Philips 7629 Service Manual page 58

Upper Corner Parabola (UCP) Aligns straight vertical lines in the upper corners of the
screen.
Lower Corner Parabola (LCP) Aligns straight vertical lines in the lower corners of the
screen.
East West Trapezium (EWT) Align straight vertical lines at the middle of the screen.
Figure: Vertical Menu
Vertical:
Vertical slope (VSL) Aligns the picture so the proportions are the same at the top and
bottom of the screen. This alignment must be performed first, before all other vertical
alignments. Turning SBL ON will assist in performing this alignment.
Vertical Amplitude (VAM) Aligns the height of the picture (other vertical alignments are
NOT compensated).
Vertical S-Correction (VSC) Aligns the vertical linearity, so that the vertical intervals of the
grid-patterns are the same over the entire height of the screen.
Vertical Shift (VSH) Aligns the vertical center of the picture to the vertical center of the
CRT. After performing this alignment, it may be necessary to perform the VAM
alignment again.
Vertical Zoom (VX) Adjusts picture height.
Service Blanking (SBL) Turns the blanking of the lower half of the screen ON or OFF (to
be used in combination with the vertical slope alignment).