Technical information

+------------------------------------------------------------------------+
¦ Display ¦ Mode 4 ¦ Mode 3 ¦
+-----------------------+------------------------+-----------------------¦
¦ 8517 ¦ RV352 or RV351 ¦ RV350 ¦
+-----------------------+------------------------+-----------------------¦
¦ 9517 ¦ RV352 ¦ RV350 ¦
+------------------------------------------------------------------------+
PICTURE 43
Figure 8-12. Geometry Adjustments
16. Adjust the following trapezoid controls until the edges of the pattern
are vertical.
+------------------------------------------------------------------------+
¦ Display ¦ Mode 4 ¦ Mode 3 ¦
+-----------------------+------------------------+-----------------------¦
¦ 8517 ¦ RV358 ¦ RV358 ¦
+-----------------------+------------------------+-----------------------¦
¦ 9517 ¦ RV359 ¦ RV358 ¦
+------------------------------------------------------------------------+
17. Adjust RV203 (V.ANGLE) until the edges of the pattern are vertical.
18. You may need to repeat the adjustments for RV307, RV305, RV352, RV358
and RV203.
19. Press F3 to return to the setup patterns.
20. Press ESC to return to the selection menu.
21. Select mode 5. If mode 5 is not available, ignore this step. Select
option 1, pattern A (Crosshatch).
a. Adjust RV353 until the vertical edges of the pattern are straight.
b. Set width (RV357) until the distance between each vertical edge of
the pattern and the bezel is 7.5 mm ±0.5mm.
c. Set height (RV216) until the distance between each horizontal edge
of the pattern and the bezel is 7.5 mm ±0.5mm.
22. Press F3 to return to the setup patterns.
23. Press ESC to return to the selection menu.
24. If you have already set up mode 3, because mode 4 was not available,
ignore this step.
Select mode 3. Select option 1, pattern A (Crosshatch).
a. Adjust RV350 (AMP VGA) until the vertical edges of the pattern are
straight.
b. Set width (RV354) until the distance between each vertical edge of
the pattern and the bezel is 11 mm ±0.5mm.
c. Set height (RV213) until the distance between each horizontal edge
of the pattern and the bezel is 11 mm ±0.5mm.
25. Press F3 to return to the setup patterns.
26. Press ESC to return to the selection menu.
27. Select mode 2. Select option 1, pattern A (Crosshatch).
28. Set height (RV212) until the distance between the outer edge of the
pattern and the bezel is 11 mm ±0.5mm.
29. Press F3 to retunr to the setup patterns.
30. Press ESC to return to the selection menu.
31. Select mode 1. Select option 1, pattern A (Crosshatch).
32. Set height (RV211) until the distance between the outer edge of the
pattern and the bezel is 11 mm ±0.5mm.
33. Do focus and convergence adjustments after these procedures.
PS/2 Displays Maintenance Manual
Geometry Adjustments
¦ Copyright IBM Corp. 1993
2.5.2.4.4 - 2