Tektronix SPG600 Service Manual page 87

Eye Pattern Check
SPG600 & SPG300 Sync Pulse Generators Service Manual
This test verifies the signal level and rise/fall times of the SDI 1 and SDI 2 outputs.
The following equipment is required for the test:
Video measurement set
Ω
75 BNC cable
Ω
75 coaxial terminator
Perform the following procedure to verify the signal level and rise/fall times of the
SDI 1 and SDI 2 outputs.
Use the equipment connection and controls from the previous test.
1. Press the Measure button on the video measurement set to open the Measure
mode display.
2. In the Measure mode display, touch the SDI Eye Diagram application to open
the Eye Diagram display.
3. Push the Menu button.
4. In the Eye Diagram display, touch the Average soft key to set the value for Eye
Persistence to Infinity.
5. In the Eye Diagram display, touch the Measure soft key to open the Measure
submenu.
6. In the Measure submenu, touch the following soft keys to toggle each
measurement display on: Eye Amplitude, Rise\Fall Times, and Rise\Fall
Adjusted.
7. Verify that the eye amplitude and rise and fall times values are as follows:
Eye amplitude: 720 mV to 880 mV
Rise and fall time: 400 ps to 1500 ps
8. Change the BNC cable connection from the SDI 1 connector to the SDI 2
connector.
9. Repeat step 7.
SPG600 Option 03 Only. Perform steps 9 through 12 if Option 03 is installed in your
SPG600.
9. Change the BNC cable connection from the SDI 2 connector to the SDI 3
connector.
10. Repeat step 7.
Performance Verification
4-15