Elo TouchSystems AccuTouch 821615-000, Руководство по эксплуатации продукта

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After disconnecting any necessary cables, remove the screws that attach the
electronics chassis to the bezel. Note the bezel is essentially where all parts of
the mechanical assembly are attached, unless you have a rare unit that has an
internal frame. As you pull the chassis away from the bezel, make sure that
cables and circuit boards do not hit the neck of the CRT and that nothing
becomes caught on the adjustment rings or other components on the neck of the
CRT. Also watch for other cables that need to be disconnected. After removal,
set the electronics chassis aside.
Removing the CRT
Removal of the CRT is next. Prepare a soft surface to set the CRT on. Remove
the screws attaching the CRT to the bezel, and then remove the CRT. Do not lift
or carry the CRT by the neck or yoke assembly. Avoid contact with the anode
button, which may still have some residual charge on it, (you may wish to
discharge it again at this point). Set the CRT on the prepared surface.
Several other preliminary compatibility requirements should now be assessed:
• Position the CRT so the face is accessible, providing a soft cushion for the
neck and the yoke if they must rest on the work surface. Alternatively, set the
CRT face-up in an office-type plastic waste basket, making sure that the tube
is not resting on the neck (The small part of the CRT is the neck). Place the
touchscreen on the face of the tube, and check to see that the face of the CRT
and touchscreen are about the same size, and that the radius of curvature
(ROC) of each surface matches well. If both of these conditions are not met,
you may not have the proper touchscreen for the monitor. Most color
monitors have standard size CRT's with standard ROC's, and Elo has
touchscreens for most of them.
• N ext, determine if the touchscreen will fit in the bezel without modifications
to the bezel. Modifications, if necessary, should be done without
compromising the mechanical integrity of the monitor.
•
Lay the touchscreen face-down in the bezel. Leave the degaussing coil in
place, if present. The degaussing coil is a hoop, often located between the
CRT and bezel, approximately 1/4-inch (6 mm) thick, with a two-wire
cable and connector. The coil was probably unplugged from the power
supply earlier.
•
If the touchscreen will not fit flush against the lip of the bezel, do not force
it. An interference fit between the edge of an AccuTouch touchscreen and
some of the plastic ribs found in monitor bezels could result in fracture of
the glass after reassembly.