Computer Monitor User Manual

20
Troubleshooting (cont.)
Problems Points to be checked Measures (Remedy)
Reference
pages
Wrong picture
position, wrong
picture size
Has the picture position or size been
changed?
Adjust the picture size (H. SIZE/V. SIZE) or
position (H. POSI./V. POSI.) in “SIZE/POSI.
ADJ. (USER)” in the SET-UP MENU.
16
For some signals, the picture cannot be
displayed fully in the effective screen area.
There is no sure method to solve this
problem.
—
Is the input signal adapted to the monitor’s
specification?
Check if the input signal format is
acceptable to the monitor.
21
Has the SCAN SIZE button been pressed? When “100%” is selected, select “USER”
and adjust “SIZE/POSI. ADJ. (USER)” in
the SET-UP MENU. If this does not work,
select “OVER.”
8, 16
When “1:1” is selected, select “OVER.” 8
Has the ASPECT button been pressed? Press the ASPECT button to select “4:3.” 9
Some items do not
appear on the menu.
The items which are not available for the
current input or the current input signal do
not appear on the menu.
Change the input or the input signal.
—
The buttons on the
front panel do not
function.
Is “CONTROL LOCK” in the SET-UP
MENU set to “ON”?
Set it to “OFF.”
17
Has the monitor’s setting been changed
to enable control by the external control
connected to the REMOTE terminal?
Disable the external control.
18
The following are not malfunctions:
• When a still image is displayed for a long time, it may remains on the screen after the picture changes. This is
due to the characteristics of the LCD display and is not malfunction. The remaining picture will disappear after
a while.
• The red spots, blue spots and green spots on the panel surface are a normal characteristic of LCD displays,
and not a problem. The LCD display is built with very high precision technology, however, be aware that a few
pixels may be missing or constantly lit.
The following symptoms are problems only when pictures or sounds are not played back normally:
• 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 noise.
• The monitor emits a mechanical noise.
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