Tektronix AVG1, User Manual

Page: 21 / 146

Getting Started
AVG1 Analog Video Generator User Manual
1- 3
Functional Check
For this procedure, you will need a television monitor, a 75
Ω
coaxial cable, and
a 75
Ω
termination.
To determine if the module is operating correctly, follow these steps:
1. If the module is not installed into the platform, use the installation proce-
dures on page C--2.
2. Power on the platform. The platform runs a self test on all modules.
3. To determine if the self test was successful, push the Module button. Check
the display for the icon that represents the module you are inspecting. If the
module does not appear, refer to
Troubleshooting
in the
AVG1 Analog Video
Generator Service Manual .
4. If your module was ordered separately and you installed it in the platform,
and you do not have another AVG1 Generator module already installed in the
platform, install signal sets using the procedures on page C--6.
5. Wait 20 minutes for the instrument to warm up at nominal ambient
temperature.
(Signal amplitude and DC offset may vary slightly over a
range of temperatures.)
6.
Perform self calibration as follows:
a. Terminate the three rear-panel signal outputs.
b. Push the Utilities button and then touch Module Self Cal .
NOTE
. The original calibration file will be replaced by the new one.
c. Touch the Self Cal icon for the module you are testing
d. Touch Start Cal . The Self Cal takes 2 to 5 minutes depending on the
module. An error message indicates a failed calibration. If the Self Cal
fails, contact your Tektronix Representative for assistance.
e.
When the Self Cal is successful, proceed to step 7.
7. Select a signal set and output signal that are compatible with your monitor. A
composite signal is preferred because it tests more of the module’s hardware.
8. Connect the rear-panel Output 1 connector to the television monitor’s input.
9.
Configure the channel outputs for composite as follows:
a. Push the Test Signals front-panel button.
b.
Touch
Module Parameters
.