Sharp LL-P202V (serv.man2) Service Manual ▷ View online
LL-P202V/S242A IMPORTANT INFORMATION FOR SERVICING THE DISPLAY AND SOFTWARE 3 - 40
4) Click the “Yes” button if passing Drawing Check.
5) Click the “OK” button to finish.
6) Click the “No” button if failing Drawing Check.
The following message box is appeared. In this case, the touch panel is out of order. And it is needed to replace it by new one. Click the
“OK” button to finish.
LL-P202V/S242A IMPORTANT INFORMATION FOR SERVICING THE DISPLAY AND SOFTWARE 3 - 41
3-15.
Digitizer pen inspection
■OUTLINE
This model is compatible with the digitizer pen. Therefore, need to run inspection of the digitizer pen when replacing the touch panel, main
board or the digitizer pen.
■Setting-Limitation
Setting:
Before starting the digitizer pen test.
-
Connect PC and Touch monitor with USB and HDMI cable(or DP cable),
-
Set Touch monitor to primary display or set multi display mode to duplicate or external only, if Touch monitor is connected as an
external display.
- Connect the digitizer pen to Touch monitor.
- In order to run the digitizer pen testing tool, you need to advance it should be installed ". NET Framework 4" over for inspection
PC.
Limitation:
-
Run the drawing inspection while applying the writing pressure. There cannot be drawing pen pressure is too light, or that the line
is interrupted.
LL-P202V/S242A IMPORTANT INFORMATION FOR SERVICING THE DISPLAY AND SOFTWARE 3 - 42
■Inspection procedure
1) Click the "DigiPen Check" button, and then start the check tool.
The screen similar to the following appears when tool is started.
LL-P202V/S242A IMPORTANT INFORMATION FOR SERVICING THE DISPLAY AND SOFTWARE 3 - 43
2) Connection with the touch controller by pressing the "TPC Connect" button. If the connection is successful, the color of the square mark
to the right of the button changes to green from red, test screen appears. If the display does not change, review the cable connection
between the monitor and PC.
3) It will conduct the inspection of the following four.
1) Hover
test
2) Pressure
test
3) Side button test
4) Drawing
test
4) Hover test
In this test, hover operation you float a digitizer pen from the touch panel surface, make sure that is whether there is an abnormality in the
pen pressure value is detected when it is not in contact with the touch surface.
It is still about two seconds in the state in which floated about 1cm to the touch panel surface the tip of a pen digitizer by the broken line
area of the "HOVER" inspection of the on-screen, and checking the display of "OK"
If it appears to be "NG" with the pen tip and impinges on the touch surface by mistake pen pressure checking for about 2 seconds, and
then re-examined placed in the area again to move the cursor to the broken line area outside once.
5) Pressure test
Make sure in a simple way that can be controlled smoothly as the pen pressure was intended and that can be detected by the touch
controller maximum pen pressure value is output in this test.
Touch a small force in the broken line area of the screen near the center and strengthen the force slowly at the same position.
How to redo the test can be done by releasing the digitizer pen from the touch panel, and touching the broken line area again.
It is still about two seconds in a state of floating 1cm.
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