Instruction manual

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Video Test Signal Menu
A full-field video test signal is available and the user can display different test
patterns by selecting the Pattern field. Press the

buttons until the Video Test
Signal menu appears (shown below).
Pattern Field Default: Off
Press the
4
button until the cursor is at the Pattern label, and press the ENTER
button to move into the field. Press the

buttons to display the video test
patterns. Choose from the options listed in Table 3-1.
Table 3-1: NTSC/PAL M Video Test Options
Press the ENTER button and a warning message appears saying that the current
video display will be interrupted if the action proceeds.
Press any arrow button (
4
) to back out of the field and leave it unchanged.
Otherwise, press the ENTER button to proceed.
Note: Test signals override any active service component, and the DSR-4550
displays diagnostics over the video test patterns if diagnostics are enabled.
To disable the selected signals use the

buttons to select Off and press the
ENTER button, or exit the field.
PATTERNS
Off (Default)
Color Bar
100 IRE Ramp
NTSC 7 Composite
Red Field
5 Step Stair
Unmod Y Ramp
525 Composite/625 CCIR 17
525 Combination/625 CCIR 18
525 Color Bar/625 CCIR 330
525 Y Ramp/625 CCIR 331
Program (Off)
E Off
VIDEO TEST SIGNAL Pattern
Press E to continue or to stop
CAUTION: This selection replaces video