TBS100/100D
SECTION 4
TBS100OPS
20/10/06
www.snellwilcox.com
Version 2 Issue 5
4.4
Using the Dedicated Push Buttons
INPUT
These buttons allow the input signal connected to
the rear panel to be selected for processing.
Selections available are:
Composite A
Composite B
Y/C
A prolonged push of any of these buttons will reveal
the Input Menu.
Note that these buttons are mutually exclusive and
only one of the inputs may be selected.
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Input…
This function allows the input parameters to be set.
Input
Input Select...
Input Standards...
Decoder...
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Input Select
This allows any of the three sources of video input
signal to be selected for processing.
Input Select
Composite A
Composite B
YC
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Input Standards
The decoder employs an auto standard detection
system. It will auto detect any of the standards that
are checked in the list of standards.
Input Standards
PAL
PALN
NTSC
PALM
N4.43
SECAM
Mono 625
NTSCJ
Mono 525
In the example above it will auto detect all
standards except NTSCJ, Mono 625 and Mono
525. Any number (one or more) of standards may
be selected. For example, in a given situation where
it is known that only PAL and NTSC input signals
are expected, only the PAL and NTSC standards
should be checked.
The decoder will then only auto detect between PAL
and NTSC standards. Other standards will not be
decoded and will produce an unstable lock.
To force the unit to decode only one standard,
check that standard and uncheck all others.
Note that at least one standard must be selected; if
an attempt is made to uncheck all items the last
standard selected will remain checked and become
the only standard to be decoded.
For NTSC signals either NTSC
or
NTSCJ may be
checked, but it is not possible to check both NTSC
and
NTSCJ.
The output
line
standard will be the same as the
detected input standard. i.e. the output signal will be
at a line rate of 625 if the detected input signal has
a line rate of 625; similarly the output signal will be
at a line rate of 525 if the detected input signal has
a line rate of 525.
NTSCJ
When this function is enabled the decoder
will correctly process a NTSCJ signal (an NTSC
signal without pedestal)
