Convergence Adjustment - Sanyo PLC-XF47 Service Manual

■ Convergence adjustment

For convergence adjustment, use Green as the reference standard. Align Red and Blue with Green by
adjusting the position and angle of the Red and Blue LCD panel. Screws X, Y and Z are for convergence adjustment. When
adjusting the Green reference LCD panel, both on Red and Blue LCD panel should be adjusted with Green LCD panel.
[Before adjustment]
Make sure each Red,Green and Blue LCD panel unit
has been correctly installed,and that all focus adjustments
have been completed before preforming convergence
adjustments.
Caution
Do not insert the object into the optical block for blocking
the light, otherwise, optical parts may be damaged.
Line Movement and Screw Turning
1. Adjustment screw "Z" to turns the line.
2. Adjustment screw "X" to moves the line right and left.
3. Adjustment screw "Y" to moves the line up and down.
Screw Z
Red or
Blue
GREEN
Screw X
Screw Y
X
Red (or Blue) Panel convergence adjustment
1. Display Red (or Blue) and Green color crosshatch pattern by setting
with service mode.
2. Turn the Red lines to be paralleled with Green lines by adjusting
screw-Z.
3. Adjust screw-X to converge Red and Green vertical lines.
4. Repeat steps 2 and 3 until Red and Green vertical lines converged
properly.
5. Adjust screw-Y and converge Red and Green horizontal lines prop-
erly.
6. Repeat step 2,3 and 5 until Red and Green lines converged properly.
7. Tighten screws-A.
8. Remove Adjustment Tool from Prism/LCD panel unit.
Note; If Red and Blue lines do not converge with green
lines, loosen screws-A of Green reference panel
and adjust Green panel slightly.
Note; When removing an Adjustment Tool after adjustment,
loosen screws-B of Adjustment Tool first, otherwise
adjustment may be changed.
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Optical adjustment
Z
Y
A
LCD panel
unit
Prism/LCD panel unit
(Prism/LCD Panel
assembly)