display image setup does not help, mode" on page 2-6 perform manual image setup When working in the native resolution, you may find additional improvements by adjusting the Dots Per Inch (DPI) setting on your system See the Advanced section of your system's display properties Manual image setup If automatic image setup does not establish the image that you prefer, perform manual image setup. Note: Have your monitor powered on for about 15 minutes, until the monitor warms up. 1. Press at the bottom of the monitor to open the OSD menu. 2. Use or to select and press to access. 3. Use or to select Clock and Phase adjustment. • Clock (pixel frequency) adjusts the number of pixels scanned by one horizontal sweep. If the frequency is not correct, the screen shows vertical stripes and the picture does not have the correct width. • Phase adjusts the phase of the pixel clock signal. With a wrong phase adjustment, the picture has horizontal disturbances in light picture. 4. When the image no longer looks distorted, save the Clock and Phase adjustments. 5. Press to leave the OSD menu. 3-4 LS1922 Wide Flat Panel Monitor User's Guide