GRASS VALLEY TRINIX NXT -, Installation Manual

Page: 129 / 449

Trinix NXT — Installation and Service Manual 129
Summary of Installation Procedure
Note The 512x1024 uses the NR-33000 NIC/Sync/OPM boards exclusively for
sync reference.
Video standard operation (that is, NTSC, PAL, or HDTV) is detected
automatically by the system. The sync signal can be video, black burst,
2 V composite sync, 4 V composite, or tri-level.
Note
Tri-level reference
should be used with HD.
Each sync input uses looping-75-ohm BNC connectors; if a loop
through is not used, the loop BNC should have a 75-ohm terminator.
2. Re-configure the switch point if desired.
The switch point is factory-set to the recommended video line for the
standard that is detected.
A V-phasing feature is available with the following boards:
• NR-33000
• SR-33000 with Rev B FPGA Software Update
• SR-33500
• TRX-SR
The V-phasing feature allows you to adjust the switch point from the-1
line to +2.5 lines if necessary. For more information, see
NR/SR-33000 /
SR-33500/ TRX-SR V-Phasing on page 170 .
Note If you make adjustments on the SR-33500 as part of this step, you may want
to wait until all remaining steps in this list have been followed and any addi-
tional adjustments made before reinstalling the board.
3. Select the desired sync reference line on each Output board.
This step applies to systems with more than one sync reference. Each
output board provides a block of 32 outputs and each block is assigned
to Sync line 1 by factory default.
• Sync line 1 corresponds to the Primary Ref IN 1 connector on
the rear panel. If additional references are used, the DIP
switches can be set to assign each board to one of four possible
sync lines. See
Output Board Configuration on page 185 .