Troubleshooting; Symptoms That Seemingly Appear To Be Failures - Hitachi CMP4121HDU User Manual

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.
• The message "OUT OF FREQUENCY" is
displayed.
• 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 controller does not work.
• The screen becomes dark and the images
cannot be seen during VTR special
playback (fast forward, rewind).
• The display image does not come out by the SCART signal.
• 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.
POWER SAVE • 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.
OUT OF FRQUENCY
• 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 controller in
opposite direction.
• Check to see if the batteries in the remote controller are OK.
• 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.
• Check the way the signal cable is connected.
• Check the setup.
Point to check See page
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