Vector 4 - Page 144

VECTOR 4
TECHNICAL INFORMATION
11. Focus is incorrect when the pixels are not clear or sharp. Evaluate each
pixel before turning the POT (VR101).
12, Shadows in corne ast when the deflection
yoke is not firmly positioned next to the bell of the tube (electron beam
is not properly deflected).
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a. Locate the clamp serew on the neck of the CRT. (See Exhibit
1-2).
b. Loosen the clamp screw and position the deflection yoke next to the
bell .of the tube until the entire raster appears.
c. Tighten the clamp screw.
The Raster is twisted when the deflection yoke is loose and/or twisted. This
problem can be corrected by loosening the clamp secrew and turning the yoke
until the raster is centered.
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09-01-82
7200-0001
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2-7