Checking Straightness, Pincushioning - Wyse WY-60 Maintenance Manual

Checking Height
To check the display height, follow these steps:
1.
Rest the reticle on the left vertical edge of the bezel.
2. Move the reticle up and down along the edge. Check the top
edge, then the bottom edge, of the alignment pattern. Both
edges should fall between the minimum and maximum display
height bands on the reticle (see Figure D-2).
3.
If one or the other edge falls outside the bands, adjust the
display (see the alignment instructions in Chapter 4).
Checking Straightness and Pincushioning
To check straightness and pincushioning, follow these steps:
1.
Move the reticle along a horizont3.1 edge of the bezel.
Check the right vertical edge, then the left vertical edge,
against the straightness lines etched on the perimeter of
the reticle (see Figure D-3).
Figure D-3 Checking Straightness, Pincushioning, Centering, and
Vertical Linearity
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