Technical information
2.5.2.4.7 Focus and Convergence
Select mode 4 (or mode 3 if not available) to display the test patterns.
1. Select option 1, pattern A (Crosshatch),
2. Adjust the focus control on the video shield to focus the vertical
lines.
3. Adjust the focus control on the EHT transformer to focus the
horizontal lines.
4. Press PF3 to return to the setup patterns. Select option 5, pattern E
(Focus Pattern), to check the focus settings.
5. Press PF3 to return to the setup patterns. Select option 1, pattern A
(Crosshatch), and press the spacebar to get a white crosshatch
pattern.
6. Adjust the H.STAT control on video shield to set convergence.
This completes the alignment procedures.
PS/2 Displays Maintenance Manual
Focus and Convergence
¦ Copyright IBM Corp. 1993
2.5.2.4.7 - 1