TM 5-6675-17-14
(9) Match images.
NOTE
Flipping either ILLUMINATION SELECTOR switch up or down will illuminate
glass stage or table.
Images not in register will jump. FOOT SWITCH
will also turn off either stage or map illuminator when pedal is depres-
sed.
(a) Pick common feature on both maps and place it in center of field of
view of each viewing system (stage and table).
(b) Rotate IMAGE ROTATION dial to move images so lines, such as streets,
rivers, etc, are parallel.
Then be sure adjacent objects are also parallel.
X-AND Y-ADJUSTMENT SCREWS
CAUTION
To avoid damage to the map lens, do not overtighten or back adjustment
screws out of threads.
(c) Move map on table left, right, forward, or backward to roughly
aline image in X-Y direction.
Then turn X-and Y-adjustment screws for precise
alinement.
(10) Match scale of stage image and map.
(a) Pick feature near edge of field of view, and change zoom magnification
until both features are alined.
(b) When point near edge is chosen, pick second point near opposite edge
and change zoom magnification until one-half the coincident distance is covered to
second point.
(11) Repeat match.
Continue to match images.
Match scales until best fit
between map and’ image is obtained.
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