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Before convergence adjustment.
Make sure each Red, green and Blue LCD Panel has been correctly
installed, and that focus adjustment has been completed before preform-
ing convergence adjustment.
Screws E, F and G (Figure-3 on page-46.) are for convergence adjust-
ment.
Image movement and screw turning.
To make parallel. :
To converge vertical line.:
To converge horizontal line.:
Convergence adjustment
1. Set the image to "service mode" and project a grid pattern on a screen.
*
When the Green LCD panel was replaced, project a cyan or yellow grid pattern.
*
When the Red LCD panel was replaced, project a yellow grid pattern.
*
When the Blue LCD panel was replaced, project a cyan grid pattern.
2. Loosen the 2 screws-D (Figure 3 and 4 on page46), or check that
they are loosening.
To make parallel.
3. By using screw-E, turn the grid pattern which needs adjustment
and make it parallel with standard grid pattern.
To converge vertical line.
4. By using screw-F, move horizontally the grid pattern which needs
adjustment and converge it on vertical lines of standard grid pat-
tern.
5. Tune finely by repeating Steps 3 and 4.
To converge horizontal line.
6. By using screw-G, move vertically the grid pattern which needs
adjustment and converge it on horizontal lines of standard grid
pattern.
7. Tune finely by repeating steps 3 through 6.
8. Tighten the 2 screws-D (previously loosened in step 2 above) with
the allen wrench.
9. After tightening the screws, check the adjusted convergence con-
dition. If not aligned repeat steps 2 through 8.
(The convergence condition may shift by tightening the screw-D.)
LCD Panel convergence adjustment.
Adjustment screw "E" turns the image.
Adjustment screw "F" moves the image right and left.
Adjustment screw "G" moves the image up and down.
(Figure-5)
(Figure-6)
(Figure-7)
-47-
Caution:
D
'
R
ON
T REPLACE THE
ED
LCD
PANELS SIMULTANEOUSLY
It becomes impossible to adjust a convergence, if all the LCD pan-
els are simultaneously replaced. When all the LCD panels are dam-
aged, replace the whole LCD panel / prism assembly.
D
'
ON
T USING LIGHT BLOCK SHEET
Don't using light block sheet. It becomes the cause which burns
.
polarizer
Convergence
necessity
Standard
Fig.-5
Fig.-6
Fig.-7
, G
B
REEN AND
LUE
!
.
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