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DIDS-402-2AMI3
e.
In
the center of the screen on the fifth line, type in the following
characters:
f.
.&.
h.
i.
k.
1.
m.
fkhfdb
If the scan line s a.re not O. 13 inch high, adjust diddle amplitude control
R43.
For this and all following adjustments, refer to figure 2 -4.
If characters Hand 0 are not 70 percent of frame height and the
lower case characters on the third line are not 50 percent of frame
height, adjust diddle gain control R-29.
Observe characters Hand 0 in the first line.
If these characters
are not centered horizontally, alternately adjust the Y -gain (R-52)
and Y -position (R- 27) controls.
Observe characters t and
$
in the second line.
If
these characters
are not centered vertically, alternately adjust the X-gain (R-58)
and X-position (R-7) controls.
Repeat steps hand i until all four characters are centered both
horizontally and vertically within their frames.
Observe the characters on the fourth line of the screen.
The lower
extremity of the characters should be just touching the bottom of
their frames.
Observe the characters on the fifth line of the screen.
The upper
extremity of the characters should be just touching the top of their
frames.
If the displayed characters are uneven (either vertically or horizon-
tally) perform the following steps:
(1)
Observe characters t and
$
and adjust Y-skew control R-16
until the characters line up vertically.
(2)
Observe characters Hand 0 and adjust X-skew control R-21
until the characters line up horizontally.
n.
If the displayed characters are blurred, advance the cursor to the
center of the screen on the sixth line and type in characters B, 8,
>!'
and t.
Alternately adjust diddle coil phase control R-36, the MONO
FOCUS, and the CRT FOCUS until the upper and lower portions of
Band 8 are of equal size and ,:e and t are not blurred.
o.
Observe the entire screen presentation.
If any previous adjustments
have been affected, repeat the necessary procedures until a suitable
compromise is obtained.
Because many of the previous adjustments interact, it may be necessary to
pe rform two complete alignments before realizing a satisfactory screen
pre sentation.
2-9
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