Module configuration – Grass Valley 8941 User Manual
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8941 Instruction Manual
Module Configuration
Module Configuration
When installing the 8941 module, there is an eight-position DIP switch
(SW1) that must be checked and/or set. Refer to
SW1 and the possible settings.
Figure 5. SW1 Location and Settings
Refer to
for the functions and descriptions of SW1.
Table 2. DIP Switch SW1 Functions
Switch #
Function Name
Description
S1–1
NTSC SETUP
When enabled (DOWN), it determines if active video has set up (with 525 inputs only)
S1–2
INPUT ROUND
When enabled (DOWN), input video is rounded to eight bits
When disabled (UP), input video is truncated to eight bits
With 8-bit video the last two (potentially noisy) LSBs are set to zero
S1–3
VID ALARM
When enabled (DOWN), module health alarm is activated if no video is present
S1–4
EQ ALARM
When enabled (DOWN), module health alarm is activated if an EQ warning condition exists
S1–5
DIAG. MODE
When enabled (DOWN), the serial port provides module status to a terminal, (usually set to
OFF for normal operation)
S1–6
CROSS-COLOR REDUCE
When enabled (DOWN), a notch filter near the color burst frequency reduces cross-color
artifacts
S1–7
V BLANK PASS
When enabled (DOWN), vertical information in the input video is passed
When disabled (UP), vertical information in the input video is blanked by 21 lines for NTSC
and 25 lines for PAL
S1–8
TEST PATTERN
When enabled (DOWN), a full field color bar test pattern is available if
input video is present
Switch SW1