Deflection Adjustments - DEC VR297 User Manual

20
Adjustments
2.4 Deflection Adjustments
NOTE
You must perform the deflection adjustments if the deflection
board (D board) is replaced.
This section covers the following adjustments:
Vertical linearity
Vertical centering
Vertical height
Horizontal linearity
Horizontal phase
For these adjustments, select the circle-crosshatch screen pattern from
your host system.
The following figure shows the names and the location of adjustment
controls on the D board:
D Board controls ma-0953-89
Horizontal centering
Horizontal width
Side pincushioning
Trapezoid
Focus