Mitsubishi Electric WD-73640 Technical Training Manual page 34

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4. In the Top 16:9 Alignment Mode, pressing <  > or <  > will cause the geometry pattern to be displayed
with 30 different preset amounts of correction to the Top Red Line. Toggle through them until you find the one
with the straightest Red Line. Again, count the patterns as you cycle through them. When you find the pat-
tern with the straightest line, press <VIDEO>. The Center Red Line will be displayed in the pattern.
5. In the Center 16:9 Alignment Mode, pressing <  > or <  > will cause the geometry pattern to be displayed
with 30 different preset amounts of correction to the Center Red Line. Toggle through them until you find the
one with the straightest Red Line. Again, count the patterns as you cycle through them. When you find the
pattern with the straightest line, press <VIDEO>. The Bottom Red Line will be displayed in the pattern.
In the Bottom 16:9 Alignment Mode, pressing <  > or <  > will cause the geometry pattern to be dis-
6.
played with 30 different preset amounts of correction to the Bottom Red Line. Toggle through them until you
find the one with the straightest Red Line. When you find the pattern with the straightest line, press
<VIDEO>. Press <ENTER> then <EXIT> to exit and save the 4:3 and 16:9 data.
7.
Select the Geometry Test Pattern (See HVPOS). If Geometry is acceptable, press <EXIT> to quit.
4:3 MODE
Select Straightest Red Line (Top)
Select Straightest Red Line (Center)
4:3 MODE
Select Straightest Red Line (Bottom)
34

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