
5.1.5 Touch Panel Problems (for FDS1904T/FDU2603WT only)
Problem
Possible cause and remedy
1. Touch operation is disabled.
•
Check that the monitor and PC are connected with a
USB or RS-232C cable.
•
Turn the monitor off and on.
•
Check that the power cord of the monitor and PC is
connected to a grounded main outlet. Failure to ground
the equipment may result in malfunction.
•
Perform touch panel sensitivity adjustment using
TPOffset.
2. Cursor position is not correct. / Cursor jumps.
•
Connect the monitor to the PC with the cable indicated
in the Setup Manual. The touch panel may not work
correctly if a conversion adapter is used.
•
Turn the monitor off and on.
•
Calibrate the screen again.
•
Check that the power cord of the monitor and PC is
connected to a grounded main outlet. Failure to ground
the equipment may result in malfunction.
•
Perform touch panel sensitivity adjustment using
TPOffset.
•
Changing the position or angle of the monitor may
cause the cursor to jump.
•
Keep metals away from the panel surface.
•
If the touch panel is dirty, the touch panel may not
operate properly. See Cleaning on page 4 ) to clean
the touch panel.
•
The spray for preventing static electricity may
influences the sensitivity of the touch panel.
•
Do not touch the touch panel for 5 seconds after the
PC starts up, after turning on the monitor, or after
connecting the cable. Touching the touch panel too
soon may cause incorrect cursor positioning or disable
touch operation. If this occurs, either leave the touch
panel untouched for approximately 2 minutes or turn
the monitor off and on again. If the problem persists,
calibrate the screen again.
3. The cursor does not appear at the touched position
and instead is displayed at a point-symmetric position
with respect to the center of the screen.
•
Calibrate the screen again.
4. Cursor is jittery. / Drawing lines are not straight and
smooth.
•
Check that the power cord of the monitor and PC is
connected to a grounded main outlet. Failure to ground
the equipment may result in malfunction.
•
Perform touch panel sensitivity adjustment using
TPOffset.
•
The influence of metal may cause jittery cursor.
•
When multiple monitors are placed close to each other,
leave space between monitors.
52 | Maintenance