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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).
The table below lists the default GEOMETRY values for the different television sets.
Table: Default Geometry Values
Alignment
Description 20RFL260/37R
BTSC
NON-DBX
21PT839B/85R
BTSC DBX
27RFL260/37R
BTSC DBX
20RFL250/37R
BISONIC
21PT639A/85R
BISONIC
HP Hor. Parallelogram 31 33 33 31 33
HB Hor. Bow 30 30 30 30 30
HSH Hor. S hift 35 39 39 35 39
EWW East West Width 34 35 35 34 35
EWP East West Parabola 33 22 22 33 22
UCP Upper Corner
Parabola
35 41 41 35 41
LCP Lower Corner
Parabola
35 41 41 35 41
EWT East West
Trapezium
43 31 31 43 31
VSL Vert. Slope 33 31 31 33 31
VAM Vert. Amplitude 33 25 25 33 25
VSC Vert. S -correction 32 35 35 32 35
VSH Vert. S hift 35 21 21 35 21
VX Vert. Zoom 33 25 25 33 25
Audio