Touch Screen - Bayer HealthCare RapidPoint 400 Series Service Manual

Touch Screen

Problem
The screen is blank.
The touch screen responds
inconsistently to touches. For
example, you must touch to the right
or the left of an item to select it.
The touch screen does not respond
to touches, or it responds erratically
after calibrating the screen.
174
Probable Cause and Corrective Action
1. Ensure that the screen is adjusted to the
correct viewing angle and brightness.
Grasp and squeeze the latch on top of the
screen and tilt the screen to the correct
viewing angle.
2. Ensure that the power switch is on.
3. Ensure that the power cord is connected to
the system and to the electrical outlet.
4. Ensure that the fuses are not blown.
If necessary, replace the fuses as described
in Replacing the Fuses in Replacing
Components.
The touch screen requires calibration. Refer
to Calibrating the Touch Screen in
Calibrations.
When relocating the system, a change in
ambient temperature of greater than 5°C may
cause the screen to become out of calibration.
Calibrate the screen if required.
The touch screen was incorrectly calibrated.
Call for technical assistance.
Service Solutions
Perform service solutions only after all other
corrective actions have been completed.
1. Perform Emergency Calibration of the
Touch Screen in Calibrations.
2. Replace the Display/Printer assembly.
3. Replace the UIP board.
4. Replace the Main board.
Rev. C