HITACHI 42PD7500
Manual de Usuario

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.

Point to check � Check the way the power cable is connected. � Press the power switch.

See page 19 20

� The message �No Sync. Signal� or �Power Save� is displayed. � No picture with the power indicating lamp lights in orange.

! No Sync. Signal

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. � Check the connection status.

15

� The message �Check Antenna� is displayed.
! Check Anntena

13 14

� The message �Invalid Scan Freq.� is displayed.

! Invalid Scan Freq.

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.

15 60 61 62

� The power indicating lamp is normally lit but no picture.

� Check the contrast and brightness settings (adjust them for higher contrast and brightness). � Check the way the signal cable is connected.

15 46 48

� 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.

� Adjust the dot clock frequency and phase. (Adjust the dot clock frequency first, the dot clock phase next.) (RGB input)

42 57

� Adjust the dot clock phase for the clearest viewing. (RGB input)

42 57

� The remote control does not work.

� 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.
AAAAA

10 15 44 60 61 62

� The display image does not appear in the normal position.

� Check to see if the displayed input signal match the monitor specification by pressing button. � Turn off the screen saver.

� The display has lack of picture around the screen. (PC input mode only) � The temperature of the display panel surface is high.

AAAAA

� Turn off the screen saver. 44 � The plasma display panel is lighting the phosphors by the discharge of internal radiation. In some cases, this may cause the temperature of the panel surface to increase. Please note that this is not a malfunction.

�

55