Zeiss humphrey HFA II-i series, Field Service Manual

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Page 2 FA2i-041
f) The on-screen dialogue indicates, “Press rectangle in Top Left corner” (Figure 2).
g)
Ignore this dialogue .
h) Note the rectangle in the lower right corner (see arrow in Figure 2).
i) Press the pointing device against the center of the white rectangle in the
lower right corner of
the display until you hear a beep.
j) The touch screen calibration is complete.
Figure 1. To Calibrate Touch Screen: Release Patient Switch Now