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

 

 

 

 

 

 

 

 

Point to check

See page

• No picture with the power-indicating lamp off.

 

 

 

 

 

 

 

Check the way the power cable is connected.

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Press the power switch.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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• The message “No Sync. Signal” or “Power

 

 

 

 

 

 

 

No sync signal is detected.

 

 

 

 

 

 

 

 

 

 

 

 

Save” is displayed.

 

! No Sync. Signal

 

Check the way the signal cable is connected.

 

 

 

 

 

 

 

 

 

 

 

• Make sure that the switch of the computer, imaging

 

• No picture with the power indicating lamp

 

 

 

 

 

 

 

 

equipment, etc., is turned on.

 

15

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Make sure the computer is not in the power-save mode.

 

 

lights in orange.

 

 

 

 

 

 

 

Check to see if the input selection matches the connection

 

 

 

 

 

 

 

 

 

 

 

 

terminal.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

• The message “Invalid Scan Freq.” is

 

 

 

 

 

 

 

An input signal is not received normally.

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displayed.

 

 

 

 

 

 

 

Check to see if the input signal matches the monitor

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

specifications.

 

50

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

! Invalid Scan Freq.

 

• Check the way the signal cable is connected.

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52

 

 

 

 

 

 

 

 

 

 

 

 

 

• The power indicating lamp is normally lit but

 

 

 

 

 

 

 

Check the contrast and brightness settings (adjust them for

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no picture.

 

 

 

 

 

 

 

 

higher contrast and brightness).

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Check the way the signal cable is connected.

36

 

 

 

 

 

 

 

 

 

 

 

 

 

38

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

• The display image appears flowing slantwise.

 

 

 

 

 

 

 

Adjust the dot clock frequency and phase. (Adjust the dot

 

 

 

 

 

 

 

 

 

• Text displayed across the screen appears

 

 

 

 

 

 

 

 

clock frequency first, the dot clock phase next.)

 

 

vertically streaked, with the characters in

 

 

 

 

 

 

 

 

(RGB input)

 

32

 

vertical columns blurred.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

47

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

• Text displayed across the screen appears

 

 

 

 

 

 

 

Adjust the dot clock phase for the clearest viewing.

 

 

blurred.

 

 

 

 

 

 

 

 

(RGB input)

 

 

• A fine pattern flickers when displayed on the

 

 

 

 

 

 

 

 

 

 

32

 

screen.

 

 

 

 

 

 

 

 

 

 

47

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

• The remote control does not work.

 

 

 

 

 

 

 

Check to see if the batteries are loaded in the remote control

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in opposite direction.

 

 

 

 

 

 

 

 

 

 

 

• Check to see if the batteries in the remote control are OK.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

• The display image does not appear in the

 

 

 

 

 

 

 

Check to see if the displayed input signal match the monitor

15

 

normal position.

 

 

 

 

 

 

 

 

specification by pressing

button.

 

 

 

 

 

 

 

 

 

34

 

 

 

 

 

 

 

 

 

 

Turn off the screen saver.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

50

 

 

 

 

 

 

 

 

 

 

 

 

 

51

 

 

 

 

 

 

 

 

 

 

 

 

 

52

 

 

 

 

 

 

 

 

 

 

 

 

 

 

• The display has lack of picture around the

 

 

 

 

 

 

 

Turn off the screen saver.

 

 

 

screen.

 

 

 

 

 

 

 

 

 

 

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(PC input mode only)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

• The temperature of the display panel surface is high.

The LCD monitor is lighting the fluorescent lamps inside of

 

 

 

 

 

 

 

 

 

 

 

 

the panel.

 

 

 

 

 

 

 

 

 

 

 

 

In some cases, this may cause the temperature of the panel

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

surface to increase. Please note that this is not a malfunction.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ENGLISH

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Hitachi hitachi lcd monitor Troubleshooting, Symptoms That Seemingly Appear to be Failures, Symptom Point to check See