Hitachi CMP4121HDU Owners Guide - Page 30
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. POWER SAVE • The message "OUT OF FREQUENCY" is displayed. OUT OF FRQUENCY • 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. Point to check See page • 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. • 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) • The remote controller does not work. • Check to see if the batteries are loaded in the remote controller in opposite direction. • Check to see if the batteries in the remote controller are OK. • The screen becomes dark and the images cannot be seen during VTR special playback (fast forward, rewind). • This sometimes occurs when a component output VTR such as the 480i is connected. This is not a malfunction; therefore, please take note that this may - occur. When it does occur, change to composite output, or S1 (or S2) output. • The display image does not come out by the SCART signal. • Check the way the signal cable is connected. • Check the setup.