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Final Graticule
Adjustments
X and Y Expand
Adjustments
41. Adjust A3A3R5 Y GAIN to align the top graticule line with the
fast sweep signal trace.
42. Press
TRACE A @iZQ.
],
PRESET
43. Set A3A2R12 LL THRESH fully clockwise.
44. Adjust A3A3R6 XLL and A3A3R9 YLL to align horizontal and
vertical lines so that each line meets the edge line (right, left, top,
or bottom) but does not overshoot.
45. Adjust A3A2R12 LL THRESH fully counterclockwise.
46. Adjust A3A3R7 XSL and A3A348 YSL to align horizontal and
vertical graticule lines so that each line meets the edge line (right,
left, top, or bottom) but does not overshoot.
47. Adjust A3A2R12 LL THRESH clockwise until all graticule lines
switch over to long lines. This is indicated by a noticeable
increase in graticule line intensity. (All graticule lines should
increase in intensity.)
48. Press
).
PRESET
49. Key in MARKER [NORMAL).
50. Adjust A3A3Rl X EXP to center the letter "F" in "REF" (CRT
annotation in upper left corner of display) over
graticule line.
51. Adjust A3A3R2 Y EXP to align the remainder of
annotation so that the upper annotation (MARKER data) is above
top graticule line and the lower annotation (START and STOP
the
data) is below the bottom graticule line. Adjust for equal spacing
above and below the graticule pattern.
25. Digital Storage Display Adjustments
left edge
the
CRT
the
Adjustments 3-149
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