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6-6 98770 Adjustments
Convergence
This adjustment converges the red, green and blue electron beams so that as the beams scan
across the display area, all beams scan in unison as one dot.
Set the switch on the A13 (A33, A53, or A54) assembly to its center position (Normal position).
Adjust brightness full CW (maximum brightness).
Procedure
1. From the keyboard, type in CONVERGE and press execute.
2. A"
+"
character will appear on the screen along with a number on the right-hand side .
• The
"+"
character is used to converge the three beams in the area that the
"+"
appears .
• The number on the right-hand side indicates the step number (13 total) and it appears
directly opposite the convergence controls used for that step.
3. On all 13 convergence steps,
a. converge the red and green"
+"
to make yellow.
b. converge the blue"
+ "
to make white.
c. If on Convergence steps 1, 6, or 8, refer to procedural step 4 below.
d. press (
CONTINUE)
4. On steps 1, 6, and 8, you may have to adjust the blue lateral adjustments. (A2)
If the blue is to either side of the converged
+,
use the appropriate blue lateral adjust-
ment to center the blue
+
horizontally on the converged red and green
+.
Example
On step 1 adjust the center blue lateral
On step 6 adjust the left blue lateral
On step 8 adjust the right blue lateral
Red moves along an upper right to lower left line / '
Green moves along an upper left to lower right line'
Blue moves vertically up and down
t
r,)iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii All 13 Steps iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii"
Steps 1. 6 and 8
A
Converge Red and Green
to Make Yellow
B
Converge Blue
to Make White
Use Blue Lateral to
Move Blue Left or
Right as Necessary
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