Mitsubishi Electric WD-73C1 Service Manual page 33

MODELS: WD-73640 / WD-73740 / WD-73840 / WD-73C11 / WD-73CA1 /
2. Manual Geometry Alignment
Note: Upon entering the Manual Geometry Alignment Mode the first time, the geometry may appear distorted
because all factory geometry correction is automatically disabled. Press <EXIT> to quit and re-enable
the factory geometry correction. Pressing <1> <ENTER> and <EXIT> will cause the TV to operate with
out factory geometry correction (distortion will be present).
Note: At any time the original factory geometry data can be restored from backup:

From the Data Transfer & Geometry Menu <MENU><2-4-5-7><0>, select "RESTORE
GEOMETRY DATA FROM BACKUP" <ENTER>.
Cursor +
+
Phase 1 - 16 Point Geometry Alignment
1. 16 Adjustment Points are indicated by white dots around the edge of the raster. The adjustment position is
indicated by a + cursor.
2. Starting from the upper left corner, use the <> buttons to align the + at each point in a straight line,
flush with the bezel as a reference. See example above.
Note: Only the cursor will move. The Geometry Pattern will not change.
3. After adjusting each point, use the <CH-UP> or
and repeat until all 16 points have been adjusted.
4. After all 16 points are adjusted and the cursor is returned to the original starting point, press <ENTER> then
<EXIT>. Correction will be automatically calculated and saved and the Manual Geometry Alignment will be
terminated.
5. Re-activate the Manual Geometry Alignment. The geometry pattern will appear with the corrections applied. If
Geometry is acceptable, press <EXIT> to quit. To touchup the raster geometry, proceed to Phase 2.
Phase 2 - Geometry Touch-up Alignment
1. If additional correction is necessary after performing the Manual Geometry Alignment, re-enter the Manual
Geometry Alignment mode.
2. Use the <CH-UP/CH-DOWN> or
3. Use the <> buttons to indicate the direction and amount of correction necessary at the particular
point. Note: Only the cursor will move. The Geometry Pattern will not change.
4. Press the <INFO> button to apply the correction. The Geometry Pattern will now show the correction.
5. Repeat steps 2, 3 and 4 as needed.
6. Press <ENTER> then <EXIT> to save your changes. The Manual Geometry Alignment will be terminated.
7. To proceed to Phase 3, re-activate the Manual Geometry Alignment.
WD-82740 / WD-82840 / WD-82CB1 / WD-92840
Align Cursor + Flush With Bezel Edge
>
<
/>
< buttons to shift the cursor to the point needing correction.
Page 33
button to shift the cursor to the next point clockwise
Adjustment Points
(16 Total)