Hitachi CMP4212U Owners Guide - Page 27
Symptoms That Seemingly Appear to be Failures, TROUBLESHOOTING
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ENGLISH TROUBLESHOOTING Symptoms That Seemingly Appear to be Failures Make the checks suggested below depending on the symptoms observed. If the symptoms remain uncorrected, contact your dealer. WARNING Customer servicing can be hazardous. Symptom • No picture with the power-indicating lamp off. • The message "No Sync. Signal" or "Power Save" is displayed. • No picture with the power indicating lamp lights in orange. ! No Sync. Signal • The message "Invalid Scan Freq." is displayed. ! Invalid Scan Freq. Point to check • Check the way the power cable is connected. • Press the power switch. No sync signal is detected. • Check the way the signal cable is connected. • Make sure that the switch of the computer, imaging equipment , etc., is turned on. • Make sure the computer is not in the power-save mode. • Check to see if the input selection matches the connection terminal. An input signal is not received normally. • Check to see if the input signal matches the monitor specifications. • Check the way the signal cable is connected. See page • The power indicating lamp is normally lit but no picture . • The display image appears flowing slantwise. • Text displayed across the screen appears vertically streaked, with the characters in vertical columns blurred. • Text displayed across the screen appears blurred. • A fine pattern flickers when displayed on the screen. • The remote control does not work. • Check the contrast and brightness settings (adjust them for higher contrast and brightness). • Check the way the signal cable is connected. • Adjust the dot clock frequency and phase. (Adjust the dot clock frequency first, the dot clock phase next.) (RGB input) • Adjust the dot clock phase for the clearest viewing. (RGB input) • Check to see if the batteries are loaded in the remote control in opposite direction. • Check to see if the batteries in the remote control are OK.