Hitachi CMP4121HDU Manuel Du Propriétaire

ENGLISH

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.

TROUBLESHOOTING

Customer servicing can be hazardous.

WARNING

Symptom

Point to check

See page

• No picture with the power-indicating lamp

off.

• Check the way the power cable is connected.
• Press the power switch.

• The message “NO SYNC SIGNAL” or

“POWER SAVE” is displayed.

• No picture with the power indicating lamp

lights in orange.

POWER SAVE

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.

• The message “OUT OF FREQUENCY” is

displayed.

OUT OF FRQUENCY

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.

• 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.

• The display image appears flowing

slantwise.

• Text displayed across the screen appears

vertically streaked, with the characters in
vertical columns blurred.

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

frequency first, the dot clock phase next.)

(RGB input)

• Text displayed across the screen appears

blurred.

• A fine pattern flickers when displayed on the

screen.

• 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.