HP P1230 CRT Monitor p1230 - User's Guide - Enhanced for Accessibility - Page 20

A Troubleshooting Solving Common Problems The following table lists possible problems, the possible cause of each problem, and the recommended solutions. Problem Possible Cause Solution No picture. Image is scrolling or unstable. Power switch is turned off. Turn on the power. Video cable is improperly Connect the video cable connected. properly. Refer to Chapter 3, Setting Up the Monitor, for more information. Bent pins on the signal connector. Check connector for bent or pushed-in pins. Display card is loose in slot. Re-seat the display card. Signal cable is loose. Reconnect the signal cable. LED on monitor is not Power switch is turned off. Turn on the power. lit. Picture is fuzzy or color Moire Canceler, Access the All Reset (Factory looks blotchy. Brightness, Contrast, Preset) through OSD controls Degauss, or Corner Purity and activate it to restore factory controls are set incorrectly. presets.