JRC JMA-5912-6 Instruction Manual page 270

[I] Test Video
Test Video is used to check whether the video signals under target acquisition and tracking are inputted to
and processed in the target detection circuit normally.
However, it is sufficient to check that VDH in Test Video is displayed.
Note: Test Video may not be displayed for a target which is not yet acquired or tracked. Test Video may
not be displayed either if the [GAIN] dial or [SEA] dial is not properly adjusted.
Procedures 1
2
3
4
If any target displayed clearly in the radar display is not displayed in the Test Video mode, the target
detection circuit of the Target Tracking unit may have a trouble
Cancellation 1
2
Press the [TT MENU] key.
Open the TT Test Menu by performing the following menu operation.
9. TT Test Menu
Press the [1] key.
The setting items for Test Video will be displayed.
Select the test video to be displayed.
In general, VDH is sufficient for target display checks in test video mode.
Press the [1] key while the TT Test Menu is displayed.
The setting items for Test Video will be displayed.
Press the [1] key
The test video display will be turned off.
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