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Symptom Probable cause and corrective action Page
Power is suddenly turned on or off. The power-on/off timer is activated. Deactivate the timer. 29
The picture becomes blurred.
• For RGB input, adjust “DOT CLOCK” and “CLOCK PHASE” on the
main menu.
• If the connection cable used for RGB terminal is long, set “SYNC
TERM.” to “LOW.”
21
•
29
Color is abnormally bright or dark.
• Adjust the picture quality on “PICTURE SETTING” of the main
menu.
• If “TEMP. OVER” is displayed, follow the procedure described on
page 40.
21
•
40
Color is poor or unstable. Select the correct color system. 25
The picture is cut or shifted toward
one side.
• Input signals (scanning frequency, etc.) are not appropriate.
• Adjust the size and position properly.
12
•
21
Menu does not appear or disappears
quickly.
When “INPUT B” of “INPUT CONFIGURATION” is set to
“COMPONENT” with a personal computer connected to the
RGB/COMPO. terminal, the menu operation is not available. Select
another input to operate the menu.
23
Some items are not shown on the
menu.
Items not available for the current input signal are not displayed.
Change the input or signal format. Some items are displayed only
when the corresponding optional input card is inserted.
—
“PLEASE ENTER PASS ID” appears
when trying to turn on the monitor.
The Security Lock is activated. Enter the password to turn on the
monitor, and then deactivate the Security Lock.
27, 32
Buttons on the main unit do not work. The Control Lock is activated. Deactivate it. 29
The following are not malfunctions:
Pixel defects
LCDs use collections of fine points (“pixels”) to display images. While there is no problem with more than 99.99% of these
pixels, please understand that a very small number of pixels may not light, or may light all the time.
The following cases are only problems if an abnormality occurs on pictures or sounds as well:
• A slight electric shock occurs when you touch the monitor.
• The top and/or rear panel of the monitor becomes hot.
• The monitor emits a cracking sound.
• The monitor emits a strange sound.
06-42_GM-H40L2A-f.indd 3906-42_GM-H40L2A-f.indd 39 06.4.24 5:21:19 PM06.4.24 5:21:19 PM