Tektronix WVR6020 Technical Reference page 80

Incoming Inspection
Dolby Decode (Option
DDE)
66
1. Press the FACTORY button to restore the factory preset.
2. Press and hold the DISPLAY SELECT 4 button to display the AUDIO
pop-up menu.
3. Select Audio Input > AES A.
4. Press the Display Select 4 button again to dismiss the pop-up.
5. Set the Dolby generator for a Dolby D output using the following steps:
a. Press Gen to display the Gen Stream Sel message.
b. Press the Up/Down buttons to select a Dolby D stream as indicated by the
leading "D" in the bit stream name.
c. Press Enter to activate the selected signal.
6. Connect the Digital Output of the Dolby generator to the AES A1-2 In BNC
with a 75 Ω cable.
7. Check for the "DOLBY D" message in bars 1 and 2 of the Audio display.
8. Press and hold the DISPLAY SELECT 4 button to display the AUDIO
pop-up menu.
9. In the Audio Input submenu, select Dolby 2. (Factory preset configured
Dolby 2 to decode Dolby from the AES A1-2 input.)
10. Press the DISPLAY SELECT 4 button again to dismiss the pop-up.
11. Check that the audio display shows the decoded Dolby signal.
12. Check that the Dolby program type shown in the top line of the audio display,
for example "D 3/2 L", agrees with the Dolby generator setting.
13. Change the Dolby generator to a Dolby E output:
a. Press the Up/Down buttons to select a Dolby E stream as indicated by the
leading "E" in the bit stream name.
b. Press Enter to activate the selected signal.
14. If option DDE is present, check that the audio display shows the decoded
Dolby signal and that the Dolby program type shown in the top line of the
audio display, for example "E 2+2", agrees with the Dolby generator setting.
15. If option DDE is not present, check for the "DOLBY E" message in bars 1
and 2 of the Audio display.
16. Record Pass or Fail for Dolby Decode in the test record.
Waveform Rasterizers Specifications and Performance Verification