Tektronix 222 Operator's Manual page 74

222 DSO Operators-How It Works
Press X
Y ~
to display a test pattern that is useful in making crt
adjustments (see Figure
4-1).
Adjust the HORlZ ALIGN and VERT ALIGN controls (screwdriver ad-
justment located on the rear panel) to align the lines of the test pattern
with the horizontal and vertical graticule lines.
REV JUN 1989