NVIDIA Corporation
10
Frame Synchronization User’s Guide
– Version 3.0
C
HAPTER
2
NVIDIA Frame Synchronization
Additional Setup Instructions
This section discusses the following topics that provide additional information and steps
that may be needed to achieve successful genlock:
•
“Restoring an Unstable Display” on page 10
•
“Synchronizing to the External House Signal” on page 10
•
“Understanding the Sync and Connection Status Indicators” on page 12
Restoring an Unstable Display
If your display becomes unstable and you want to restore it to its original configuration,
do one or more of the following:
• Click
Restore Defaults
and then click
Apply
.
• Disconnect the external house sync.
Synchronizing to the External House Signal
This section describes other steps you may need to take after connecting a house sync
signal for the first time, or after clicking
Restore Defaults
and then
Apply.
Matching the External House Signal Frequency
After connecting the house sync, the external sync signal frequency is displayed in the
section
Incoming Rate
in the control panel.
• If the rate that you previously selected from the list is different, then locate the
matching frequency from the list and click
Apply
.
• If the rate is not listed, but the listed values are within 0.5 Hz of the actual signal, then
enter the frequency directly into the list box and click
Apply
.
Adjusting for Interlaced External House Signals
If the external signal is an interlaced signal, then check the
Sync to field 1
check box and
click
Apply
.
Generating a Sync Frequency Slower than the External House
Signal
If the external sync frequency is not support by your display because it is too high, you
can use the external house signal to generate a sync signal of a reduced frequency by
sampling the external signal.
