Lenovo Li2341t Wide Flat Panel Monitor User Guide - Lenovo Li2341t Wide Flat P - Page 24

Table 3-2. Troubleshooting Problem Possible cause Suggested action Reference The power indicator is amber, 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 1-4 The monitor brightness and contrast are at the lowest setting. Adjust the brightness and contrast setting on the OSD menu. "Adjusting your monitor image"on 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 in text or a blurry image. ••Horizontal or vertical lines through the image. ••Image setup has not been optimized. ••Your system Display Properties setting have not been optimized. Adjust the resolution settings on your system to match the native resolution for this monitor: 1920 x 1080 at 60 Hz. "Adjusting your monitor image"on page 2-3 Perform automatic image setup. If automatic image setup does not help, perform manual image setup. "Selecting a supported display mode"on page 2-7 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. 111 Press at the bottom of the monitor to open the OSD menu. 222 Use or to select and press to access. 333 Use or to select manual and press to access. 444 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. 555 When the image no longer looks distorted, save the Clock and Phase adjustments. 666 Press to leave the OSD menu. Chapter 3. 3-4