Philips L01.1A Service Manual page 33

• Lower Corner Parabola (LCP) Align straight vertical
lines in the lower corners of the screen.
• East West Trapezium (EWT) Align straight vertical lines
in the middle of the screen.
H O R I Z O N T A L >
V E R T I C A L >
H P
H B
H S H
E W W
E W P
U C P
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Figure 8-9
Vertical:
• Vertical slope (VSL) Align the vertical centre of the
picture to the vertical centre of the CRT. This is the first
of the vertical alignments to perform. For an easy
alignment, set SBL to ON.
• Vertical Amplitude (VAM) Align the vertical amplitude
so that the complete test pattern is visible.
• Vertical S-Correction (VSC) Align the vertical
linearity, meaning that vertical intervals of a grid
pattern must be equal over the entire screen height.
• Vertical Shift (VSH) Align the vertical centring so that
the test pattern is located vertically in the middle. Repeat
the 'vertical amplitude' alignment if necessary.
• Vertical Zoom (VX) The vertical zoom is added for the
purpose of development. It helps the designer to set a
proper values for the movie expand or movie(16x9)
compress. Default value is 25.
• Service blanking (SBL) Switch the blanking of the lower
half of the screen ON or OFF (to be used in combination
with the vertical slope alignment).
• H60 Align straight horizontal lines if NTSC input (60 Hz)
is used i.s.o. PAL (50 Hz).
• V60 Align straight vertical lines if NTSC input (60 Hz) is
used i.s.o. PAL (50 Hz).
H O R I Z O N T A L >
V E R T I C A L >
V S L
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Figure 8-10
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Alignments L01.1A
In the table below, you will find the GEOMETRY default
values for the different sets.
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8.3.5 Audio
A T
A F - M
A 2 T
Q S S
F M I
Figure 8-12
No alignments are needed for the audio sub menu. Use the
given default values.
AT
Default value is 8.
AF-M
Default value is 44.
A2T
Default value is 250.
QSS
OFF for mono sets, ON for stereo sets.
FMI
OFF for mono sets, ON for stereo sets.
8. GB 73
   
   
   
   
   
   
   
   
   
  
   
   
   
   
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