Service manual

CP-850FX Service Manual
Europe R&D
57
5.5.6.2 SCART Pin 8 Data (Slow Switching)
When there is a signal from SCART 1 pin 8 or SCART 2 pin 8 (named the Slow Switching SSW
signal) the TV will enter AV mode, unless the user forces another source (which is possible even
though slow switching is present).
Aspect Switching Format Name
Position Ratio Voltage Level Tube 16:9 Tube 4:3
CENTRE 4:3 HIGH 4:3 FULL SCREEN
CENTRE 16:9 MEDIUM FULL SCREEN 16:9
The SCART 1 signal SSW1 has priority over SSW2.
5.5.6.3 Picture Format Description
From the information collected from the above sources is the input, from which the TV must
decide which format to select. The WSS data always has priority over Slow Switching.
If no valid data is received from either source, then a default value must be assumed (this is
controlled also by the user by the use of “ZOOM AUTO” in the “FEATURES” menu).
5.3.1.8.1 16:9 CRT
Formats available with 16:9 cathode ray tube;
4:3 (AUTO selectable)
14:9 (AUTO selectable)
ZOOM 14:9 (AUTO selectable)
ZOOM 16:9 (AUTO selectable)
FULL SCREEN (AUTO selectable)
PANORAMA (only available/selectable by the user)
FAVOURITE (only available/selectable by the user)
The table below gives a summary of the FORMAT modes available with a 16:9 CRT, and their
given properties.
Zoom factor – 16:9 CRT
Format Name Vertical Horizontal Description Application
4:3 100% 75%
Picture is centred with
black bars at the left and
right hand side of the
display
Standard 4/3 picture
with 576 active lines
14:9 114% 87%
Picture is centred with
black bars at the left and
right hand side of the
display
14:9 picture – letter
box format with 504
active lines
ZOOM 14:9 114% 100%
Picture is displayed filling
the full width of the screen
by incorporating a small
horizontal geometrical
error (typically 8% linear)
14:9 picture – letter
box format with 504
active lines
ZOOM 16:9 133% 100%
Picture is displayed filling
the full screen (width and
height)
16:9 picture – letter
box format with 430
active lines
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