dynabook dynaEdge DE200 Series, Maintenance Manual

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2 Troubleshooting Procedures
dynaEdge DE200 Series Maintenance Manual (960-947) [CONFIDENTIAL]
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2.9 Display (LCD, Touch panel) Troubleshooting: Not used
The display (LCD) and the touch panel are made by direct-bonding. Therefore, if either
function has trouble, both should be replaced together.
This section describes how to determine if the computer’s display or touch panel is
functioning properly.
To check the touch function, start with Procedure 1. To check the display function, start with
Procedure 2.
Procedure 1: Check on Windows OS
Procedure 2: Diagnostic Test Program Execution Check
Procedure 3: Connector Check and Replacement Check
2.9.1 Procedure 1 Check on Windows OS
This procedure checks if the touch screen is working properly by using the function of
Windows.
Check 1 Make sure the mouse cursor is following your finger when you move your finger
on the display. If it does not work properly, go to Procedure 2.
Check 2 Make sure the “click” function works properly when you tap the display with the
finger. If it does not work properly, go to Procedure 2.
2.9.2 Procedure 2 Diagnostic Test Program Execution Check
Execute the LCD panel test in the Diagnostic Program. Refer to Chapter 3, Tests and
Diagnostics , for more information on how to perform the test program.
If any error occurs during the test program, go to Procedure 3. If not, both the LCD and touch
panel should work properly.