3M™MicroTouch™ System DST2270DX Integration Guide
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3M Touch Systems, Inc. Proprietary Information – TSD-25739
6.
Install the replacement screws as follows:
a.
Thread the screws into the holes that connect the display to the bezel.
b.
Work diagonally from one corner to the opposite corner.
c.
Do not over-tighten any one side or corner. Pressure should be evenly distributed
across the sensor. Follow the display manufacturer’s specifications for maximum
torque.
d.
You must be able to complete at least three full turns of the screw into the
original threads.
e.
If you install the screws correctly, the screws should be seated properly and be a
little tighter than finger tight. A close fit will prevent liquids and/or particles from
damaging the internal electronics, however, the screws should not be so tight that
they add stress to the display or the sensor. If the bezel starts to warp when you
tighten the screws, stop and loosen the screws.
Inspect the Attached Display and Bezel
Once you attach the display and the bezel, inspect your results as follows:
•
Check the front of the assembly for proper alignment and adjust if necessary.
•
Check that each bezel screw is seated properly and a little tighter than finger tight.
The screws should not be so tight that they add stress to the display. If the bezel is
warped, loosen the screws.
Note:
If the screws are too tight, you may damage the sensor, damage the display,
or bore right through the bezel.
•
Adjust the spacers or screws to get a secure attachment to the bezel without
squeezing too tightly. Make sure the bezel ribs and fins do not contact the sensor at
any point. If necessary, remove the bezel and trim the ribs and fins. For more
information, refer to Fitting the Sensor earlier in this chapter.
Reconnecting the Bezel and Chassis
1.
Reconnect all wires, cables, and switches.
2.
Lay the sensor flex tail along the outside area of the chassis.
a.
Avoid contact with internal electronics that can affect the sensor performance.
Do not route the sensor flex tail near the backlight inverter or power supply of the
LCD.
