Getting Acquain
tedwithYourInstrument
3. Connect the RS-232 cable between the
RGBHV Measurement Interface Unit and
theCOM1porto
n the VM Series system.
4. Verify that the Use MIU checkbox on
the Configuration > Operation tab is
selected.
Option VGA S etup 2 - VGA Connector to 5X Cable
Use this setup for testing PC and play-out device video when it is not convenient to use the RGBHV Measurement
Interface Unit. To ensure accurate measurements, connect the signals to the V M Series system using the T-connectors
and precision terminations on CH1-CH4. You must use 75 Ω terminations on CH1–CH3 (used for GB R) and 2.21 kΩ and
301 Ω terminations on CH4 (used for H Sync and V Sync measurements). This method requires y ou to change the signal
and termination connections on CH4 for certain horizontal and vertical m easurem ents. The VM Series system displays a
dialog box prompting you to make these changes when necessary (the RGBHV Measurement Interface Unit performs these
connection and termination changes internally).
To connect the DUT to the VM Series system using a VGA to 5X cable:
1. Install the included 75 Ω terminations
between the end of the BNC cables and
the instrument input channels 1 through
3, using the included BNC T-connectors.
To achieve accurate measurements, it
is important to attach the T -connectors
directly to the input channel BNCs.
VM Series Video Measurement System Quick Start User Manual 17
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